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EN 10028-7 Grade X2CrNi12 Soft Annealed Steel (+A) – High Corrosion Resistance & Strength

The material X2CrNi12 is an ferritic steel of considerably higher corrosion resistance than general construction steels, but more cost-efficient than high-alloyed stainless steels. The corrosion resistance is comparable to the one of 13% Cr-steels. X2CrNi12 is unsuitable for higher corrosion requirements. Beside its sufficient corrosion resistance and favorable abrasion resistance the steel shows high static and dynamic strength values and ease of workability. Its not resistant to intercrystalline corrosion. Application: in transportation (construction of busses and containers), in agrarian and conveying engineering, civil engineering, e.g. for frameworks and front elements as well as in the mechanical and apparatus engineering

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.7 - 7.77 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

211.67 - 220 GPa

100.0 °C

213 - 215 GPa

200.0 °C

206 - 210 GPa

300.0 °C

198 - 205 GPa

400.0 °C

190 - 195 GPa

500.0 °C

180 GPa

600.0 °C

167 GPa

700.0 °C

150 GPa

Elongation

20.0 °C

18 - 20 %

Elongation A80

20.0 °C

18 - 20 %

Elongation A80, transverse

20.0 °C

18 - 20 %

Elongation, transverse

20.0 °C

18 - 20 %

Poisson's ratio

20.0 °C

0.3 [-]

Shear modulus

20.0 °C

81.7 GPa

Tensile strength

20.0 °C

450 - 650 MPa

Tensile strength, transverse

20.0 °C

450 - 650 MPa

Yield strength Rp0.2

20.0 °C

250 - 280 MPa

100.0 °C

240 MPa

150.0 °C

235 MPa

200.0 °C

230 MPa

250.0 °C

220 MPa

300.0 °C

215 MPa

Yield strength Rp0.2, transverse

20.0 °C

280 - 320 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1E-5 1/K

20.0 °C

1.08E-5 1/K

100.0 °C

1.04E-5 - 1.13E-5 1/K

200.0 °C

1.08E-5 - 1.18E-5 1/K

300.0 °C

1.12E-5 - 1.23E-5 1/K

400.0 °C

1.16E-5 - 1.27E-5 1/K

500.0 °C

1.19E-5 - 1.3E-5 1/K

600.0 °C

1.32E-5 1/K

700.0 °C

1.33E-5 1/K

Melting point

1425 - 1530 °C

Typical for Ferritic Stainless Steel

Specific heat capacity

20.0 °C

429 - 430 J/(kg·K)

100.0 °C

464 J/(kg·K)

200.0 °C

492 J/(kg·K)

300.0 °C

511 J/(kg·K)

400.0 °C

531 J/(kg·K)

500.0 °C

554 J/(kg·K)

600.0 °C

585 J/(kg·K)

700.0 °C

626 J/(kg·K)

Thermal conductivity

20.0 °C

20.7 - 25 W/(m·K)

100.0 °C

22.6 W/(m·K)

200.0 °C

24.4 W/(m·K)

300.0 °C

25.8 W/(m·K)

400.0 °C

26.9 W/(m·K)

500.0 °C

27.8 W/(m·K)

600.0 °C

28.5 W/(m·K)

700.0 °C

28.8 W/(m·K)

Thermal diffusivity

20.0 °C

6.2 mm²/s

100.0 °C

5.9 mm²/s

200.0 °C

6 mm²/s

300.0 °C

6 mm²/s

400.0 °C

5.7 mm²/s

500.0 °C

5.4 mm²/s

600.0 °C

4.8 mm²/s

700.0 °C

4 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

5.03E-7 - 6E-7 Ω·m

100.0 °C

5.67E-7 Ω·m

200.0 °C

6.47E-7 Ω·m

300.0 °C

7.27E-7 Ω·m

400.0 °C

8.09E-7 Ω·m

500.0 °C

8.9E-7 Ω·m

600.0 °C

9.72E-7 Ω·m

700.0 °C

1.06E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.03 %

Chromium

10.5 - 12.5 %

Manganese

1.5 %

Nickel

0.3 - 1 %

Nitrogen

0.03 %

Phosphorus

0.04 %

Silicon

1 %

Sulfur

0.015 %


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