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EN 10132-4 Grade 51CrV4 Quenched & Tempered Steel (QT) – High-Performance Cold-Rolled Strip

The steel 51CrV4 is used as cold rolled strip for springs and special applications in thicknesses of up to 6 mm and as tempered cold strip in thicknesses from 0.30 to 3.00 mm.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.83 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 - 212.6 GPa

100.0 °C

207 GPa

200.0 °C

199 GPa

300.0 °C

192 GPa

400.0 °C

184 GPa

500.0 °C

175 GPa

600.0 °C

164 GPa

Hardness, Rockwell C

20.0 °C

38.5 - 52.5 [-]

Hardness, Vickers

20.0 °C

370 - 570 [-]

Poisson's ratio

20.0 °C

0.29 [-]

Tensile strength

20.0 °C

1200 - 1800 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

20.0 °C

1.15E-5 1/K

100.0 °C

1.21E-5 1/K

200.0 °C

1.27E-5 1/K

300.0 °C

1.32E-5 1/K

400.0 °C

1.36E-5 1/K

500.0 °C

1.4E-5 1/K

600.0 °C

1.44E-5 1/K

Melting point

1382 - 1529 °C

Typical for Chromium Vanadium Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

20.0 °C

461 J/(kg·K)

100.0 °C

479 J/(kg·K)

200.0 °C

499 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

536 J/(kg·K)

500.0 °C

558 J/(kg·K)

600.0 °C

587 J/(kg·K)

Thermal conductivity

20.0 °C

45.1 W/(m·K)

100.0 °C

45.1 W/(m·K)

200.0 °C

44.1 W/(m·K)

300.0 °C

41.9 W/(m·K)

400.0 °C

39.4 W/(m·K)

500.0 °C

36.9 W/(m·K)

600.0 °C

34.4 W/(m·K)

Thermal diffusivity

20.0 °C

12.5 mm²/s

100.0 °C

11.6 mm²/s

200.0 °C

10.6 mm²/s

300.0 °C

9.5 mm²/s

400.0 °C

8.4 mm²/s

500.0 °C

7.1 mm²/s

600.0 °C

5.8 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.31E-7 Ω·m

100.0 °C

2.84E-7 Ω·m

200.0 °C

3.58E-7 Ω·m

300.0 °C

4.48E-7 Ω·m

400.0 °C

5.52E-7 Ω·m

500.0 °C

6.71E-7 Ω·m

600.0 °C

8.06E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.47 - 0.55 %

Chromium

0.9 - 1.2 %

Manganese

0.7 - 1.1 %

Molybdenum

0.1 %

Nickel

0.4 %

Phosphorus

0.03 %

Silicon

0.4 %

Sulfur

0.025 %

Vanadium

0.1 - 0.25 %


Metal

  1. EN 10083-1 Grade 51CrV4: Quenched & Tempered Steel (QT)
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  3. EN 10132-4 Grade 80CrV2 Steel: Quenched & Tempered (QT) – High-Performance Spring Strip
  4. EN 10132-4 Grade C55S Quenched & Tempered Steel – Ideal for Springs & Cold-Rolled Strips
  5. EN 10132-4 Grade C60S – Premium Quenched & Tempered High‑Carbon Steel
  6. EN 10132-4 Grade C90S Quenched & Tempered Steel – High-Performance Spring Material
  7. EN 10132-4 Grade C100S: Quenched & Tempered Steel for Precision Springs and Cold‑Rolled Applications
  8. EN 10132‑4 Grade C85S Quenched & Tempered Steel – Premium Cold‑Rolled Strip for Springs & Thin Components
  9. EN 10132-4 Grade C125S Quenched & Tempered Steel – Precision Spring & Watch Industry Grade
  10. EN 10089 Grade 51CrV4 Quenched & Tempered Steel – Premium for High‑Temperature Springs