The application of 50Mn steel

50Mn steel has high strength, elasticity and hardness, and is mostly used after quenching and tempering, with poor welding performance.

50Mn steel is used to manufacture heat treated parts with high wear resistance requirements under high load, such as gears, gear shafts and mandrels with a section of less than 80mm. The properties of 50Mn steel are similar to that of No. 50 steel, but its hardenability is high.

The strength, hardness and elasticity of 50Mn steel after heat treatment are slightly higher than that of No. 50 steel. It has poor weldability, with overheating sensitivity and temper brittleness tendency. It is used for stress bearing parts, high wear resistant parts and high stress parts, such as mandrels with a diameter of less than 80mm. After high-frequency quenching, 50Mn steel can also be used to manufacture train shafts, worms, connecting rods and automobile crankshafts, such as gears, gear shafts, friction discs, mandrels, flat springs, etc.