PMKNSH Threading Application Guide Page Number Hardness Work Material Material Material Designation Condition BHN HRC Low Carbon Steel 1010, 1018 Normalized ~190 ~10 Medium Carbon Steel 1035, 1045 Normalized ~208 ~15 High Carbon Steel 1065, 1095 Normalized ~253 ~25 4140, 4340, 8620 Normalized 253~301 25~32 Alloy Steel 4140, 4340, 8620 Hardened 327~390 35~42 300 Series / 400 Series Annealed ~253 ~25 300 Series / 400 Series Hardened 327~390 35~42 Stainless Steel 17-4, 15-5, A286 Annealed ~253 ~25 17-4, 15-5, A286 Hardened 327~390 35~42 Cast Iron Nodular, Grey As Cast ~208 ~15 Aluminum Alloy 6061, 7075, 2011 Normalized ~150 Die Cast Aluminum 356AL, 390AL As Cast ~150 Inconel 718, 625 Annealed 253~301 25~32 Inconel 718 Hardened 327~390 35~42 Nickel Based Alloy Hastelloy, Waspaloy Normalized 25~40 Kovar Normalized 25~40 6Al4V Annealed 253~301 25~32 Titanium Alloy 6Al4V, 6AL6V Hardened 327~390 35~42 D2, H13, P20, S7 Annealed 190~253 10~25 H13 Hardened 327~450 35~48 Tool Steel D2, A2 Hardened 48~55 D2, A2 Hardened 55~70 336 Application Guide WWW.OSGTOOL.COM