China Sk30 Sk32 Sk34 Sk35 Fireproof Chamotte Insulating Refractory Bricks for Cement Kilns, Find details about China Flint Clay, Calcined Fire Clay from Sk30 Sk32 Sk34 Sk35 Fireproof Chamotte Insulating Refractory Bricks for Cement Kilns
Brand Properties | SK-40 | SK-38 | SK-37 | SK-36 | SK-35 | |
Refractoriness (SK) | 40 | 38 | 37 | 36 | 35 | |
Apparent Porosity (%) | 22 | 23 | 23 | 23 | 23 | |
Bulk Density (g/cm3) | 2.65 | 2.40 | 2.35 | 2.30 | 2.25 | |
Cold Crushing Strength(MPa) | 70 | 52 | 50 | 45 | 40 | |
Thermal Linear Expansion(%) @1000deg | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
Permanent Linear Change(%) @1400degx2hrs | ±0.2 | ±0.3 | ±0.3 | ±0.3 | ±0.3 | |
Refractoriness under Load (ºC) @0.2MPa | 1,530 | 1,500 | 1,450 | 1,420 | 1,380 | |
Chemical Composition(%) | Al2O3 | 80 | 72 | 60 | 50 | 45 |
Fe2O3 | 1.8 | 2.0 | 2.0 | 2.0 | 2.0 |