EN 10028-3 Grade P355NL2
EN 10028-3 Grade P355NL2 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 P355NL2 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 P355NL2 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 0.02 % | max. |
| Silicon | Silicon of 0.5 % | max. |
| Sulfur | Sulfur of 0.005 % | max. |
| Titanium | Titanium of 0.03 % | max. |
| Vanadium | Vanadium of 0.05 % | max. |
EN 10028-3 Grade P355NL2 mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
| Charpy impact energy | -50 °C | Charpy impact energy of 27 J | min. | for thickness 6-16 mm | Transverse |
| - | -50 °C | Charpy impact energy of 42 J | min. | for thickness 6-16 mm |
| - | -40 °C | Charpy impact energy of 30 J | min. | for thickness 6-16 mm | Transverse |
| - | -40 °C | Charpy impact energy of 45 J | min. | for thickness 6-16 mm |
| - | -20 °C | Charpy impact energy of 40 J | min. | for thickness 6-16 mm | Transverse |
| - | -20 °C | Charpy impact energy of 55 J | min. | for thickness 6-16 mm |
| - | 0 °C | Charpy impact energy of 60 J | min. | for thickness 6-16 mm | Transverse |
| - | 0 °C | Charpy impact energy of 75 J | min. | for thickness 6-16 mm |
| - | 20 °C | Charpy impact energy of 70 J | min. | for thickness 6-16 mm | Transverse |
| - | 20 °C | Charpy impact energy of 85 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 |
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