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SEW 400 X1NiCrMoCuN25-20-6 Quenched Steel – Superior Corrosion Resistance for Offshore Applications

Properties: - more with Mo alloyed as 1.4539 - possesses a very high resistance to intergranular corrosion, pitting corrosion and crack corrosion - it has the highest effect sum (Pittingindex) of the steel with 46 Application: - in highly chloride containing media, e.g. in appropriate sulfur and phosphoric acid - in plants of the offshore technology

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.76 - 8 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 - 198 GPa

100.0 °C

190 - 193 GPa

200.0 °C

182 - 183 GPa

300.0 °C

174 - 175 GPa

400.0 °C

166 - 172 GPa

500.0 °C

158 - 159 GPa

600.0 °C

150 GPa

700.0 °C

142 GPa

800.0 °C

134 GPa

900.0 °C

127 GPa

1000.0 °C

120 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

600 - 800 MPa

Tensile strength, transverse

20.0 °C

600 - 800 MPa

Yield strength Rp0.2

20.0 °C

270 MPa

50.0 °C

240 MPa

100.0 °C

230 MPa

150.0 °C

210 MPa

200.0 °C

190 MPa

250.0 °C

180 MPa

300.0 °C

170 MPa

350.0 °C

160 MPa

400.0 °C

140 MPa

450.0 °C

130 MPa

500.0 °C

120 MPa

550.0 °C

105 MPa

Yield strength Rp0.2, transverse

20.0 °C

270 MPa

Yield strength Rp1.0

20.0 °C

310 MPa

50.0 °C

280 MPa

100.0 °C

270 MPa

150.0 °C

245 MPa

200.0 °C

225 MPa

250.0 °C

215 MPa

300.0 °C

205 MPa

350.0 °C

190 MPa

400.0 °C

170 MPa

450.0 °C

160 MPa

500.0 °C

150 MPa

550.0 °C

135 MPa

Yield strength Rp1.0, transverse

20.0 °C

310 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.49E-5 1/K

20.0 °C

1.61E-5 1/K

100.0 °C

1.58E-5 - 1.67E-5 1/K

200.0 °C

1.61E-5 - 1.72E-5 1/K

300.0 °C

1.65E-5 - 1.77E-5 1/K

400.0 °C

1.69E-5 - 1.81E-5 1/K

500.0 °C

1.73E-5 - 1.84E-5 1/K

600.0 °C

1.88E-5 1/K

700.0 °C

1.91E-5 1/K

800.0 °C

1.94E-5 1/K

900.0 °C

1.97E-5 1/K

1000.0 °C

2E-5 1/K

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

-100.0 °C

440 J/(kg·K)

20.0 °C

450 - 472 J/(kg·K)

100.0 °C

487 J/(kg·K)

200.0 °C

503 J/(kg·K)

300.0 °C

512 J/(kg·K)

400.0 °C

520 J/(kg·K)

500.0 °C

530 J/(kg·K)

600.0 °C

541 J/(kg·K)

700.0 °C

551 J/(kg·K)

800.0 °C

559 J/(kg·K)

900.0 °C

565 J/(kg·K)

1000.0 °C

571 J/(kg·K)

Thermal conductivity

20.0 °C

11.9 - 12 W/(m·K)

100.0 °C

13.3 W/(m·K)

200.0 °C

15.1 W/(m·K)

300.0 °C

16.7 W/(m·K)

400.0 °C

18.3 W/(m·K)

500.0 °C

19.8 W/(m·K)

600.0 °C

21.3 W/(m·K)

700.0 °C

22.8 W/(m·K)

800.0 °C

24.3 W/(m·K)

900.0 °C

25.7 W/(m·K)

1000.0 °C

27.1 W/(m·K)

Thermal diffusivity

20.0 °C

3.3 mm²/s

100.0 °C

3.4 mm²/s

200.0 °C

3.7 mm²/s

300.0 °C

4.1 mm²/s

400.0 °C

4.3 mm²/s

500.0 °C

4.5 mm²/s

600.0 °C

4.7 mm²/s

700.0 °C

5 mm²/s

800.0 °C

5.4 mm²/s

900.0 °C

5.7 mm²/s

1000.0 °C

5.8 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

9.59E-7 - 1E-6 Ω·m

100.0 °C

1.01E-6 Ω·m

200.0 °C

1.05E-6 Ω·m

300.0 °C

1.1E-6 Ω·m

400.0 °C

1.13E-6 Ω·m

500.0 °C

1.17E-6 Ω·m

600.0 °C

1.19E-6 Ω·m

700.0 °C

1.22E-6 Ω·m

800.0 °C

1.24E-6 Ω·m

900.0 °C

1.26E-6 Ω·m

1000.0 °C

1.28E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.02 %

Chromium

19 - 21 %

Copper

0.5 - 1.5 %

Manganese

2 %

Molybdenum

6 - 7 %

Nickel

24 - 26 %

Nitrogen

0.1 - 0.25 %

Phosphorus

0.03 %

Silicon

1 %

Sulfur

0.015 %


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