DIN 17230 Grade 17NiCrMo14 annealed to achieve spheroidized carbides (+AC)

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Description

17 NiCrMo 14 is a case hardening steel for anti-friction bearings. In the Jominy test it reaches surface hardnesses of approximately 48 HRC. It is used for anti-friction bearing parts that are subjected to medium stress.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.85 - 7.86 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

207 GPa

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100.0 °C

203 GPa

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200.0 °C

197 GPa

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300.0 °C

189 GPa

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400.0 °C

181 GPa

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500.0 °C

172 GPa

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Steel

Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

100.0 °C

1.15E-5 1/K

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200.0 °C

1.2E-5 1/K

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300.0 °C

1.24E-5 1/K

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400.0 °C

1.28E-5 1/K

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500.0 °C

1.31E-5 1/K

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600.0 °C

1.35E-5 1/K

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Specific heat capacity

20.0 °C

464 J/(kg·K)

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100.0 °C

479 J/(kg·K)

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200.0 °C

496 J/(kg·K)

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300.0 °C

513 J/(kg·K)

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400.0 °C

532 J/(kg·K)

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Thermal conductivity

20.0 °C

32.9 W/(m·K)

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100.0 °C

34.2 W/(m·K)

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200.0 °C

34.8 W/(m·K)

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300.0 °C

34.4 W/(m·K)

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400.0 °C

33.3 W/(m·K)

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Thermal diffusivity

20.0 °C

9 mm²/s

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100.0 °C

8.8 mm²/s

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200.0 °C

8.5 mm²/s

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300.0 °C

7.8 mm²/s

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400.0 °C

7.1 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

3.17E-7 Ω·m

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100.0 °C

3.74E-7 Ω·m

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200.0 °C

4.54E-7 Ω·m

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300.0 °C

5.46E-7 Ω·m

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400.0 °C

6.53E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.15 - 0.2 %

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Chromium

1.3 - 1.6 %

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Copper

0.3 %

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Manganese

0.4 - 0.7 %

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Molybdenum

0.15 - 0.25 %

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Nickel

3.25 - 3.75 %

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Phosphorus

0.04 %

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Silicon

0.4 %

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Sulfur

0.035 %

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