Qingdao Hifounder Graphite Co,.Ltd
▷Graphite Raw Materials
▷Graphite Molds
▷Graphite Mechanical Seals
▷Graphite Felt
▷Graphite Rods
▷Graphite Rope
▷Graphite Packing
▷Graphite Foil
▷Graphite Plates
▷Graphite Rotors & Shafts
▷Colloidal graphite
▷Graphite Blocks
Graphite Products
Supply & Solutions
Marketing Team
2024.03
Energy Industry
Steel Industry
Paper Manufacturing
Electric Industry
Food Industry
Semiconductor Industry
Construction Industry
Glass Forming
Non-Ferrous Industry
Chemical Industry
58
ASTM Standard Test Method
52
R&D Center
The Applications
Hifounder Served
Hifounder manufacture to specifications. Please contact for assistance with drawings and product technical details.
INDEX
56
Applications
29
Graphite Products
Introduction
04
Test Equipments
05
06
Graphite Raw Materials
54
Hifounder Intl Teams
61
Chinese Standard Test Method
At Hifounder, we offer an extended range of specialist products and professional services, backed by greater technical expertise. By bringing together the Group’s Graphite products family as one global supplier, we are committed to meeting the needs of our customers and the demands of the graphite products industry.
Our graphite raw material are coarse particle graphite and high purity mold pressed/isostatic pressed graphite. The graphite Products ,including graphite molds, electrode, carbon fiber are widely used in photoltaic,machanical indusry,electronic semiconductor,vacuum furnace and non-ferrous smelteries etc.
Our R&D Center enhances traditional products to meet the requirements of both the market and the relative industries. Additionally, we develop, test, and design products with improved innovation and an agile supply chain. Our engineering team boasts extensive experience in the graphite products industry.
Since our founding in 2003, with a focus on graphite product manufacturing, we have never stopped evolving. Our story is indelibly linked with hundreds of factories around the world. This exciting change invites you to join us on our journey.
Electric Thermostatic Drier is often used for drying graphite materials, Graphite electrodes, etc. Its selection points include temperature range, Interior volume, ventilating performance, control system accuracy and corrosion resistance.
Laser Particle Size Analyzer is a well-suited machine for measuring the particle size distribution of graphite powder. Graphite can react with some liquids used in wet dispersion techniques. Dry dispersion avoids potential changes in the particle properties caused by liquids.
Muffle furnace is a versatile tool for heating materials in a controlled environment with a max working temperature of 1450°C. It is well-suited for simply heating graphite to a desired temperature for various purposes.
Moisture analyzers can quickly and accurately measure the moisture content of graphite samples, providing an important basis for graphite purity assessment, processing technology control, storage condition assessment, recycling and scientific research.
Visible spectrophotometer analyzes the composition and structure of graphite products by measuring their absorption or transmittance of light, evaluates the purity of graphite, and distinguishes different types of graphite.
Introductions
Qingdao Hifounder Graphite Co,.Ltd is a new team, but we bring over 20 years of experience in the application R&D and production of graphite products. At Hifounder, we have combined the expertise, skills, and production capabilities of our sister companies to create a new branch focused on manufacturing technology and design for graphite products.。
Test Eqipments
Graphite Raw Materials
Graphite is crystal of carbon and non-metallic material with the natures of silver gray, soft in texture and metallic luster. Mohs hardness is 1~2, specific gravity is 2.2~2.3, and its bulk density is generally 1.5~1.8.
Characteristics of Graphite
The thermal and electrical conductivity of graphite is quite high, its electrical conductivity is 4 times higher than that of stainless steel, 2 times higher than that of carbon steel, and 100 times higher than that of general non-metals. Its thermal conductivity not only exceeds that of steel, iron, lead and other metal materials, but also decreases with the increase of temperature, which is different from general metal materials. At extremely high temperatures, graphite even tends to be adiabatic. Therefore, the thermal insulation performance of graphite is very reliable under ultra-high temperature conditions.
Graphite features excellent lubrication and plasticity. The friction coefficient of graphite is less than 0.1. Graphite can be extended into poromeric and transparent thin flakes. High-strength graphite is so hard that it is difficult to process with diamond tools.
Graphite is chemically stable, resistant to acids, alkalis, and organic solvents. Due to the above unique excellent properties, graphite is increasingly widely used in modern industry.
Applications of graphite
1. Refractory materials: Graphite and its products have the properties of high temperature resistance and high strength. In the metallurgical industry, they are mainly used to make graphite crucibles. Graphite is commonly used as a protective agent for steel ingots and as a lining for metallurgical furnaces in the metallurgical industry.
2. Conductive materials: In the electrical industry, graphite is used to manufacture electrodes, brushes, carbon rods, carbon tubes, positive electrodes of mercury rectifier, graphite gaskets, telephone parts, coatings for TV picture tubes, etc.
3. Wear-resistant lubricating materials: Graphite is often used as a lubricant in the machinery industry. General lubricating oil often cannot be used under high-speed, high-temperature, and high-pressure conditions, while graphite wear-resistant materials can work at high sliding speeds at temperatures of 200 to 2000 ℃ without lubricating oil. Much equipment for transporting corrosive media widely use graphite materials to make piston cups, seals and bearings, which do not need to be lubricated during operation. Colloidal graphite is also a good lubricant for many metals processing (wire drawing, tube drawing).
4. Heat exchange material: Graphite features good chemical stability. Specially treated graphite features the excellent characteristics of corrosion resistance, good thermal conductivity, and low permeability. It is widely used in the production of heat exchangers, reaction tanks, condensers, combustion towers, absorption towers, coolers, heaters, and filters. , pump equipment. It is widely used in petrochemical industry, hydrometallurgy, acid and alkali production, synthetic fiber, papermaking and other industrial sectors, and can save a lot of metal materials.
5. Casting, sand turning, stamping and high-temperature metallurgical materials: Due to the minor coefficient of thermal expansion and the ability to withstand changes in quenching and heat, graphite can be used as a casting mold for glassware. With graphite casting molds, ferrous metal castings are accurate in size, have a smooth surface and a high yield, resulting in significant reduction of metal consumption.
6. Prevent boiler fouling. Tests have shown that adding a certain amount of graphite powder to water (approximately 4 to 5 grams per ton of water) can prevent scaling on the surface of the boiler. In addition, graphite coating on metal chimneys, roofs, bridges, and pipes can prevent corrosion and rust.
7. Graphite can be used as pencil lead, pigment, and polishing agent. After special processing, graphite can be made into various special materials. Such as impermeable graphite, directional high-density graphite, graphite fiber cloth, etc.
The melting point of graphite is extremely high. It begins to melt at 3000°C in vacuum and evaporates at 3600°C. The strength of general materials gradually decreases at high temperatures. However, when graphite is heated to 2000°C, its strength is doubled compared with normal temperature, but the oxidation resistance of graphite gradually increases as the temperature increases.
Amorphous Graphite
| Carbon content（%） | Ash（%） | S (%) | P (%) | Moisture (≤%（%） | Size (mesh) |
| ≥70 | ≤26 | ≤1 | microscale | ≤2% | 100-300 |
| ≥80 | ≤13.5 | ≤0.8 | microscale | ≤2% | 100-300 |
| ≥85 | ≤12 | ≤0.7 | microscale | ≤2% | 100-300 |
| ≥90 | ≤6 | ≤0.6 | microscale | ≤2% | 100-300 |
Specifications
Carbon Raiser
Specifications
| SIZE | Sulfur content | Fixed carbon | Moisture | Powder |
| 1-10mm | 0.05% | 80%min | 1%max | 1%max |
| 1-10mm | 0.05% | 85%min | 1%max | 1%max |
| 1-10mm | 0.05% | 88%min | 1%max | 1%max |
| 1-10mm | 0.05% | 90%min | 1%max | 1%max |
| 1-10mm | 0.05% | 92%min | 1%max | 1%max |
| 1-10mm | 0.05% | 95%min | 1%max | 1%max |
| 1-10mm | 0.05% | 96%min | 1%max | 1%max |
Amorphous graphite, also known as aphanitic graphite, microcrystalline graphite, or cryptocrystalline graphite, is highly regarded in both domestic and foreign graphite markets. It is often referred to as "gold sand." This type of graphite has a high fixed carbon content, minimal harmful impurities, and very low sulfur and iron content. Its quality places it in the category of high-quality microcrystalline graphite.
Most amorphous graphite samples consist primarily of graphite carbon. They exhibit a rigid ash color, metallic luster, and soft texture. With a Mohs hardness rating of 1-2 and a specific gravity ranging from 2 to 2.24, amorphous graphite is chemically stable and unaffected by strong acids and alkalis. Notably, it contains low levels of iron, sulfur, phosphorus, nitrogen, molybdenum, and hydrogen.
Based on its output form, amorphous graphite can be classified into two types: dispersed amorphous graphite ore and dense massive amorphous graphite ore. These distinctions are essential for understanding its various applications and properties.
There are various raw materials for carbon raisers, each with different production processes, including wood carbon, coal carbon, coke, graphite, etc., among which there are many small types under various carbon raiser. High-quality carbon raiser generally refer to carbon raiser that have been graphitized. Graphitization can reduce the content of impurities in the carbon raiser, increase the carbon content of the carbon raiser, and reduce the sulfur content.
Carbon raiser are used during casting, which can greatly increase the amount of scrap steel and reduce the amount of pig iron or eliminate the need for pig iron. In the feeding method of electric furnace smelting, the carbon raiser should be put in together with the scrap steel and other charge. Small doses can be added on the surface of the molten iron. However, it is necessary to avoid feeding large quantities of materials into molten iron to prevent excessive oxidation, resulting in insignificant carburizing effect and insufficient carbon content in castings. The amount of carburizing agent added is determined according to the ratio and carbon content of other raw materials.
Conductive Graphite
Specifications
| Item No. | Fixed carbon (%) | Ash (%) | Size (μm) | Moisture (%) |
| HG-75 | ≥99.98 | ≯0.02 | 75 | ≯0.1 |
| HG-44 | ≥99.98 | ≯0.02 | 44 | ≯0.1 |
| HG-15 | ≥99.98 | ≯0.02 | 15 | ≯0.1 |
| HG-6 | ≥99.98 | ≯0.02 | 6 | ≯0.1 |
Expandable Graphite
Specifications
1. Super low sulfur expandable graphite
| Item | Fixed Carbon(%) | Ash Content(%) | Volatile constituent(%) | Expansion Rate(ml/g) | Sulfur content(%) | PH Value | Moisture(%) | Particle Size above the sieve(%) |
| HGLS32 | 90-99.9 | ≤8.0 | ≤10 | 200-400 | ≤0.03 | 3-7 | ≤1.0 | ≥80 |
| HGLS50 | 90-99.9 | ≤8.0 | ≤10 | 200-350 | ≤0.03 | 3-7 | ≤1.0 | ≥80 |
| HGLS80 | 90-99.9 | ≤8.0 | ≤10 | 150-250 | ≤0.03 | 3-7 | ≤1.0 | ≥80 |
| HGLS100 | 90-99.9 | ≤8.0 | ≤10 | 100-200 | ≤0.03 | 3-7 | ≤1.0 | ≥80 |
Advantage of this product : sulfur can be reduced to a minimum.
Special processing gives conductive graphite its distinctive features, including electrical conductivity, plasticity, acid and alkali resistance, and stable chemical properties against organic solvent corrosion. Currently, this product finds widespread use in the manufacturing of energy storage devices such as lithium-ion, nickel-metal hydride, Ni-Cd, and alkaline zinc-manganese batteries, as well as electronic components.
Expandable graphite, also known as acidified graphite, is a type of flexible graphite. It is obtained by treating high-quality natural flake graphite with an acidic oxidizing agent. It retains the properties of natural graphite, including excellent molding plasticity, flexibility, ductility, and sealability. Widely used as a sealing material, it finds applications in petroleum, chemical, electrical, aerospace, automotive, marine, and instrument industries.
Expandable graphite is a promising engineering material used for fire seals, flame retardants, refractory bricks, crucibles, insulation, liners, soundproofing, and shock-absorbing materials. Its exceptional properties, such as lightness, conductivity, heat resistance, acid-alkali corrosion resistance, resilience, lubrication, and chemical stability, have earned it the nickname 'Sealant King' worldwide.
2. Super fine expandable graphite:
| Item | Fixed Carbon(%) | Ash Content(%) | Volatile constituent (%) | Expansion Rate(ml/g) | Sulfur content(%) | PH Value | Moisture(%) | Particle Size above the sieve(%) |
| HGSF100 | 90-99 | ≤8.0 | ≤15 | 30-120 | ≤2.2 | 4-7 | ≤1.0 | ≥80 |
| HGSF200 | 90-99 | ≤8.0 | ≤15 | 15-50 | ≤2.2 | 4-7 | ≤1.0 | ≥80 |
| HGSF325 | 90-99 | ≤8.0 | ≤15 | 10-20 | ≤2.2 | 4-7 | ≤1.0 | ≥80 |
Advantage of this product : super fine.
3. Average expandable graphite:
Products standard can be adjusted according to client requirement.
Expanded Graphite
Specifications
| Item | Carbon(%) | Volatile(%) | Moisture(%) | Initial expansion temperature | Expansion ratios | PH | Mesh | Particle size(%) |
| HG Low temperature | 90-99 | 13≤ | ≤1 | 130-150℃ | 200-300 | 3-8 | 80 or 50 | ≥80 |
| HG Low temperature | 90-99 | 13≤ | ≤1 | 240-280℃ | 200-300 | 3-8 | 80 or 50 | ≥80 |
| HG32 | 85-99.9 | 13≤ | ≤1 | 150-230℃ | 200-400 | 3-8 | 32 | ≥80 |
| HG50 | 85-99.9 | 13≤ | ≤1 | 150-230℃ | 150-300 | 3-8 | 50 | ≥80 |
| HG80 | 85-99.9 | 13≤ | ≤1 | 150-230℃ | 100-200 | 3-8 | 80 | ≥80 |
| HG100 | 85-99.9 | 13≤ | ≤1 | 150-230℃ | 100-130 | 3-8 | 100 | ≥80 |
| HG-100 | 85-99.9 | 150-230℃ | 50-150 | 3-8 | -100 | ≥80 | ||
| HG-200 | 85-99.9 | 50-150 | 3-8 | -200 | ≥80 |
| Item | Fixed Carbon(%) | Ash Content (%) | Volatile constituent (%) | Expansion Rate(ml/g) | Sulfur content before expansion (%) | Sulfur content after expansion (ppm) | PH Value | Moisture (%) | Particle Size above the sieve(%) |
| HGA32 | 90-99.9 | ≤8.0 | ≤12 | 200-400 | ≤2.2 | ≤1500 | 3-7 | ≤1.0 | ≥80 |
| HGA50 | 90-99.9 | ≤8.0 | ≤12 | 200-350 | ≤2.2 | ≤1500 | 3-7 | ≤1.0 | ≥80 |
| HGA80 | 90-99.9 | ≤8.0 | ≤12 | 150-250 | ≤2.2 | ≤1500 | 3-7 | ≤1.0 | ≥80 |
| HGA100 | 90-99.9 | ≤8.0 | ≤12 | 100-200 | ≤2.2 | ≤1500 | 3-7 | ≤1.0 | ≥80 |
- Expanded graphite is derived from natural graphite. Its layered structure allows molecules to be intercalated between the graphite layers.
- Through the incorporation of acids (usually sulfuric acid), natural graphite can be converted into expandable graphite.
- When heated, the graphite flakes in expandable graphite expand significantly (up to a multiple of their original volume). The main products typically have a starting temperature in the range of 200°C.
- The expanded flakes take on a distinctive "worm-like" appearance and are generally several millimeters long.
Micronized Graphite
Specifications
| Item No. | Fixed Carbon(%)≮ | Ash Content(%)≯ | Moisture(%)≯ | Particle Size(μm) |
| HG-1 | - | 0.7 | 0.5 | 1≮60% |
| HG-2 | - | 0.7 | 0.5 | 2≮70% |
| HG-4 | - | 0.7 | 0.5 | 3≮80% |
| H-1 | - | 0.7 | 0.5 | 6≮60% |
| H-2 | - | 1.5 | 0.5 | 10≮60% |
| H-3 | 90 | - | 0.5 | 38≮95% |
| H-4 | 88 | - | 0.5 | 38≮95% |
| H-5 | - | 5 | 0.5 | 38≮95% |
| H-6 | - | 6 | 0.5 | 38≮95% |
| H-7 | - | 5 | 0.5 | 38≮95% |
| H-8 | - | 5 | 0.5 | 38≮95% |
| H-9 | - | 0.7 | 0.5 | 38≮95% |
Natural Flake Graphite
Micronized graphite (ultrafine graphite powder) is a dark gray, metallic and opaque fine flake-like solid.
Micronized graphite widely applied to electrical carbon products,lubrication material,chemical catalyzer,lead,power metallurgy release agent,and filler or improver for all types of composite materials such as rubber and plastics. It has uniform particles, special oxidation resistance under high temperature,sele-lubrication,plasticity,good conductivity of heat and electricity,and adhesiveness. lubricity, extrusion resistance, thermal shock resistance, corrosion resistance, and special high temperature resistance and is an important auxiliary filling material for the production of high-temperature grease and grease requiring high wear resistance.
Flake graphite is a natural crystalline form of graphite that resembles fish phosphorus. It belongs to the hexagonal crystal system and has a layered structure.
Properties:
- High Temperature Resistance: Graphite is one of the most high-temperature resistant materials available. It can withstand temperatures up to 3800 °C. Even under ultra-high temperature arcs, graphite experiences minimal weight loss. At 2000 °C, its strength can double.
- Electrical and Thermal Conductivity: Graphite exhibits exceptional conductivity—hundreds of times higher than general non-metallic materials. Its thermal conductivity surpasses that of steel, iron, lead, and other metals.
- Lubricity: The lubricating performance of graphite depends on the size of its flakes. Larger flakes result in a smaller friction coefficient, leading to better lubrication performance.
- Chemical Stability: At room temperature, graphite demonstrates good chemical stability. It can resist corrosion from acids, alkalis, and organic solvents.
- Plasticity: Graphite possesses excellent toughness and can be milled into very thin sheets.
- Thermal Shock Resistance: When used at high temperatures, graphite can withstand drastic temperature changes without damage. Its volume remains relatively stable, preventing cracks during abrupt temperature fluctuations.
Varieties: High-Purity Graphite, High-Carbon Graphite, Medium-Carbon Graphite
High Carbon Graphite
Specifications
| Item No. | Fixed Carbon (≥%) | Volatile constituent (≤%) | Moisture(≤%) | Residues after sieving (%) | Main Application |
| LG500-99.LG300-99 | 99 | 1 | 0.5 | ≥75.0 | Filler |
| LG180-99.LG150-99 | 99 | 1 | 0.5 | ≥75.0 | Filler |
| LG125-99.LG100-99 | 99 | 1 | 0.5 | ≥75.0 | Filler |
| LG(一)150-99 | 99 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)125-99 | 99 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)100-99 | 99 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| Item No. | Fixed Carbon (≥%) | Volatile constituent (≤%) | Moisture(≤%) | Residues after sieving (%) | Main Application |
| LG(一)75-99 | 99 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)45-99 | 99 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG500-98.LG300-98 | 98 | 1 | 0.5 | ≥75.0 | Lubricant,base material,coating |
| LG180-98.LG500-98 | 98 | 1 | 0.5 | ≥75.0 | Lubricant,base material,coating |
| LG125-98.LG100-98 | 98 | 1 | 0.5 | ≥75.0 | Lubricant,base material,coating |
| LG(一)150-98 | 98 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)125-98 | 98 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)100-98 | 98 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)75-98 | 98 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
| LG(一)45-98 | 98 | 1 | 0.5 | ≤20.0 | Lubricant,base material,coating |
Graphite, as a nonmetal mineral substance, exhibits the following physical and chemical properties: high temperature resistance, oxidation resistance, erosion resistance, heat resistance, shake resistance, high strength, high flexibility, high self-lubrication, and high heat and electricity conductivity. In the current high technology industry, graphite products manufactured by Tianhe find applications in various sectors, including metallurgy, machinery, electronics, batteries, chemical industry, light industry, military, national defense, astronavigation, and fire resistance.
High Purity Graphite
Specifications
Technical index of high purity graphite : (Index can be adjusted according to client requirement)
| Item No. | Fixed carbon(≥%) | Moisture(≤%) | Residues after sieving(%) | Main Application |
| LC50-99.9 | 99.9 | 0.2 | ≥80.0 | sealing material (sealant) |
| LC300-99.9 | 99.9 | 0.2 | ≥80.0 | sealing material (sealant) |
| LC180-99.9 | 99.9 | 0.2 | ≥80.0 | sealing material (sealant) |
| LC(一)150-99.9 | 99.9 | 0.2 | ≤20.0 | Lubricant base material |
| LC(一)75-99.9 | 99.9 | 0.2 | ≤20.0 | Lubricant base material |
| LC(一)45-99.9 | 99.9 | 0.2 | ≤20.0 | Lubricant base material |
| LC(一)150-99.99 | 99.99 | 0.2 | ≤20.0 | Lubricant base material |
Intermediate Carbon
1. High-Temperature Resistance:
- Graphite stands out as one of the most heat-resistant materials available. It can withstand temperatures up to 3800°C. Even under ultra-high-temperature arcs, graphite experiences minimal weight loss. At 2000°C, its strength can double.
2. Excellent Conductivity and Thermal Properties:
- Graphite exhibits conductivity levels 100 times higher than typical non-metals. Its thermal conductivity surpasses that of steel, iron, and lead. Interestingly, the thermal conductivity of graphite decreases with rising temperatures, and it remains insulating even at extremely high temperatures.
3. Self-Lubricating Ability:
- The lubricating performance of graphite depends on the size of its flake-like structure. Larger flakes result in lower friction coefficients, enhancing lubrication.
4. Chemical Stability:
- At room temperature, graphite demonstrates excellent chemical stability. It resists corrosion from acids, alkalis, and organic solvents.
5. Plasticity and Thinness:
- Graphite's remarkable toughness allows it to be rolled into thin sheets. These thin graphite layers have diverse applications.
High purity graphite has many excellent characteristics, including high strength, high density, high purity, high chemical stability, dense and uniform structure, high-temperature resistance, high conductivity, good wear resistance, self-lubrication, and easy processing. This product utilizes advanced production technology and sophisticated purification equipment to create high-purity graphite powder products with a carbon content ranging from 99.9% to 99.99%.
Intermediate Carbon Graphite: Essential Non-Metallic Material
Graphite, a non-metallic mineral, possesses unique physical and chemical properties that make it indispensable in various industries.
| Item No. | Fixed Carbon(≥%) | Volatile constituent(≤%) | Moisture(≤%) | Residues after sieving(%) |
| LG500-97.LG300-97 | 97 | 1.2 | 0.5 | ≥75.0 |
| LG180-97.LG150-97 | 97 | 1.2 | 0.5 | ≥75.0 |
| LG125-97.LG100-97 | 97 | 1.2 | 0.5 | ≥75.0 |
| LG(一)150-97 | 97 | 1.2 | 0.5 | ≤20.0 |
| LG(一)125-97 | 97 | 1.2 | 0.5 | ≤20.0 |
| LG(一)100-97 | 97 | 1.2 | 0.5 | ≤20.0 |
| LG(一)75-97 | 97 | 1.2 | 0.5 | ≤20.0 |
| LG(一)45-97 | 97 | 1.2 | 0.5 | ≤20.0 |
| LG500-96.LG300-96 | 96 | 1.2 | 0.5 | ≥75.0 |
| LG180-96.LG150-96 | 96 | 1.2 | 0.5 | ≥75.0 |
| LG125-96.LG100-96 | 96 | 1.2 | 0.5 | ≥75.0 |
| LG(一)150-96 | 96 | 1.2 | 0.5 | ≤20.0 |
| LG(一)125-96 | 96 | 1.2 | 0.5 | ≤20.0 |
Specifications
| Item No. | Fixed Carbon(≥%) | Volatile constituent(≤%) | Moisture(≤%) | Residues after sieving(%) |
| LG(一)100-96 | 96 | 1.2 | 0.5 | ≤20.0 |
| LG(一)75-96 | 96 | 1.2 | 0.5 | ≤20.0 |
| LG(一)45-96 | 96 | 1.2 | 0.5 | ≤20.0 |
| LG500-95.LG300-95 | 95 | 1.2 | 0.5 | ≥75.0 |
| LG180-95.LG150-95 | 95 | 1.2 | 0.5 | ≥75.0 |
| LG125-95.LG100-95 | 95 | 1.2 | 0.5 | ≥75.0 |
| LG(一)150-95 | 95 | 1.2 | 0.5 | ≤20.0 |
| LG(一)125-95 | 95 | 1.2 | 0.5 | ≤20.0 |
| LG(一)100-95 | 95 | 1.2 | 0.5 | ≤20.0 |
| LG(一)75-95 | 95 | 1.2 | 0.5 | ≤20.0 |
| LG(一)45-95 | 95 | 1.2 | 0.5 | ≤20.0 |
6. Resilience to Thermal Shock:
- When used at high temperatures, graphite withstands rapid temperature changes without fracturing. Its volume remains relatively stable during sudden temperature shifts, preventing cracks.
| Item No. | Fixed Carbon(≥%) | Volatile constituent(≤%) | Moisture(≤%) | Residues after sieving(%) |
| LG500-94.LG300-94 | 94 | 1.2 | 0.5 | ≥75.0 |
| LG180-94.LG150-94 | 94 | 1.2 | 0.5 | ≥75.0 |
| LG125-94.LG100-94 | 94 | 1.2 | 0.5 | ≥75.0 |
| LG(一)150-94 | 94 | 1.2 | 0.5 | ≤20.0 |
| LG(一)125-94 | 94 | 1.2 | 0.5 | ≤20.0 |
| LG(一)100-94 | 94 | 1.2 | 0.5 | ≤20.0 |
| LG(一)75-94 | 94 | 1.2 | 0.5 | ≤20.0 |
| LG(一)45-94 | 94 | 1.2 | 0.5 | ≤20.0 |
| LG500-93.LG300-93.LG180-93 | 93 | 1.5 | 1 | ≥75.0 |
| LG150-93.LG125-93.LG100-93 | 93 | 1.5 | 1 | ≥75.0 |
| LG(一)150-93. LG(一)125-93 | 93 | 1.5 | 1 | ≤20.0 |
| LG(一)100-93. LG(一)75-93 | 93 | 1.5 | 1 | ≤20.0 |
| LG(一)45-93 | 93 | 1.5 | 1 | ≤20.0 |
| LG500-92.LG300-92.LG180-92 | 92 | 1.5 | 1 | ≥75.0 |
| LG500-92.LG125-92.LG100-92 | 92 | 1.5 | 1 | ≥75.0 |
| LG(一)150-92.LG LG(一)125-92 | 92 | 1.5 | 1 | ≤20.0 |
| LG(一)100-92/ LG(一)75-92 | 92 | 1.5 | 1 | ≤20.0 |
| LG(一)45-92 | 92 | 1.5 | 1 | ≤20.0 |
| Item No. | Fixed Carbon(≥%) | Volatile constituent(≤%) | Moisture(≤%) | Residues after sieving(%) |
| LG500-91.LG300-91.LG180-91 | 91 | 1.5 | 1 | ≥75.0 |
| LG150-91.LG125-91.LG100-91 | 91 | 1.5 | 1 | ≥75.0 |
| LG(一)150-91. LG(一)125-91 | 91 | 1.5 | 1 | ≤20.0 |
| LG(一)100-91. LG(一)75-91 | 91 | 1.5 | 1 | ≤20.0 |
| LG(一)45-91 | 91 | 1.5 | 1 | ≤20.0 |
| LG500-90.LG300-90.LG180-90 | 90 | 2 | 1 | ≥75.0 |
| LG150-90.LG125-90.LG100-90 | 90 | 2 | 1 | ≥75.0 |
| LG(一)150-90. LG(一)125-90 | 90 | 2 | 1 | ≤20.0 |
| LG(一)100-90. LG(一)75-90 | 90 | 2 | 1 | ≤20.0 |
| Item No. | Fixed Carbon(≥%) | Volatile constituent(≤%) | Moisture(≤%) | Residues after sieving(%) |
| LG500-89.LG300-89.LG180-89 | 89 | 2 | 1 | ≥75.0 |
| LG150-89.LG125-89.LG100-89 | 89 | 2 | 1 | ≥75.0 |
| LG(一)150-89. LG(一)125-89 | 89 | 2 | 1 | ≤20.0 |
| LG(一)100-89. LG(一)75-89 | 89 | 2 | 1 | ≤20.0 |
| LG(一)45-89 | 89 | 2 | 1 | ≤20.0 |
| LG500-88.LG300-88.LG180-88 | 88 | 2 | 1 | ≥75.0 |
| LG150-88.LG125-88.LG100-88 | 88 | 2 | 1 | ≥75.0 |
| LG(一)150-88. LG(一)125-88 | 88 | 2 | 1 | ≤20.0 |
| LG(一)100-88. LG(一)75-88 | 88 | 2 | 1 | ≤20.0 |
| LG(一)45-88 | 88 | 2 | 1 | ≤20.0 |
| LG500-87.LG300-87.LG180-87 | 87 | 2.5 | 1 | ≥75.0 |
| LG150-87.LG125-87.LG100-87 | 87 | 2.5 | 1 | ≥75.0 |
| LG(一)150-87. LG(一)125-87 | 87 | 2.5 | 1 | ≤20.0 |
| LG(一)100-87. LG(一)75-87 | 87 | 2.5 | 1 | ≤20.0 |
| LG(一)45-87 | 87 | 2.5 | 1 | ≤20.0 |
| LG500-86.LG300-86.LG180-86 | 86 | 2.5 | 1 | ≥75.0 |
| LG150-86.LG125-86.LG100-86 | 86 | 2.5 | 1 | ≥75.0 |
| LG(一)150-86. LG(一)125-86 | 86 | 2.5 | 1 | ≤20.0 |
| LG(一)100-86. LG(一)75-86 | 86 | 2.5 | 1 | ≤20.0 |
| Item No. | Fixed Carbon(≥%) | Volatile constituent(≤%) | Moisture(≤%) | Residues after sieving(%) |
| LG(一)45-86 | 86 | 2.5 | 1 | ≤20.0 |
| LG500-85.LG300-85.LG180-85 | 85 | 2.5 | 1 | ≥75.0 |
| LG150-85.LG125-85.LG100-85 | 85 | 2.5 | 1 | ≥75.0 |
| LG(一)150-85. LG(一)125-85 | 85 | 2.5 | 1 | ≤20.0 |
| LG(一)100-85. LG(一)75-85 | 85 | 2.5 | 1 | ≤20.0 |
| LG(一)45-85 | 85 | 2.5 | 1 | ≤20.0 |
| LG500-83.LG300-83.LG180-83 | 83 | 3 | 1 | ≥75.0 |
| LG150-83.LG125-83.LG100-83 | 83 | 3 | 1 | ≥75.0 |
| LG(一)150-83. LG(一)125-83 | 83 | 3 | 1 | ≤20.0 |
| LG(一)100-83. LG(一)75-83 | 83 | 3 | 1 | ≤20.0 |
| LG(一)45-83 | 83 | 3 | 1 | ≤20.0 |
| LG500-80.LG300-80.LG180-80 | 80 | 3 | 1 | ≥75.0 |
| LG150-80.LG125-80.LG100-80 | 80 | 3 | 1 | ≥75.0 |
| LG(一)150-80. LG(一)125-80 | 80 | 3 | 1 | ≤20.0 |
| LG(一)100-80. LG(一)75-80 | 80 | 3 | 1 | ≤20.0 |
| LG(一)45-80 | 80 | 3 | 1 | ≤20.0 |
Spherical Graphite
Specifications
| Item | Tap Density (g/cm3) | Specific Surface Area (m2/g) | Particle size (d50) (μm) | Carbon content (%) | Moisture (%) | Charging Capacity (mAh/g) | Coulomb Efficiency (%) | Cycle Index |
| Index | 0.92-1.0 | 4-6.5 | 12-40 | 99.9-99.99 | <0.1 | >360 | >90 | ≥800 |
Synthetic Graphite
Spherical Graphite, derived from high-quality natural flake graphite, undergoes advanced spheroidization treatment to achieve unique properties.
1. Raw Material and Shaping Technology:
- Spherical Graphite is produced using flake graphite as the raw material.
- Unique shaping and grading technology narrows the particle size range and concentrates the flakes.
- Advanced screening and mixing techniques ensure product stability, uniformity, and consistency.
2. Product Performance:
- High Tap Density: Spherical Graphite exhibits excellent tap density.
- Round Surface and Good Sphericity: Its shape closely resembles a potato.
- Stable Quality: The particle size distribution is narrow, with a specific surface area (SSA) ranging from 2.4 to 2.8 m²/g.
3. Processing Process:
- Coarse crushing and trimming of graphite dry concentrate in the spherical graphite workshop.
- Additional processes, including magnetic separation.
- Purification in a separate workshop yields high-purity spherical graphite through high-temperature treatment.
Synthetic Graphite, also known as Artificial Graphite, plays a crucial role in various industries due to its exceptional properties.
1. Appearance:
- Synthetic Graphite exhibits a dark grey to black color, making it easily distinguishable.
2. Manufacturing Process:
- It is produced from calcined cokes that undergo extreme temperatures, reaching up to 3000°C.
- These high-temperature treatments result in materials with high purity, excellent lubrication properties, and electrical conductivity.
3. Broad Definition:
- All graphite materials obtained through organic carbonization and graphitization at elevated temperatures fall under the category of Synthetic Graphite.
- Examples include carbon fiber, pyrolytic carbon, and foam graphite.
4. Narrow Definition:
- In a more specific sense, Synthetic Graphite refers to bulk solid materials, such as:
- Graphite Electrodes: Used extensively in electric arc furnaces for steel production.
- Isostatic Graphite: Prepared by mixing, kneading, shaping, carbonization, and graphitization using low-impurity carbon as aggregate and coal tar pitch as a binder.
5. Key Advantages:
- Low Ash Content: Synthetic Graphite contains minimal ash, making it ideal for applications where impurities must be minimized.
- Excellent Conductivity: Its electrical conductivity surpasses many other materials.
- Thermal Conductivity: Synthetic Graphite efficiently transfers heat, making it valuable in various thermal applications.
Silicon Carbide (SiC)
Graphite Products
Graphite products are versatile parts with a wide range of applications in various industries due to its unique properties.
In addition to graphite mold series, Hifounder Graphite products mainly include the following series,
▷Graphite Molds
▷Graphite Mechanical Seals
▷Graphite Felt
▷Graphite Rods
▷Graphite Rope
▷Graphite Packing
▷Graphite Foil
▷Graphite Plates
▷Graphite Rotors & Shafts
▷Colloidal graphite
▷Graphite Blocks
Silicified graphite refers to a composite material composed of a silicon carbide layer coated on the surface of graphite material. The hardness of siliconized graphite is actually the hardness of SiC, which is second only to diamond, boron nitride, and boron carbide, and higher than the hardness of tungsten carbide, aluminum oxide, etc.
Silicified graphite can be used as bearings for phosphoric acid, phosphorus amine and hydrofluoric acid pumps. In addition, in the semiconductor industry, it is used as the substrate and fixture for silicon epitaxial growth of heating sheets and in the manufacture of artificial joints, artificial heart valves, artificial tooth roots, etc.
Colloidal Graphite
Hard composite (PAN) Carbon Felt
The main component of colloidal graphite is graphite (micronized graphite), which is in a milky state. It is mainly divided into: forging Colloidal graphite, drawing Colloidal graphite, and water-based Colloidal graphite.
Colloidal graphite has excellent high lubrication, high conductivity, high adsorption and catalytic properties, and extremely high plasticity.
Forging Colloidal graphite has good high-temperature lubricity, adhesion, easy demoulding, stable chemical properties, no corrosion, no toxicity, no environmental pollution, and easy to use.
Colloidal graphite can be used as electric carbon brush, rubber, plastic filler, anti-static, electromagnetic shielding, anti-corrosion coating, high temperature resistance, high temperature lubricant base material, powder metallurgy carbon raw material, wireless electronic industry carbon film resistor raw material, electrical contact point alloy , advanced metal alloy raw materials and used as lead-acid battery plates, lithium battery positive and negative conductive agents, nickel metal hydride nickel cadmium battery photosensitive cells, etc.
Hifounder Hard composite (PAN)Carbon felt is made by polymerizing graphite foil, polyacrylonitrile-based (PAN) carbon felt, and polyacrylonitrile-based carbon cloth into a special process, and then curing and shaping, followed by secondary high-temperature purification treatment.
It is characterized by ablation resistance, thermal shock resistance, air flow resistance and thermal insulation, and superior thermal insulation performance.
Hifounder Hard composite (PAN) Carbon felt are mainly used in vacuum metallurgical industrial furnace (high pressure gas crushing furnace, low pressure sintering furnace, pressurized vacuum sintering furnace).
Hard composite (PAN) Graphite Felt
Polyacrylonitrile(PAN) Based Carbon Felt
Hifounder Hard composite (PAN) Graphite felt is made by polymerizing graphite foil, polyacrylonitrile-based (PAN) graphite felt, and polyacrylonitrile-based carbon cloth into a special process, and then curing and shaping, followed by secondary high-temperature purification treatment.
It is characterized by high purity, high carbon content, ablation resistance, thermal shock resistance, air flow resistance and thermal insulation, and superior thermal insulation performance.
Hifounder Hard composite (PAN) Graphite felt are mainly used in ultra-high temperature vacuum and high pressure sintering furnace and electronics, semiconductor industry, solar photovoltaic (polysilicon, monocrystalline silicon casting furnace), vacuum industrial furnace equipment, etc.
Hifounder Polyacrylonitrile base (PAN) carbon fiber felt is made of polyacrylonitrile-based fiber through non-woven and needle punching processes, and is produced through pre-oxidation, carbonization and graphitization processes.
It is characterized by light weight, small specific heat capacity, soft texture, good thermal insulation performance and easy operation, mainly used in high-temperature vacuum furnaces that operate intermittently. It is an excellent high-temperature heat insulation material for vacuum metallurgical industrial furnace equipment and can save a lot of energy.
Hifounder Polyacrylonitrile base(PAN) carbon fiber felt is light in the quality ,small is specific heat capacity ,soft in texture,good in adiathermancy and convenient in operation,which can save great energy.Therefore,thermal insulaion of the polyacrylonitrile base is extremely superior in vacuum or inert atmosphere, in particular,performance of the polyacrylonitrile base is stable under high temperature condition,and it is the execllent thermal insulation material for Vacuum Furnace.
Polyacrylonitrile(PAN) Based Graphite Felt
Rayon Base Carbon Felt
Specifications
| ITEM | Technical Specifications |
| Material | Rayon Based Carbon Fiber Felt |
| Name: | Hifounder RCF Carbon Felt |
| Bulk density(g/cm3) | 0.10-0.12 |
| Carbon (%) | ≥98.5 |
| Thermal conductivity (1150° C) (W/m. k) | 0.08-0.15 |
| Tensile Strength(Mpa) | 0.13 |
| Crushing Stress at 5% Compression(N/cm2) | 6--10 |
| Ash (PPM) | ≤0.05 |
| Processing Temperature(° C) | 1200 |
| In the air (°C) | ≤400 |
| In the vaccum (°C) | ≥1500 |
| In the atmosphere (°C) | ≥1800 |
| Wide (mm) | 1000mm -15000mm |
| Thickness(mm) | 3mm. 5mm. 8mm. 10mm. 12mm. |
Hifounder Polyacrylonitrile base graphite fiber felt is formed by subjecting the high quality polyacrylonitrile base carbon fiber felt to pyrographite treatment.It is light in quality,good in flexibility,high in carbon content.high temperature resistant ,without volatilization under high temperature,corrosion resistant and small in heat conductivity coefficient and high in shape retention.It is fine heat insulation for polysilicon and monocrystalline silicon.
Due to its good high-temperature stability and long service life, Polyacrylonitrile base graphite fiber felt is widely used in high temperature industry such as single crystal growth furnaces, polycrystalline ingot furnaces, medium frequency induction high temperature furnaces and graphite resistance furnaces. It is also an excellent anti-corrosion filter material.
Hifounder Rayon-based carbon felt is made of viscose rayon as raw material. It is a high-temperature insulation material with excellent performance, such as Light weight, soft, high carbon content, high temperature resistance, non-volatile, and ablation resistance.
Mainly used in medium-frequency induction high-temperature sintering furnaces, Industrial production of ablation-resistant materials and strict thermal insulation materials for ultra-high temperature vacuum metallurgical equipment and other composite materials
It is also suitable for use as heating element materials for quartz heating tubes and felts for marking machines.
Rayon Base Graphite Felt
Specifications
| ITEM | Technical Specifications |
| Material | Rayon Based Graphite Fiber Felt |
| Name: | Hifounder RCF Graphite Felt |
| Bulk density(g/cm3) | 0.08-0.10 |
| Carbon (%) | ≥99 |
| Thermal conductivity (1150° C) (W/m. k) | 0.06-0.14 |
| Tensile Strength(Mpa) | 0.1 |
| Crushing Stress at 5% Compression(N/cm2) | 5--8 |
| Ash (PPM) | ≤0.005 |
| Processing Temperature(° C) | 2500 |
| In the air (°C) | ≤400 |
| In the vaccum (°C) | ≥2200 |
| In the atmosphere (°C) | ≥2500 |
| Wide (mm) | 1000mm -15000mm |
| Thickness(mm) | 3mm. 5mm. 8mm. 10mm. 12mm. |
Hifounder Rayon-based graphite felt is made of viscose fiber as the base material. It is formed after high-temperature treatment of pre-oxidation, carbonization and graphitization.
It has good shape retention, self-supporting properties, small specific gravity, no short fibers falling off, high surface finish, low thermal conductivity, high temperature resistance, good thermal shock resistance (no cracking or deformation for long-term use), long service life and easy to install and replace. The operating temperature can reach 3000°C. It is an ideal new heat insulation material for high-temperature vacuum equipment and high-temperature equipment in non-oxidizing atmosphere.
Hifounder graphite felt is resistant to ablation, has excellent thermal insulation perfprmance, and less slag. It mainly used photovoltaic enterprise furnace types such as monocrystalline silicon furnaces, polycrystalline silicon furnaces, silicon carbide recrystallization furnaces, vacuum high-pressure gas quenching furnaces, etc.
Graphite Block
Specifications
| Grade | HGB-1 | HGB-2 | HGB-3 | HGB-4 | HGB-5 | HGB-6 | HGB-7 | HGB-8 |
| Bulk density g/cm³ | 1.75 | 1.85 | 1.90 | 1.82 | 1.90 | 1.68 | 1.85 | 1.88 |
| Resistivity uΩm | 8~11 | 8~10 | 8~9 | 11~13 | 11~13 | 13~15 | 11~13 | 11~13 |
| Thermal conductivity（100℃）W/m.k | 110~120 | 130~140 | 130~140 | 110~120 | 110~120 | 80~100 | 100~120 | 110~120 |
| Thermal expansion coefficient（room temperature-600℃）10-16/℃ | 5.46 | 4.75 | 4.8 | 5.8 | 5.85 | 5.8 | 5.9 | 5.85 |
| Shore hardness HSD | 42 | 48 | 53 | 65 | 70 | 60 | 68 | 72 |
| Flexural strength Mpa | 38 | 46 | 55 | 51 | 60 | 38 | 62 | 70 |
| Compressive strength Mpa | 65 | 85 | 95 | 115 | 135 | 80 | 135 | 160 |
| Elastic Modulus Gpa | 9 | 11.8 | 12 | 12 | 13 | 8.8 | 12 | 13 |
| Porosity% | 17 | 13 | 11 | 12 | 11 | 18 | 12 | 11 |
| Ash PPM | 500 | 500 | 500 | 500 | 500 | 500 | 500 | 500 |
| Purified ash PPM | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Graininess um | 13~15 | 13~15 | 8~10 | 8~10 | 8~10 | 8~10 | 7 | 5 |
Graphite Block is a solid shape of graphite that is widely used in various industries. It can be made from artificial graphite, graphitized graphite electrode, or graphite powder isostatic pressing.
Graphite Blocks are known for their high purity, with a fixed carbon content greater than or equal to 99.9%. They are used for a variety of purposes such as flexible graphite sealing materials, and as a substitute for platinum crucible for melting chemical reagents. They also serve as a base for lubricants, high purity graphite block for silicon carbide furnace, graphite furnace, and other metallurgical furnaces.
In addition, they are used as furnace resistance furnace lining and conductive materials, as well as impermeable graphite heat exchanger. They are widely used in electronics, metallurgy, chemicals, steel, and other fields.
Graphite Foil
| Specification | Grade1 | Grade2 | Grade3 |
| Carbon content (%) | ≥ 99.9 | ≥ 99 | ≥ 99 |
| Tensile strength (mPa) | ≥ 4.5 | ≥ 4.5 | ≥ 4.0 |
| Sulfur content (ppm) | ≤ 300 | ≤ 800 | ≤ 1200 |
| Chlorine content (ppm) | ≤ 35 | ≤ 35 | ≤ 50 |
| Density tolerance (g/cm3) | ± 0.03 | ± 0.03 | ± 0.05 |
| Thickness tolerance (mm) | ≤ 1.5 ± 0.03 | >1.5 ±0.03 | >1.5 ±0.05 |
| Compression ratio (%) | 35-55 | 35-55 | 35-55 |
| Rebound rate (%) | ≥ 10 | ≥ 10 | ≥ 10 |
| Stress relaxation rate (%) | ≤ 10 | ≤ 10 | ≤ 10 |
| Heat loss450 ℃ | ≤ 0.5 | ≤ 1 | ≤ 1 |
| Heat loss600 ℃ | ≤ 15 | ≤ 20 | ≤ 20 |
Graphite Mechanical Seals
Graphite foil, a chemically treated high-carbon flake graphite, is rolled out at high temperatures. It serves as a fundamental material for manufacturing various graphite sealing components. Graphite foil is widely used in industries such as power, petroleum, chemicals, instrumentation, machinery, and diamond tools. It is ideal for both dynamic and static seals, replacing traditional materials like rubber, fluoroplastics, and asbestos. Additionally, within the realm of electronic products, a novel cooling solution has been introduced using natural graphite. This innovative approach employs Graphite foil for efficient heat dissipation. Offering high thermal efficiency, compact size, lightweight properties, and uniform heat conduction in both directions, Graphite foil enhances the performance of consumer electronic devices.
Graphite Mechanical Seals, also known as graphite gaskets, are thin yet robust seals designed to prevent leakage in joints. They are typically employed in applications that involve high heat and/or pressure. The longevity of these seals, coupled with their ability to create a reliable and effective seal in applications with high pressure and temperature fluctuations, makes them highly desirable.
These seals are indispensable in environments with aggressive chemicals, such as oil refineries and petrochemical plants, or where there are high temperatures, such as steam boilers. Their resilience and adaptability make them a preferred choice in these challenging conditions.
Graphite Packing
Graphite Plates
Hifounder Rayon-based carbon felt is made of viscose rayon as raw material. It is a high-temperature insulation material with excellent performance, such as Light weight, soft, high carbon content, high temperature resistance, non-volatile, and ablation resistance.
Mainly used in medium-frequency induction high-temperature sintering furnaces, Industrial production of ablation-resistant materials and strict thermal insulation materials for ultra-high temperature vacuum metallurgical equipment and other composite materials
It is also suitable for use as heating element materials for quartz heating tubes and felts for marking machines.
Graphite plates serve multiple purposes in various industries due to their unique properties. They are used as conductors, receiving energy from the electrodes. They guide the flow of hydrogen and oxygen through their respective ends of the stack, ensuring that the maximum amount of gases and moisture comes in contact with the membrane. In fuel cells, graphite is used as a conductive material for the bipolar plates. These plates must be pure and of high quality to improve electrical and thermal conductivity, as well as ensure long-life operation. They are also used as a conductive material for the bipolar plates in fuel cells. These plates need to be pure and of high quality to improve electrical and thermal conductivity, as well as ensure long-life operation.
Graphite plates are versatile materials with numerous applications in various industries. They are commonly used for structural ribs, components of kilns, and copper, zinc, and aluminum extrusion machines. They play a crucial role in cable manufacturing, carbide, electrodes, and plastic injection molding parts. They serve as lubricating and sealing plates, and are most widely used in bipolar fuel cell construction.
Graphite Rods
Graphite Ropes
Specifications
| Grade | HGP-GR |
| Density: g/cm3 | 1.74—1.79 |
| Carbon content: % | ≥99 |
| Thermal conductivity (W/m·k) | 0.10—0.14 |
| Resistivity:（Ωmm2/m） | 20—25 |
| Tensile strength:（MPa） | 450—500 |
| Elongation % | 1 |
| Ash: % | ≤1.0 |
| Process temperature ℃ | 2000 |
| Operation Temperature (Air ℃) | ≤400 |
| Operation Temperature (Vacuum ℃) | ≤2200 |
| Operation Temperature (Inert gas ℃) | ≤3200 |
| Standard size(mm) | Φ2，Φ3，Φ4，Φ6 x 200M |
Graphite rods, machined from blocks of graphite, are versatile and find use in a variety of industries and applications due to their special physical and chemical properties. For example, they are electrically and thermally conductive materials with high strength.
There are different types of graphite rods, such as JC3 and JC4. JC3 is a dense fine-grained rod that is machinable and rated to a high temperature (2400℃ Heat Treating). It’s properties allow for good electrical conductivity and typically used for electrochemical applications. JC4 is a strong fine-grained rod that is machinable and rated to a medium temperature (735℃ Heat Treating). It’s properties allow for good density and strength when higher temperatures are not required.
Different application areas have different requirements for graphite rods, so the material, processing technology, and technical specifications of graphite rods are different. The wide selection of sizes and grades allows you to choose the optimal Graphite Carbon Rods for your specific applications. Each of our products has been designed to meet specific needs and requirements.
Graphite rope, a type of packing or sealing material, is treated, and woven from Pan-based carbon fiber through a special process. It is known for its high strength, excellent thermal stability, resistance to corrosion and light in weight. It does not melt under high temperatures, making it a quality material for binding the thermal-protective coating of charcoal felt in vacuum furnaces.
Graphite rope is widely used in various fields including negative ion conductive electrodes, vacuum furnace insulation layers, carbon felt bundling, sewing, chemical industry, petroleum, food machinery, medical machinery, medical equipment, civil engineering, construction, electronic instruments and more. Specific applications include:
High-Temperature Sealing: Used for sealing applications in high-temperature environments, such as in furnaces, boilers, and industrial ovens.
Gasket and Packing: Used as a gasket material or packing in applications where a reliable seal is required, especially in conditions involving high temperatures and pressures.
Heat Exchangers: Used in heat exchangers and other thermal processing equipment due to its thermal conductivity and resistance to high temperatures.
Industrial Equipment: Finds applications in various industrial equipment where a durable and high-temperature-resistant sealing material is needed.
Graphite Rotors and Shafts
Graphite Crucible
Graphite Rotors and Shafts, also known as a degassing rotor, is a key component used in the metal casting industry, particularly in the casting of non-ferrous metals like aluminum and its alloys.
The primary function of a graphite rotor is to agitate the molten metal during the casting process. This agitation ensures a homogeneous mixture and helps in reducing the formation of defects in the final product. The process significantly improves the mechanical properties and surface finish of the cast components.
One of their primary uses is in the treatment of molten metal to remove impurities such as hydrogen and other gases. This process, known as degassing, involves the injection of inert gas through the graphite rotor into the molten metal, allowing the gases to escape. They allow for a more efficient kinetic mixing of metal and help decrease hydrogen and impurity levels in molten aluminum systems. This process significantly improves the quality of cast aluminum.
Graphite Crucible is a container used for melting and casting non-ferrous, non-iron metals such as gold, silver, aluminum, and brass. It's made from graphite, clay, silica, and wax stone.
The thermal conductivity, high temperature resistance, small thermal expansion coefficient for high temperature applications, and anti strain properties to rapid heating and cooling make graphite crucibles an ideal metal casting tool. They are resistant to the effects of acids and alkaline solutions and have excellent chemical stability.
Graphite crucibles do not contaminate molten metals because the graphite material is fused and does not loosen. The quality of a graphite crucible is determined by how it is manufactured, which influences its structure, density, porosity, and strength.
The non-reactive nature of graphite crucibles makes them ideal for use in the casting process. Their excellent heat performance helps in melting metals quickly for faster production cycles. Since graphite crucibles are resistant to chemicals and corrosion, they are not affected by workshop conditions, characteristics that make them durable and long lasting.
Semi-Continuous Casting
Horizontal Continuous Casting
Horizontal continuous casting is a casting method that uses a penetrating crystallizer to continuously pour liquid metal into one end and continuously pull out the molding material from the other end. Crystallizers in the non-ferrous metal smelting industry are generally made of graphite, etc., with hollow walls and cooling water flowing through the gaps to enhance its cooling effect. The cast molding materials include square, rectangular, round, flat, tubular or various special-shaped cross-sections.
Semi-continuous casting is a process that involves controlling the flow of molten metal and the entire casting procedure through a control system made up of various sensors during the production of castings.
The semi-continuous casting process has the advantage of fully utilizing the high efficiency and automation features of the continuous casting machine to enhance production efficiency and product quality. Additionally, by incorporating the traditional casting process in certain stages, it can achieve superior casting properties and surface quality.
Continuous Up Casting
Continuous up casting is a continuous casting method. Its principle is to use the cooling and crystallization mechanism of molten metal to slowly and continuously extract solid metal wires, plates, etc. with a certain shape from the molten metal or alloy molten.
The main feature of this method is that continuous wires or plates can be produced directly from molten metal or alloy melt without the need for casting, extrusion, drawing, rolling and other processing processes, which shortens the processing cycle and reduces the processing time. pollution and loss; It has large continuous production capacity and can even produce continuous wires and plates; Wires and plates with different outer diameters can be produced as needed.
At present, this method is widely used in the production of oxygen-free copper wire and steel.
Graphite Box
Graphite boxes are widely used in precision casting. They offer several advantages, including high-temperature resistance, precise machining accuracy, even temperature distribution, and easy demolding. These boxes find applications in various fields, particularly for casting precious metals like gold and silver.
■ Structural and surface analysis
Graphite’s polycrystalline and porous characteristics vary significantly, influenced by the raw materials and production techniques used. To tailor materials to your specific needs, a comprehensive understanding of diverse structures is essential. Hifounder Graphite employs a variety of precision instruments, including XRD, FE-SEM, and polarizing microscopes, to conduct detailed analyses across scales—from macroscopic to nanoscopic levels. This ensures the selection and development of materials that are perfectly aligned with your application requirements.
■ Element analysis
Graphite’s capability to achieve high purity levels makes it ideal for sensitive applications, like semiconductor manufacturing, where contamination must be minimized. Trace element analysis becomes a critical tool in such scenarios to ensure purity. Hifounder Graphite is equipped with advanced elemental analysis instruments, including ICP-OES and XRF, to meet the stringent purity requirements. Hifounder Graphite stand prepared to fulfill your analytical needs with precision.
■ Physical properties
Hifounder Graphite delivers comprehensive data on fundamental physical properties, including tensile strength, compressive strength, and flexural strength, along with the modulus of elasticity. These metrics are crucial for the informed design of components and materials, ensuring they meet the required performance standards.
■ 3D CAD drawings
Hifounder Graphite harnesses 3D CAD technology to generate precise three-dimensional product models, enhancing the quality of the final product through meticulous pre-processing shape verification. Additionally, we provide tailored design support using 3D CAD, working from the schematic diagrams and design specifications to ensure superior product development.
Research & Development Center
Hifounder Graphite has one of the North Chinese strongest expert and engineering teams in Graphite molds products. The R&D center maintains a full staff of over 10 engineers and CAD technicians, ranging from mold design and fabrication to production and quality control. With deep roots in engineering innovation, Hifounder Graphite's principals provide us with expertise and experience in the advancement of design and production.
Using a diverse range of analysis equipment to develop new materials and pursue research and development into material design and new applications,Hifounder Graphite respond to a wide range of customer requests, such as manufacturing process improvement, and also contribute to identifying and problem solving. Hifounder also continually strive to provide better products and more sophisticated technologies and services through analytical technologies.
■ Thermal analysis
Graphite is renowned for its exceptional thermal stability, making it a prime choice for high-temperature applications. Understanding its thermal behavior is crucial. Hifounder Graphite offers an extensive array of thermal analysis tools, such as TMA and TG-DTA, to provide tailored data for your specific conditions. Utilizing this data, we offer comprehensive services to assist in material selection, including:
Heat Stress Calculation: Estimating thermal stress to inform design decisions.
Finite Element Method (FEM) Analysis: Advanced modeling for precise component design.
Chemical Reaction Analysis: Evaluating changes due to thermal exposure.
Material Wear Assessment: Investigating degradation in oxidizing environments.
These services ensure optimal material performance and longevity in demanding thermal contexts.
Each of Hifounder's products has specific applications and functions based on the industry and the specific requirements of the application. For more detailed information or encountering any problems in using our products, it would be best to consult with Hifounder international service team to provide more specific
information based on your exact needs and requirements. If you have good comments or suggestions about our products, welcome to discuss with us. It would be our pleasure to serve you and solve your problems.
Hifounder Graphite
International Team
Hifounder Graphite is a comprehensive graphite material supplier integrating deep processing of graphite raw materials, R&D and production of graphite products. The graphite business under the group is mainly divided into deep processing of graphite raw materials, production, R&D and sales of graphite products and molds.
With more than 20 years of rich production and market experience, Hifounder Graphite's international business team mainly provides a variety of related services to overseas customers from 40 countries and regions, and has won the recognition and trust of our customers.
Applications
FDeep well underwater motor pumps
Pumps for oil refining and petrochemical processes
Pumps for power station processes
Pumps for general industries Chemical pumps
Marine pumps Flowmeter pumps
Household hot water circulation pumps
Vending machine circulation pumps
Dishwashers
Plywood dryer
Pumps for oil refining and petrochemical processes
Pumps for power station processes
Pumps for general industries Chemical pumps
Agitator Marine pumps
Automobile water pumps
Household hot water circulation pumps
Refrigerator compressors
Reciprocal compressors
Screw compressors
Steam turbines
Hydroelectric power generators
Various vacuum pumps
Air blowers
Flow meters
Oscillating compressors
Jet heaters
Papermaking dryers
Drum dryers
Mixing mills
Printers
■ Bearings
■ Joint Seals
■ Vanes
■ Packing
■ Seal rings
ASTM Standard Test Method,
Specification and Guide for Graphite
Related Products
----ASTM Volume 05.05, February 2024
| C1025-15(2020) | Standard Test Method for Modulus of Rupture in Bending of Electrode Graphite |
| C1039-85(2020)e1 | Standard Test Methods for Apparent Porosity, Apparent Specific Gravity, and Bulk Density of Graphite Electrodes |
| C1179-21 | Standard Test Method for Oxidation Mass Loss of Manufactured Carbon and Graphite Materials in Air |
| C559-16(2020) | Standard Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles |
| C560-20 | Standard Test Methods for Chemical Analysis of Graphite |
| C561-23 | Standard Test Method for Ash in a Graphite Sample |
| C562-23 | Standard Test Method for Moisture in a Graphite Sample |
| C565-15(2021) | Standard Test Methods for Tension Testing of Carbon and Graphite Mechanical Materials |
| C611-21 | Standard Test Method for Electrical Resistivity of Manufactured Carbon and Graphite Articles at Room Temperature |
| C625-15(2021) | Standard Practice for Reporting Irradiation Results on Graphite |
| C651-20 | Standard Test Method for Flexural Strength of Manufactured Carbon and Graphite Articles Using Four-Point Loading at Room Temperature |
| C662-16(2021) | Standard Specification for Impervious Graphite Pipe and Threading |
| C695-21 | Standard Test Method for Compressive Strength of Carbon and Graphite |
| C714-23 | Standard Guide for Thermal Diffusivity of Carbon and Graphite by Thermal Pulse Method |
| C747-23 | Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance |
| C748-20 | Standard Test Method for Rockwell Hardness of Graphite Materials |
| C749-15(2020) | Standard Test Method for Tensile Stress-Strain of Carbon and Graphite |
| C769-15 (2020)e1 | Standard Test Method for Sonic Velocity in Manufactured Carbon and Graphite Materials for Use in Obtaining an Approximate Value of Young's Modulus |
| C781-20 | Standard Practice for Testing Graphite Materials for Gas-Cooled Nuclear Reactor Components |
| C783-85(2020) | Standard Practice for Core Sampling of Graphite Electrodes |
| C808-75(2021) | Standard Guide for Reporting Friction and Wear Test Results of Manufactured Carbon and Graphite Bearing and Seal Materials |
| C816-15 (2020)e1 | Standard Test Method for Sulfur Content in Graphite by Combustion- Iodometric Titration Method |
| C838-16(2023) | Standard Test Method for Bulk Density of As-Manufactured Carbon and Graphite Shapes |
| C886-21 | Standard Test Method for Scleroscope Hardness Testing of Carbon and Graphite Materials |
| D7219-19 | Standard Specification for Isotropic and Near-isotropic Nuclear Graphites |
| D7301-21 | Standard Specification for Nuclear Graphite Suitable for Components Subjected to Low Neutron Irradiation Dose |
| D7542-21 | Standard Test Method for Air Oxidation of Carbon and Graphite in the Kinetic Regime |
| D7775-21 | Standard Guide for Measurements on Small Graphite Specimens |
| D7779-20 | Standard Test Method for Determination of Fracture Toughness of Graphite at Ambient Temperature |
| D7846-21 | Standard Practice for Reporting Uniaxial Strength Data and Estimating Weibull Distribution Parameters for Advanced Graphites |
--to be continued
| D7972-14(2020) | Standard Test Method for Flexural Strength of Manufactured Carbon and Graphite Articles Using Three-Point Loading at Room Temperature |
| D8075-16(2021) | Standard Guide for Categorization of Microstructural and Microtextural Features Observed in Optical Micrographs of Graphite |
| D8091-21 | Standard Guide for Impregnation of Graphite with Molten Salt |
| D8093-19 | Standard Guide for Nondestructive Evaluation of Nuclear Grade Graphite |
| D8186-18 | Standard Test Method for Measurement of Impurities in Graphite by Electrothermal Vaporization Inductively Coupled Plasma Optical Emission Spectrometry (ETV-ICP OES) |
| D8255-19 | Standard Guide for Work of Fracture Measurements on Small Nuclear Graphite Specimens |
| D8289-20 | Standard Test Method for Tensile Strength Estimate by Disc Compression of Manufactured Graphite |
| D8325-20 | Standard Guide for Evaluation of Nuclear Graphite Surface Area and Porosity by Gas Adsorption Measurements |
| D8356-20 | Standard Test Method for Sonic Velocity in Manufactured Carbons and Graphite Materials for use in Obtaining Approximate Elastic Constants: Young’s Modulus, Shear Modulus, and Poisson’s Ratio |
| D8377-21a | Standard Guide for High Temperature Strength Measurements of Graphite Impregnated with Molten Salt |
Chinese Standard Test Method for
Graphite Related Products
| GB/T 10698-2023 | Expansible graphite |
| GB/T 13465.1-2014 | Test method of impermeable graphite materials — Part 1: General of test method for mechanical properties |
| GB/T 13465.12-2023 | Test method of impermeable graphite materials—Part 12:Thermal conductivity |
| GB/T 13465.2-2014 | Test method of impermeable graphite materials — Part 2: Flexure strength |
| GB/T 13465.3-2014 | Test method of impermeable graphite materials — Part 3: Compressive strength |
| GB/T 13465.4-2014 | Test method of impermeable graphite materials — Part 4: Impact strength |
| GB/T 13465.6-2009 | Test method for hydraulic pressure bursting of impermeable graphite pipe |
| GB/T 15064-2008 | Test methods of colloidal graphite for kinescope |
| GB/T 19675.1-2023 | Reinforced flexible graphite gaskets for pipe flanges — Part 1: PN designated |
| GB/T 19675.2-2023 | Reinforced flexible graphite gaskets for pipe flanges — Part 2: Class designated |
| GB/T 21432-2021 | Graphite pressure vessels |
| GB/T 21921-2008 | Test method for tensile strength of impermeable graphite materials |
| GB/T 24210-2009 | Test method for the elastic modulus of whole graphite electrodes - Velocity of sound |
| GB/T 24533-2019 | Graphite negative electrode materials for lithium ion battery |
| GB/T 26279-2010 | Graphite crucible |
| GB/T 26961-2011 | Hydraulic pressure test method of graphite lined equipment |
--to be continued
| GB/T 29035-2022 | Test method for flexible graphite ring |
| GB/T 30071-2013 | High-density and fine-particle special graphite product |
| GB/T 3074.2-2008 | Method for the determination of the elastic modulus of graphite electrodes |
| GB/T 3074.3-2008 | Method for the determination of the oxidation resistance of graphite electrodes |
| GB/T 3074.4-2016 | Method for the determination of the coefficient of thermal expansion of graphite electrodes |
| GB/T 33920-2017 | Test method for flexible graphite sheets |
| GB/T 3518-2023 | Flake graphite |
| GB/T 3519-2023 | Cryptocrystalline graphite |
| GB/T 3520-2008 | Test method for fineness of graphite |
| GB/T 3521-2023 | Methods for chemical analysis of graphite |
| GB/T 35922-2018 | Technical specifications of impervious graphite to impermeable and corrosion |
| GB/T 35926-2018 | Operation technical specifications of impervious graphite to cement and anti-corrosion |
| GB/T 38887-2020 | Spherical graphite |
| GB/T 40408-2021 | Nuclear grade isostatic graphite for high temperature gas-cooled reactor internals |
| GB/T 41312.1-2022 | Test method for measurement of the permeability of chemical equipment — Part 1: Graphite and lining equipment |
| GB/T 42906-2023 | Graphite materials-Test method for equivalent boron contents-Inductively coupled plasma atomic emission spectrometry |
| GB/T 43891-2024 | Non-metallic chemical equipment—Test method for heat transfer coefficient and flow resistance performance of impervious graphite heat exchanger |
Note:
Qingdao Hifounder Graphite Co,.Ltd
ADD: No.6 huangshui Road, Nanshu Town,
Laixi,Qingdao, China,266613
TEL：+86 18805325126
EMAIL：info@hifounder.com
D.V. 31st
Hifounder
Est. 2003
增值电信业务经营许可证：陕B2-20210327 | 
陕公网安备 61102302611033号