Grade 70 Chain
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Grade 70 Chain
Grade 70 chain, also known as grade 70 transport chain, is manufactured in heat-treated carbon steel. The grade 70 chain is an improvement over high test chain and meets stringent Department of Transportation (DOT) regulations. Load ratings of grade 70 chain are approximately 20% higher than grade 43. Grade 70 chain is most popular in the cargo industry as trailer tie downs, but it¡¯s also used for logging, towing, and other jobs. It is noteworthy that the grade 70 chain should never be used for overhead lifting. The grade 70 transport chain generally features a gold chromate finish, which makes it easily identifiable. Besides, it is usually embossed with 7, 70, or 700.
In addition to standard chain, we are able to provide non-standard chains. Please call our sales team at +86-23-67868920 or send email to let us know what are you looking for, we¡¯ll be happy to help.
Features of Grade 70 Chain
• General: not used for lifting
• Materials: carbon steel
• Surface: chromate finish£¬black painted, galvanized
• Standard: to meet ASTM and NACM requirements
• Application: trailer tie downs, logging, safety, oil rigging...
Drawing of Grade 70 Chain
Specifications of Grade 70 Chain
|
Material Diameter |
Working Load Limit |
Proof Test |
Minimum Breaking Force |
Weight per 100 ft |
Maximum Inside Length |
Minimum Inside Width |
|||||||
|
inches |
mm |
kg |
lbs |
kn |
lbs |
kn |
lbs |
kg |
lbs |
mm |
inches |
mm |
inches |
|
1/4¡¯¡¯ |
7.10 |
1430 |
3150 |
27.80 |
6300 |
56.00 |
12600 |
34.0 |
75 |
21.80 |
0.86 |
11.40 |
0.45 |
|
5/16¡¯¡¯ |
8.70 |
2130 |
4700 |
41.80 |
9400 |
83.60 |
18800 |
50.40 |
111 |
25.60 |
1.01 |
11.70 |
0.46 |
|
3/8¡¯¡¯ |
10.30 |
2990 |
6600 |
58.70 |
13200 |
117.40 |
26400 |
71.00 |
156 |
30.20 |
1.19 |
14.00 |
0.55 |
|
Pictures of Grade 70 Chain |
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|
Grade 70 Chain (Chromate Finish) |
Grade 70 Chain (Black Painted) |
Grade 70 Chain (Galvanized) |
