Kaiyuan Refractories

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Refractory castable for ladle

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Product Description

Castable for ladle 

Items

GBJ-90

GBJ-85

GBJ-80

GBJ-75

Chemical composition %

AL2O3

90

85

80

75

MgO

3-5

6-8

8-10

8-10

Bulk density g/cm3


110℃×24h

3.15

3.0

2.90

2.85

1000℃×3h

3.1

3.0

2.90

2.85

1550℃3h

3.0

2.95

2.8

2.8


Permanent linear change %

110℃×24h

0~-1

0~-0.1

0~-0.1

0~-0.1

1000℃×3h

-0.1~+0.1

-0.1~+0.1

-0.1~+0.1

-0.1~+0.1

1550℃3h

0~+0.5

0~+0.5

0~+0.5

0~+0.5

CCS Mpa


 

110℃×24h

35

30

45

40

1000℃×3h

45

40

60

55

1550℃3h

85

80

60

551.5

MOR Mpa ≥


110℃×24h

5.0

4.0

7.0

6.0

1000℃×3h

6.0

6.0

6.0

5.5

1550℃3h

8.0

8.0

9.0

8.0


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Zhengzhou Kaiyuan Refractories Co.,Ltd

 Plant add: Tancunwan village, Niudian town, Xinmi city, Henan, China
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