45CrNiMoVA

Standard: GB / T 3077-1988

45CrNiMoVA is a low alloy high strength steel, high hardenability steel, oil quenched through the critical diameter of 60mm (96% martensite), obtained after quenching and tempering of steel in high strength, and with a certain toughness, and processability molding; plastic deformation and cold welding, but less. Poor corrosion resistance, by the tempering temperature, not too high temperature, usually are in the quenching, low temperature (or the temperature) tempering before use.

● Chemical Composition:

Carbon C: 0.42 ~ 0.49

Si Si: 0.17 ~ 0.37

Manganese Mn: 0.50 ~ 0.80

Sulfur S: allow the residual content ≤ 0.025

Phosphorus P: allow the residual content ≤ 0.025

Chromium Cr: 0.80 ~ 1.10

Ni-Ni: 1.30 ~ 1.80

Copper Cu: allow the residual content ≤ 0.025

Vanadium V: 0.10 ~ 0.20

Mo Mo: 0.20 ~ 0.30

● Mechanical Properties:

Tensile strength σb (MPa): ≥ 1470 (150)

Yield strength σs (MPa): ≥ 1325 (135)

Elongation δ5 (%): ≥ 7

Reduction of area ψ (%): ≥ 35

Impact energy Akv (J): ≥ 31

Impact toughness αkv (J/cm2): ≥ 39 (4)

Hardness: ≤ 269HB

Sample size: Sample