Material Name: Alloy Steel

Grade: 37SiMn2MoV

Standard: GB / T 3077-1988

● Features and application:

Is an excellent overall performance of the senior quenched and tempered steel, high hardenability, after quenching with high strength and toughness. Use

Used in the manufacture of large cross-section heavy duty parts and surface hardening quenched parts, such as heavy machinery shaft. Gear. Rotor. Rod and high-pressure seamless steel tubes, etc., used in petrochemical workers in high-pressure vessel. Large bolts . The steel temperature range of -20-520 ℃, 450 ℃ working temperature can be made below the large bolt fasteners, but also can replace 35CrMo, 40CrNiMo use of such steel, the steel after quenching at low temperature tempering and then can be used for ultra-high strength steel used.

● Chemical Composition:

Carbon C: 0.33 ~ 0.39

Si Si: 0.60 ~ 0.90

Manganese Mn: 1.60 ~ 1.90

Sulfur S: to allow the residual content of ≤ 0.35

Phosphorus P: allow the residual content of ≤ 0.35

Chromium Cr: allow the residual content of ≤ 0.30

Ni: to allow the residual content of ≤ 0.30

Copper Cu: to allow the residual content of ≤ 0.30

Vanadium V: 0.05 ~ 0.12

     Mo Mo: 0.40 ~ 0.50