Brands

Items

Main ditch furnace refractory castable

Indisputable ditch furnace castable

Dregs ditch furnace castable

iron runner

slag-line

sow channel

slag runner

Chemical composition % not less than

Al₂O₃

75

59

61

62

SiC

10.0

30.0

13.0

15.0

BD g/cm3       not less than

110℃×4h

2.92

2.79

2.42

2.55

1450℃×24h

2.88

2.75

2.4

2.4

CCS Mpa         not less than

110℃×24h

31.04

28.7

8.5

17

1450℃×24h

42.96

43.68

27

32

MOR Mpa          not less than

110℃×24h

4.75

4.36

-

-

1450℃×24h

5.71

5.91

-

-

PLC (1450℃×2h) %

±1.0

-0.10

﹢0.1

﹢0.3