ASTM A588 (Corten) vs P265GH: 47% composition overlap. Significantly different materials serving different application areas.
ASTM A588 (Corten) vs P265GH
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.
P265GH
1.0425
Unalloyed pressure vessel steel — THE standard boiler plate material in Europe. ReH >=265 MPa, good weldability, guaranteed elevated-temperature properties to ~450°C. "GH" = suitable for use at elevated temperatures. Used for boilers, pressure vessels, heat exchangers, and steam drums per EN 10028-2 and PED 2014/68/EU.
| ASTM A588 (Corten) | P265GH | |
|---|---|---|
| Material Number | — | 1.0425 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10028-2 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | P265GH | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0–0.2% | OK |
| Si | 0.3–0.65% | 0–0.4% | Partial |
| Mn | 0.8–1.25% | 0–1.4% | OK |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | P265GH | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 410–530 | MPa |
| yield_strength | ≥ 345 | ≥ 265 | MPa |
| elongation | ≥ 18 | ≥ 23 | % |
Compatibility Assessment
ASTM A588 (Corten) and P265GH have significantly different compositions (47% 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 P265GH?
ASTM A588 (Corten) and P265GH have a 47% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with P265GH?
Generally not recommended. The compositions differ significantly (47% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and P265GH?
The main differences are in the following elements: Si. ASTM A588 (Corten) is a Carbon Steel grade, while P265GH is a Carbon Steel grade.
Related Comparisons
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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.