EN 10028-3 Grade P355NH
EN 10028-3 Grade P355NH 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 P355NH 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 P355NH chemical
| Property | Value | Comment |
|---|---|---|
| Aluminium | Aluminium of 0.02 % | min. |
| Carbon | Carbon of 0.18 % | max. |
| Chromium | Chromium of 0.3 % | max. |
| Copper | Copper of 0.3 % | max. |
| Manganese | Manganese of 1.1 - 1.7 % | - |
| 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 0.5 % | max. |
| Sulfur | Sulfur of 0.01 % | max. |
| Titanium | Titanium of 0.03 % | max. |
| Vanadium | Vanadium of 0.05 % | max. |
EN 10028-3 Grade P355NH 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 18 % | min. | for thickness 1.7-3 mm | Transverse, A80 |
| - | - | Elongation of 22 % | min. A5.65√So | for thickness 3-16 mm | Transverse |
| Tensile strength | - | Tensile strength of 490 - 630 MPa | for thickness 1.7-16 mm | Transverse |
| Yield strength | - | Yield strength of 355 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 50 °C | Yield strength of 343 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 100 °C | Yield strength of 323 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 150 °C | Yield strength of 299 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 200 °C | Yield strength of 275 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 250 °C | Yield strength of 252 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 300 °C | Yield strength of 232 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 350 °C | Yield strength of 214 MPa | min. | for thickness 1.7-16 mm | Transverse |
| - | 400 °C | Yield strength of 202 MPa | min. | for thickness 1.7-16 mm | Transverse |
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