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51CrV4 1.8159

Products Details

Jiangsu Bealloy Co.,Ltd produce special alloy products, including Bar, Rod, Sheet, Plate, Pipe, Tube, Pipe Fittings, Rings, Forgings, Flange, Coil and Strip, etc. If any requirements not found, please email us sales@bealloy.com. We will offer you best price and more details. Any customizationare accepted.

51CrV4 (1.8159) spring steel has good mechanical properties and process properties, and high hardenability. The addition of vanadium refines the grain of the steel, reduces the sensitivity to overheating, improves strength and toughness, has high fatigue strength, and yield ratio Higher, but poor weldability, low plasticity due to cold deformation.

Implementation standards: EN 10089-2002.

Chemical Composition %

C	Si	Mn	S	P	Cr	Ni	Cu	V
0.47 - 0.55	max 0.40	0.70 - 1.10	max 0.030	max 0.030	0.90 - 1.20	max 0.35	max 0.25	0.10 - 0.25

Mechanical properties

Tensile strength σb (MPa)	≥1274 (130)
Yield strength σs (MPa)	≥1127 (115)
Elongation δ5 (%)	≥10
Section shrinkage rate ψ (%)	≥40
Hardness (HB)	≤321

In what applications is 51CrV4 used?

51CrV4 is a higher-grade spring. It is used as a high-load important spring with a large cross-section and a valve spring, piston spring, and safety valve spring with an operating temperature <300 ℃.

Heat treatment specifications

Quenching 850 ℃ ± 20 ℃, oil cooling; tempering 500 ℃ ± 50 ℃ (special need, ± 30 ℃)

Delivery status

Hot-rolled steel is delivered in heat-treated or non-heat-treated state, and cold-drawn steel is delivered in heat-treated state.