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20160323093435-52CrMoV4 (51CrMoV4)

This document provides information on the material 52CrMoV4, including its chemical composition, applications, heat treatment processes, and mechanical properties. 52CrMoV4 is a hot rolled steel suitable for quenching and tempering into highly strained springs. It has a carbon content of 0.5% and contains chromium, molybdenum, and vanadium. Its applications include leaf springs, helical vehicle springs, and stabilizers. Heat treatments include normalizing, soft annealing, hardening, and tempering. After hardening and tempering, it has a minimum 0.2% proof stress of 1200 MPa, tensile strength between 1400-1700 MPa, and specified ductility and impact resistance

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Martin Hristov
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379 views1 page

20160323093435-52CrMoV4 (51CrMoV4)

This document provides information on the material 52CrMoV4, including its chemical composition, applications, heat treatment processes, and mechanical properties. 52CrMoV4 is a hot rolled steel suitable for quenching and tempering into highly strained springs. It has a carbon content of 0.5% and contains chromium, molybdenum, and vanadium. Its applications include leaf springs, helical vehicle springs, and stabilizers. Heat treatments include normalizing, soft annealing, hardening, and tempering. After hardening and tempering, it has a minimum 0.2% proof stress of 1200 MPa, tensile strength between 1400-1700 MPa, and specified ductility and impact resistance

Uploaded by

Martin Hristov
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Material specification sheet

Saarstahl - 52CrMoV4 (51CrMoV4)


Material No.: Former brand name: International steel grades:

1.7701 F4K BS:


AFNOR: 51CDV4
SAE:

Material group: Hot rolled steel for springs suitable for quenching and tempering ac-
cording to DIN 17221

Chemical C Si Mn Cr Mo V
composition:
(Typical analysis in %) 0,50 0,25 0,90 1,10 0,25 0,10

Application: Hot rolled steel for springs for highly strained springs suitable for
quenching and tempering, as leaf springs and helical vehicle
springs, stabilisers vehicle, torsion bars, cup springs.

Hot forming and Hot forming: 1050 - 850°C


heat treatment: Hot deformation: 920 - 830°C
Normalising: 850 - 880°C/air
Soft annealing: 640 - 680°C/furnace
Hardening: 830 - 860°C/oil
Tempering: 430 - 500°C/air

Mechanical Treated for cold shearability +S: max. 280 HB


Properties: Soft annealed +A: max. 248 HB
Spheroidized annealed - GKZ (+AC) max. 225 HB
Core hardness after quenching: min. 54 HRC

Hardened and tempered, H+A, 16 mm flat steel bars, 25 mm bars

0,2% proof stress


Rp0,2 [N/mm²] min. 1200

Tensile strength Rm [N/mm²] 1400 - 1700

Fracture elongation A5 [%] min. 6

Reduction of area Z [%] min. 30

Notch impact energy ISO-V [J] min. 6

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