UC 305x305x137 S355JR/S355J0 Structural Steel
Chemical composition of S355JR/S355J0 h shaped steel
Main elements: C≤0.20%, Si≤0.55%, Mn≤1.60%, P≤0.040%, S≤0.040%, and alloying elements such as Cr, Ni, and Cu are added; the strength and corrosion resistance are improved through alloying design, and it is suitable for complex working conditions.
Yield strength: 355 MPa (nominal value).
Tensile strength: 470-630 MPa.
Impact toughness comparison
S355JR h type beam: impact energy ≥27 J (20℃).
S355J0 steel beam h: impact energy ≥27 J (0℃).
Process performance: good weldability, hot and cold processing, suitable for complex structure welding; delivery state is hot rolling or normalizing rolling.
Application fields of S355JR/S355J0 305x305x137 h section steel
Buildings and bridges: suitable for load-bearing structures such as high-rise buildings, large factories, and gymnasiums; used for key parts such as main beams and piers in bridge engineering.
Machinery manufacturing: used for high-load components such as heavy machinery frames, pressure vessels, and crane rails.
Special environmental adaptability
S355JR h beam steel structure: suitable for low temperature or dynamic load scenarios (such as northern bridges and wind power towers).
S355J0 material h beam: suitable for general industrial plants and medium corrosion environments.
