gi coil SGH440
Galvanized steel plates are made of steel that has a zinc layer on top of it. The zinc covering keeps the steel from rusting, which makes it a strong material that will last for a long time. Galvanized steel strips are used for many things, like manufacturing tools, roofs, siding, and fences.
How do you make sheets of coated steel?
After putting a steel sheet through a bath of liquid zinc, the steel coil is ready. The zinc melts and sticks to the steel, making a layer that protects it. Galvanizing steel bars can be done in two main ways: hot-dip galvanizing and electrogalvanizing.
Most of the time, hot-dip galvanizing is used. The steel sheet is put into a bath of liquid zinc that is about 800 degrees Fahrenheit hot during hot-dip galvanizing. When the zinc melts, it makes a layer that is 0.002 to 0.006 inches thick.
Not as many people use electrogalvanizing. The steel sheet is put in a bath of zinc ions during electrogalvanizing. A current of electricity is run through the steel, which makes the zinc ions stick to the surface. It takes about 0.0002 to 0.0005 inches of zinc to cover something.
What coated steel strips are made of
There are several things about galvanized steel strips that make them a good material. Some of these traits are:
Resistance to corrosion: The zinc covering on the steel keeps it from rusting, which makes it a strong material that will last a long time. Coils made of galvanized steel don't rust or corrode and can last for many years.
Strength: Galvanized steel bars are made of strong, long-lasting metal that can handle being hit and worn down. They also don't wear down easily, which makes them a good choice for situations where the material will be stressed over and over again.
Low-maintenance: Galvanized steel strips are a cheap option because they don't need much or any upkeep. Since the zinc covering keeps the steel from rusting, there's no need to paint or treat it.
What coated steel sheets are used for
In many situations, galvanized steel strips are used for things like
Roofing: Galvanized steel roofing is often used for both home and business roofing options. It lasts a long time, doesn't get damaged by the weather, and can be used in many regions. Roofing made of galvanized steel can help save money on energy costs by keeping heat away from the building.
Also, galvanized steel siding is a good choice for exterior projects. It lasts a long time, doesn't need much upkeep, and can help save energy. Putting up galvanized steel panels can also help cut down on noise pollution.
Steel fence that has been galvanized is strong and lasts a long time. It is often used for fencing. Besides that, it doesn't rust or corrode. Criminals and vandals may be less likely to break through galvanized steel fences.
Workplace tools: Galvanized steel strips are also used for many types of workplace tools, like bridges, buildings, and machines. A layer of galvanized steel can make these buildings last longer and be stronger.
Pros of steel bars that have been galvanized
There are many good things about galvanized steel coils, such as:
The galvanized steel strips are strong and can last for a long time. They can also stand up to the weather. Due to their resistance to rust, they can be used in many places.
Strength: Galvanized steel bars are made of strong, long-lasting metal that can handle being hit and worn down. They also don't wear down easily, which makes them a good choice for situations where the material will be stressed over and over again.
Low-maintenance: Galvanized steel bars don't need much or any upkeep. Since the zinc covering keeps the steel from rusting, there's no need to paint or treat it. This could help you save money on repairs.
Galvanized steel bars are a material that can last for a long time. They can be returned up to 99% of the time, which means they can be used again and again. This helps cut down on the trash that ends up in dumps.
In conclusion
There are many uses for galvanized steel bars, and they are a strong and long-lasting material. They are a good choice for commercial and residential roofs, walls, fences, and industrial machinery.


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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