DIN 17440 Grade X38Cr13 soft annealed (+A)

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Description

Properties: - in hardened state resistant to water and steam - in annealed or high tempered state corrosion resitance is not sufficient - application in hardened state with fine grounded or polished surface - application temperature: 200 °C Application - for manufacturing cutting tools (knife blades, scissors, surgical instruments) - spherical for bearings, wear resistant control elements and parts for pumps, spring, plunger, srews

Related Standards

This material data has been provided by WIAM.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
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

7.7 - 7.71 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

220 - 222 GPa

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100.0 °C

216 - 218 GPa

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200.0 °C

209 - 212 GPa

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300.0 °C

201 - 205 GPa

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400.0 °C

192 - 197 GPa

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500.0 °C

183 GPa

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600.0 °C

174 GPa

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Hardness, Brinell

20.0 °C

250 [-]

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Steel

Tensile strength

20.0 °C

800 MPa

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Thermal

PropertyTemperatureValue

Coefficient of thermal expansion

20.0 °C

1.02E-5 1/K

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100.0 °C

1.05E-5 1/K

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200.0 °C

1.09E-5 - 1.1E-5 1/K

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300.0 °C

1.13E-5 - 1.15E-5 1/K

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400.0 °C

1.16E-5 - 1.2E-5 1/K

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500.0 °C

1.2E-5 1/K

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600.0 °C

1.22E-5 1/K

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Max service temperature, long

0 - 200 °C

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Specific heat capacity

20.0 °C

439 - 460 J/(kg·K)

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100.0 °C

474 J/(kg·K)

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200.0 °C

498 J/(kg·K)

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300.0 °C

517 J/(kg·K)

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400.0 °C

538 J/(kg·K)

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500.0 °C

564 J/(kg·K)

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600.0 °C

598 J/(kg·K)

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Thermal conductivity

20.0 °C

24.6 - 30 W/(m·K)

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100.0 °C

24.7 W/(m·K)

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200.0 °C

25 W/(m·K)

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300.0 °C

25.2 W/(m·K)

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400.0 °C

25.5 W/(m·K)

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500.0 °C

25.8 W/(m·K)

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600.0 °C

26 W/(m·K)

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Thermal diffusivity

20.0 °C

7.3 mm²/s

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100.0 °C

6.4 mm²/s

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200.0 °C

6.1 mm²/s

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300.0 °C

5.8 mm²/s

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400.0 °C

5.4 mm²/s

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500.0 °C

4.8 mm²/s

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600.0 °C

4.1 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

5.87E-7 - 6.5E-7 Ω·m

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100.0 °C

6.55E-7 Ω·m

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200.0 °C

7.38E-7 Ω·m

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300.0 °C

8.19E-7 Ω·m

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400.0 °C

8.96E-7 Ω·m

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500.0 °C

9.7E-7 Ω·m

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600.0 °C

1.04E-6 Ω·m

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Chemical properties

PropertyValue

Carbon

0.35 - 0.42 %

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Chromium

12.5 - 14.5 %

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Manganese

1 %

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Phosphorus

0.05 %

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Silicon

1 %

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Sulfur

0.03 %

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