EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed
EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed introduction
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.
Equivalent material: JIS STBA26, JIS STFA26, KS STHA26, ASTM A335 Grade P9, ASTM P9, ASTM Grade P9, UNS K90941, DIN X12CrMo9-1, AFNOR Z10CD9, BS 629-590, ISO TS38, JIS STPA26, ASTM T9, DIN X12CrMo91, DIN 1.7386, BS X11CrMo9-1, JIS STPA26, EN 1.7386, ASTM Grade T9, ASTM K90941, ASTM F9
EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.77 g/cm³ |
EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.13E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.18E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.23E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.27E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
- |
| - |
700.0 °C |
Coefficient of thermal expansion of 1.33E-5 1/K |
- |
| Max service temperature, long |
- |
Max service temperature, long of 0 - 550 °C |
- |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Chromium Molybdenum Steel |
| Specific heat capacity |
20.0 °C |
Specific heat capacity of 429 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 464 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 492 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 511 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 531 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 554 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 585 J/(kg·K) |
- |
| - |
700.0 °C |
Specific heat capacity of 626 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 20.7 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 22.6 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 24.4 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 25.8 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 26.9 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 27.8 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 28.5 W/(m·K) |
- |
| - |
700.0 °C |
Thermal conductivity of 28.8 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 6.2 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 5.9 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 6 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 6 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 5.4 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 4.8 mm²/s |
- |
| - |
700.0 °C |
Thermal diffusivity of 4 mm²/s |
- |
EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.04 % |
| Carbon |
Carbon of 0.08 - 0.15 % |
| Chromium |
Chromium of 8 - 10 % |
| Copper |
Copper of 0.3 % |
| Manganese |
Manganese of 0.3 - 0.6 % |
| Molybdenum |
Molybdenum of 0.9 - 1.1 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.25 - 1 % |
| Sulfur |
Sulfur of 0.01 - 0.02 % |
EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 5.03E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 5.67E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 6.47E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 7.27E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 8.09E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 8.9E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 9.72E-7 Ω·m |
| - |
700.0 °C |
Electrical resistivity of 1.06E-6 Ω·m |
EN 10216-2 Grade X11CrMo9-1 +I,isothermic annealed mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 218 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 213 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 206 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 198 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 190 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 180 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 167 GPa |
- |
| - |
700.0 °C |
Elastic modulus of 150 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 20 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 18 % |
- |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Chromium Molybdenum Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 460 - 640 MPa |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 460 - 640 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 210 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 187 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 186 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 178 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 177 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 175 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 171 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 164 MPa |
- |
| - |
450.0 °C |
Yield strength Rp0.2 of 153 MPa |
- |
| - |
500.0 °C |
Yield strength Rp0.2 of 142 MPa |
- |
| - |
550.0 °C |
Yield strength Rp0.2 of 120 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 210 MPa |
- |
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