ASTM A588 (Corten) vs P355GH: 44% composition overlap. Significantly different materials serving different application areas.
ASTM A588 (Corten) vs P355GH
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.
P355GH
1.0473
Higher-strength pressure vessel steel — ReH >=355 MPa, guaranteed elevated-temperature properties. Between P265GH and 16Mo3 in the pressure vessel hierarchy. Used for boilers, steam drums, heat exchangers, and pressure piping operating to ~400°C. EN 10028-2, PED 2014/68/EU compliant. Good weldability.
| ASTM A588 (Corten) | P355GH | |
|---|---|---|
| Material Number | — | 1.0473 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A588 | EN 10028-2 |
Chemical composition (wt%)
| Element | ASTM A588 (Corten) | P355GH | Overlap |
|---|---|---|---|
| C | 0–0.19% | 0–0.22% | OK |
| Si | 0.3–0.65% | 0–0.4% | Partial |
| Mn | 0.8–1.25% | 0–1.6% | OK |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A588 (Corten) | P355GH | Unit |
|---|---|---|---|
| tensile_strength | ≥ 485 | 490–630 | MPa |
| yield_strength | ≥ 345 | ≥ 355 | MPa |
| elongation | ≥ 18 | ≥ 20 | % |
Compatibility Assessment
ASTM A588 (Corten) and P355GH have significantly different compositions (44% 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 P355GH?
ASTM A588 (Corten) and P355GH have a 44% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A588 (Corten) with P355GH?
Generally not recommended. The compositions differ significantly (44% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A588 (Corten) and P355GH?
The main differences are in the following elements: Si. ASTM A588 (Corten) is a Carbon Steel grade, while P355GH 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.