gi coil S550GD
A form of steel that has been coated with a coating of zinc is referred to as galvanized steel coils. The zinc coating prevents corrosion from occurring on the steel, which makes it a material that is both long-lasting and corrosion-resistant. Roofing, siding, fencing, and industrial equipment are just some of the applications that galvanized steel coils find usage in due to their versatility.
What is the process of making galvanized steel coils?
The process of making galvanized steel coils involves applying molten zinc to a sheet of steel and then passing it through the bath. A protective coating is produced when the zinc melts and clings to the steel as it is being applied. Hot-dip galvanizing and electrogalvanizing are the two procedures that are most often used to galvanize steel coils.
Hot-dip galvanizing is the process that is used the most often. At a temperature of around 800 degrees Fahrenheit, the steel sheet is submerged in a bath of molten zinc during the process of hot-dip galvanizing. At a thickness of around 0.002 to 0.006 inches, the zinc melts and creates a layer.
Electrogalvanizing is a technique that is used less often. The process of electrogalvanizing involves immersing the sheet of steel in a solution containing zinc ions. The zinc ions are deposited on the surface of the steel as a result of an electrical current being supplied to the steel (electrical current). The thickness of the zinc coating ranges from about 0.0002 to 0.0005 inches.
Coils made of galvanized steel and their characteristics
Because of its many beneficial qualities, galvanized steel coils are a material that is highly sought after. A few examples of these qualities are:
The zinc coating provides protection against corrosion, which helps to ensure that the steel is a material that is both long-lasting and lasting. Steel coils that have been galvanized may withstand the elements for decades without rusting or corroding.
Strength: Galvanized steel coils are a material that is both strong and durable, and they are able to handle both impact and wear conditions. For situations in which the material will be exposed to repetitive stress, they are also resistant to fatigue, which makes them an excellent option for the material.
Galvanized steel coils are a cost-effective option when it comes to maintenance since they need very little or no maintenance at all. It is not necessary to paint or seal the material since the zinc coating, which protects the steel from corrosion, is not required.
Utilizations of galvanized steel coils in various forms
A wide range of applications call for the use of galvanized steel coils, including the following:
When it comes to roofing, galvanized steel roofing is a common option for both residential and commercial structures. It is long-lasting, will not be affected by the elements, and may be used in a wide range of temperatures. Roofing made of galvanized steel may assist minimize energy expenses by reflecting heat away from the structure, which eliminates the need for additional heating.
Galvanized steel siding is another excellent option for use in siding projects because to its durability and durability. It is long-lasting, requires little maintenance, and has the potential to contribute to increased energy efficiency. Additionally, galvanized steel siding has the potential to lessen the amount of noise pollution.
Galvanized steel fence is a material that is often utilized for fencing applications since it is both sturdy and long-lasting to use. In addition to this, it shows resistance to rust and corrosion. Both criminal activity and vandalism may be discouraged by fence made of galvanized steel.
Galvanized steel coils are also used for a wide range of industrial equipment, including bridges, buildings, and machinery, among other things within the industrial sector. Utilizing a galvanized steel coating is one way to make these buildings more long-lasting and sturdy.
Galvanized steel coils provide a number of advantages.
There are several advantages that galvanized steel coils provide, including the following:
Having the capacity to endure the weather, galvanized steel coils are a material that is both long-lasting and robust. The fact that they are resistant to corrosion makes it possible for them to be used in a wide range of situations.
Strength: Galvanized steel coils are a material that is both strong and durable, and they are able to handle both impact and wear conditions. For situations in which the material will be exposed to repetitive stress, they are also resistant to fatigue, which makes them an excellent option for the material.
Galvanized steel coils need very little to no maintenance, making them a low management option. It is not necessary to paint or seal the material since the zinc coating, which protects the steel from corrosion, is not required. It is possible that this will reduce the price of maintenance.
Coils made of galvanized steel are an example of a material that is compatible with sustainability. Due to the fact that they are capable of being recycled up to 99%, they can be reused an infinite number of times. Additionally, this contributes to a reduction in the quantity of garbage that is delivered to landfills.
As a conclusion
A flexible and long-lasting material, galvanized steel coils provide a variety of advantages to its users. A wide range of applications, such as roofing, siding, fence, and industrial equipment, are all ideal candidates for their use.


Product Advantages
01. Anticorrosive: 13 years in highly industrialized regions
02. Cheap: The cost of hot-dip galvanizing is lower than that of other coatings.
03. Reliable: The zinc coating is metallurgically attached to the steel, making it an integral part of the steel surface. This bonding process increases the coating's durability.
04. Superior durability: The galvanized coating creates a unique metallic structure that is resistant to mechanical stress in transit and handling.
05. Comprehensive protection: Every portion of the plated component can be galvanized, and is totally protected even in depressions, sharp corners, and concealed locations.
06. Save time and energy: The galvanizing process is faster than other coating methods.

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Product Name |
Galvanized Coil |
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Material |
Dx51D, Dx52D, Dx53D, DX54D, S220GD, S250GD, S280GD, S350GD, S350GD, S550GD; SGCC, SGHC, SGCH, SGH340, SGH400, SGH440, SGH490, |
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SGH540, SGCD1, SGCD2, SGCD3, SGC340, SGC340 , SGC490, SGC570; SQ CR22 (230), SQ CR22 (255), SQ CR40 (275), SQ CR50 (340), SQ |
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CR80(550), CQ, FS, DDS, EDDS, SQ CR33 (230), SQ CR37 (255), SQCR40 (275), SQ CR50 (340), SQ CR80 (550); or Customer's Requirement |
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Thickness |
0.12-6.00mm or customer's requirement |
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Width |
600mm-1500mm, according to customer's requirement |
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Zinc coated |
30g-275g/m2 |
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Type of Coating |
Hot Dipped Galvanized Steel |
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Surface Treatment |
Passivation(C), Oiling(O), Lacquer sealing(L), Phosphating(P), Untreated(U) |
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Surface Structure |
Normal spangle coating(NS), minimized spangle coating(MS), spangle-free(FS) |
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Coil ID |
508mm or 610mm |
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Coil Weight |
3-20 metric ton per coil |
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Standard |
JIS 3302 / ASTM A653 /EN10143 AISI , ASTM , DIN , GB , JIS G3302 G3312 G3321 , BS |
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Technique |
Hot Rolled / Cold Rolled |
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Product Application |
1. Fence, greenhouse, door pipe,greenhouse |
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2. Low pressure liquid, water, gas, oil, line pipe |
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3. For both indoor and outdoor the building construction |
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4. Widely used in scaffolding construction which is much cheaper and convenient |
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Origin |
Shandong China |
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Certificates |
API ISO9001-2008,SGS.BV |
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Delivery Time |
Usually within 10-45 days after receipt of advance payment |


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