C10E vs C35E: 64% composition overlap. Moderate differences, generally not direct substitutes.
C10E vs C35E
Side-by-side chemical composition and mechanical property comparison.
Overview
C10E
1.1121
Lowest practical carbon case-hardening steel — 0.07-0.13% C. After carburizing: hard surface (HRC 55-60) with extremely soft, tough core (HRC 15-20). Maximum impact absorption. Modern designation for Ck10. Used for pins, bushings, small gears, camshaft lobes, and any carburized part where maximum core toughness and ductility are critical. Also used as cold-heading and deep-drawing wire/strip.
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.
| C10E | C35E | |
|---|---|---|
| Material Number | 1.1121 | 1.1181 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10084 | EN 10083-2 |
Chemical composition (wt%)
| Element | C10E | C35E | Overlap |
|---|---|---|---|
| C | 0.07–0.13% | 0.32–0.39% | No overlap |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0.3–0.6% | 0.5–0.8% | Partial |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | C10E | C35E | Unit |
|---|---|---|---|
| tensile_strength | 310–440 | 630–780 | MPa |
| yield_strength | 180–220 | 370–460 | MPa |
| elongation | 28–35 | 17–22 | % |
Compatibility Assessment
C10E and C35E have moderate differences (64% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C10E the same as C35E?
C10E and C35E have a 64% composition overlap. They are generally not directly interchangeable.
Can I replace C10E with C35E?
Generally not recommended. The compositions differ significantly (64% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C10E and C35E?
The main differences are in the following elements: C, Mn. C10E 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.