EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed

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Description

Seamless steel tube for pressure purposes with specified elevated temperature properties. The steel grade meet the essential requirements of Directive 97/23/EC.,Seamless tubes of the high-temperature X11CrMo9-1+I are used in steam boiler and pipeline construction, pressure vessel and apparatus engineering, especially in chemical industry and power station construction at temperatures from approx. 200 °C to maximum 400 °C and simultaneously high pressures. The total load and the special scaling circumstances can decrease or increase the temperature limit. Weldability is available.,Seamless tubes of the high-temperature X11CrMo9-1+I are used in steam boiler and pipeline construction, pressure vessel and apparatus engineering, especially in chemical industry and power station construction at temperatures up to approx. 550 °C and simultaneously high pressures. The total load and the special scaling circumstances can decrease or increase the temperature limit. When welding it should be considered that the behavior of the steel depends during and after welding on the applied heat treatment, the preparation and execution of the welding.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.77 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

20.0 °C

218 GPa

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100.0 °C

213 GPa

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200.0 °C

206 GPa

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300.0 °C

198 GPa

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400.0 °C

190 GPa

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500.0 °C

180 GPa

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600.0 °C

167 GPa

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700.0 °C

150 GPa

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Elongation

20.0 °C

20 %

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Elongation, transverse

20.0 °C

18 %

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Poisson's ratio

20.0 °C

0.29 [-]

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Typical for Chromium Molybdenum Steel

Tensile strength

20.0 °C

460 - 640 MPa

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Tensile strength, transverse

20.0 °C

460 - 640 MPa

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Yield strength Rp0.2

20.0 °C

210 MPa

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100.0 °C

187 MPa

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150.0 °C

186 MPa

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200.0 °C

178 MPa

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250.0 °C

177 MPa

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300.0 °C

175 MPa

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350.0 °C

171 MPa

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400.0 °C

164 MPa

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450.0 °C

153 MPa

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500.0 °C

142 MPa

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550.0 °C

120 MPa

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Yield strength Rp0.2, transverse

20.0 °C

210 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1E-5 1/K

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20.0 °C

1.08E-5 1/K

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100.0 °C

1.13E-5 1/K

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200.0 °C

1.18E-5 1/K

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300.0 °C

1.23E-5 1/K

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400.0 °C

1.27E-5 1/K

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500.0 °C

1.3E-5 1/K

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600.0 °C

1.32E-5 1/K

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700.0 °C

1.33E-5 1/K

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Max service temperature, long

0 - 550 °C

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Melting point

1382 - 1529 °C

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Typical for Chromium Molybdenum Steel

Specific heat capacity

20.0 °C

429 J/(kg·K)

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100.0 °C

464 J/(kg·K)

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200.0 °C

492 J/(kg·K)

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300.0 °C

511 J/(kg·K)

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400.0 °C

531 J/(kg·K)

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500.0 °C

554 J/(kg·K)

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600.0 °C

585 J/(kg·K)

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700.0 °C

626 J/(kg·K)

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Thermal conductivity

20.0 °C

20.7 W/(m·K)

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100.0 °C

22.6 W/(m·K)

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200.0 °C

24.4 W/(m·K)

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300.0 °C

25.8 W/(m·K)

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400.0 °C

26.9 W/(m·K)

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500.0 °C

27.8 W/(m·K)

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600.0 °C

28.5 W/(m·K)

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700.0 °C

28.8 W/(m·K)

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Thermal diffusivity

20.0 °C

6.2 mm²/s

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100.0 °C

5.9 mm²/s

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200.0 °C

6 mm²/s

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300.0 °C

6 mm²/s

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400.0 °C

5.7 mm²/s

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500.0 °C

5.4 mm²/s

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600.0 °C

4.8 mm²/s

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700.0 °C

4 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

20.0 °C

5.03E-7 Ω·m

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100.0 °C

5.67E-7 Ω·m

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200.0 °C

6.47E-7 Ω·m

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300.0 °C

7.27E-7 Ω·m

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400.0 °C

8.09E-7 Ω·m

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500.0 °C

8.9E-7 Ω·m

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600.0 °C

9.72E-7 Ω·m

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700.0 °C

1.06E-6 Ω·m

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Chemical properties

PropertyValue

Aluminium

0.04 %

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Carbon

0.08 - 0.15 %

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Chromium

8 - 10 %

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Copper

0.3 %

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Manganese

0.3 - 0.6 %

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Molybdenum

0.9 - 1.1 %

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Phosphorus

0.03 %

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Silicon

0.25 - 1 %

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Sulfur

0.01 - 0.02 %

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