Q355NH steel under GB/T 4171 standard is a Chinese atmospheric corrosion resisting structural steel grade. The corrosion retarding effect of the protective layer is produced by the particular distribution and concentration of alloying elements in it. As a result, the layer protecting the surface develops and regenerates continuously when subjected to the influence of the weather. In other words, the steel rusts to form the protective coating. Q355NH steel properties: By adding a small amount of alloying elements Cu, P, Cr, Ni, etc., it forms a protective layer on the metal surface to improve the atmospheric corrosion resistance.
Q355NH steel plate machining We carry weather resistant steel plates and sheets in stock in a variety of gauges and widths. We can cut sheet Q355NH to any weight and size for immediate delivery. There are various machining service to different shapes and sizes of weather resistant steel sheets and coils like cutting, welding, grinding, and drilling.
As a leading China supplier of GB/T 4171Q355NH weather resistant steel, we can supply Q355NH weather resistant steel plate, hot rolled Q355NH steel sheet, steel coils and steel sections. For more information about Q355NH steel plate weight, sheets size, tolerance, Q355NH plate price or heat treatment, please feel free to contact us.