Fireclay Refractory Brick
Product Description
Fireclay refractory brick for industrial furnace
| Items | SK30 | SK32 | SK34 | SK35 |
| Al2O3,% ≥ | 30 | 32 | 38 | 45 |
| Fe2O3,%≤ | 2.5 | 2.5 | 2 | 2 |
| Refractoriness,SK | 30 | 32 | 34 | 35 |
| Refractoriness,ºC | 1670 | 1710 | 1750 | 1770 |
| Refractiriness under load,0.2Mpa | 1250 | 1350 | 1370 | 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 ≥ | 20 | 25 | 30 | 40 |