EN 10028-3 P355NL1 Carbon Steel Plate
P355NL1 steel plate is the European standard pressure vessel steel plate, the implementation of the European standard EN10028 production, steel plate steelmaking by converter smelting or electric furnace refining fine grain sedentary steel, P355NL1 has fatigue resistance, but also has a low temperature performance as well as high yield strength and toughness.P355NL1 steel plate plate number indicates: "P ": indicates that the European standard container plate; "355": indicates that the minimum yield strength of steel plate is 355, unit MPa; "NL1": indicates that the steel plate is a special low-temperature quality grade steel.
EN10028-3 p355NL1 vessel plate chemical composition
| Grade | C max | Si max | Mn. max | P max | S max | N max | AL min | Cr max | Cu max | Mo max | Ni max | Nb max | Ti max | V max |
| P355NL1 | 0.18 | 0.50 | 1.10-1.70 | 0.025 | 0.015 | 0.012 | 0.020 | 0.300 | 0.30 | 0.08 | 0.50 | 0.05 | 0.03 | 0.10 |
EN10028-3 P355NL1 pressure vessel steel plate mechanical property
| Thickness(mm) | Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% |
| T≤16 | 355 | 490-630 | 22 |
| 16<T≤40 | 345 | ||
| 40<T≤60 | 335 | ||
| 60<T≤100 | 315 | 470-610 | 21 |
| 100<T≤150 | 305 | 460-600 | |
| 150<T | 295 | 450-590 |
EN10028-3 P355NL1 pressure vessel plate material physical property
| Quantity | Value | Unit |
|---|---|---|
| Thermal expansion | 16 - 17 | e-6/K |
| Thermal conductivity | 16 - 16 | W/m.K |
| Specific heat | 500 - 500 | J/kg.K |
| Melting temperature | 1370 - 1400 | °C |
| Service temperature | 0 - 500 | °C |
| Density | 8000 - 8000 | kg/m3 |
| Resistivity | 0.7 - 0.7 | Ohm.mm2/m |
EN10028-3 P355NL1 boiler steel plate production process
Production process: Primary refining → LF refining → VD treatment → continuous casting (die casting) → cleaning, heating → rolling → (stacking) → surface inspection → batching → flaw detection → heat treatment → cutting and sampling → performance inspection → storage.
EN10028-3 P355NL1 pressure vessel steel plate application
Widely used in: separators, ball tanks, oil and gas tanks, liquefied gas tanks, petroleum, nuclear energy reactor pressure shell, boiler ladle, chemical industry, power station, boiler and other industries, for the production of reactors, heat exchangers, hydropower station high-pressure water pipe, turbine worm shells and other equipment and components.
EN10028-3 vessel steel plate Products image
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