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EN 10263‑3 Grade 15CrNi6 Steel – Annealed for Spheroidized Carbides (+AC)

The cold-upsettable steel 15 CrNi 6 is suitable for the manufacture of screws and nuts (soft-annealed condition with pre- and/or post treatment) used in automobile, motor and equipment construction and in general engineering. The steel finds additional use, amongst other things, for drive sprockets, gudgeon pins, gear shafts (for example in case-hardened condition).

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.84 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

20.0 °C

212 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

Poisson's ratio

23.0 °C

0.29 [-]

Typical for Nickel Chromium Molybdenum Steel

Reduction of area

20.0 °C

58 %

Tensile strength

20.0 °C

580 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

Max service temperature, long

-60 - 500 °C

Melting point

1382 - 1529 °C

Typical for Nickel 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

-100.0 °C

31.9 W/(m·K)

20.0 °C

37.6 W/(m·K)

100.0 °C

39.3 W/(m·K)

200.0 °C

40.1 W/(m·K)

300.0 °C

39.6 W/(m·K)

400.0 °C

38.4 W/(m·K)

500.0 °C

36.7 W/(m·K)

600.0 °C

34.8 W/(m·K)

Thermal diffusivity

-100.0 °C

10.9 mm²/s

20.0 °C

10.4 mm²/s

100.0 °C

10.1 mm²/s

200.0 °C

9.7 mm²/s

300.0 °C

9 mm²/s

400.0 °C

8.1 mm²/s

500.0 °C

7.1 mm²/s

600.0 °C

5.9 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

-100.0 °C

2.14E-7 Ω·m

20.0 °C

2.77E-7 Ω·m

100.0 °C

3.26E-7 Ω·m

200.0 °C

3.94E-7 Ω·m

300.0 °C

4.74E-7 Ω·m

400.0 °C

5.66E-7 Ω·m

500.0 °C

6.73E-7 Ω·m

600.0 °C

7.96E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.14 - 0.19 %

Chromium

1.4 - 1.7 %

Manganese

0.4 - 0.6 %

Nickel

1.4 - 1.7 %

Phosphorus

0.04 %

Silicon

0.4 %

Sulfur

0.035 %


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