EN 10090 Grade X53CrMnNiN21-9 solution heat-treated and precipitation hardened (+AT+P)

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Description

X53CrMnNiN21-9 is an austenitic Cr-Mn-Ni-N-alloyed valve steel. The steel shows very high corrosion resistance in exhaust condensate and to lead compounds at increased temperatures. Use: inlet valves, exhaust valves, valves

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

7.8 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

205 GPa

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Elongation

20.0 °C

8 %

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Hardness, Rockwell C

20.0 °C

30 [-]

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Austenitic Stainless Steel

Reduction of area

20.0 °C

10 %

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Shear modulus

23.0 °C

77 GPa

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Typical for Austenitic Stainless Steel

Tensile strength

20.0 °C

950 - 1200 MPa

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500.0 °C

650 MPa

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550.0 °C

600 MPa

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600.0 °C

550 MPa

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650.0 °C

500 MPa

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700.0 °C

450 MPa

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750.0 °C

370 MPa

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800.0 °C

300 MPa

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Yield strength Rp0.2

20.0 °C

580 MPa

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500.0 °C

350 MPa

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550.0 °C

330 MPa

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600.0 °C

300 MPa

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650.0 °C

270 MPa

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700.0 °C

250 MPa

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750.0 °C

230 MPa

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800.0 °C

200 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.55E-5 1/K

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300.0 °C

1.75E-5 1/K

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500.0 °C

1.85E-5 1/K

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700.0 °C

1.88E-5 1/K

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Melting point

1230 - 1480 °C

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Typical for Austenitic Stainless Steel

Specific heat capacity

20.0 °C

500 J/(kg·K)

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Thermal conductivity

20.0 °C

14.5 W/(m·K)

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Electrical

PropertyTemperatureValueComment

Electrical resistivity

23.0 °C

8.5E-7 Ω·m

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Typical for Austenitic Stainless Steel

Chemical properties

PropertyValue

Carbon

0.48 - 0.58 %

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Chromium

20 - 22 %

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Manganese

8 - 10 %

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Nickel

3.25 - 4.5 %

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Nitrogen

0.35 - 0.5 %

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Phosphorus

0.05 %

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Silicon

0.25 %

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Sulfur

0.03 %

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