20Mn2 alloy steel is a commonly used medium carbon Mn alloy type known for its excellent durability and fine machinability. Its chemical make-up typically consists of approximately 0.18-0.23% C and 0.75-0.95% Mn, with https://marvinrggz865427.pointblog.net/20mn2-steel-properties-applications-and-heat-treatment-87396818