Gi Steel Sheet
Gi Steel Sheet, also known as galvanized iron steel sheet, is a type of steel sheet that has been coated with a layer of zinc to prevent rusting and corrosion. The term "gi" comes from the British standard designation for hot-dip galvanized iron, which is abbreviated as GI1. Gi Steel Coil is one of the most common and widely used forms of galvanized steel, and it has a variety of applications in different industries, such as construction, roofing, fencing, automotive, and electrical. Gi Steel Sheet is produced by passing the steel sheet through a molten bath of zinc at a high temperature, which creates a metallurgical bond between the steel and the zinc. The thickness and weight of the zinc coating can vary depending on the specifications and requirements of the customers.

Product Features
Gi Steel Sheets are incredibly versatile and are used in various sectors, including:
- Construction and Building: Ideal for roofing, siding, framing, and ductwork in both residential and commercial buildings.
- Automotive Industry: Used for manufacturing body parts of vehicles due to their corrosion resistance.
- Appliances: Commonly used in making refrigerators, washing machines, and other household appliances.
- Industrial Fabrication: Suitable for creating storage units, machinery components, and other industrial fabrications.
Product Specifications
The following table shows the chemical composition and mechanical properties of Gi Steel Sheet, according to the JIS standards:
|
Technical Standard |
ASTM DIN GB JIS3302 |
|
Grade |
SGCC SGCD or Customer's Requirement |
|
Type |
Commercial Quality/DQ |
|
Thickness |
0.13mm-4.0mm |
|
Width |
600mm-1500mm |
|
Type of Coating |
Hot Dipped Galvanized |
|
Zinc Coating |
30-275g/m2 |
|
Surface Treatment |
Passivation/ skin pass/ non-oiled/ oiled |
|
Surface Structure |
Zero Spangle/ Mini Spangle/ Regular Spangle/ Big Spangle |
|
ID |
508mm/610mm |
|
Coil Weight |
3-10metric ton per coil |
|
Package |
Standard export package or customized |
|
Hardness |
HRB50-71 (CQ Grade) |
|
HRB45-55 (DQ Grade) |
|
|
Yield Strength |
140-300 (DQ Grade) |
|
Tensile Strength |
270-500 (CQ Grade) |
|
270-420 (DQ Grade) |
|
|
Elongation Percentage |
22 (CQ Grade thickness less 0.7mm) |
|
24 (DQ Grade thickness less 0.7mm) |
|
Mechanical Properties |
Yield Strength (MPa) |
Tensile Strength (MPa) |
Elongation (%) |
Hardness (HRB) |
|
SGCC |
205 min |
270 min |
27 min |
55 max |
|
SGCD |
140 min |
270 min |
38 min |
50 max |
|
SGCE |
120 min |
270 min |
40 min |
45 max |

Product Advantages
To demonstrate the advantages of our Gi Steel Coil over our competitors, we have prepared a comparison chart that shows the difference in quality and performance. As you can see from the chart, our Gi Steel Coil has higher zinc coating thickness, lower spangle size, better adhesion, and smoother surface than our competitors. These factors contribute to the superior corrosion resistance, aesthetic appearance, and durability of our product. You can also see some examples of our product applications in the images below the chart.

Advantage
- Corrosion Resistance: The zinc coating effectively protects the steel from rust and environmental wear.
- Longevity: Galvanized sheets have an extended lifespan, reducing the need for frequent replacement.
- Eco-Friendly: Gi Sheet Coils are recyclable, contributing to sustainable building practices.
- Versatility: Easily fabricated and adapted to various uses due to their malleable nature.
Gi Sheet Coil in China
China is a key player in the production of Gi Steel Sheets, known for its advanced manufacturing capabilities and quality control. Utilizing state-of-the-art galvanizing technology, Chinese manufacturers produce Gi Steel Coils that meet global quality standards. The combination of efficient production, cost-effectiveness, and adherence to environmental and quality standards makes Gi Steel Sheets from China highly competitive in both domestic and international markets.

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