Our Durable Carbon Bonded Silicon Carbide Graphite Crucibles are precision-engineered for high-performance melting of non-ferrous metals including copper, brass, gold, silver, zinc, and lead. Manufactured from high-purity graphite, clay, and silica, these crucibles are designed to withstand extreme thermal environments while maintaining structural integrity and purity for precious metal casting.
Specifically optimized for the jewelry and metallurgy industries, our graphite crucibles offer exceptional ablation resistance and high density. Whether operating in a protective atmosphere at temperatures exceeding 2000°C or in standard industrial furnaces, these crucibles provide the reliability needed for sintering hard metals, analysis of special steels, and noble metal smelting.
| Refractoriness | > 2000 ºC | Flexural Strength | 38-60 MPa |
|---|---|---|---|
| Compressive Strength | 65-135 MPa | Density | 1.78-1.85 g/cm3 |
| Carbon Content | High-Carbon | Shape | Cylindrical (Customizable) |
| Production Capacity | 3000 Tons/Month | Origin | China |
| Packaging | Wooden Cases (Plywood) | Diameter | Customized to order |
Capable of withstanding temperatures over 2000°C in protective atmospheres, ensuring stability in extreme heat.
High-density graphite construction ensures superior ablation resistance and a longer operational lifespan.
Strong thermal conductivity allows for faster heating and more efficient energy consumption during melting.
Excellent resistance to chemical corrosion from molten non-ferrous alloys, preventing contamination.
Low ash content and high carbon purity make it ideal for noble metals like gold, silver, and platinum.
Available in various diameters and shapes to meet the specific requirements of your industrial process.
Operated from our 18,000m² workshop with 100+ skilled employees for consistent quality.
Utilizing the most advanced graphite processing machinery for precise customization.
Rigorous testing of density and strength to ensure each crucible meets industrial standards.
Professional design services to adapt crucible dimensions to your specific furnace layout.
Experienced in FOB, CFR, and CIF shipping with secure plywood packaging for long-distance transit.
Monthly production of 3,000 tons ensures we can meet both small orders and large-scale industrial needs.
| Comparison Metric | Standard Clay Crucible | Our Graphite Crucible |
|---|---|---|
| Temperature Limit | Moderate | Ultra-High (>2000°C) |
| Thermal Conductivity | Low | Excellent |
| Service Life | Short (Fragile) | Long (Durable) |
| Heating Efficiency | Slow | Rapid |
| Purity Maintenance | Risk of contamination | High Purity / Low Ash |
These crucibles are ideal for non-ferrous metals such as copper, brass, gold, silver, zinc, lead, and their respective alloys.
In an oxygen atmosphere, oxidation begins at 700-800°C. However, in a protective atmosphere, the crucible can withstand temperatures exceeding 2000°C.
Yes, we provide full customization services for diameter, height, and shape based on your specific technical requirements.
The minimum order quantity for our graphite products is generally 1 ton.
The delivery time is typically 2-3 weeks after we receive the deposit.
We use high-strength wooden cases (plywood) to ensure the products are protected from impact during transit.
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