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EN 10222-5 X2CrNiMoN22-5-3: Solution Annealed Grade with Superior Corrosion Resistance

Trademark X2CrNiMoN22-5-3 is comparable to X 2 CrNiMoN 22 5 3 acc. to SEW 400-91. This material is a ferritic-austenitic steel with high resistance to stress corrosion in chloride containing media. Favorable resistance to pitting corrosion and intercrystalline corrosion also in welded condition. The steel shows good general resistance in many corrosive media, such as organic and inorganic acids, resistance under acid gas conditions, good cold and warm formability and welding suitability. Application: chemical and petrochemical industry, for pressure tanks, heat exchangers and tubes, in offshore-technics. Application temperature -10 to 280 °C.

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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 - 30 %

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

680 - 880 MPa

Yield strength Rp0.2

20.0 °C

450 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

Max service temperature, long

-10 - 280 °C

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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