C22E vs P355NL: 28% composition overlap. Significantly different materials serving different application areas.
C22E vs P355NL
Side-by-side chemical composition and mechanical property comparison.
Overview
C22E
1.1151
Low-carbon unalloyed steel for case hardening and general engineering — 0.17-0.24% C. After carburizing: surface HRC 55-60, soft tough core. Much cheaper than alloy case-hardening steels (16MnCr5, 20MnCr5). Modern designation for Ck22. Used for pins, bolts, levers, lightly loaded gears, and any carburized part where alloy additions are not justified. Also used as cold-heading wire.
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.
| C22E | P355NL | |
|---|---|---|
| Material Number | 1.1151 | 1.0566 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10083-2 | EN 10028-3 |
Chemical composition (wt%)
| Element | C22E | P355NL | Overlap |
|---|---|---|---|
| C | 0.17–0.24% | 0–0.18% | Partial |
| Si | 0–0.4% | 0–0.5% | OK |
| Mn | 0.4–0.7% | 1–1.7% | No overlap |
| P | 0–0.025% | — | — |
Mechanical properties
| Property | C22E | P355NL | Unit |
|---|---|---|---|
| tensile_strength | 410–540 | 490–630 | MPa |
| yield_strength | 240–280 | ≥ 355 | MPa |
| elongation | 22–28 | ≥ 20 | % |
Compatibility Assessment
C22E and P355NL have significantly different compositions (28% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C22E the same as P355NL?
C22E and P355NL have a 28% composition overlap. They are generally not directly interchangeable.
Can I replace C22E with P355NL?
Generally not recommended. The compositions differ significantly (28% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C22E and P355NL?
The main differences are in the following elements: C, Mn. C22E 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.