Description of EN 1.0566 / P355NL 1.0566 Steel
P355NL steel is a fine-grain, low-alloy steel composed of high carbon and minimal sulphur. Used in applications requiring high tensile strength, most commonly for pressurised systems and boilers.
We supply EN 1.0566 P355NL Steel in thicknesses from 6mm to 550mm.
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Mechanical Properties of Steel P355NL
Mechanical Properties of Steel P355NL- The mechanical properties of this steel make it ideal for use in pressure vessels and boilers, in that it has high tensile strength, good crack resistance and high corrosion resistance.
- Tensile Strength is between 450-630 MPa, depending on thickness
- Yield Strength 295 – 355 N/mm2 depending on thickness.
P355NL Chemical Composition
This steel grade is a low alloy mix composed of high carbon and minimal sulphur.
| C % max. | S % max. | Mn % max. | P % max. | Si % max. | Al % max. | N % max. | Cr % max. | Cu% max. | Mo % max. | Nb % max. | Ni % max. | Ti % max. | V % max. |
| 0.18 | 0.008 | 1.70 | 0.025 | 0.50 | 0.020 | 0.012 | 0.30 | 0.30 | 0.08 | 0.05 | 0.50 | 0.03 | 0.10 |
Cast analysis, % by mass. Other elements and differences in particular P355NL products will be detailed in the documentation.
EN 1.0566 P355NL Typical Applications
Long and flat products of steel grade P355NL are typically used for flanges, pipe fitting, petrochemical use and pressure vessel manufacturing. They are ideal for use in low-temperature settings
We supply and process steel grade EN10025 – P355NL for several markets and industries, including:
- Automotive
- Plumbing and Utilities
- Petrochemical
- Pressure Vessel Manufacture
We carry a broad steel range, carrying 3000 tonnes of stock at any time. We supply EN 1.0566 P355NL in thicknesses from 6mm-120mm.
P355NL: Other Classifications
| Country/Region | Steel Grade |
| DE | TStE355 |
| FR | A510AP, A510FP1, A530AP, E355FP |
| UK | BS 224Gr.490, 50ee |
| EU | P355NL1 |
| SWE | 2107 |
| US | A737Gr.B |
