A-2 Air Hardening Tool Steel Blue Demon
A-2 Air Hardening Tool Steel produces weld deposits that are completely heat-treatable and have excellent resistance to high abrasion, medium impact, and wear. The deposits are also highly crack resistant and forgeable. Typical applications encountered are trim steels, piercing punches, flange, and forming dies as well as some draw form operations. This alloy is most widely used for general repair of the air hardening grades where a complete heat treat cycle will be used. Alloy Type Typical 5% Chromium Air Hardening Hardness as welded Rockwell C 58-62 Heat Treatment A-2 Procedure Welding Positions F,V,OH,H Shielding Gas Argon (recommended) Available Diameters SMAW – 3/32", 1/8", 5/32" & 3/16" GTAW – .030", .035", .045", 1/16" & 1/8"