27SiMn seamless steel pipe

Short Description:

This kind of steel has better properties than 30Mn2 steel, high hardenability, critical hardenability diameter of 8 ~ 22mm in water, good machinability, medium cold deformation plasticity and weldability; In addition, the toughness of steel does not decrease much during heat treatment, but it has quite high strength and wear resistance, especially when water quenching; However, this steel is sensitive to white spots, temper brittleness and overheating sensitivity during heat treatment