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performance
Item Type
used in air separation process used in coal gas heating furnace
Al2o3（%） 20-30 60-65
Al2O3+ SiO2（%） ≥90 ≥90
Fe2O3（%） ≤1 ≤1.5
Size（mm） 10-12/12-14 16-18/20-25
Specific heat(J/kg.k) ≥836 ≥1000
Thermal Coefficient(w/m.k) 2.6-2.9 2.7-2.9
Temperature urgent change resistance（℃） 800 1000
Fire resistance（℃） 1550 1750
Wearing rate（%） ≤0.1 ≤0.1
Grade Mohs Hardness ≥6.5 ≥6.5
Compressive strength(N/Grain) 800-1200 1800-3200
Heaping Weight(kg/m3) 1300-1400 1500-1600
★We can product catalytic combustion ceramic board follow customer’s request.
Heat storage ceramic ball