Grade 70 chain is transport chain manufactured in heat-treated carbon steel.
As the name suggests, it's used as tie-downs on over-the-road trailers so it's also known as truckers chain. G70 chain is never to be used for overhead lifting. In addition to transport uses, it's also commonly used in towing, logging, oil rigs, and safety chain applications.
SPECIFICATIONS FOR G70 TRANSPORT CHAIN (NACM96) | ||||
SIZE (IN-MM) | WLL (LBS) | PITCH (MM) | INSIDE WIDTH (MM) | BREAKING FORCE (LBS/KN) |
1/4" | 3150 | 31.5 | 9.8 | 12600/56 |
5/16" | 4700 | 32.8 | 11.2 | 18800/83.6 |
3/8" | 6600 | 35 | 14 | 26400/117.4 |
7/16" | 8750 | 41.6 | 16.6 | 35000/155.4 |
1/2" | 11300 | 45.5 | 18.2 | 45200/200.8 |
5/8" | 15800 | 56 | 20 | 63200/280.8 |
3/4" | 24700 | 70 | 25 | 98800/439.2 |
