DIN 17172 Grade StE320.7 hot finished
DIN 17172 Grade StE320.7 hot finished introduction
The steel StE 320.7 is produced as seamless or welded tube in the conditions untreated or normalised.
Tubes of this steel are conform acc. 5L, 5LX and 5LS of the American Petroleum Institute (API). The Attention should be paid to the technical regulation for combustible liquids TRbF 301.
Application:
pipelines for combustible liquids (e.g. petroleum and his products) and for compressed or liquid combustible gases
Equivalent material: AFNOR TSE320, DIN 1.0409, EN 1.0409
DIN 17172 Grade StE320.7 hot finished general
| Property | Temperature | Value |
|---|---|---|
| Density | 20.0 °C | Density of 7.83 g/cm³ |
DIN 17172 Grade StE320.7 hot finished 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 | - |
DIN 17172 Grade StE320.7 hot finished chemical
| Property | Value |
|---|---|
| Aluminium | Aluminium of 0.02 % |
| Carbon | Carbon of 0.22 % |
| Manganese | Manganese of 0.7 - 1.3 % |
| Phosphorus | Phosphorus of 0.04 % |
| Silicon | Silicon of 0.45 % |
| Sulfur | Sulfur of 0.035 % |
DIN 17172 Grade StE320.7 hot finished magnetic
| Property | Value | Comment |
|---|---|---|
| Curie temperature | Curie temperature of 770 °C | Typical for Low Carbon Steel |
DIN 17172 Grade StE320.7 hot finished 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 |
DIN 17172 Grade StE320.7 hot finished 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, 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 460 - 580 MPa | - |
| Tensile strength, transverse | 20.0 °C | Tensile strength, transverse of 460 - 580 MPa | - |
| Yield strength | 20.0 °C | Yield strength of 320 MPa | - |
| Yield strength, transverse | 20.0 °C | Yield strength, transverse of 320 MPa | - |
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