Any metal that can be shaped into flat pieces of varied thicknesses is referred to as “sheet metal.” Plate refers to thick metals. Cold rolled steel, mild steel, stainless steel, tin, nickel, titanium, aluminum, brass, and copper are all metals used in the sheet metal industry. Read More: https://indgirka.com/welding-vs-fastening-choosing-the-right-assembly-method-for-your-sheet-metal-fabrication/