Development and Corrosion Resistance Study of 550 MPa High Strength and Corrosion Resistant Photovoltaic Brackets
With the rapid development of the photovoltaic industry,new requirements have been put forward for weather resistant steel used in photovoltaic brackets.Its high strength,high corrosion resistance,and good formability are its key research areas.Based on industry and market demands,Tangshan Iron and Steel Group adopts Nb,based on existing production equipment and process characteristics Ti composite and reasonable addition of Cu A weather resistant steel T550HN with high corrosion resistance at 550 MPa level for photovoltaic brackets has been successfully developed using components such as Cr,Ni,and Si.The results show that the developed T550NH has excellent mechanical properties,with a yield strength of 600 MPa.The forming performance meets customer requirements through simulation and has good corrosion resistance.Periodic immersion experiments show a corrosion rate of 44.65％relative to Q355B,and accelerated corrosion simulation tests in industrial environments show a corrosion rate of 54％relative to Q355B.
high strengthphotovoltaic bracketweathering resistant steelrelative corrosion rate
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