52CrMoV4 Spring Steel Bar


52CrMoV4 is a springsteel suitable for quenching and tempering, used in e.g. leaf springs and other vehicle springs.The strength and hardenability of 52CrMoV4 steel is strengthened not only by chromium and vanadium - as in the case of 52CrV4 / AISI 6150, but also by molybdenum. Molybdenum strengthens the solution during heat treatment, while chromium and vanadium form carbides that improve the hardness of the material during tempering.


Chemical Composition:




Mechanical Properties:


 Tensile Strength σb (MPa): Yield Strength σ0.2 (MPa): Elongation δ5 (%):Section shrinkage ψ (%): Impact (ISO-V) strengthmin
≥ 1274 (130)  ≥1176 (120)≥ 6 ≥3520 °C 10 J (long)


Physical Properties:


Modulus of elasticity
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) andThermal conductivity
Specific thermal capacity
Specific electrical resistivity
(Ω mm²/m)
Poisson’s coefficient, ν
31--  0.11- 
395595-32.3222 - 
529-1412.2  332243


51CrMoV4 Technical Data Sheet PDF 


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