P275N P275NH P275NL1 P275NL2 steel plate

P275N, P275NH, P275NL1, and P275NL2 are all grades of steel plates commonly used in pressure vessel applications. These grades belong to the EN 10028-3 standard, which specifies requirements for flat products for pressure purposes.

P275N is a normalized fine-grain steel grade with a minimum yield strength of 275 MPa. It is primarily used in pressure vessel fabrication and is suitable for low-temperature applications.

P275NH is a normalized fine-grain steel with elevated temperature properties. It has a minimum yield strength of 275 MPa and excellent weldability. It is commonly utilized in pressure vessels operating at elevated temperatures.

P275NL1 is a low-temperature grade with a minimum yield strength of 275 MPa. It is particularly suitable for applications involving low-temperature storage and transportation of gases and liquids.

P275NL2 is similar to P275NL1 but offers improved toughness at low temperatures. It also has a minimum yield strength of 275 MPa and is primarily used in low-temperature pressure vessel applications.

Overall, these steel plate grades provide reliable performance and are widely employed in various industrial sectors that require materials capable of withstanding pressure and varying temperature conditions.