C15E vs S700MC: 48% composition overlap. Significantly different materials serving different application areas.
C15E vs S700MC
Side-by-side chemical composition and mechanical property comparison.
Overview
C15E
1.1141
Low-carbon unalloyed case hardening steel — 0.12-0.18% C. Between C10E (softer core) and C22E (harder core) in the case-hardening range. Good balance of surface hardness (HRC 58-62) and core toughness after carburizing. Modern designation for Ck15. Used for small gears, pins, bushings, levers, and carburized parts where moderate core strength is acceptable. Also used for cold forming and deep drawing.
S700MC
1.8974
The highest-strength grade in the EN 10149-2 HSLA series. 700 MPa yield with good cold formability. TMCP for ultra-fine grain structure. Used for telescopic cranes, truck frame rails, dirt-moving equipment, farm equipment, and any application requiring maximum weight reduction in cold-formed steel.
| C15E | S700MC | |
|---|---|---|
| Material Number | 1.1141 | 1.8974 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10084 | EN 10149-2 |
Chemical composition (wt%)
| Element | C15E | S700MC | Overlap |
|---|---|---|---|
| C | 0.12–0.18% | 0–0.12% | Partial |
| Si | 0–0.4% | 0–0.6% | OK |
| Mn | 0.3–0.6% | 0–2.1% | OK |
| P | 0–0.025% | 0–0.025% | OK |
Mechanical properties
| Property | C15E | S700MC | Unit |
|---|---|---|---|
| tensile_strength | 350–490 | 750–950 | MPa |
| yield_strength | 210–260 | ≥ 700 | MPa |
| elongation | 25–32 | ≥ 12 | % |
Compatibility Assessment
C15E and S700MC have significantly different compositions (48% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C15E the same as S700MC?
C15E and S700MC have a 48% composition overlap. They are generally not directly interchangeable.
Can I replace C15E with S700MC?
Generally not recommended. The compositions differ significantly (48% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C15E and S700MC?
The main differences are in the following elements: C. C15E is a Carbon Steel grade, while S700MC 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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