q355d vs s355j2

Q355D and S355J2 are two different steel grades used in different standards.

Q355D is a high-strength structural steel grade in China, belonging to the Q355 series. It has a minimum yield strength of 355 MPa and is commonly used in construction, engineering, and manufacturing applications that require robust structural components.

On the other hand, S355J2 is a European standard steel grade designated under the EN 10025-2 standard. It is a non-alloy structural steel with a minimum yield strength of 355 MPa. S355J2 is widely used in various industries such as construction, machinery manufacturing, and offshore structures.

While both Q355D and S355J2 have similar minimum yield strengths, they may have different chemical compositions, mechanical properties, and specifications due to being governed by different standards. It is important to consult the relevant standards and specifications when selecting the appropriate steel grade for a specific application.