... properties 3. Higher level of pr oil product description: Spring Wire use of materials for: 65Mn,82B,72A,72B wires, is ... : Line diameter 0.20 mm-6.50 mm.spring steel wire Product Detail Steel Gradehigh carbon steel StandardASTM,DIN,GBSizecustomer's ... customer's requirementOEM or notallowed oil hardening & tempering spring steel wire