Chemical composition

化学组成，%

Al₂O₃      %

≥80

 Fe₂O₃       %

≤0.8

Cr₂O₃+Zr₂O₃

≥8

Apparent Porosity

显气孔率         %

≤16

Bulk Density

体积密度        g/cm³

≥3.12

Cold crushing strength

常温耐压强度     Mpa

≥130

Refractoriness Under load

0.2Mpa荷重软化温度     ℃

≥1700

Thermal Shock Resistance

抗热震稳定性（1100℃水冷）  次

25