EN 10208-2 Grade L290MB thermomechanically rolled
EN 10208-2 Grade L290MB thermomechanically rolled introduction
Steel L290MB is produced as welded pipe for flammable media in condition thermomechanically rolled. Its yield stress is between 290 and 440 N/mm². The steel is weldable, its carbon equivalent CEV accounts for max. 0.40. To the welding seam (welding methods SAW, COW) applies a mandrel-diameter for the bending test of 3x nominal thickness of the pipe.
Pipes are available with interior and exterior coating.
Main fields of application are long-distance pipelines for flammable liquids (e.g. crude oil and natural gas products) as well as for compressed and liquefied flammable gases. Pipes acc. to DIN EN 10208-2 : 1996-08 also fulfil the conditions decisive for the consumption acc. to standards 5L, 5LX and 5LS of the American Petroleum Institute (API). When using these pipes has to be considered the Technical rule for flammable liquids (Technische Regel für brennbare FlüssigkeitenTRbF 301).
Equivalent material: BS 43A-43B-43C, ISO L29TMC, DIN StE290.7TM, ISO X42ME, ISO L290ME, DIN 1.0429, DIN StE 290.7 TM, DIN L290MB, DIN L290ME, DIN X42ME, AFNOR L290ME, AFNOR X42ME, BS L290ME, BS X42ME, EN 1.0429
EN 10208-2 Grade L290MB thermomechanically rolled general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
EN 10208-2 Grade L290MB thermomechanically rolled thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.19E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.25E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.41E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.45E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.49E-5 1/K |
- |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low Carbon Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 423 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 461 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 499 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 536 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 558 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 587 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 56.9 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 56.4 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 53.5 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 49.4 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 45.2 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 41.3 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 37.6 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 15.7 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 14.5 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 12.9 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 11.2 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 9.6 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.9 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 6.3 mm²/s |
- |
EN 10208-2 Grade L290MB thermomechanically rolled chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.015 - 0.06 % |
| Carbon |
Carbon of 0.16 % |
| Chromium |
Chromium of 0.3 % |
| Copper |
Copper of 0.25 % |
| Manganese |
Manganese of 1.5 % |
| Molybdenum |
Molybdenum of 0.1 % |
| Nickel |
Nickel of 0.3 % |
| Niobium |
Niobium of 0.04 % |
| Nitrogen |
Nitrogen of 0.01 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.45 % |
| Sulfur |
Sulfur of 0.02 % |
| Vanadium |
Vanadium of 0.04 % |
EN 10208-2 Grade L290MB thermomechanically rolled magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10208-2 Grade L290MB thermomechanically rolled electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.83E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.27E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 2.95E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 3.8E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 4.81E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 5.99E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 7.38E-7 Ω·m |
EN 10208-2 Grade L290MB thermomechanically rolled mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
- |
| - |
20.0 °C |
Elastic modulus of 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 207 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 199 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 192 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 184 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 175 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 23 % |
- |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 21 % |
- |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
- |
| Shear modulus |
23.0 °C |
Shear modulus of 82 GPa |
Typical for Low Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 415 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 290 - 440 MPa |
- |
| Yield strength Rp0.5 |
20.0 °C |
Yield strength Rp0.5 of 290 - 440 MPa |
- |
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