EN 10217-7 Grade X2CrNi18-9 solution annealed (+AT)

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Description

The austenitic steel X2CrNi18-9 is available in the solution annealed condition. Welded circular tubes of this steel are used for compression load and for corrosive load at room temperature, low temperatures and elevated temperatures. The material is resistant to intercrystalline corrosion (up to 350 °C) also in the welded condition.

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

7.9 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 %

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Elongation, transverse

20.0 °C

35 %

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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

470 - 670 MPa

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Tensile strength, transverse

20.0 °C

470 - 670 MPa

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Yield strength Rp0.2

20.0 °C

180 MPa

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50.0 °C

165 MPa

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100.0 °C

145 MPa

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150.0 °C

130 MPa

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200.0 °C

118 MPa

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250.0 °C

108 MPa

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300.0 °C

100 MPa

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350.0 °C

94 MPa

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400.0 °C

89 MPa

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450.0 °C

85 MPa

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500.0 °C

81 MPa

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550.0 °C

80 MPa

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Yield strength Rp0.2, transverse

20.0 °C

180 MPa

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Yield strength Rp1.0

20.0 °C

215 MPa

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50.0 °C

200 MPa

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100.0 °C

180 MPa

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150.0 °C

160 MPa

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200.0 °C

145 MPa

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250.0 °C

135 MPa

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300.0 °C

127 MPa

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350.0 °C

121 MPa

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400.0 °C

116 MPa

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450.0 °C

112 MPa

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500.0 °C

109 MPa

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550.0 °C

108 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

1.8E-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

7.3E-7 Ω·m

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Chemical properties

PropertyValue

Carbon

0.03 %

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Chromium

17.5 - 19.5 %

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Manganese

2 %

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Nickel

8 - 10 %

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Nitrogen

0.11 %

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Phosphorus

0.05 %

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Silicon

1 %

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Sulfur

0.015 %

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