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Chemical composition and performance analysis of 15MnV steel

Chemical composition and performance analysis of 15MnV steel
Aug 16, 2022 page view:7

15MnV steel

15MnV is read as fifteen manganese vanadium, which belongs to low-alloy high-strength structural steel. 15MnV steel is developed on the basis of ordinary carbon structural steel by adding a small amount of alloying elements. 15MnV, 15MnTi and 16MnNb are low-alloy high-strength steels of the same grade, and the new grade of these three steels is Q390. If not for low temperature, 10MnPNbRE can also be used instead.

The chemical composition of 15MnV steel:
15MnV carbon C: ≤0.20
15MnV silicon Si: ≤0.55
15MnV Manganese Mn: 1.00-1.60
15MnV phosphorus P: ≤0.045
15MnV sulfur S: ≤0.045
15MnV Vanadium V: 0.02-0.15
15MnV titanium Ti: 0.02-0.20

Mechanical properties of 15MnV steel:
Yield point (σs≥/MPa): 390
Tensile strength (σb/MPa): 490-650
Elongation (δ5 %): 19

Characteristics of low-alloy high-strength plate
① The strength is higher than that of carbon structural steel, which can reduce the weight of the structure and save steel;

② Have sufficient plasticity, toughness and good welding performance;

③ It has good corrosion resistance and low cold-brittle transition temperature.

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