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EN 10269 X22CrMoV12-1 QT2 Steel – High-Temperature Performance

Heat-treatable high-temperature steel with good thermal resistance up to 580 °C and scaling resistance up to 600 °C Application in reactor engineering, chemical industry as well as in turbine, steam boiler and pipeline construction and for screws and nuts. Further application for mounting elements at increased temperatures.

Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.7 - 7.76 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

216 - 218 GPa

100.0 °C

209 - 213 GPa

200.0 °C

200 - 206 GPa

300.0 °C

190 - 198 GPa

400.0 °C

179 - 190 GPa

500.0 °C

167 - 180 GPa

600.0 °C

127 - 167 GPa

Elongation

20.0 °C

11 %

Poisson's ratio

20.0 °C

0.28 [-]

Reduction of area

20.0 °C

35 %

Shear modulus

20.0 °C

84.95 GPa

Tensile strength

20.0 °C

900 - 1050 MPa

Yield strength Rp0.2

20.0 °C

700 MPa

50.0 °C

681 MPa

100.0 °C

650 MPa

150.0 °C

625 MPa

200.0 °C

600 MPa

250.0 °C

575 MPa

300.0 °C

550 MPa

350.0 °C

518 MPa

400.0 °C

485 MPa

450.0 °C

440 MPa

500.0 °C

390 MPa

550.0 °C

330 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

20.0 °C

1.02E-5 1/K

100.0 °C

1.05E-5 1/K

200.0 °C

1.09E-5 1/K

300.0 °C

1.13E-5 1/K

400.0 °C

1.16E-5 1/K

500.0 °C

1.2E-5 1/K

600.0 °C

1.22E-5 1/K

Max service temperature, long

0 - 580 °C

Melting point

1370 - 1530 °C

Typical for Martensitic Stainless Steel

Specific heat capacity

20.0 °C

439 J/(kg·K)

100.0 °C

474 J/(kg·K)

200.0 °C

498 J/(kg·K)

300.0 °C

517 J/(kg·K)

400.0 °C

538 J/(kg·K)

500.0 °C

564 J/(kg·K)

600.0 °C

598 J/(kg·K)

Thermal conductivity

20.0 °C

24 W/(m·K)

100.0 °C

24.4 W/(m·K)

200.0 °C

24.8 W/(m·K)

300.0 °C

25.1 W/(m·K)

400.0 °C

25.6 W/(m·K)

500.0 °C

26.1 W/(m·K)

600.0 °C

26.4 W/(m·K)

Thermal diffusivity

20.0 °C

7.1 mm²/s

100.0 °C

6.3 mm²/s

200.0 °C

6 mm²/s

300.0 °C

5.7 mm²/s

400.0 °C

5.4 mm²/s

500.0 °C

4.9 mm²/s

600.0 °C

4.1 mm²/s

Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

6.03E-7 Ω·m

100.0 °C

6.68E-7 Ω·m

200.0 °C

7.43E-7 Ω·m

300.0 °C

8.17E-7 Ω·m

400.0 °C

8.9E-7 Ω·m

500.0 °C

9.62E-7 Ω·m

600.0 °C

1.04E-6 Ω·m

Chemical properties

PropertyValue

Carbon

0.18 - 0.24 %

Chromium

11 - 12.5 %

Manganese

0.4 - 0.9 %

Molybdenum

0.8 - 1.2 %

Nickel

0.3 - 0.8 %

Phosphorus

0.03 %

Silicon

0.5 %

Sulfur

0.015 %

Vanadium

0.25 - 0.35 %


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