C10E vs S355J0: 52% composition overlap. Moderate differences, generally not direct substitutes.
C10E vs S355J0
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.
S355J0
1.0553
Non-alloy structural steel with 355 MPa min yield and 27J impact at 0°C. The "J0" variant between JR (+20°C) and J2 (-20°C). Former designation St52-3U (DIN 17100). Good weldability (CEV ≤0.47). Used for bridges, cranes, buildings, wind turbines, heavy machinery frames, and general structural applications requiring moderate low-temperature toughness.
| C10E | S355J0 | |
|---|---|---|
| Material Number | 1.1121 | 1.0553 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10084 | EN 10025-2 |
Chemical composition (wt%)
| Element | C10E | S355J0 | Overlap |
|---|---|---|---|
| C | 0.07–0.13% | 0–0.22% | OK |
| Si | 0–0.4% | 0–0.55% | OK |
| Mn | 0.3–0.6% | 0–1.6% | OK |
| P | 0–0.025% | 0–0.035% | OK |
Mechanical properties
| Property | C10E | S355J0 | Unit |
|---|---|---|---|
| tensile_strength | 310–440 | 470–630 | MPa |
| yield_strength | 180–220 | ≥ 355 | MPa |
| elongation | 28–35 | ≥ 22 | % |
Compatibility Assessment
C10E and S355J0 have moderate differences (52% 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 S355J0?
C10E and S355J0 have a 52% composition overlap. They are generally not directly interchangeable.
Can I replace C10E with S355J0?
Generally not recommended. The compositions differ significantly (52% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C10E and S355J0?
The main differences are in the following elements: overall alloying content. C10E is a Carbon Steel grade, while S355J0 is a Carbon Steel grade.
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Data provided for reference only. Always verify against the applicable specification for critical applications.
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