ASTM A588 (Corten) vs S275JR: 59% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A588 (Corten) vs S275JR
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.
S275JR
1.0044
Medium-strength structural steel with minimum yield strength of 275 MPa. Bridges the gap between S235JR and S355JR. Used for general structural applications, lattice towers, masts, and light crane components. Impact tested at +20°C (JR).
| ASTM A588 (Corten) | S275JR | |
|---|---|---|
| Material Number | — | 1.0044 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10025-2 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | S275JR | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0–0.21% | OK |
| Si | 0.3–0.65% | 0–0.6% | Partial |
| Mn | 0.8–1.25% | 0–1.5% | OK |
| P | 0–0.04% | 0–0.035% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | S275JR | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 410–560 | MPa |
| yield_strength | ≥ 345 | ≥ 275 | MPa |
| elongation | ≥ 18 | ≥ 23 | % |
Compatibility Assessment
ASTM A588 (Corten) and S275JR have moderate differences (59% 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 S275JR?
ASTM A588 (Corten) and S275JR have a 59% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with S275JR?
Generally not recommended. The compositions differ significantly (59% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and S275JR?
The main differences are in the following elements: Si. ASTM A588 (Corten) is a Carbon Steel grade, while S275JR is a Carbon Steel grade.
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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.