Weathering steel (also known as Corten steel) is designed to form a stable, self-protecting rust layer when exposed to atmospheric conditions. From railway wagons, shipping containers, and bridge structures to building facades, transmission towers, and architectural cladding, these steel grades deliver superior atmospheric corrosion resistance while maintaining structural integrity without the need for painting.

  At Cehe Steel, we supply a complete range of Chinese weathering steel grades under GB/T 4171-2008. Our focus extends beyond mechanical properties — we prioritize corrosion resistance index, weldability, and the formation of a uniform patina layer that protects the steel over decades of outdoor exposure.

  China has become a major manufacturer of railway rolling stock, containers, and bridge components exported worldwide. We work directly with certified mills to deliver weathering steel that meets international standards. Whether you need Q235NH for general welded structures, Q355NH for heavy bridge fabrication, or Q460NH for high-strength applications, our team provides technical support and full mill certification.

  We understand that weathering steel applications require long-term confidence in corrosion performance. That's why we place equal importance on chemical composition control (especially Cu, Cr, Ni, P), impact toughness at low temperatures, and the formation of a dense, adherent rust layer — not just the steel strength.

  In bridges, railcars, and architectural projects, the beauty of weathering steel is matched by its durability. The right steel ensures decades of maintenance-free service.