gi sheet price per kg S220GD
Galvanized steel is steel that has been coated with a zinc coating. The zinc coating protects the steel against corrosion, making it a long-lasting and sturdy material. Galvanized steel is utilized in many different applications, such as roofing, siding, fence, and industrial equipment.
How is galvanized steel manufactured?
Galvanized steel is created by immersing a sheet of steel in molten zinc. Zinc melts and bonds to the steel, forming a protective layer. Steel may be galvanized in two ways: hot-dip galvanizing and electrogalvanizing.
The most popular process is hot-dip galvanizing. The steel sheet is submerged in a bath of molten zinc at a temperature of roughly 800 degrees Fahrenheit during hot-dip galvanizing. The zinc melts and creates a layer 0.002 to 0.006 inches thick.
A less popular procedure is electrogalvanizing. The steel sheet is immersed in a bath of zinc ions during electrogalvanizing. An electrical current is sent through the steel, causing zinc ions to accumulate on its surface. The zinc coating is between 0.0002 and 0.0005 inch thick.
Galvanized steel properties
Galvanized steel has many qualities that make it an attractive material. These characteristics include:
Corrosion resistance: The zinc coating prevents corrosion, making the steel a sturdy and long-lasting material.
Galvanized steel is a robust and long-lasting material that can endure impact and abrasion.
Low upkeep: Galvanized steel needs little to no maintenance, making it an economical alternative.
Galvanized steel applications
Galvanized steel is used in a number of different applications, including:
Roofing: Galvanized steel roofing is a common option for both residential and commercial roofs. It is long-lasting, weather-resistant, and suitable for usage in a range of climates.
Galvanized steel siding is another fantastic option for siding applications. It is long-lasting, low-maintenance, and may aid in energy efficiency.
Galvanized steel fence is a robust and durable material that is often used for fencing. It is also rust and corrosion resistant.
Galvanized steel is also utilized in a range of industrial equipment, including bridges, buildings, and machinery. A galvanized steel coating may make these buildings more sturdy and long-lasting.
Conclusion
Galvanized steel is a flexible and long-lasting material with several advantages. It is an excellent solution for a wide range of applications, and it may help you decrease your environmental impact while also saving money on maintenance expenses.


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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