C10E vs S690Q: 44% composition overlap. Significantly different materials serving different application areas.
C10E vs S690Q
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.
S690Q
1.8928
High-strength quenched and tempered structural steel — YS 690 MPa min. Part of EN 10025-6 series (S500Q to S960Q). Good weldability despite high strength (CEV controlled). Used for mobile cranes, mining equipment, truck chassis, bridge components, and any structure where weight reduction through higher strength is critical. "Q" = quenched, "L" variants add low-temp impact.
| C10E | S690Q | |
|---|---|---|
| Material Number | 1.1121 | 1.8928 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10084 | EN 10025-6 |
Chemical composition (wt%)
| Element | C10E | S690Q | Overlap |
|---|---|---|---|
| C | 0.07–0.13% | 0–0.2% | OK |
| Si | 0–0.4% | 0–0.8% | OK |
| Mn | 0.3–0.6% | 0–1.7% | OK |
| P | 0–0.025% | 0–0.02% | OK |
Mechanical properties
| Property | C10E | S690Q | Unit |
|---|---|---|---|
| tensile_strength | 310–440 | 770–940 | MPa |
| yield_strength | 180–220 | ≥ 690 | MPa |
| elongation | 28–35 | ≥ 14 | % |
Compatibility Assessment
C10E and S690Q have significantly different compositions (44% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is C10E the same as S690Q?
C10E and S690Q have a 44% composition overlap. They are generally not directly interchangeable.
Can I replace C10E with S690Q?
Generally not recommended. The compositions differ significantly (44% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between C10E and S690Q?
The main differences are in the following elements: overall alloying content. C10E is a Carbon Steel grade, while S690Q 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.