... Carbon steel, Duplex and super duplex steel, alloy QT steel, high temperature steel, case hardened steel, Stainless steel, Titanium and its alloy, Die steel, etc Plastic Mould Steel: S55C ... . Specification:Major size of forging as below( mm)a. forging shaft: D: 180—600, L: 500—8500, max. weight:12tb. ... hollow shaft:D:300—750, wall thickness<200, L:300—2000, Max ...