ASTM A588 (Corten) vs S355JR: 60% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A588 (Corten) vs S355JR
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.
S355JR
1.0045
High-strength low-alloy structural steel with minimum yield strength of 355 MPa. Standard grade for bridges, buildings, cranes, and general structural applications. Impact tested at +20°C (JR).
| ASTM A588 (Corten) | S355JR | |
|---|---|---|
| Material Number | — | 1.0045 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10025-2 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | S355JR | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0–0.24% | OK |
| Si | 0.3–0.65% | 0–0.55% | Partial |
| Mn | 0.8–1.25% | 0–1.6% | OK |
| P | 0–0.04% | 0–0.035% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | S355JR | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 470–630 | MPa |
| yield_strength | ≥ 345 | ≥ 355 | MPa |
| elongation | ≥ 18 | ≥ 22 | % |
Compatibility Assessment
ASTM A588 (Corten) and S355JR have moderate differences (60% 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 S355JR?
ASTM A588 (Corten) and S355JR have a 60% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with S355JR?
Generally not recommended. The compositions differ significantly (60% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and S355JR?
The main differences are in the following elements: Si. ASTM A588 (Corten) is a Carbon Steel grade, while S355JR 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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