ASTM A588 (Corten) vs C10E: 32% composition overlap. Significantly different materials serving different application areas.
ASTM A588 (Corten) vs C10E
Side-by-side chemical composition and mechanical property comparison.
Overview
ASTM A588 (Corten)
High-strength low-alloy weathering steel. Forms a stable protective rust patina eliminating the need for paint. Cu-Cr-Ni-V composition provides 4-8x atmospheric corrosion resistance vs carbon steel. Used for unpainted bridges, architectural facades, sculptures, outdoor structures, and freight cars.
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.
| ASTM A588 (Corten) | C10E | |
|---|---|---|
| Material Number | — | 1.1121 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10084 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | C10E | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0.07–0.13% | OK |
| Si | 0.3–0.65% | 0–0.4% | Partial |
| Mn | 0.8–1.25% | 0.3–0.6% | No overlap |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | C10E | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 310–440 | MPa |
| yield_strength | ≥ 345 | 180–220 | MPa |
| elongation | ≥ 18 | 28–35 | % |
Compatibility Assessment
ASTM A588 (Corten) and C10E have significantly different compositions (32% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is ASTM A588 (Corten) the same as C10E?
ASTM A588 (Corten) and C10E have a 32% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with C10E?
Generally not recommended. The compositions differ significantly (32% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and C10E?
The main differences are in the following elements: Si, Mn. ASTM A588 (Corten) is a Carbon Steel grade, while C10E is a Carbon Steel grade.
Related Comparisons
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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.