According to the thickness of the steel plate, thin steel plate <4 mm (the thinest 0.2 mm), medium thick steel plate 4~60 mm, extra thick steel plate 60~115 mm.

Steel plate is divided into hot rolled and cold rolled.

The width of the sheet is 500~1500 mm; The width of the thickness is 600~3000 mm. According to the type of steel, there are ordinary steel, high quality steel, alloy steel, spring steel, stainless steel, tool steel, heat resistant steel, bearing steel, silicon steel and industrial pure iron sheet; According to professional use, there are oil barrel plate, enamel plate, bulletproof plate and so on; According to the surface coating, there are galvanized sheet, tin sheet, lead sheet, plastic composite steel plate, etc.