Hatch Cover Chains

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 %
Steel grade	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.

Hatch Cover Chains

Welded Link Chains

Hatch Cover Chains

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Welded Link Chains

Hatch Cover Chains

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