Facing a key material decision for your pressure vessel? The selection between European grades like P355GH or P265GH and the American standard SA516 Gr.70 often sits at the heart of it. Here, we move beyond basic properties to a practical comparison that balances mechanical performance, compliance, and manufacturability to guide your choice.
The following table summarizes the fundamental characteristics of these three prevalent pressure vessel steel grades.
| Specification | P355GH (EN 10028-2) | P265GH (EN 10028-2) | SA516 Gr.70 (ASTM A516/A516M) |
| Standard / Market | European Standard | European Standard | American Standard (ASME, Global) |
| Minimum Yield Strength | 355 MPa | 265 MPa | 260 MPa (38 ksi) |
| Tensile Strength Range | 470 – 630 MPa | 410 – 530 MPa | 485 – 620 MPa |
| Key Advantage | Optimal strength-toughness-weldability balance. | Excellent formability & cost-effectiveness for lower pressures. | Unmatched global acceptance & mature certification supply chain. |
| Typical Application Scope | High-pressure vessels, power plant boilers, large storage spheres. | Low to medium-pressure vessels, heat exchangers, storage tanks. | Petrochemical reactors, oil & gas separators, low-temperature storage. |
The optimal choice depends on your project’s governing standards, design parameters, and economic considerations.
P245NB Gas Cylinder Steel Sheets ＆ Coils
Duplex Stainless Steel
Deformed Bars
Spring Steel
Wide Flange Steel Beams – W Shape / HEA & HEB
>