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Hatch Cover Chains

Hatch cover chains are often used for rolling type hatch covers. The regular materials of hatch cover chains are 20Mn2 and 20MnV. The surface treatment is coating anti-rust oil after tumbling or hot galvanized. The chains also can be black painted. The most common dimension of hot-dip galvanized hatch cover chains is 11*43*12.5mm. In addition to the common dimension, we are able to supply other dimensions. It is available to customize chains according to your requirements. If you are interested in our products, welcome to contact us.
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Hatch Cover Chains
 
Hatch cover chains are often used for rolling type hatch covers. The regular materials of hatch cover chains are 20Mn2 and 20MnV. The surface treatment is coating anti-rust oil after tumbling or hot galvanized. The chains also can be black painted. The most common dimension of hot-dip galvanized hatch cover chains is 11*43*12.5mm. In addition to the common dimension, we are able to supply other dimensions. It is available to customize chains according to your requirements. If you are interested in our products, welcome to contact us.

Profile of Hatch Cover Chains

Chemical Composition of 20Mn2 and 20MnV

Steel grade

Chemical Composition %

C

Si

Mn

V

20Mn2

0.17~0.24

0.17~0.37

1.40~1.80

-

20MnV

0.17~0.24

0.17~0.37

1.30~1.60

0.07~0.12

Regular Dimensions of Hatch Cover Chains

Chain Diameter

mm

Inside Length

mm

Inside Width

mm

Testing Load

kn

Breaking Load

kn

Nominal Weight

kg/m

11

43

12.5

57

116

2.39

14(A)

50

17

97

194

3.95

14(B)

42

18

97

194

4.32

15

42

21

106

212

5.20

16(A)

48

22

128

254

5.34

16(B)

55

18

128

254

5.29

18(A)

54

24

161

322

7.12

18(B)

64

25

161

322

6.32

19

57

24

164

330

7.60

20(A)

60

22

129

359

9.50

20(B)

62

22

179

359

8.57

22(A)

78

31

240

480

9.86

22(B)

86

30

240

480

9.24

22(C)

66

31

240

480

10.6

30

108

35

399

798

18.22

Note

If you have any specific requirements, please contact us.

 

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hatch cover chains
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hatch cover chain
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