EN 10222-5 Grade X3CrNiMo18-12-3 solution annealed (+AT)

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Description

The corrosion resistant material X3CrNiMo18-12-3, material number 1.4449 is predominantly used for pressure vessel construction.

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

8 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

200 GPa

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100.0 °C

194 GPa

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200.0 °C

186 GPa

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300.0 °C

179 GPa

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400.0 °C

172 GPa

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500.0 °C

165 GPa

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Elongation

20.0 °C

40 - 45 %

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Poisson's ratio

23.0 °C

0.3 [-]

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Typical for Austenitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

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Typical for Austenitic Stainless Steel

Tensile strength

20.0 °C

520 - 720 MPa

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Yield strength Rp0.2

20.0 °C

220 MPa

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Yield strength Rp1.0

20.0 °C

255 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.6E-5 1/K

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200.0 °C

1.65E-5 1/K

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300.0 °C

1.7E-5 1/K

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400.0 °C

1.75E-5 1/K

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500.0 °C

1.8E-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

15 W/(m·K)

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.5E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.035 %

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Chromium

17 - 18.2 %

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Copper

1 %

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Manganese

2 %

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Molybdenum

2.25 - 2.75 %

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Nickel

11.5 - 12.5 %

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Nitrogen

0.08 %

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Phosphorus

0.05 %

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Silicon

1 %

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Sulfur

0.015 %

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