C15E vs P355GH: 61% composition overlap. Moderate differences, generally not direct substitutes.
C15E vs P355GH
Side-by-side chemical composition and mechanical property comparison.
Overview
C15E
1.1141
Low-carbon unalloyed case hardening steel — 0.12-0.18% C. Between C10E (softer core) and C22E (harder core) in the case-hardening range. Good balance of surface hardness (HRC 58-62) and core toughness after carburizing. Modern designation for Ck15. Used for small gears, pins, bushings, levers, and carburized parts where moderate core strength is acceptable. Also used for cold forming and deep drawing.
P355GH
1.0473
Higher-strength pressure vessel steel — ReH >=355 MPa, guaranteed elevated-temperature properties. Between P265GH and 16Mo3 in the pressure vessel hierarchy. Used for boilers, steam drums, heat exchangers, and pressure piping operating to ~400°C. EN 10028-2, PED 2014/68/EU compliant. Good weldability.
| C15E | P355GH | |
|---|---|---|
| Material Number | 1.1141 | 1.0473 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10084 | EN 10028-2 |
Chemical composition (wt%)
| Element | C15E | P355GH | Overlap |
|---|---|---|---|
| C | 0.12–0.18% | 0–0.22% | OK |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.3–0.6% | 0–1.6% | OK |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | C15E | P355GH | Unit |
|---|---|---|---|
| tensile_strength | 350–490 | 490–630 | MPa |
| yield_strength | 210–260 | ≥ 355 | MPa |
| elongation | 25–32 | ≥ 20 | % |
Compatibility Assessment
C15E and P355GH have moderate differences (61% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C15E the same as P355GH?
C15E and P355GH have a 61% composition overlap. They are generally not directly interchangeable.
Can I replace C15E with P355GH?
Generally not recommended. The compositions differ significantly (61% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C15E and P355GH?
The main differences are in the following elements: overall alloying content. C15E is a Carbon Steel grade, while P355GH 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.