Grade 80 Chain Specifications

Chain grades for overhead lifting g80 g100 or g120.

Grade 80 chain specifications.

G80 alloy chain is rugged versatile high strength low weight chain. Peerless grade 80 chain meets the latest guidelines of the national association of chain manufacturers nacm and astm a391 a391m. Determining chain working load limits. Currently alloy chain of grade 80 or grade 100 should be used for overhead lifting.

Grade 80 alloy chain. Crosby s 314a clevis sling hook w integrated latch crosby s 314a clevis sling hook w integrated latch crosby s 315a eye sling hook w integrated latch crosby s 315a eye sling hook w integrated latch. Quenched and tempered before proof testing grade 80 chain specs have tensile strength twice of ordinary steel chain. Laclede alloy grade 80 100 chain and attachments are produced to exceed the rigorous requirements of overhead lifting.

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. There are no minimum. The astm states that alloy chain shall be able to elongate a minimum of 20 before fracture. So grade 80 is really 800 and grade 120 is 1 200.

That number is the chain grade. You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade. Our selection includes full drums of grade 80 chain half drums of chain and cut grade 80 chain by the foot as well as tie down assemblies. Newer and stronger still is grade 120 chain.

It s tested throughout the manufacturing process and meets and exceeds the specifications of nacm astm and osha. Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.