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EN 10028-7 X1NiCrMoCu31-27-4 – Solution Annealed Austenitic Steel with Superior Corrosion Resistance

The high corrosion resistant austenitic steel X1NiCrMoCu31-27-4 will be delivered in solution annealed condition as hot rolled sheet, bars, wire rod and profiles. It shows resistance to intercrystalline corrosion even in sensitized condition. Application: heat exchanger, petroleum and gas industry

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 A80, transverse

20.0 °C

40 %

Elongation, transverse

20.0 °C

40 %

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

20.0 °C

500 - 700 MPa

50.0 °C

485 MPa

100.0 °C

460 MPa

150.0 °C

445 MPa

200.0 °C

430 MPa

250.0 °C

410 MPa

300.0 °C

400 MPa

350.0 °C

395 MPa

Tensile strength, transverse

20.0 °C

500 - 700 MPa

Yield strength Rp0.2

50.0 °C

209 MPa

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

50.0 °C

245 MPa

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

260 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

1E-6 - 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

0.1 - 0.11 %

Phosphorus

0.03 %

Silicon

0.7 %

Sulfur

0.01 %


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