Name

Castable With Steel Fibers

Alkali-resistance Castable

Ordinary

High-strength

Ordinary

High-strength

Al 2 O 3 (%) ，

≥ 78

≥ 92

≤ 48

≤ 48

SiO 2 (%) ,

≤ 15

≤ 4

≥ 50

≥ 50

Bulk density (g/cm 3 ) ,

≥ 2.65

≥ 3.00

2.2 ~ 2.4

2.2 ~ 2.4

Cold crushing strength (MPa), ≥

110℃×24h

100

100

40

80

1100℃×3h

100

100

30

80

1500℃×3h

/

100

/

/

Modulus of

Rupture

(mpa), ≥

110℃×24h

11

14

5

8

1100℃×3h

11

14

4

8

1500℃×3h

/

15

/

/

Thermal expansion (%)

1100℃×3h

0.1 ~ -0.3

0.1 ~ -0.3

0.1 ~ -0.5

0.1 ~ -0.5

1500℃×3h

/

0.2 ~ -0.5

/

/

Alkali-resistance (grade)

/

/

1 ~ 2

1 ~ 2

Forming method

Vibration

Vibration

Vibration

Vibration

Max. service temperature ( ℃ )

1500

1650

1300

1300