出生地 |
Henan China (Mainland) |
形状 |
Brick |
itemspecified valuerecheck allowable deviationRG-95Chemical composition,%SiO2≥951Al2O3≤1.0+0.1Fe2O3≤1.3+0.1Apparent porosity,%≤22(24)+0.5Show density,g/cm3≤2.32+0.01Compressive strength,MPa≥45(35)107Residual quartz,%≤1.0Load softening temperature(T0.6) oC≥165020creep rate 0.2MPa×1550 ×50h, %≤0.8Thermal expansion rate 1000,%≤1.25