내화도 (정도)
Common (1580°< Refractoriness< 1770°)
using life
more than 6000 hours
Modulus of rupture at room temp
500kg/cm2
Modulus of rupture at 1400C
550kg/cm2
Compressie strength
1300kg/cm2
Thermal expansion at 1000C
0.42-0.48%
Bulk density
2.70-2.75g/cm3