How strong is SGCC sheet?
Its tensile strength ranges from 270-500 megapascals (MPa), and its yield strength is approximately 140-280 MPa, depending on the grade of the steel substrate.
How is SGCC sheet processed?
The cold rolling process gives SGCC sheet a smooth surface and uniform thickness, making it easy to process through subsequent processes such as welding, stamping, and bending. However, extreme deep drawing may cause the galvanized layer to crack, requiring adjustment of process parameters.
How is SGCC sheet weldable?
When welding SGCC sheet, the zinc layer easily produces zinc vapor and spatter. TIG welding is a good option, offering better results and reducing spatter. Alternatively, the weld seam and heat-affected zone can be cleaned after welding and then coated with zinc-rich paint or sprayed for protection.
How paintable is SGCC sheet?
SGCC sheet is easy to paint, further enhancing corrosion resistance and aesthetics, meeting the aesthetic requirements of applications such as home appliances and construction.
What is the manufacturing process for SGCC sheet? The continuous hot-dip galvanizing process is mainly used, and the process includes pretreatment (cleaning, degreasing, pickling), flux treatment, hot-dip galvanizing (immersing the steel plate in molten zinc liquid at about 450-460℃), and post-treatment (cooling, straightening, trimming, etc.).