Grade 80 Vs Grade 100 Chain

There are currently no official standards for grade 120 chain in the u s.

Grade 80 vs grade 100 chain. Chain grades for overhead lifting g80 g100 or g120. The links have a unique square shape and it has approximately 50 percent higher strength compared to grade 80. Safety standards for chain. The astm states that alloy chain shall be able to elongate a minimum of 20 before fracture.

Newer and stronger still is grade 120 chain. Grade 120 tie downs offer the highest strength available in the industry with 20 more strength than comparable grade 100 chain and up to 50 more strength than grade 80 chain. Currently alloy chain of grade 80 or grade 100 should be used for overhead lifting. Laclede alloy grade 80 100 chain and attachments are produced to exceed the rigorous requirements of overhead lifting.

Safe working load for 5 16 grade 70 3 8 grade 70 or 3 8 grade 80 chain pack of 4 4 8 out of 5 stars 123 6 off. When using fittings with chain you must match the trade size and meet or exceed the chain s grade. Lacled alloy chain and attachments offer a design strength and elongation surpassing the national association of chain manufacturers nacm specifications as shown in the following charts. Any lower grade chain should not be used.

Peerless ratchet style folding handle load binder with 2 grab hooks 7 100 lbs. High strength grade 100 chain for lifting this chain is approximately 25 stronger than grade 80 chain. This increase has given a significant ergonomic advantage to the grade 100. Considered premium quality by chain manufacturers it provides about 25 higher work load limits than grade 80 chain and is approved for overhead lifting applications.

For example a 3 8 grade 80 single leg chain sling has a capacity of 7 100 lbs where as a 3 8 grade 100 single leg chain sling has a capacity of 8 800 lbs. Grade 100 chain has roughly a 25 higher capacity rating when compared to a comparable size grade 80. It s heat treated and stamped with the grade and manufacturer.