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51CrV4 Annealed Spring Steel

51CrV4

51CrV4-50CrV4 Annealed Spring Steel

The 50CrV4 material, produced in cold-rolled and annealed forms, is generally supplied in two mechanical property ranges: annealed and tempered.

The untreated material is referred to as annealed, while the heat-treated material is referred to as tempered. Previously known as 50CrV4 Steel under DIN/German standards, this material was redefined as 51CrV4 Steel under the European Norm while maintaining the same technical specifications.

Technical Specifications of 51CrV4 Grade Annealed Spring Steel

51CrV4 Grade Annealed Spring Steel is produced in cold-rolled form according to the EN 10132-4 standard, with a work number of 1.8159. It is typically supplied in its annealed form but can also be converted into its tempered form through heat treatment by users. Additionally, upon request, our company can supply it in tempered form as well.

Applications of 51CrV4 Grade Annealed Spring Steel

Due to its high wear resistance, 51CrV4 Grade Annealed Spring Steel is widely used in the automotive and industrial sectors.

Standard Comparison

EN 10132 UNI DIN AFNOR BS SAE/AISI
51CrV4 50CrV4 50CrV4 50CrV4 50CrV4 50CrV4

Chemical Compositions %

C Mn Si P max. S max. Cr max. Ni max. Mo max. V
0,47-0,55 0,70-1,10 0,40 0,025 0,250 0,90-1,20 0,40 0,10 0,10-0,25

Mechanical Properties

Rm max N/mm² HV max. A% (Lo80 min)
700 220 13

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