Hot Dipped Galvanized steel Coil Manufacture
Galvanized steel coil is a type of steel coil that hasundergone surface galvanizing treatment. lt is coated witha layer of zinc on the surface of a substrate (such as coldrolled or hot-rolled steel plate) to improve its corrosionresistance and service life. The galvanizing process mainlyincludes two methods: hot-dip galvanizing (hot-dipgalvanizing) and electroplating galvanizing. Among them,hot-dip galvanizing is more common, with a thicker zinclayer and stronger protection.
Advantage of Galvanized Steel
1.Excellent corrosion resistance, zinc has more reactive chemicalproperties than iron and will preferentially react with oxygen and watervapor in the environment to form a dense oxide film. The service life ofgalvanized steel plates can reach 10-50 years, far exceeding that ofordinary steel plates.
2. High cost-effectiveness and low cost anti-corrosion: Compared withstainless steel or other alloy steels, galvanizing process has lower cost,but can significantly improve the durability of steel plates and reducemaintenance or replacement costs.3. Good processing performance, galvanized steel sheet can be processedby cutting, bending, welding, etc4. High strength and lightweight, different strength substrates (such aslow carbon steel and high-strength steel) can be selected according toneeds.
5. Aesthetics, the galvanized layer presents a silver gray luster, neat andbeautiful, suitable for exposed use occasions6. Environmental friendliness and recyclability: Galvanized steel plates are100% recyclable, and zinc itself is also a reusable resource.
Available Steel Grade(Ensure weight and support third-party testing) | ||||
Steel grade | Coating | Yield(MPA) | Tensile(MPA) | Elongation(%) |
DX51D | Z,ZF | -- | 270-500 | 20 |
DX52D | Z,ZF | 140-300 | 270-420 | 22 |
DX53D | Z,ZF | 140-260 | 270-380 | 26 |
DX54D | Z,ZF | 140-220 | 270-350 | 30 |
S220GD | Z,ZF | 220 | 300 | 18 |
S250GD | Z,ZF | 250 | 330 | 17 |
S280GD | Z,ZF | 280 | 360 | 16 |
S320GD | Z,ZF | 320 | 390 | 15 |
S350GD | Z,ZF | 350 | 420 | 14 |
S400GD | Z,ZF | 400 | 470 | -- |
S450GD | Z,ZF | 450 | 530 | -- |
S500GD | Z,ZF | 500 | 560 | -- |
Select type Galvanized Steel based on requirements |