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EN 10250-4 X1NiCrMoCu31-27-4: Premium Solution‑Annealed Austenitic Steel with Superior Corrosion Resistance

The high corrosion resistant austenitic material X1NiCrMoCu31-27-4 is comparable to X 1 NiCrMoCu 31 27 4 acc. to SEW 400 : 1991-02. It is used in solution annealed condition in the form of warm rolled sheet and bars, wire rod and profiles. The material is resistant to intercrystalline corrosion also in sensitized condition.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8 - 8.08 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

191 - 195 GPa

100.0 °C

186 - 190 GPa

200.0 °C

179 - 182 GPa

300.0 °C

172 - 174 GPa

400.0 °C

166 GPa

500.0 °C

158 - 159 GPa

Elongation, transverse

20.0 °C

30 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Austenitic Stainless Steel

Shear modulus

23.0 °C

77 GPa

Typical for Austenitic Stainless Steel

Tensile strength, transverse

20.0 °C

500 - 750 MPa

Yield strength Rp0.2

100.0 °C

190 MPa

150.0 °C

175 MPa

200.0 °C

160 MPa

250.0 °C

155 MPa

300.0 °C

150 MPa

350.0 °C

145 MPa

400.0 °C

135 MPa

450.0 °C

125 MPa

500.0 °C

120 MPa

550.0 °C

115 MPa

Yield strength Rp0.2, transverse

20.0 °C

220 MPa

Yield strength Rp1.0

100.0 °C

220 MPa

150.0 °C

205 MPa

200.0 °C

190 MPa

250.0 °C

185 MPa

300.0 °C

180 MPa

350.0 °C

175 MPa

400.0 °C

165 MPa

450.0 °C

155 MPa

500.0 °C

150 MPa

550.0 °C

145 MPa

Yield strength Rp1.0, transverse

20.0 °C

250 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.51E-5 - 1.58E-5 1/K

200.0 °C

1.55E-5 - 1.61E-5 1/K

300.0 °C

1.58E-5 - 1.65E-5 1/K

400.0 °C

1.62E-5 - 1.69E-5 1/K

500.0 °C

1.66E-5 - 1.73E-5 1/K

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

20.0 °C

450 - 452 J/(kg·K)

100.0 °C

463 J/(kg·K)

200.0 °C

474 J/(kg·K)

300.0 °C

483 J/(kg·K)

400.0 °C

491 J/(kg·K)

500.0 °C

500 J/(kg·K)

Thermal conductivity

20.0 °C

11.7 - 12 W/(m·K)

100.0 °C

13.2 W/(m·K)

200.0 °C

15 W/(m·K)

300.0 °C

16.8 W/(m·K)

400.0 °C

18.5 W/(m·K)

500.0 °C

20.2 W/(m·K)

Thermal diffusivity

20.0 °C

3.2 mm²/s

100.0 °C

3.5 mm²/s

200.0 °C

3.8 mm²/s

300.0 °C

4.1 mm²/s

400.0 °C

4.5 mm²/s

500.0 °C

4.8 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

1.04E-6 Ω·m

100.0 °C

1.07E-6 Ω·m

200.0 °C

1.1E-6 Ω·m

300.0 °C

1.13E-6 Ω·m

400.0 °C

1.16E-6 Ω·m

500.0 °C

1.18E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.02 %

Chromium

26 - 28 %

Copper

0.7 - 1.5 %

Manganese

2 %

Molybdenum

3 - 4 %

Nickel

30 - 32 %

Nitrogen

0.11 %

Phosphorus

0.03 %

Silicon

0.7 %

Sulfur

0.01 %


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