Kaiyuan Refractories

A professional company produces and sales refractory materials for industry of cement, iron & steel ,non- ferrous metal and glass etc.
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Special Direct Bonded Magnesia Chrome Brick

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Product Description

The brick is made from high purity magnesia, chrome ore and compound high temperature flexibilizer. It is made by high pressure molding and high temperature sintering. It’s structure is dense and with excellent corrosion resistance and thermal shock resistance. 

Items


KYTMGe

Special Direct Bonded Magnesia Chrome Brick

20A

20B

18A

18B

16A

16B

MgO %                          ≥

55

50

58

53

60

55

Cr2O3 %                          ≥

20

20

18

18

16

16

F2O3  

10-13

6-12

6-12

6-12

6-12

6-12

SiO2 %                           ≤

1.5

2.5

1.5

2.5

1.5

2.5

Apparent porosity %       ≤

16

19

18

19

18

19

Bulk density g/cm3             ≥

3.28

3.18

3.18

3.15

3.15

3.12

Cold crushing strength Mpa ≥

50

35

40

35

40

35

0.2Mpa  R.U.L ℃T0.6 ≥

1700

1650

1700

1650

1700

1650

Thermal shock resistance 950℃ air-cycle ≥

80

60

80

60

80

60


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Zhengzhou Kaiyuan Refractories Co.,Ltd

 Plant add: Tancunwan village, Niudian town, Xinmi city, Henan, China
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 +86-13592427095 
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