1) Lining of high-temperature kilns of industrial ceramics, industrial furnaces under 1650 of petrochemical, metallurgy and machinery industries
2) Lining of hot-surface of industrial furnaces as carbon furnace, cracking furnace, heating furnace for oil refining, roller kiln, tunnel kiln.
3) Back lining insulating layer of industrial furnace as glass tank kiln.
4) Deoxidizing atmosphere furnace.
Brand | SK-32 | SK-34 | SK-36 | HA-60 | HA-75 |
Al2O3(%) | ≥30 | ≥38 | ≥50 | ≥60 | ≥75 |
Fe2o3(%) | ≤3 | ≤2 | ≤1.5 | ≤1.5 | ≤1.2 |
Refractoriness | 1710 | 1750 | 1780 | 1790 | 1800 |
refractoriness under load 0.2mpa(°C) | 1300 | 1350 | 1450 | 1600 | 1650 |
Porosity(%) | 22 | 19-23 | 19-21 | ≤18 | ≤17 |
Bulk density(g/cm3) | ≥2.1 | ≥2.2 | ≥2.3 | ≥2.35 | ≥2.45 |
Cold cushing strength (mpa) | ≥25 | ≥30 | ≥50 | ≥70 | ≥80 |
Thermal expansion at 1000°C(%) | ≤0.6 | ≤0.6 | ≤0.3 | ≤0.6 | ≤0.6 |
