Hot Dipped Galvanized Steel Coil
The main characteristics of hot dipped galvanized steel coil have good processing performance, strong corrosion resistance, high heat resistance, perfect mechanical properties and pretty surface quality, which are beneficial to further processing, economical and practical in infrastructure and construction.
Hot dipped galvanized steel coil are processed by continuous hot-dip galvanizing from cold-rolled steel coil. Zinc coating on both sides can effectively prevent corrosion and rust, and increase the service life of steel plate.
Product Specification & Features
|Hot Dipped Galvanized Steel Coil|
|Standard||JIS G3302, EN10147, ASTM A653M|
|DX51D, DX52D, DX53D, DX54D|
|S280GD, S320GD, S350GD, S400GD, S500GD, S550GD|
|Spangle Model||Zero Spangle, Small Spangle, Regular Spangle, Big Spangle|
|Surface Treatment||Chromated, Oiled, No-oiled|
|Hardness||Softy, Semi Hard, Full Hard, G550|
|Coil Weight||3-5MT/Coil or Customized|
|Coil Inner Diameter||508MM or 610MM|
|Package||Standard Seaworthy Exporting Packing|
|Transport Type||Vessel Container, Vessel Bulk, Railway Container, Railway Wagon|
|Loading Port||Tianjin, Qingdao, Ningbo, Shanghai and other China’s port|
|Delivery Time||15-25 Days after Receiving the Deposit|
|Terms of Trade||EXW, FOB, CFR, CIF|
|Terms of Payment||T/T and Irrevocable LC at Sight|
The advantages of galvanized steel coil are mainly manifested in the following aspects:
Hot dipped galvanized steel coil can fully meet the requirements of rolling, stamping, printing, marking, bending and other forms of processing.
Hot dipped galvanized steel coil has excellent corrosion resistance, and the service life is 3 times than that of hot rolled and cold rolled steel under the test of the same thickness and surface treatment.
Hot dipped galvanized steel coil can be used for a long time in an environment of 315 degrees without changing color while other steel sheets are just used at a temperature of only 230 degrees, and 250 degrees will change color.
The mechanical properties of galvanized steel sheets are significantly higher than those of hot rolled and cold rolled steel sheets, which are mainly manifested in yield strength, tensile strength, and elongation. The yield strength of galvanized steel sheet is between 300 and 400mpa, the tensile strength is between 300 and 550mpa, and the elongation is between 28% and 40%.
Quality Control and Self-inspection
WITOP steel have the advanced testing equipment and professional team. WITOP steel strictly control the quality on each step of production, including inspection on raw materials, product’s thickness and width test, zinc coating test, T-bend test, impact test, tensile test, salt-spray test and package testing on exporting steel coil, which ensures its integrated performance and quality.
Hot dipped galvanized steel coil has excellent performance and good comprehensive properties such as corrosion resistance, easy forming and painting. Hot dipped galvanized steel coil are mainly used in build construction, home appliances, containers, transportation,automobiles and metallurgical industries.
Construction industry: roofs, doors and windows, rolling shutter doors, ceiling keels, etc.;
Home appliances: refrigerators, washing machines, air conditioners, range hoods, etc.;
Automotive industry: body shells, chassis, doors, fuel tanks, fenders, etc.;
Metallurgical industry: steel window blanks, color-coated board substrates, etc.
For example, Corrugated Roofing Sheet, Steel Floor Deck Sheet, Ventilation Ducts, U/C Channel, Round/Rectangular/Square pipe, Protection Fence of Highways, Metal Expanded Mesh and so on.
Standard export package: 3 layers of packing, inner side is anti-water craft paper, PVC plastic film is the middle and outer side covered by at least 0.45mm thick steel sheet,wrapped by minimum seven steel strapping strips with lock catch.
In particular, WITOP steel places desiccant on the coil inner core side and on both lateral sides of the coil for bulk transportation to ensure that coils are delivered to clients in good condition.
Package can be customized as client’s requirements.
Loading and Fastening Steel Coil
WITOP steel have our own loading and fastening workers and team, which can fasten steel coils well in container and bulk based on ship line company. WITOP steel can guarantee galvanized steel coil well to every client.
Main Market and Customer’s Feedback
WITOP steel have exported galvanized steel coil to Ethiopia, Somalia, Kenya, Tanzania, South Africa, Nigeria, Guinea, Ghana, Saudi Arabia, UAE, Kuwait, Iraq, Yemen, Singapore, Indonesia, Philippines, Thailand, Chile, Peru, Argentina, Bolivia and other countries for twenty years. Hot dipped galvanized steel coil have gained good reputation and wide appreciation throughout Africa, Middle East, Middle Asia, Southeast Asia and South America.
FAQ of Hot Dipped Galvanized Steel Coil
1.Is hot dipped galvanized steel same as galvanized?
Hot-dipped galvanized steel is a type of galvanized steel. Hot dipped galvanizing process is practical, and hot dipped galvanized product is very durable, versatile and highly corrosion-resistant.
2.What is the difference between G60 and G90 for galvanized steel?
G90 galvanized steel are coated by the coating weight of zinc 0.90 oz/ft^2 while G60 galvanized steel are 0.60 oz/ft^2. That is to say, G90 galvanized steel are coated by the weight of zinc 275g/m^2 while G60 galvanized steel are 180g/m^2.
Therefore, G90 galvanized steel are more 95g/m^2 zinc coating than G60 and then a longer service life.
3.What are galvanized steel coil used for?
Hot dipped galvanized steel coil are most produced to roofing sheet for construction and houses.
4.How are galvanized coils made?
Hot dipped galvanized steel coil are made from cleaning and heat-treating cold rolled coils and then are zinc coated from zinc pot. Through this process, cold rolled steel coil are plated with zinc for anti-rust.
5.How long will galvanized steel coil last?
The zinc coating of hot-dipped galvanized steel will last 10 to 30 years in the open environment. High humidity and temperature have less life time for galvanized steel coil.
6.Does galvanized steel rust?
Galvanized steel coil will take 10 year or more to rust, but it will eventually rust. Galvanized steel coil the layer of zinc on both sides. which can resit rust acts by preventing oxygen and water from the steel.