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EN 10132-3: Grade 34CrMo4 Soft-Annealed or Skin-Passed (A/LC) Strip

Cold-rolled narrow strip made of the alloy steel 34CrMo4 will be delivered in thicknesses up to 6 mm for quenching and tempering and for quenched and tempered cold strip in thicknesses between 0.3 mm and 3.0 mm in following conditions: - soft annealed or soft annealed and little rerolled (+A or +LC), - cold rolled (+CR), - quenched and tempered (+QT). The delivery condition annealed to globular carbides (+AC) can be agreed.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.81 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

210.27 - 212 GPa

100.0 °C

205.17 - 207 GPa

200.0 °C

198.68 - 199 GPa

300.0 °C

191.11 - 192 GPa

400.0 °C

182.31 - 184 GPa

500.0 °C

171.64 - 175 GPa

600.0 °C

164 GPa

Elongation A80

20.0 °C

16 %

Hardness, Rockwell B

20.0 °C

88 [-]

Hardness, Vickers

20.0 °C

185 [-]

Poisson's ratio

20.0 °C

0.28 [-]

100.0 °C

0.29 [-]

200.0 °C

0.3 [-]

300.0 °C

0.3 [-]

400.0 °C

0.3 [-]

500.0 °C

0.31 [-]

Shear modulus

20.0 °C

81.88 GPa

100.0 °C

79.57 GPa

200.0 °C

76.63 GPa

300.0 °C

73.54 GPa

400.0 °C

69.99 GPa

500.0 °C

65.66 GPa

Tensile strength

20.0 °C

600 MPa

Yield strength Rp0.2

20.0 °C

460 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 Molybdenum 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

39.6 W/(m·K)

100.0 °C

41.6 W/(m·K)

200.0 °C

41.8 W/(m·K)

300.0 °C

40.3 W/(m·K)

400.0 °C

38.2 W/(m·K)

500.0 °C

36 W/(m·K)

600.0 °C

33.6 W/(m·K)

Thermal diffusivity

20.0 °C

11 mm²/s

100.0 °C

10.8 mm²/s

200.0 °C

10.1 mm²/s

300.0 °C

9.2 mm²/s

400.0 °C

8.1 mm²/s

500.0 °C

7 mm²/s

600.0 °C

5.7 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

2.63E-7 Ω·m

100.0 °C

3.08E-7 Ω·m

200.0 °C

3.78E-7 Ω·m

300.0 °C

4.66E-7 Ω·m

400.0 °C

5.69E-7 Ω·m

500.0 °C

6.87E-7 Ω·m

600.0 °C

8.26E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.3 - 0.37 %

Chromium

0.9 - 1.2 %

Manganese

0.6 - 0.9 %

Molybdenum

0.15 - 0.3 %

Phosphorus

0.04 %

Silicon

0.4 %

Sulfur

0.035 %


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