S355J0H and S355J2H are both grades of carbon steel pipes that conform to the EN 10210-1 standard for hot-finished structural hollow sections. These pipes are used in various applications where high strength, durability, and structural integrity are required.

S355J0H and S355J2H pipes have similar chemical compositions, primarily consisting of carbon, manganese, silicon, phosphorus, and sulfur. However, the key difference lies in their minimum yield strengths. S355J0H has a minimum yield strength of 355 MPa (51,000 psi), while S355J2H has a minimum yield strength of 355-510 MPa (51,000-74,000 psi).

These carbon steel pipes are widely used in industries such as construction, infrastructure, and mechanical engineering. They are suitable for applications involving structural frameworks, buildings, bridges, and other load-bearing structures. The hot-finished process gives the pipes excellent dimensional accuracy, smooth surface finish, and tight tolerances.

S355J0H and S355J2H carbon steel pipes can be further processed through cutting, bending, welding, and other fabrication methods to meet specific project requirements. They are known for their reliability, ductility, and toughness, making them ideal for demanding structural applications.