| Customization: | Available |
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| Feature: | Chemical Corrosion Resistance, Corrosion Resistance, Good Abrasion Resistance, Good Insulation Performance, Thermal Shock Resistance |
| Production Process: | Fusion Method |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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Corundum bricks refer to refractory products with alumina content greater than 90% and corundum as the main crystal phase. Very high room temperature compressive strength (up to 340MPa). High load softening starting temperature (greater than 1700ºC). Very good chemical stability, strong resistance to acidic or alkaline slag, metal and glass liquid. Thermal shock stability is related to its organizational structure. The erosion resistance of dense products is good, but the thermal shock stability is poor. It is divided into sintered corundum bricks and fused corundum bricks. It can be made by sintering method using sintered alumina and fused corundum as raw materials or alumina clinker with high Al2O3/SiO2 ratio and sintered alumina. Unburned corundum bricks can also be made with phosphoric acid or other binders. It is mainly used in iron-making blast furnaces and blast furnace hot blast furnaces, steel-making furnace refining furnaces, sliding water devices, glass melting furnaces and petrochemical industrial furnaces.
| Item | Corundum Brick 99 | Corundum Brick 90 | Mullite Corundum Brick |
| Al2O3 % | ≥99 | ≥90 | ≥80 |
| SiO2 % | ≤0.2 | ≤8 | ≤18 |
| Fe2O3 % | ≤0.2 | ≤0.2 | ≤0.3 |
| Bulk Density g/cm3 | ≥3.2 | ≥3 | ≥2.8 |
| Apparent porosity % | ≤19 | ≤18 | ≤18 |
| Cold compressive strength MPa |
≥100 | ≥100 | ≥100 |
| (0.2Mpa,0.6%)Load softening began to temperature °C |
≥1700 | ≥1700 | ≥1700 |
1:What's the MOQ of rder?
A:No limit,We can offer the best suggestions and solutions according to your condition.
Q2:Which payment terms can you accept?
A:T/T,L/C,Western Union,Moneygram,Paypal are available for us.
Q3:Is your company accept customization?
A:We have own factory and excellent technical team,and we accept OEM service.
Q4:How about your company's certification?
A:we can supplyISO9001 and Test Report,also we could apply other necessary certification.
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