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Product introduction of high alumina checker bricks
High alumina seven hole checker brick for hot blast furnace is a kind of heat carrier, which has many superior thermal characteristics such as strong heat exchange capacity, large heat storage area, smooth ventilation, small resistance, etc., and is widely recognized and accepted by the world iron making industry. According to your needs, Carey can customize and produce checker bricks with different material proportions and brick types.
Advantages of high alumina checker bricks
- Good volumetric stability
- Excellent high temperature load creep performance
- High density and low porosity
Parameters of high alumina checker bricks
| Item | RL-65 | RL-55 | RL-48 |
| Al2O3, %, ≥ | 65 | 55 | 48 |
| Refractoriness, ℃ , ≥ | 1780 | 1760 | 1740 |
| Refractoriness Under Load of 0.2MPa, ℃ , ≥ | 1500 | 1470 | 1420 |
| Linear Change after Reheating, %, 1500℃x2h | 0.1~-0.4 | 0.1~-0.4 | 0.1~-0.4 |
| Apparent Porosity, %, ≤ | 23 | 22 | 22 |
| Cold Crushing Strength, MPa, ≥ | 50 | 45 | 40 |
Why choose us
- Real products, real prices
We are a true refractory manufacturer, and we promise that all refractory products we sell are subject to ex factory price and quality control. - Technical support
Good refractory materials need good construction support. We have 7 construction teams, 20 kiln engineers, and full-time construction experience in 129 kinds of kilns. Whether you buy our products or not, we will provide you with reasonable and efficient technical support and construction services.