Refractory Raw Material Al2O3 42% Fire Clay Refractory Brick for Cement Kiln
Introduction:
Fire clay fire bricks are alumina silicate bricks contain 35-40% alumina. The bricks are made from various raw material s of fire clay, calcined chamotte, soft clay.
We manufacture bricks using thorough quality control. Shapes and properties depend unpon sevice conditions, becuase the bricks have low porosity, high strength, good resistance to thermal spalling and abrasion and to creep.
Fire clay brick is applied for the linings of various incinerators, reheating furnaces etc.
Technical Index:
| Item | Chamotte Brick for Carbon Furnace |
| N-1 | N-2a | N-2b | N-3a | N-3b | N-4 | N-5 | N-6 |
| Al2O3 % | ≥42 | ≥40 | ≥40 | ≥40 | ≥40 | ≥38 | -- | -- |
| Refractoriness ℃ | ≥1750 | ≥1730 | ≥1730 | ≥1710 | ≥1710 | ≥1690 | ≥1670 | ≥1580 |
| Refractoriness Under Load,℃,[0.2MPa×0.6%] | ≥1400 | ≥1350 | -- | ≥1320 | -- | ≥1300 | -- | -- |
| Permanent Linear Change, % | 1400℃×2h | +0.1 -0.4 | +0.1 -0.5 | +0.2 -0.5 | -- | -- | -- | -- | -- |
| 1350℃×2h | -- | -- | -- | +0.2 -0.5 | +0.2 -0.5 | +0.2 -0.5 | +0.2 -0.5 | -- |
| Apparent Porosity % | ≤22 | ≤26 | ≤24 | ≤24 | ≤26 | ≤24 | ≤26 | ≤28 |
| Cold Crushing Strength, MPa | ≥30.0 | ≥20.0 | ≥25.0 | ≥20.0 | ≥15.0 | ≥20.0 | ≥15.0 | ≥15.0 |
Manufacturing Process Flow:
Rough Materials-Mixing-Batching -Shaped-Drying-Sintering-Inspect-Packing-Delivery
FAQ:
1. Do you provide samples?
Standard size sample is free, but the air freight is collect or you pay us the cost in advance.
2. What’s your MOQ?
Normally we don’t have particular requirements on the MOQ. But we will charge the mold cost when the quantity of per shape is small.
3. What’s your warranty?
We are very confident in our products. Any quality issues, we will deal with it immediately.
