ASTM A36 vs ASTM A588 (Corten): 51% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A36 vs ASTM A588 (Corten)
Side-by-side chemical composition and mechanical property comparison.
Overview
ASTM A36
K02600
The most common structural carbon steel in the US. Low carbon content with good weldability and machinability. Used for buildings, bridges, construction equipment, and general structural purposes. Minimum yield strength 36 ksi (250 MPa).
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.
| ASTM A36 | ASTM A588 (Corten) | |
|---|---|---|
| Material Number | K02600 | — |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A36/A36M | ASTM A588 |
Chemical composition (wt%)
| Element | ASTM A36 | ASTM A588 (Corten) | Overlap |
|---|---|---|---|
| C | 0–0.26% | 0–0.19% | OK |
| Si | 0–0.4% | 0.3–0.65% | Partial |
| Mn | 0–1.03% | 0.8–1.25% | Partial |
| P | 0–0.04% | 0–0.04% | OK |
Mechanical properties
| Property | ASTM A36 | ASTM A588 (Corten) | Unit |
|---|---|---|---|
| tensile_strength | 400–550 | ≥ 485 | MPa |
| yield_strength | ≥ 250 | ≥ 345 | MPa |
| elongation | ≥ 20 | ≥ 18 | % |
Compatibility Assessment
ASTM A36 and ASTM A588 (Corten) have moderate differences (51% 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 A36 the same as ASTM A588 (Corten)?
ASTM A36 and ASTM A588 (Corten) have a 51% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A36 with ASTM A588 (Corten)?
Generally not recommended. The compositions differ significantly (51% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A36 and ASTM A588 (Corten)?
The main differences are in the following elements: Si, Mn, Cu. ASTM A36 is a Carbon Steel grade, while ASTM A588 (Corten) 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.