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Isostatic Pressing Graphite High Purity Carbon Graphite Block of Good Price
- Overview
- Product Description
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- Product Parameters
- Application
- Company Profile
- Certifications
- FAQ
Graphite block is made of domestic petroleum coke, with carbon content above 99%. We have vibrated,molded and isotropic graphite block. They are widely used in such fields as mechanical , electronics, chemical industry and other new industries.
We can machine to specific shapes according to customers' requirements.
1, high temperature resistance:
2, special thermal shock resistance
3, thermal conductivity and electrical conductivity
4. Lubricity
5. Chemical stability
| tem | Unit | Material 1 | Material 2 |
| Max Grain size | mm | 0.8 | 0.8 |
| Bulk Density | g/cm³ | ≥1.70 | ≥1.73 |
| Electric Resistance | μΩ.m | ≤8.5 | ≤8 |
| Bending Strength | MPa | ≥10 | ≥12 |
| Compressive Strength | MPa | ≥24 | ≥31 |
| Thermal Conductivity | W/(m.K) | ≥120 | ≥130 |
| C.T.E(100-600)ºC | 10-6/ºC | ≤2.5 | ≤2.5 |
Shijiazhuang Nalai Biotechnology Co., Ltd
1. Specialized in making graphite products.
2. Main products: graphite block, graphite plate, graphite rod, graphite tube, graphite mold, graphite crucible, graphite rotor&shaft, graphite sealing, graphite felt, carbon vane, etc.
3. In addition to product manufacturing, we also provide customized services.
We look forward to establishing long-term and stable cooperative relations with more customers and creating a better future together!
What Is a High Purity Graphite Block and Why It Matters
A high purity graphite block is a specially processed carbon material with extremely low impurity content, typically above 99.9% carbon purity. Through advanced purification processes such as high-temperature treatment and chemical refinement, unwanted metallic and non-carbon elements are removed to ensure stable performance in demanding industrial environments.
The importance of high purity lies in performance stability. Even trace impurities can affect electrical conductivity, thermal resistance, and chemical compatibility. For industries such as semiconductor manufacturing, EDM (electrical discharge machining), vacuum furnaces, and photovoltaic production, a high purity graphite block ensures consistent results and reduces contamination risks.
Compared with standard carbon graphite block materials, high purity grades offer better oxidation resistance, improved thermal conductivity, and enhanced mechanical reliability. This makes them ideal for high-temperature and precision applications.
When searching for a graphite block for sale, buyers should pay close attention to purity level, density, grain size, and processing method. Selecting the right material grade directly impacts production efficiency and product lifespan. A reliable supplier will provide detailed technical specifications and quality control documentation to guarantee consistent material performance.
Major Industrial Applications for Carbon Graphite Block
A carbon graphite block is widely used across multiple industries due to its exceptional thermal stability, machinability, and electrical conductivity. Its versatility makes it one of the most important engineered carbon materials in industrial manufacturing.
In metallurgy, carbon graphite blocks are commonly used in furnace linings, casting molds, and continuous casting applications because of their ability to withstand extreme temperatures without deformation. In the semiconductor industry, high precision high purity graphite block materials are used in wafer processing equipment, vacuum furnace components, and crystal growth systems.
Electrical discharge machining (EDM) is another major application area. The consistent grain structure of a high-quality carbon graphite block ensures precise electrode performance, resulting in smoother surface finishes and improved machining accuracy.
Energy industries also rely on graphite materials for solar cell production, battery components, and fuel cell systems. When companies look for a graphite block for sale, they often prioritize high density and isotropic structure to ensure uniform performance under stress.
The broad industrial adoption of graphite blocks reflects their balance of mechanical strength, lightweight structure, and resistance to thermal shock, making them essential in modern manufacturing environments.
Comparing Isostatic vs Molded Carbon Graphite Blocks
When selecting a carbon graphite block, understanding the manufacturing method is essential. Two of the most common production processes are isostatic pressing and molded (vibration or compression molded) forming.
Isostatic graphite is produced using high-pressure uniform compression from all directions. This method results in a highly isotropic structure, meaning the material properties are consistent in every direction. A high purity graphite block manufactured through isostatic pressing typically offers finer grain size, higher density, and superior mechanical strength. It is ideal for high-precision applications such as semiconductor components and advanced EDM electrodes.
Molded graphite blocks, on the other hand, are produced using unidirectional pressure. While they may not achieve the same uniformity as isostatic materials, molded carbon graphite block products provide excellent cost-performance balance. They are widely used in general industrial furnaces, casting molds, and structural applications.
When evaluating a graphite block for sale, buyers should compare factors such as density, flexural strength, thermal conductivity, and price. Isostatic graphite is generally more suitable for demanding technical applications, while molded graphite offers a more economical option for large-volume industrial use.
Understanding these differences helps buyers choose the right graphite material for their specific operational needs.
