Al2O3,%

≥75

-

MgO,%

-

≥70

氣孔率/Apparent porosity,%

≤20

≤25

耐壓強度/Cold crushing strength (110℃×24H), MPa

≥30

≥30

耐壓強度/Cold crushing strength (1500℃×3H), MPa

≥60

≥40

線變化率/Linear change rate (1500℃×3H),%

±1

±1