C22E vs C45: 47% composition overlap. Significantly different materials serving different application areas.
C22E vs C45
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.
C45
1.0503
Medium carbon unalloyed quality steel. Good machinability and moderate strength after heat treatment. Widely used for shafts, spindles, pins, studs, and general machine parts.
| C22E | C45 | |
|---|---|---|
| Material Number | 1.1151 | 1.0503 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10083-2 | EN 10083-2 |
Chemical composition (wt%)
| Element | C22E | C45 | Overlap |
|---|---|---|---|
| C | 0.17–0.24% | 0.42–0.5% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.4–0.7% | 0.5–0.8% | Partial |
| P | 0–0.025% | 0–0.03% | OK |
Mechanical properties
| Property | C22E | C45 | Unit |
|---|---|---|---|
| tensile_strength | 410–540 | 630–780 | MPa |
| yield_strength | 240–280 | ≥ 370 | MPa |
| elongation | 22–28 | ≥ 16 | % |
Compatibility Assessment
C22E and C45 have significantly different compositions (47% 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 C45?
C22E and C45 have a 47% composition overlap. They are generally not directly interchangeable.
Can I replace C22E with C45?
Generally not recommended. The compositions differ significantly (47% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C22E and C45?
The main differences are in the following elements: C, Mn. C22E is a Carbon Steel grade, while C45 is a Carbon Steel grade.
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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.