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EN 10250-4 X2CrNiN23-4 Duplex Stainless Steel – Solution Annealed (+AT)

Make X2CrNiN23-4 is comparable to X 2 CrNiN 23 4 acc. to SEW 400 :1991-02. The material is a stainless Duplex-steel of high strength and hardness and favorable resistance to general corrosion, pitting corrosion and especially to stress corrosion. Furthermore it shows resistance to intercrystalline corrosion also insensitized condition. Application for leight weight constructions of longer durability and higher reliability, for heat-exchanger and pipelines in chloride-containing media, hydraulic tubes, feeder water preheater, agitator shafts, steam heating systems.

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

600 - 830 MPa

Tensile strength, transverse

20.0 °C

600 - 830 MPa

Yield strength Rp0.2

20.0 °C

400 MPa

100.0 °C

330 MPa

150.0 °C

300 MPa

200.0 °C

280 MPa

250.0 °C

265 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

22 - 24 %

Copper

0.1 - 0.6 %

Manganese

2 %

Molybdenum

0.1 - 0.6 %

Nickel

3.5 - 5.5 %

Nitrogen

0.05 - 0.2 %

Phosphorus

0.04 %

Silicon

1 %

Sulfur

0.015 %


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