P355NL
1.0566Normalized pressure vessel steel with low-temperature toughness — ReH >=355 MPa, Charpy at -40°C (KV >=27J). "NL" = Normalized + Low-temperature. Used for pressure vessels, storage tanks, and process equipment operating in cold environments (LPG, cryogenic). EN 10028-3 + PED compliant.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | P355NL1 / 1.0566 | 1.0566 | 100% |
Sources: EN 10028-3
Chemical composition comparison (wt%)
Side-by-side: P355NL (EN 10028-3) vs P355NL1 / 1.0566 (EN) (EN 10028-3)
| Element | P355NL (EN 10028-3) | P355NL1 / 1.0566 (EN) | Overlap |
|---|---|---|---|
| C | — | 0–0.18% | — |
| Si | — | 0–0.5% | — |
Mechanical properties
Compatibility verdict
P355NL and P355NL1 / 1.0566: 100% composition match
Related materials
C45
1.0503Medium carbon unalloyed quality steel. Good machinability and moderate strength after heat treatment. Widely used for shafts, spindles, pins, studs, and general machine parts.
S355JR
1.0045High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
S235JR
1.0038General-purpose structural steel with minimum yield strength of 235 MPa. The most common structural steel grade in Europe for general construction, frames, and non-critical structural applications.
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