24 July 2021 Structural Steel Bar
40SiMn2 Structural Steel Bar
40SiMn2 is an advanced high quality quenched and tempered steel with excellent overall performance. It has high hardenability and high strength and toughness after quenched and tempered. For the manufacture of large cross-section of heavily loaded quenched and tempered parts and surface hardening parts, such as heavy machinery shaft gear, rotor, connecting rod and high-pressure seamless steel pipe, petrochemical workers in the high-pressure vessels. . The steel temperature range of -20-520 ℃, the working temperature can be produced below 450 ℃ large bolt fasteners, but also can replace 35CrMo , 40CrNiMo and other steel used, this steel is quenched. High-strength steel to use.