ASTM A588 (Corten) vs P235GH: 43% composition overlap. Significantly different materials serving different application areas.
ASTM A588 (Corten) vs P235GH
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.
P235GH
1.0345
Lowest-strength pressure vessel steel — ReH >=235 MPa. Excellent weldability due to very low C (max 0.16%). THE entry-level boiler/pressure vessel plate in EN 10028-2. Used for low-pressure vessels, boiler drums, heat exchangers, and steam piping at modest pressures and temperatures to ~400°C.
| ASTM A588 (Corten) | P235GH | |
|---|---|---|
| Material Number | — | 1.0345 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10028-2 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | P235GH | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0–0.16% | OK |
| Si | 0.3–0.65% | 0–0.35% | Partial |
| Mn | 0.8–1.25% | 0–1.2% | Partial |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | P235GH | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 360–480 | MPa |
| yield_strength | ≥ 345 | ≥ 235 | MPa |
| elongation | ≥ 18 | ≥ 25 | % |
Compatibility Assessment
ASTM A588 (Corten) and P235GH have significantly different compositions (43% 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 P235GH?
ASTM A588 (Corten) and P235GH have a 43% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with P235GH?
Generally not recommended. The compositions differ significantly (43% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and P235GH?
The main differences are in the following elements: Si, Mn. ASTM A588 (Corten) is a Carbon Steel grade, while P235GH 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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