Chemical composition and mechanical properties of 12Cr1MoV alloy steel plate

12Cr1MoV alloy steel plate has high oxidation resistance and thermal strength. The creep limit of this steel is very close to the permanent strength value, and it has high plasticity under the condition of permanent stretching; 12Cr1MoV alloy steel has good manufacturability and weldability, but it needs to be preheated to 300℃ before welding, and the stress needs to be removed after welding.

Chemical composition of 12Cr1MoV alloy steel plate:
C: 0.08-0.15
Si: 0.17-0.37
Mn: 0.40-0.70
Cr: 0.90-1.20
Mo: 0.25-0.35
V: 0.15-0.30
P: ≤0.35
S:≤0.35
Cu: ≤0.25

Mechanical properties of 12Cr1MoV alloy steel plate:
Tensile strength (σb/MPa): ≥490
Yield point (σs/MPa): ≥245
Elongation after break (δ5/%): ≤22
Area shrinkage (ψ/%): ≥50
Shock absorption energy (Aku2/J): ≥71
Impact toughness αkv (J/cm2): ≥88(9)
Brinell hardness (HBS100/3000) (annealing or high temperature tempering): ≤179