... Heavy Forging Shafts 2) stainless steel, carbon steel, alooy steel 3) rough machine or finish part 4) free forging Stainless steel heavy ... AISI 1045, GrD( Q235), Gr50 ( Q 345)Alloy Steel: AISI 1053, AISI A387Cr.12, 20CrMo, AISI 4137, ... AISI 4140, AISI 4340, AISI 431, 20 CrMnMoStainless steel: ASTM 304, ASTM 304L, ASTM 316, ASTM 316LAny ... , welcome to our factory. Stainless Steel Heavy Forging Shafts