Standard: GB / T 3077-1999
Main Features
Cold deformation of the plastic medium, cutting resistance is acceptable but poor welding. Compared with the 30Mn2 steel, high carbon content, higher strength, abrasion resistance and hardenability, quenching in oil critical diameter of 7.5 ~ 20mm, but the plastic is slightly lower, and the sensitivity of white spots overheating and temper brittleness and tendency to crack easily formed when water quenching tendency.