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SEW 400 X1NiCrMoCuN31-27-4 Quenched Steel (+Q) – Superior Corrosion Resistance for Chemical Applications

Properties: - due to the low C-content, very good resistant to intergranular corrosion also in the welded condition to 400 °C - resistant to chloride containing media, oxidising and reducing acids (contaminated inclusively) - by the copper content the application is very well possible in sulfur-sour media - by the high Ni-content excellently resistant to chloride-induced crack corrosion Application: - for particularly critical applications in the chemical industry during that sulfur and phosphoric acid production - in the marine engineering (seawater desalination) as well as tubing material for transport sour gases

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8 - 8.08 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

191 - 198 GPa

100.0 °C

186 - 193 GPa

200.0 °C

179 - 183 GPa

300.0 °C

172 - 175 GPa

400.0 °C

166 - 172 GPa

500.0 °C

159 GPa

Elongation

20.0 °C

40 %

Elongation, transverse

20.0 °C

35 %

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

Tensile strength, transverse

20.0 °C

500 - 700 MPa

Yield strength Rp0.2

20.0 °C

215 MPa

50.0 °C

200 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

215 MPa

Yield strength Rp1.0

20.0 °C

245 MPa

50.0 °C

230 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

245 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

0.8 - 1.5 %

Manganese

2 %

Molybdenum

3 - 4 %

Nickel

30 - 32 %

Nitrogen

0.04 - 0.15 %

Phosphorus

0.02 %

Silicon

0.7 %

Sulfur

0.015 %


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