51CrV4 Carbon Steel Material
51CrV4 Carbon Steel Material
51CrV4 Carbon Steel Material
51CrV4 Carbon Steel Material
51CrV4 Carbon Steel Material

51CrV4 Carbon Steel Material

51CrV4 Chemical composition: Carbon C: 0.47 ~ 0.55 Silicon Si: ≤0.40 Manganese Mn: 0.70 ~ 1.10 Sulfur S: ≤0.030 P: ≤0.030 Chromium Cr: 0.90 ~ 1.20 Nickel Ni: ≤0.35 Copper Cu: ≤0.25 Vanadium: 0.10 ~ 0.25

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Product Introduction

51CrV4(1.8159) spring steel has good mechanical properties and process properties, high hardenability, adding vanadium to refine the grain of steel, reduce overheating sensitivity, improve strength and toughness, has high strength, high yield ratio, but poor weldability, low cold deformation plasticity.

Foreign name

51CrV4

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Large section of high load important springs, etc

use

51CrV4 is a kind of spring, used as a large section of high load important spring and operating temperature <300℃ valve spring, piston spring, safety valve spring.

Mechanical property

Tensile strength σb (MPa):≥1274(130)

Yield strength σs (MPa):≥1127(115)

Elongation δ5 (%):≥10

Section shrinkage ratio ψ (%):≥40

Hardness: hot rolling,≤321HB; Cold drawing + heat treatment,≤321HB