EN 10025-3 Grade S275N is a normalized/normalized rolled structural steel plate that belongs to the European standard EN 10025-3. It is primarily used in construction and engineering industries. S275N offers good weldability, machinability, and high durability.
The "S" in S275N stands for structural steel, while "275" represents the minimum yield strength of 275 megapascals (MPa). The letter "N" indicates that the steel is supplied in normalized condition, which means it has undergone a controlled heating and cooling process to improve its mechanical properties.
This grade is suitable for various applications, including building structures, bridges, machinery frames, and support structures. It exhibits good toughness and resistance to brittle fracture, making it suitable for low-temperature environments.
EN 10025-3 Grade S275N conforms to the European Standard EN 10025-3:2004, which specifies technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels. It is important to consult the relevant standards and specifications for detailed mechanical and chemical properties, as well as any specific requirements for your intended application.
EN 10025-3 Grade S275N, when designated with "+N" (normalized or normalized formed), indicates that the steel plate has undergone a normalizing process during manufacturing. The normalization treatment involves heating the steel to a specific temperature and then allowing it to cool in still air.
Normalizing improves the mechanical properties of the steel, including its toughness, ductility, and impact strength. It also refines the grain structure, resulting in a more uniform and consistent material with reduced internal stresses.
The addition of "+N" to the grade designation signifies that the steel plate is supplied in the normalized condition. This means that the material has been subjected to the normalizing process to achieve the desired properties.
EN 10025-3 Grade S275N normalized or normalized formed (+N) is commonly used in structural applications, such as building construction, bridges, and machinery components. It provides good weldability and high strength while maintaining adequate toughness.
The unalloyed, normalised/normalising rolled quality steel S275N is a weldable fine-grained steel with a min. yield point of 275 N/mm². The steel is applicated in normalized condition for several types of welded constructions such as fixed and movable storage container, high-pressure pipes, bridge and load-bearing constructions etc.
Cold forming: Suitability for cold bending, folding, cold flanging or cold welting has to be agreed. For sheet, strip and wide flat steel in normalized condition, for nominal thickness (s) up to 16 mm can be warranted the following bending radius values:
longitudinal: 2,5 x s
transverse: 2,0 x s
Sheet and strip of nominal thicknesses
| Property | Value | Comment |
|---|---|---|
| Density |
7.8 - 7.9 g/cm³
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|
Typical for Low Carbon Steel |
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
| Elastic modulus |
200 - 215 GPa
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|
Typical for Low Carbon Steel | ||||
| Elongation |
18.2 %
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|
Predicted Value, A200 | ||||
|
19.3 %
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Predicted Value, A80 | |||||
|
20.1 %
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Predicted Value, A80 Transverse | |||||
|
21.2 %
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|
Predicted Value, A5 | |||||
|
22.6 %
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Predicted Value, Transverse | |||||
|
25.5 %
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|
Predicted Value, A50 | |||||
| 20 °C |
22 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Flat | ||
| 20 °C |
23 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire | ||
| 20 °C |
24 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| Hardness, Brinell |
243 [-]
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|
Predicted Value, Transverse | ||||
| Poisson's ratio |
0.29 [-]
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Typical for Low Carbon Steel | ||||
| Reduction of area |
43.2 %
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Predicted Value, Transverse | ||||
|
52.0 %
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|
Predicted Value | |||||
| Shear modulus |
82 GPa
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|
Typical for Low Carbon Steel | ||||
| Shear strength |
531 MPa
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|
Predicted Value | ||||
| Tensile strength | 20 °C |
340 - 470 MPa
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normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Flat | |
| 20 °C |
350 - 510 MPa
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normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
350 - 480 MPa
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normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
370 - 510 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
370 - 480 MPa
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normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| Yield strength |
251.6 MPa
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Predicted Value, RP1 | ||||
|
317.2 MPa
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Predicted Value, RP02 | |||||
|
317.9 MPa
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Predicted Value, RP1 Transverse | |||||
|
319.8 MPa
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Predicted Value, Transverse | |||||
|
391.5 MPa
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Predicted Value, RP05 | |||||
|
453.7 MPa
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Predicted Value, RP002 | |||||
|
461.6 MPa
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Predicted Value, RP02 Transverse | |||||
| 20 °C |
205 MPa
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire | ||
| 20 °C |
215 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Flat, Strip, Rod, Wire | ||
| 20 °C |
225 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
235 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
245 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
255 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
265 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire | ||
| 20 °C |
275 MPa
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat, Rod, Wire |
| Property | Value | Comment |
|---|---|---|
| Coefficient of thermal expansion |
1.32e-05 - 1.38e-05 1/K
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|
Typical for Low Carbon Steel |
| Max service temperature |
332 °C
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|
Predicted Value, Long |
|
500 °C
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|
Typical for Carbon Steel | |
| Melting point |
1480 - 1526 °C
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|
Typical for Low Carbon Steel |
| Specific heat capacity |
465 J/(kg·K)
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|
Typical for Low Carbon Steel |
| Thermal conductivity |
25 - 93 W/(m·K)
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|
Typical for Low Carbon Steel |
| Property | Value | Comment |
|---|---|---|
| Electrical conductivity |
6 S/m
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|
Predicted Value |
| Electrical resistivity |
1.43e-07 - 1.74e-07 Ω·m
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Typical for Carbon Steel |
| Property | Value | Comment |
|---|---|---|
| Curie temperature |
770 °C
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|
Typical for Low Carbon Steel |
| Property | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|
| Aluminium |
0.02 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Carbon |
0.18 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Chromium |
0.3 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Copper |
0.35 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat |
|
0.55 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire | |
| Manganese |
0.5 - 1.5 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire |
|
0.5 - 1.4 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat | |
| Molybdenum |
0.1 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Nickel |
0.3 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Niobium |
0.05 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Nitrogen |
0.015 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Phosphorus |
0.03 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire |
|
0.035 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat | |
| Silicon |
0.4 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Sulfur |
0.025 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire |
|
0.03 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat | |
| Titanium |
0.03 %
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|
normalized or normalized formed (+N) | EN 10113-2, EN 10025-3 | Sheet, Strip, Bar, Flat |
|
0.05 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire | |
| Vanadium |
0.05 %
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|
normalized or normalized formed (+N) | EN 10025-3, EN 10113-2 | Strip, Sheet, Flat, Rod, Wire, Bar |
| Property | ||
|---|---|---|
| Supplier Disclaimer | The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information. | |