Brand Properties | DN-12 | DN-14 | DN-17 | SK-34 | SK-33 | SK-32 | |||||||
Refractoriness (SK) | 35 | 34 | 34 | 34 | 33 | 32 | |||||||
Apparent Porosity (%) | 12 | 14 | 17 | 23 | 24 | 26 | |||||||
Bulk Density (g/cm3) | 2.40 | 2.34 | 2.25 | 2.20 | 2.15 | 2.00 | |||||||
Cold Crushing Strength (MPa) | 70 | 65 | 50 | 35 | 30 | 20 | |||||||
Thermal Linear Expansion(%) @ 1,000℃ | 0.5 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |||||||
Permanent Linear Change (%) @ 1,400℃ x 2hrs | ±0.1 | ±0.2 | ±0.2 | ±0.3 | ±0.5 | ±0.5 | |||||||
Refractoriness under Load (℃) @0.2MPa | 1,500 | 1,470 | 1,430 | 1,350 | 1,300 | 1,250 | |||||||
Chemical Composition (%) | Al2O3 | 45 | 45 | 42 | 40 | 38 | 35 | ||||||
Fe2O3 | 1.3 | 1.5 | 1.7 | 2.0 | 2.2 | 3.0 | |||||||
Main Applications | - Reheating Furnace - Blast furnace -Coke Oven,Torpedo Car, -Cement Rotary kiln, Various Rotary kiln, -Chemical Reactor, incinerator, Non Ferrous, metal Furnace, -Glass furnace -General Industrial Furnace etc. |