Galvanized sheet means is coated with a layer of metallic zinc on the surface of the steel sheet.,this kind of galvanized steel sheet is called galvanized sheet.Galvanized steel sheets are often used to prevent corrosion on the surface of the steel sheet and prolong its life.G.I./GC Sheets are galvanized steel sheets or coils that are zinc coated and cold rolled sheets/ coils. G.I sheets are available in GI coils, Galvanised Plain sheets (GP) and Galvanised Corrugated Sheet (GC). And this material processed by the electroplated coating method .
The GI sheets are used in automotive applications as it has enhanced paint ability, weld ability and corrosion resistance. GI sheets are also used in washers, refrigerators, air-conditioners, vending machines, microwaves and construction materials etc. Galvanised Corrugated Sheets are used to cover the Steel Structure and Industrial Sheds, Warehousing Buildings, Houses, Hutments etc.
CR sheets or cold rolled sheets are hot rolled products which provides a superior surface finish, with improved physical properties of the steel, such as high formability, high strength, excellent dent resistance, good magnetic properties, tensile strength, and workability and welding properties. With Cold Rolling its thickness is reduced to precise gauges. CR Sheets are available in sheets and coils.
CR sheets are used for multitude of applications like precision tubes making, containers, bicycles, furniture, household appliances, electrical panels, construction, galvanizing, general engineering etc.. Automobile industry used the CR Sheets to produce car body panels. Cold rolled products are also used for further processing like colour coating, galvanising and tinning.
HR sheets or hot rolled sheets are steel sheets that are soft enough to bend flat on itself in any direction, without cracking. They are ductile enough for shallow drawing used in variety of industries in the domestic market.
Hot rolled coils are primarily used for making pipes and have many direct industrial and manufacturing applications, including the construction of tanks, railway cars, bicycle frames, ships, engineering and military equipment and automobile and truck wheel caps, frames and body parts, pipes, LPG cylinders and shuttering plates. They also find application in construction industry.