ASTM A36 vs P355GH: 68% composition overlap. Moderate differences, generally not direct substitutes.
ASTM A36 vs P355GH
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).
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 A36 | P355GH | |
|---|---|---|
| Material Number | K02600 | 1.0473 |
| Category | Carbon Steel | Carbon Steel |
| Standard | ASTM A36/A36M | EN 10028-2 |
Chemical composition (wt%)
| Element | ASTM A36 | P355GH | Overlap |
|---|---|---|---|
| C | 0–0.26% | 0–0.22% | OK |
| Si | 0–0.4% | 0–0.4% | OK |
| Mn | 0–1.03% | 0–1.6% | OK |
| P | 0–0.04% | 0–0.025% | OK |
Mechanical properties
| Property | ASTM A36 | P355GH | Unit |
|---|---|---|---|
| tensile_strength | 400–550 | 490–630 | MPa |
| yield_strength | ≥ 250 | ≥ 355 | MPa |
| elongation | ≥ 20 | ≥ 20 | % |
Compatibility Assessment
ASTM A36 and P355GH have moderate differences (68% 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 P355GH?
ASTM A36 and P355GH have a 68% composition overlap. They are generally not directly interchangeable.
Can I replace ASTM A36 with P355GH?
Generally not recommended. The compositions differ significantly (68% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between ASTM A36 and P355GH?
The main differences are in the following elements: overall alloying content. ASTM A36 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.
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