ASTM A588 (Corten) vs S355NL: 58% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A588 (Corten) vs S355NL
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.
S355NL
1.0546
Normalized fine-grain structural steel with 355 MPa yield and -50°C impact toughness. The most widely used fine-grain grade in EN 10025-3. Workhorse for offshore, bridges, cranes, and wind turbine towers in cold climates. Better low-temp toughness than S355J2.
| ASTM A588 (Corten) | S355NL | |
|---|---|---|
| Material Number | — | 1.0546 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10025-3 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | S355NL | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0–0.18% | OK |
| Si | 0.3–0.65% | 0–0.5% | Partial |
| Mn | 0.8–1.25% | 1–1.65% | Partial |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | S355NL | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 470–630 | MPa |
| yield_strength | ≥ 345 | ≥ 355 | MPa |
| elongation | ≥ 18 | ≥ 22 | % |
Compatibility Assessment
ASTM A588 (Corten) and S355NL have moderate differences (58% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is ASTM A588 (Corten) the same as S355NL?
ASTM A588 (Corten) and S355NL have a 58% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with S355NL?
Generally not recommended. The compositions differ significantly (58% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and S355NL?
The main differences are in the following elements: Si, Mn. ASTM A588 (Corten) is a Carbon Steel grade, while S355NL 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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