Attributes . For Aluminum : Casting, Cast Iron, Low Carbon Steel : 1010, 1018, Medium Carbon Steel : 1035, 1045, High Carbon Steel : 1065, Alloy Steels : 4140, 4340, Die Steels : 20 HrC, Stainless Steels : 300, Stainless Steels : 400, Stainless Steels : 17-4PH,Titanium: 6Al4V, Hardened Steels : 35 HrC, Hardened Steels : 35-45 HrC . Names