Post oil quenched hardness: 47 HRC surface, 43 HRC 1/2 radius, 42 HRC center AISI 4150 is notable for increased hardenability with a small tradeoff in machinability. Best strength and hardness appears in preheat-treated condition. Tailoring carbon content to bar size allows uniform physical attributes to be maintained across a variety of sizes. |
Chromium-molybdenum steels, SAE J404, SAE J412, SAE J770, DIN 1.7228, JIS SCM 5 H, JIS SCM 5, UNS G41500, ASTM A322, ASTM A331, ASTM A505, ASTM A519, MIL SPEC MIL-S-11595 (ORD4150) |