8620 Steel (AMS 6274 / AMS 2301)

Grade 8620 is a hardenable chromium, molybdenum, nickel low alloy steel often used for carburizing to develop a case-hardened part. This case-hardening will result in good wear characteristics (good strength and toughness properties). Machining is done prior to carburizing to within as close a tolerance as possible. Finish machining or grinding after heat treatment and/or carburizing, should be at a minimum so as not to impair the hardened case of the part.