Structural steels, deep drawing steels, machining steels Structural steels, quenched and tempered steels Hardened steels, spring steels, quenched and tempered steels Low alloy hot work steels Nitriding steels, high alloy hot work steels Unalloyed tool steels Cold work steels High speed steels cast iron Rust and acid resistant steels (light) Rust and acid resistant steels (heavy) Duplex and heat resistant steels Nickel-based alloys Aluminum bronze titanium alloys