- Englist
High Density Unmachined Graphite Block China Factory and Suppliers
Our High Density Unmachined Graphite Blocks are engineered for extreme industrial environments, specifically designed for casting sand turning and compression molds. Manufactured from premium domestic petroleum coke with a carbon content exceeding 99%, these blocks offer an exceptional balance of structural integrity and thermal performance, making them indispensable for high-precision manufacturing.
Available in vibrated, molded, and isostatic graphite variations, our products are tailored to meet the rigorous demands of the mechanical, electronic, and chemical industries. With the capability to withstand temperatures over 3000 degrees and a high resistance to thermal shock, these graphite blocks provide a reliable, long-term solution for semiconductor applications, solar technology, and EDM processes.
Detailed Parameters
| Bulk Density | 1.85g/cm³ - 1.88g/cm³ | Carbon Content | Above 99% |
|---|---|---|---|
| Electric Resistance | ≤ 8.0 - 8.5 μΩ.m | Bending Strength | ≥ 10 - 12 MPa |
| Compressive Strength | ≥ 24 - 31 MPa | Thermal Conductivity | ≥ 120 - 130 W/(m.K) |
| C.T.E (100-600°C) | ≤ 2.5 × 10⁻⁶/°C | Ash Content | ≤ 0.3% |
| Max Grain Size | 0.8 mm | Production Capacity | 3000 Tons/Month |
Key Advantages
High Thermal Stability
Capable of withstanding temperatures over 3000°C with exceptional resistance to thermal shock and low thermal expansion.
Superior Conductivity
Optimized for both high electrical and thermal conductivity to ensure efficient energy transfer in industrial processes.
Extreme Durability
High mechanical strength and hardness ensure the block maintains its shape and precision under heavy compression.
Chemical Inertness
Stable chemical properties make it highly resistant to oxidation and unlikely to react with other industrial materials.
Homogeneous Structure
Isostatic graphite processing ensures a uniform internal structure for consistent performance across the entire block.
Custom Machinability
Easy to process into specific shapes and dimensions according to precise customer technical requirements.
Product Gallery
Management Platforms
Customization Service
Professional machining services to convert raw blocks into specific shapes per customer blueprints.
Quality Control
Rigorous testing of density, conductivity, and strength to ensure industrial grade compliance.
Supply Chain Stability
Monthly capacity of 3000 tons ensuring consistent delivery for large-scale industrial projects.
Material Sourcing
Utilization of high-purity domestic petroleum coke for maximum carbon content and purity.
Specialized Packing
Secure wooden box packaging designed to prevent damage during long-distance international transit.
Diverse Application Support
Expert guidance for EDM, semiconductor, and solar technology graphite integrations.
Investment Return Comparison
| Performance Metric | Standard Graphite | NALAI High Density Block |
|---|---|---|
| Max Temp Resistance | ~2000°C | Over 3000°C |
| Thermal Shock Resistance | Moderate | Excellent |
| Machining Accuracy | Standard | High Precision |
| Service Life Cycle | Medium | Extended (High Wear Resistance) |
| Oxidation Resistance | Basic | Superior |
Frequently Asked Questions
They are widely used in diamond tool pressure sintering, die molds, continuous casting dies for non-ferrous metals (Al, Cu, Brass), degassing rods, and semiconductor or solar technology applications.
Yes, we provide professional customization services. We can machine the unmachined blocks into specific shapes and sizes according to your precise technical requirements.
Isostatic graphite is produced using uniform pressure from all directions, resulting in a more homogeneous structure and consistent physical properties compared to standard molded graphite.
A higher carbon content (above 99%) ensures better electrical conductivity, higher thermal stability, and improved resistance to chemical reactions in high-temperature environments.
Our high-density graphite blocks are engineered to withstand temperatures exceeding 3000 degrees Celsius, making them ideal for extreme heat industrial applications.
To ensure the safety and integrity of the product, all graphite blocks are securely packed in reinforced wooden boxes for transport.
Ready to Optimize Your Casting and Molding Process?
Contact Us
