Development and Preparation of Cold Rolled Base Coils for 500 MPa High Strength Solar Support
WEI Bingbing
SUN Qian
ZHANG Bo
WU Xupeng
XU Yanling
SUN Yinglun
Abstract：In response to the market demand for upgrading the strength of carbon steel solar support products,a composition system design with low carbon,low silicon,medium manganese,and low titanium is adopted,fully utilizing the strengthening effect of Ti element precipitation.Combined with the controlled rolling and cooling process,the fine grain strengthening effect is strengthened,and a cold rolled base coil for 500 MPa high-strength solar support has been successfully developed.The steel strip is mainly composed of ferrite and pearlite structure,the yield strength is more than 500 MPa,tensile strength is more than 530 MPa,elongation after fracture is more than 20％,the grain size is fine and uniform.It has high strength,good ductility,surface quality,and stable cold formability,meeting the performance requirements of customers for cold rolling,annealing,and hot galvanizing aluminum magnesium processing and forming.
Keywords：solar bracketcontrolled rolling and controlled coolingprecipitation strengtheninghot dip galvanized aluminum magnesium
Publication Date：2024-06-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 40-42 )