firebrick for building kiln
Negotiable /Twenty-Foot Container
Min.Order:1 Twenty-Foot Container
Zibo Yao Xing Fire-Resistant And Heat-Preservation Material Co., Ltd.
1.Character
l Great wear Resistance
l Great thermal conductivity
l Great resistance to impact
l Great slag resistance
2.Technology Index
Item | Fire Clay Brick | High Alumina Brick | ||
SK-32 | SK-34 | SK-36 | SK-38 | |
AL203%(≥) | 35 | 38 | 55 | 70 |
Fe2O3%(≥) | 2.5 | 2.0 | 2.0 | 2.0 |
Refractoriness (SK) | 32 1710°C | 34 1750°C | 36 1790°C | 38 1850°C |
Refractoriness under load, 0.2Mpa.°C (≥) | 1300 | 1350 | 1450 | 1550 |
Apparent Porosity (%) | 22-26 | 20-24 | 20-23 | 20-22 |
Bulk Density (g/cm3) | 1.95-2.1 | 2.1-2.2 | 2.25-2.4 | 2.4-2.6 |
Cold Crushing Strength,Mpa(≥) | 20 | 25 | 40 | 50 |
3.Application
Widely used in Building kiln and thermal equipment.