C22E vs C75: 54% composition overlap. Moderate differences, generally not direct substitutes.
C22E vs C75
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.
C75
1.0605
High-carbon unalloyed spring steel. Near-eutectoid composition (0.70-0.80% C). Excellent elastic properties after hardening and tempering. Limited hardenability — effective oil quench diameter ≤12mm. Cost-effective for small/medium springs. Used for spring wire, clock springs, saw blades, retaining rings, and precision strip springs. ≈ AISI 1075.
| C22E | C75 | |
|---|---|---|
| Material Number | 1.1151 | 1.0605 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10083-2 | EN 10132-4 |
Chemical composition (wt%)
| Element | C22E | C75 | Overlap |
|---|---|---|---|
| C | 0.17–0.24% | 0.7–0.8% | No overlap |
| Si | 0–0.4% | 0.15–0.35% | OK |
| Mn | 0.4–0.7% | 0.6–0.9% | Partial |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | C22E | C75 | Unit |
|---|---|---|---|
| tensile_strength | 410–540 | 850–1100 | MPa |
| yield_strength | 240–280 | 500–700 | MPa |
| elongation | 22–28 | 8–12 | % |
Compatibility Assessment
C22E and C75 have moderate differences (54% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C22E the same as C75?
C22E and C75 have a 54% composition overlap. They are generally not directly interchangeable.
Can I replace C22E with C75?
Generally not recommended. The compositions differ significantly (54% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C22E and C75?
The main differences are in the following elements: C, Mn. C22E is a Carbon Steel grade, while C75 is a Carbon Steel grade.
Related Comparisons
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.