Kaiyuan Refractories

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Refractory cement CA 50

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Product Description

Refractory cement 

Items

CA50-G7

CA50-G8

CA50-G9

Refractoriness ℃

1420-1460

Chemical composition %

Al2O3 min

50

51

51

CaO min 

33

33

33.5

SiO2 max

8.0

7.0

6.5

Fe2O3 max

2.5

2.5

2.5

Na2O+K2O max

0.4

0.4

0.4

Specific density g/cm3

2.95-3.05

2.95-3.05

2.95-3.05

Specific surface area m2/kg min

300

350

400

Mortar performance




Initial setting time minutes min

30

60

90

Final setting time minutes max

360

360

360

Rupture strength Mpa


6 hr

-

-

-

24 hr

6.5

7.0

8.0

72 hr

7.5

9.0

10.0

Cold crushing strength Mpa


6 hr

-

-

-

24 hr

50

60

70

72 hr

60

70

80

Castable performance

Fireclay castable

Low cement castable

Fireclay castable

Low cement castable

Fireclay castable

Low cement castable

Water addition %

11

7

11

7

11

7

Flow value mm


Initial flow value

201

169

204

180

203

181

30 minutes

235

158

196

169

203

162

60 minutes

193

157

190

155

130

131

Cold crushing strength Mpa


24 hr room temperature

24

13

30

19

34

21

110℃ dry 24hr

61

49

63

56

65

75

1100℃ heating 6 hr

32

83

32

86

32

89


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Zhengzhou Kaiyuan Refractories Co.,Ltd

 Plant add: Yingbin street, Ludian,Dengfeng,Henan,China
  +86-371-53688552
   +86-371-53688078
 +86-13592427095 ( WhatsApp/Wechat )
  sales@kaiyuanref.com    
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