EN 10208-2 Grade L290NB normalized or normalized formed (+N)
EN 10208-2 Grade L290NB normalized or normalized formed (+N) introduction
Steel L290NB is produced as seamless or welded pipe for flammable media in condition normalized or normalizing formed. Its yield stress is between 290 and 440 N/mm². The steel is weldable, its carbon equivalent CEV accounts for max. 0.42. 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: AFNOR TSE290, BS 43A-43B-43C, ISO L29TMC, DIN StE290.7, ISO X42NE, ISO L290NE, DIN 1.0484, DIN StE 290.7, DIN L290NB, DIN L290NE, DIN X42NE, AFNOR L290NE, AFNOR X42NE, BS L290NE, BS X42NE, EN L290NE, EN X42NE, EN 1.0484, ASTM API 5L PSL2
EN 10208-2 Grade L290NB normalized or normalized formed (+N) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.83 g/cm³ |
EN 10208-2 Grade L290NB normalized or normalized formed (+N) 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 |
-100.0 °C |
Thermal conductivity of 37.6 W/(m·K) |
- |
| - |
20.0 °C |
Thermal conductivity of 42.2 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 43.2 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 42.9 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 41.2 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 39.1 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 36.6 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 34.1 W/(m·K) |
- |
| Thermal diffusivity |
-100.0 °C |
Thermal diffusivity of 12.9 mm²/s |
- |
| - |
20.0 °C |
Thermal diffusivity of 11.7 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 11.2 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 10.3 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9.4 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.3 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
EN 10208-2 Grade L290NB normalized or normalized formed (+N) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.015 - 0.06 % |
| Carbon |
Carbon of 0.17 % |
| Chromium |
Chromium of 0.3 % |
| Copper |
Copper of 0.25 % |
| Manganese |
Manganese of 1.2 % |
| Molybdenum |
Molybdenum of 0.1 % |
| Nickel |
Nickel of 0.3 % |
| Niobium |
Niobium of 0.05 % |
| Nitrogen |
Nitrogen of 0.01 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.02 % |
| Titanium |
Titanium of 0.04 % |
| Vanadium |
Vanadium of 0.05 % |
EN 10208-2 Grade L290NB normalized or normalized formed (+N) magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10208-2 Grade L290NB normalized or normalized formed (+N) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
-100.0 °C |
Electrical resistivity of 1.82E-7 Ω·m |
| - |
20.0 °C |
Electrical resistivity of 2.47E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.96E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.68E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.55E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.56E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.75E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.13E-7 Ω·m |
EN 10208-2 Grade L290NB normalized or normalized formed (+N) 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 |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Low Carbon Steel |
| 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 |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 415 MPa |
- |
| Yield strength Rp0.5 |
20.0 °C |
Yield strength Rp0.5 of 290 - 440 MPa |
- |
| Yield strength, transverse |
20.0 °C |
Yield strength, transverse of 290 - 440 MPa |
- |
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