Is P265GH stainless steel?
P265GH Material Property Analysis
1. Material Classification
P265GH belongs to carbon steel/low alloy steel, not stainless steel.
Executive standard EN 10028-2, material number 1.0425, mainly used in the manufacture of pressure vessels, boilers and other equipment.
Chemical composition to carbon (C) ≤ 0.20%, manganese (Mn) 0.50% ~ 1.40% as the main, does not contain high chromium (Cr), nickel (Ni) and other stainless steel core elements.
2. Performance and application scenarios
Temperature resistance: suitable for medium and high temperature environments of ≤400℃, but not designed for corrosion-resistant use.
Typical use: petrochemical equipment, boiler head, heat exchanger piping, etc., relying on its high strength, good weldability and pressure resistance, rather than corrosion resistance.
3. Comparison with stainless steel
| parametric | P265GH | Typical Stainless Steel(like 304) |
|---|---|---|
| Chromium (Cr) content | ≤0.30%(Non-major alloying elements) | ≥18% |
| corrosion resistance | General (additional corrosion protection required) | Excellent (natural formation of a protective layer of chromium oxide) |
| core application | Pressure vessels, high temperature equipment | Food processing and chemical preservation equipment |
P265GH is a carbon/low alloy steel, not a stainless steel, and is designed for mechanical properties under high pressure and high temperature service, not for corrosion resistance.
