Kerui fireclay bricks, which have alumina content less than 48%, are generally applied to heating environment with temperature maximal around 1400°C. Commonly in kiln lining, boiler, incinerator, dryers, oven, etc. Customized shaped bricks are available upon customer’s request.
1.Good resistance to corrosion and abrasion
2.Perfect thermal shock resistance
3.Good spalling resistance
4.High mechanical strength
5.Good volume stability under high temperature
It is mainly used for carbon furnace, baking furnace, heating boiler, glass furnace, cement kiln, fertilizer gasification furnace, blast furnace, the hot blast stove, coking furnace, furnace, casting and casting steel brick, etc.
230x114x65mm, special size and OEM service are provided, too.
Bisected Fire Clay Brick: 230x115x20mm
Trisected Fire Clay Brick: 230x115x30mm
Quartered Fire Clay Brick: 230x115x40mm
Physical and chemical index:
Item/Grade SK-30 SK-32 SK-34 SK-35 AL2O3% (≥) 30 35 38 45 Fe2O3% (≤) 2.5 2.5 2 2 Refractoriness(SK) 30 32 34 35 Refractoriness underload, 0.2MPa, °C (≥) 1250 1300 1360 1420 Apparent porosity (%) 22-26 20-24 20-22 18-20 Bulk density (g/cm³) 1.9-2.0 1.95-2.1 2.1-2.2 2.15-2.22 Cold crushing strength ,MPa (≥) 40 45 30 40