DIN 17440 Grade X20Cr13 quenched and tempered (+QT2)

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Description

Propertties: - good corrosion resistance to water and steam - is able for high gloss polishing - application temperature: -40 up to 550°C Application: - for construction elements, requiring higher strengths because higher mechanical loadings - axis, parts for pumps, plunger, valve cone, nozzle pin, propeller for ships - also for beater bars and surgical instruments

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

7.7 - 7.71 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

216 - 222 GPa

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100.0 °C

213 - 216 GPa

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200.0 °C

207 - 209 GPa

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300.0 °C

200 - 201 GPa

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400.0 °C

192 GPa

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500.0 °C

183 GPa

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600.0 °C

174 GPa

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Elongation

20.0 °C

12 - 14 %

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Elongation, transverse

20.0 °C

8 - 10 %

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Martensitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

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Typical for Martensitic Stainless Steel

Tensile strength

20.0 °C

750 - 950 MPa

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Tensile strength, transverse

20.0 °C

750 - 950 MPa

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Yield strength Rp0.2

20.0 °C

550 MPa

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Yield strength Rp0.2, transverse

20.0 °C

550 MPa

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Thermal

PropertyTemperatureValueComment

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

-40 - 550 °C

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Melting point

1370 - 1530 °C

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Typical for Martensitic Stainless Steel

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 - 6E-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

0.17 - 0.25 %

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Chromium

12 - 14 %

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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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