C22E vs C35E: 70% composition overlap. Some similarities but notable differences in alloying elements.
C22E vs C35E
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.
C35E
1.1181
Mid-carbon unalloyed Q&T steel — 0.32-0.39% C. Good balance between strength and toughness/weldability. Modern designation for Ck35. Used for moderately loaded shafts, axles, bolts, connecting rods, and machine parts where C45 would be too hard and C22E too soft. Also suitable for surface hardening (flame/induction) to HRC 50-55.
| C22E | C35E | |
|---|---|---|
| Material Number | 1.1151 | 1.1181 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10083-2 | EN 10083-2 |
Chemical composition (wt%)
| Element | C22E | C35E | Overlap |
|---|---|---|---|
| C | 0.17–0.24% | 0.32–0.39% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.4–0.7% | 0.5–0.8% | Partial |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | C22E | C35E | Unit |
|---|---|---|---|
| tensile_strength | 410–540 | 630–780 | MPa |
| yield_strength | 240–280 | 370–460 | MPa |
| elongation | 22–28 | 17–22 | % |
Compatibility Assessment
C22E and C35E share some characteristics (70% overlap) but have notable differences. They may be substitutable in some applications but not all. Verify suitability carefully.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C22E the same as C35E?
C22E and C35E have a 70% composition overlap. For most purposes, they can be considered similar.
Can I replace C22E with C35E?
In many cases, yes. The compositions overlap significantly (70%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between C22E and C35E?
The main differences are in the following elements: C, Mn. C22E is a Carbon Steel grade, while C35E 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.