P355NL2
P355NL2 is a low-temperature-tough fine-grain steel for pressure applications at low temperatures – with guaranteed impact toughness down to −50 °C.
Application & properties
P355NL2 is a low-temperature-tough fine-grain steel for pressure applications at low temperatures – with guaranteed impact toughness down to −50 °C.
- Pressure vessels and piping at low temperatures
- Refrigeration and low-temperature plants
- LPG and process plants
Chemical composition
Typical values in wt.-% per EN standard (heat analysis).
| Element | Content (%) |
|---|---|
| C | ≤ 0.18 |
| Si | ≤ 0.50 |
| Mn | 0.90–1.65 |
| P | ≤ 0.020 |
| S | ≤ 0.010 |
| Ni | ≤ 0.50 |
Mechanical properties
Typical values at room temperature per EN standard.
| Property | Value |
|---|---|
| Yield strength Rp0.2 (t ≤ 16 mm) | ≥ 355 MPa |
| Tensile strength Rm | 490–630 MPa |
| Elongation A | ≥ 22 % |
| Impact energy KV (−50 °C) | ≥ 27 J |
Standards, equivalents & product forms
| Topic | Detail |
|---|---|
| Standards | EN 10028-3, EN 10216-4 |
| ASME/ASTM equivalent | ~ ASTM A333 / A537 |
| Material no. | 1.0566 |
| Short name / aka | Feinkornbaustahl · Tieftemperatur |
We supply P355NL2 as pipes, flanges and fittings – seamless or welded, on request with an EN 10204 3.1 / 3.2 mill certificate.
Frequently asked questions about P355NL2
What does NL2 mean in P355NL2?
N stands for normalised, L for low-temperature toughness and 2 for the higher toughness class (impact energy at −50 °C).
When to use P355NL2?
For pressurised applications at low service temperatures to avoid brittle fracture.
Request P355NL2?
Grade, standard, size, pressure rating and quantity are enough – on request with an EN 10204 3.1 / 3.2 mill certificate. Your quote usually the same day.
All data are typical values per the relevant EN standards for first orientation – without warranty. The applicable standard and the mill certificate of the delivery are decisive.