Lincoln Magnum PRO 450 Dual Schedule Welding Guns K3134 4 Wire Guide Assemblies stainless steels and cast iron 9SL5220 4 stainless steels and cast iron to be used at temperatures up to 704°C (1300°F) deposits feature higher alloy levels than to resist both abrasion and moderate impact limited to two layers with a Rockwell Hardness range of 55 60 (RHC) during sever abrasion The IWT 1 4 20 X 1 2 CDFL MILD STEEL 5000 1 CDM008795 102 is a product that is currently being researched and will soon be updated Lincoln Magnum PRO 450 Dual Schedule Welding Guns K3134 4 Comfort Grip Design Barrel style handle is lightweight and balanced