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EN 10269 X2CrNiMo17-12-2 Solution-Annealed Steel – Superior Corrosion Resistance & Formability

Trademark X2CrNIMo17-12-2 is comparable to X 2 CrNiMo 17 13 2 acc. to DIN 17440-85. It is a modification of steel 1.4401 and it is a steel of high resistance to non-oxidizing acids and chloride-containing media. It is suitable for mirror finishing and very good cold formable. The corrosion properties are still improved by the lowered C-content. This material is resistant to intercrystalline corrosion also in sensitized condition. Application in chemical apparatus engineering as well as in cellulose, textile and pharmaceutical industry and in sewage plants. Approved for pressure vessel construction up to 400 °C, beyond it subject to authorization. Further application for mounting elements at increased and lower temperatures.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.96 - 8 g/cm³

Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

206 GPa

20.0 °C

196 - 200 GPa

100.0 °C

190 - 194 GPa

200.0 °C

182 - 186 GPa

300.0 °C

174 - 179 GPa

400.0 °C

166 - 172 GPa

500.0 °C

158 - 165 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 %

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

500 - 700 MPa

50.0 °C

460 MPa

100.0 °C

430 MPa

150.0 °C

410 MPa

200.0 °C

390 MPa

250.0 °C

385 MPa

300.0 °C

380 MPa

350.0 °C

380 MPa

400.0 °C

380 MPa

450.0 °C

375 MPa

500.0 °C

360 MPa

550.0 °C

335 MPa

Yield strength Rp0.2

20.0 °C

200 MPa

50.0 °C

187 MPa

100.0 °C

165 MPa

150.0 °C

150 MPa

200.0 °C

137 MPa

250.0 °C

127 MPa

300.0 °C

119 MPa

350.0 °C

113 MPa

400.0 °C

108 MPa

450.0 °C

103 MPa

500.0 °C

100 MPa

550.0 °C

98 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

1.6E-5 - 1.67E-5 1/K

200.0 °C

1.65E-5 - 1.72E-5 1/K

300.0 °C

1.7E-5 - 1.77E-5 1/K

400.0 °C

1.75E-5 - 1.81E-5 1/K

500.0 °C

1.8E-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

Max service temperature, long

0 - 400 °C

Melting point

1230 - 1480 °C

Typical for Austenitic Stainless Steel

Specific heat capacity

-100.0 °C

440 J/(kg·K)

20.0 °C

472 - 500 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

13.3 - 15 W/(m·K)

100.0 °C

14.9 W/(m·K)

200.0 °C

16.5 W/(m·K)

300.0 °C

18.1 W/(m·K)

400.0 °C

19.5 W/(m·K)

500.0 °C

21 W/(m·K)

600.0 °C

22.4 W/(m·K)

700.0 °C

23.8 W/(m·K)

800.0 °C

25.2 W/(m·K)

Thermal diffusivity

20.0 °C

3.5 mm²/s

100.0 °C

3.8 mm²/s

200.0 °C

4 mm²/s

300.0 °C

4.3 mm²/s

400.0 °C

4.5 mm²/s

500.0 °C

4.7 mm²/s

600.0 °C

4.8 mm²/s

700.0 °C

5.1 mm²/s

800.0 °C

5.4 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

7.5E-7 - 7.91E-7 Ω·m

100.0 °C

8.45E-7 Ω·m

200.0 °C

9.19E-7 Ω·m

300.0 °C

9.77E-7 Ω·m

400.0 °C

1.03E-6 Ω·m

500.0 °C

1.08E-6 Ω·m

600.0 °C

1.12E-6 Ω·m

700.0 °C

1.15E-6 Ω·m

800.0 °C

1.18E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.03 %

Chromium

16.5 - 18.5 %

Manganese

2 %

Molybdenum

2 - 2.5 %

Nickel

10 - 13 %

Nitrogen

0.1 %

Phosphorus

0.05 %

Silicon

1 %

Sulfur

0.015 - 0.03 %


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