16Mo3 vs P355NL: 33% composition overlap. Significantly different materials serving different application areas.
16Mo3 vs P355NL
Side-by-side chemical composition and mechanical property comparison.
Overview
16Mo3
1.5415
Molybdenum-alloyed pressure vessel steel — THE European Mo-Kesselblech. Mo 0.25-0.35% improves creep resistance and elevated-temperature strength to ~500°C (higher than P265GH at ~400°C). Used for superheater tubes, boiler drums, steam piping, and heat exchangers in power generation. EN 10028-2 + PED.
P355NL
1.0566
Normalized 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.
| 16Mo3 | P355NL | |
|---|---|---|
| Material Number | 1.5415 | 1.0566 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10028-2 | EN 10028-3 |
Chemical composition (wt%)
| Element | 16Mo3 | P355NL | Overlap |
|---|---|---|---|
| C | 0.12–0.2% | 0–0.18% | Partial |
| Si | 0–0.35% | 0–0.5% | OK |
| Mn | 0.4–0.9% | 1–1.7% | No overlap |
| P | 0–0.025% | — | — |
Mechanical properties
| Property | 16Mo3 | P355NL | Unit |
|---|---|---|---|
| tensile_strength | 440–590 | 490–630 | MPa |
| yield_strength | ≥ 275 | ≥ 355 | MPa |
| elongation | ≥ 22 | ≥ 20 | % |
Compatibility Assessment
16Mo3 and P355NL have significantly different compositions (33% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is 16Mo3 the same as P355NL?
16Mo3 and P355NL have a 33% composition overlap. They are generally not directly interchangeable.
Can I replace 16Mo3 with P355NL?
Generally not recommended. The compositions differ significantly (33% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between 16Mo3 and P355NL?
The main differences are in the following elements: C, Mn. 16Mo3 is a Carbon Steel grade, while P355NL is a Carbon Steel grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.