Fabricated to ASME B30.9-2006, Bairstow Lifting Products Co., Inc. uses only Grade 100 alloy chain on all of our chain lifting slings up to ? (Grade 80 on 7/8 and above). Grade 100 Alloy Chain Slings have the strength and durability for the toughest of jobs, the highest temperatures and under harsh conditions that would destroy other types of lifting slings. Chain is flexible and durable and is easy to store. Alloy Chain Slings are available in many sizes and configurations from 9/32" to 1-1/4" and can be made with several different hooks. Call or email today for pricing and availability!