Brand

Corundum

GP-70

GLP-80

GP-85

GP-90

Refractoriness ( ℃ )

≥1825

≥1850

≥1850

≥1850

Al 2 O 3 (%)

≥70

≥80

≥85

≥90

Bending Strength

(MPa)

110 ℃

After drying

≥2

≥2

≥2

≥2

℃ ×3h

After firing

1500

≥ 7

1500

≥ 7

1500

≥ 7

1500

≥ 7

Refractoriness Under Load T 2 ( ℃ )

≥ 1550

≥ 1650

≥ 1700

≥ 1700

Setting Time (min)

1 ~ 2