51CrV4 material is alloy steel grade of EN chemical designation. It is a higher level of spring steel. 51CrV4 material is a good choice to make springs with high load and big size cross-section. The addition of vanadium in 51CrV4 material can refine its grain size, reduce the overheating sensitivity, and improve its strength and toughness. The basic 51CrV4 material properties are as below.
Alloy steel grade 51CrV4 material properties - chemical composition:
| Grade | C | Si Max | Mn | P Max | S Max | Cr | V |
| 51CrV4 | 0.47-0.55 | 0.4 | 0.7-1.1 | 0.025 | 0.025 | 0.9-1.2 | 0.10-0.25 |
Alloy steel grade 51CrV4 material properties - 51CrV4 steel plate mechanical property:
| Grade | Yield Strength(MPa) | Tensile Strength(MPa) | % Elongation min |
| 51CrV4 | 900 | 1100-1300 | 12 |
51CrV4 material has good mechanical and technological properties and high hardenability. It is a chromium vanadium type spring steel with low distortion properties, and it is suitable for oil hardneing and tempering.
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