Iron Sheets

GP sheets are mild steel sheets that have been galvanized—coated with a layer of zinc to prevent corrosion. The galvanization process (typically done by hot-dip or electro-galvanizing) protects the sheet from rusting, making it ideal for outdoor and moisture-prone environments. These sheets have a shiny, smooth finish and are used in ducting, roofing, wall cladding, cabinets, and automotive parts. GP sheets are also easy to bend and fabricate, which makes them a versatile material in both construction and manufacturing.

                     HR sheets are made by rolling steel at high temperatures (above recrystallization point). This process makes the sheets softer and more malleable, allowing them to be formed into larger shapes easily. HR sheets typically have a rough, scaled surface and are less precise in dimensions compared to CR sheets. They are widely used in structural components, shipbuilding, tanks, railways, and industrial equipment, where surface finish is not a critical requirement but strength and formability are important.

                     CR sheets are produced by rolling hot rolled sheets at room temperature, which gives them a smooth, bright surface finish and tighter dimensional tolerances. This cold rolling process increases the sheet’s strength and hardness, but reduces its ductility. CR sheets are used where aesthetic finish and precision are important, such as in automotive panels, home appliances, furniture, and precision instruments. They are also ideal for applications requiring further coating or painting due to their clean surface.