EN 10028-3 Grade P275NH
EN 10028-3 Grade P275NH introduction
Steels for pressure vessels and boilers differ from other carbon-manganese structural steels due to their high resistance to pressure at all temperatures (ambient, low or high). The fundamental property of steels for pressure vessels is their ability to withstand high pressure at different temperatures. They have good weldability, as well as excellent toughness, and are suitable for normalisation annealing and stress-relief annealing (both treatments neutralise local hardening caused by welding).
EN 10028-3 Grade P275NH general
| Property | Value |
|---|---|
| Dimensions | For Pickled products, please contact the supplier. Please feel free to check the figure on the right side of the material page for more details. |
EN 10028-3 Grade P275NH chemical
| Property | Value | Comment |
|---|---|---|
| Aluminium | Aluminium of 0.02 % | min. |
| Carbon | Carbon of 0.16 % | max. |
| Chromium | Chromium of 0.3 % | max. |
| Copper | Copper of 0.3 % | max. |
| Manganese | Manganese of 0.8 - 1.5 % | - |
| Molybdenum | Molybdenum of 0.08 % | max. |
| Nickel | Nickel of 0.5 % | max. |
| Niobium | Niobium of 0.05 % | max. |
| Nitrogen | Nitrogen of 0.012 % | max. |
| Phosphorus | Phosphorus of 0.025 % | max. |
| Silicon | Silicon of 0.4 % | max. |
| Sulfur | Sulfur of 0.01 % | max. |
| Titanium | Titanium of 0.03 % | max. |
| Vanadium | Vanadium of 0.05 % | max. |
EN 10028-3 Grade P275NH mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Charpy impact energy | -20 °C | Charpy impact energy of 30 J | min. | for thickness 6-16 mm | Transverse |
| - | -20 °C | Charpy impact energy of 45 J | min. | for thickness 6-16 mm |
| - | 0 °C | Charpy impact energy of 40 J | min. | for thickness 6-16 mm | Transverse |
| - | 0 °C | Charpy impact energy of 65 J | min. | for thickness 6-16 mm |
| - | 20 °C | Charpy impact energy of 50 J | min. | for thickness 6-16 mm | Transverse |
| - | 20 °C | Charpy impact energy of 75 J | min. | for thickness 6-16 mm |
| Elongation | - | Elongation of 19 % | min. | for thickness 1.5-3 mm | Transverse, A80 |
| - | - | Elongation of 24 % | min. A5.65√So | for thickness 3-16 mm | Transverse |
| Tensile strength | - | Tensile strength of 390 - 510 MPa | for thickness 1.5-16 mm | Transverse |
| Yield strength | - | Yield strength of 275 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 50 °C | Yield strength of 266 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 100 °C | Yield strength of 250 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 150 °C | Yield strength of 232 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 200 °C | Yield strength of 213 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 250 °C | Yield strength of 195 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 300 °C | Yield strength of 179 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 350 °C | Yield strength of 166 MPa | min. | for thickness 1.5-16 mm | Transverse |
| - | 400 °C | Yield strength of 156 MPa | min. | for thickness 1.5-16 mm | Transverse |
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