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high purity 99 al2o3 alumina alumina ceramic crucible for melting
Characters of alumina ceramic crucible:
1. High purity: Al2O3>99%, high chemical etching resistance;
2. Temperature tolerance, at 1600C for long term application, and at 1800C for short term application
3. Resistant to sudden cold and hot, un-explosive
4. High density of slip casting, high purity alumina crucible, specifications of 99% corundum crucibles: 5ml 10ml 15ml 20ml 25ml 30ml 50ml 100ml 150ml 200ml- 2500ml.
technical parameter of alumina ceramic crucible:
Material | 85 Al2o3 | 90 Al2o3 | 95 Al2o3 | 99.7 Al2o3 |
Al2o3 | 85% | 90% | 93% | 99.30% |
Fe2o3 | ≤ 1.0 | ≤ 0.5 | ≤ 0.5 | ≤ 0.3 |
Desnsity: g / cm3 | 3.4 | 3.5 | 3.6 | 3.85 |
Vickers Hardness | ≥ 8.6 | ≥ 8.8 | 9 | 9 |
Water Absorption:% | ≤ 0.2 | ≤ 0.1 | ≤ 0.085 | ≤ 0.01 |
Refractoriness:°C | 1580 °C | 1600 °C | 1650 °C | 1800°C |
Flexural Strength:Mpa | 180 | 200 | 240 | 280 |
Wear Rate( at room temperature, erosion, 100 grinding)% | ≤ 3 | ≤ 2.5 | ≤ 1 | ≤ 0.5 |
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Why HT:
1. control the cost easiler.
2. more support in technique problem.
3.Our products are complete in specifications with various of sizes.
4.We enjoy a good reputation in the customers in domestic and overseas markets.
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