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X2CrNiMoN22-5-3 Solution-Annealed Steel (EN 10250-4) – High Corrosion Resistance & Superior Weldability

The make X2CrNiMoN22-5-3 is comparable to X 2 CrNiMoN 22 5 3 acc. to SEW400 : 1991-02. The material is a ferritic-austenitic steel of high resistance to stress corrosion in chloride-containing media. Favorable resistance to pitting and intercrystalline corrosion also in welded condition. The steel shows favorable general resistance in many corrosive media such as organic or inorganic acids, resistance under acid gas conditions and well warm and cold formability and weldability. Application: chemical and petrochemical industrie, for pressure boiler and tubes, in offshore-engineering.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.8 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

200 - 212 GPa

100.0 °C

194 - 206 GPa

200.0 °C

186 GPa

300.0 °C

180 GPa

Elongation

20.0 °C

25 %

Elongation, transverse

20.0 °C

20 %

Poisson's ratio

23.0 °C

0.3 [-]

Typical for Duplex Stainless Steel

Shear modulus

23.0 °C

77 GPa

Typical for Duplex Stainless Steel

Tensile strength

20.0 °C

650 - 880 MPa

Tensile strength, transverse

20.0 °C

650 - 880 MPa

Yield strength Rp0.2

20.0 °C

450 MPa

100.0 °C

360 MPa

150.0 °C

335 MPa

200.0 °C

315 MPa

250.0 °C

300 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

100.0 °C

1.3E-5 - 1.33E-5 1/K

200.0 °C

1.35E-5 1/K

300.0 °C

1.4E-5 1/K

Max service temperature

300 °C

Typical for Duplex Stainless Steel

Melting point

1375 - 1450 °C

Typical for Duplex Stainless Steel

Specific heat capacity

20.0 °C

500 J/(kg·K)

Thermal conductivity

20.0 °C

13.4 - 15 W/(m·K)

100.0 °C

14.9 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.85E-7 Ω·m

100.0 °C

8.44E-7 Ω·m

Chemical properties

PropertyValue

Carbon

0.03 %

Chromium

21 - 23 %

Manganese

2 %

Molybdenum

2.5 - 3.5 %

Nickel

4.5 - 6.5 %

Nitrogen

0.1 - 0.22 %

Phosphorus

0.04 %

Silicon

1 %

Sulfur

0.015 %


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