Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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55% Alumina Kiln Refractory Bricks Red Heat-proof and Thermal Shock Resistance Bricks
Competitive Advantages:
1 Competitive Price. Make the products competitive in your market.
2 Abundant Experience. Prevent cracks and twist in bricks.
3 Different Moulds. Save mould fees for you.
4 Strict Quality Control. Meet clients’ quality requirement.
5 Large stocks. Guarantee prompt delivery.
6 Professional Packing. Avoid damage and secure the goods in transportation
Applications:
1. Carbon bake furnaces in the aluminum industry
2. Preheat zones and cyclones of rotary cement kilns
3. Insulation for glass tanks
Technical data:
Item | AL-30 | AL-34 | AL-38 | AL-45 | AL-55 |
AL2O3 % (min) | 30 | 34 | 38 | 45 | 55 |
Fe2O3% (max) | 3 | 3 | 2.8 | 2.8 | 2.6 |
Refractoriness | 1670°C | 1710°C | 1750°C | 1770°C | 1770°C |
| Refractoriness under load, 0.2MPa, (°C) | 1250 | 1300 | 1350 | 1450 | 1470 |
Apparent porosity (%) | 22-26 | 22-26 | 20-24 | 20-22 | 20 |
Bulk density (g/cm³) | 1.9-2.1 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 | 2.2-2.35 |
Cold crushing strength (MPa) | 20 | 25 | 30 | 35 | 40 |
Thermal expansion at 1000°C (%) | 0.8 | 0.6 | 0.6 | 0.5 | 0.4 |
