Hot-dip Galvanized steel also known as gi coil, is defined as a carbon steel sheet coated with zinc on both sides. galvanized steel: continuous hot dipping and electro-galvanizing. The coating creates a strong rust resistance and prolongs the life of the steel coils.
Overview
Galvanized steel coils are produced in two main processes: hot-dipped galvanized and electro-galvanized. It can be available in thicknesses from 0.13 to 0.8 mm and widths from 6 to 12.5 cm, with a maximum length of 10 feet (3 m) when unfolded.
Galvanised coil, a thin steel plate that is dipped into a molten zinc bath so that a layer of zinc adheres to its surface. A thin layer of zinc is applied to the steel to act as a barrier between the steel and the environment. The finish is applied by passing the steel through a molten pool of zinc at a high temperature. It is mainly produced by the continuous galvanising process, whereby coils of steel are continuously dipped in a bath of molten zinc to produce galvanised steel; alloyed galvanised steel. This type of stainless steel sheet is also manufactured by the hot dipping method, but immediately after leaving the bath it is heated to around 500°C to produce an alloyed coating of zinc and iron. This galvanised steel coil has good paint adhesion and weldability.
Galvanized Steel Coils are represented by cold and hot-rolled coils with a zinc coating, which helps to protect the steel against atmospheric corrosion. Galvanized steel coils from KLS are successfully used in industries with stringent requirements for corrosion resistance, durability, strength, and appearance, and can be formed or have various coatings applied. The key standards to be followed for the production of GI coils.
Key standards in the production include EN 10346，DX51D (Europe), AASTM A653 (USA), Q195 (China). Manufacturers also have their own original standards.
Features
Corrosion Resistance
Galvanized steel coil is renowned for corrosion resistance, with the protective zinc layer that forms a dense barrier against rust and provides sacrificial protection even when damaged.
Cold Bending and Welding Properties
Made from low carbon steel, galvanised coil offers excellent cold bending and welding characteristics, essential for manufacturing processes requiring shaping and secure joining of materials.
High Reflectivity
This steel coil has a high reflectivity rate, which is beneficial for applications needing thermal barriers, as it helps in reducing heat absorption and provides insulation.
Coating Resilience
The zinc coating on the galvanized steel coil is tough and forms a metallurgical structure with the steel, resisting mechanical damage during transport and use, ensuring longevity and reliability.
Specifications
| Product name | Galvanized steel coil |
| Materials | ASTM A653, DX51D, Q195 |
| Zinc Coating | 20-120g/m2 |
| Thickness | 0.13-0.8 mm |
| Width | 600-1250 mm |
| Coil ID | 508/610mm |
| Coil weight | 3-8 tons |
| Surface Structure | Mini/Big Spangle |
| Surface Treatment | Anti-Finger printing, Chromated, oiled/ non-oiled |
| Package | standard export package |
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Here is one of projects of galvanized steel coil from our exporting!
Uses
The galvanized steel sheet coil has been widely used for applications that need rust-resistant materials at a competitive price, ultraviolet light protection, and easy integration with any other materials. Industries that use hot-dipped galvanized steel products include but are not limited to:
Automotive Industry: manufacture of exterior and interior body parts, as well as repair of exterior public transport body parts, such as buses and trams
Construction Industry: manufacture of structural elements for low-rise buildings, light steel thin-walled structures, sandwich panels, heat pipe linings and various insulation, air conditioning systems, metal roofing panels, pressed panels, culvert pipes, entrance door cladding, elevators, PVC window and door reinforcement profiles, gypsum board Euro fasteners, etc.
Pipe and Tubular Industry
Outdoor Recreation Industry
Agriculture Industry
And hot-dip galvanizing of Galvanized Steel Coils is a process of coating steel with a thin zinc layer, which serves as a barrier between the steel and the environment. The finish is applied by passing the steel through a molten zinc bath at a high temperature. It can be widely used in transportation, light industry, civil and agriculture. Prepainted gi sheet is also an ideal building material for making roof tiles, partition wall steel profiles, T-shaped steel, columns, fire doors, air-conditioning ducts, and household appliances.
FAQ
For galvanized steel coils, the thin steel sheet is immersed in a molten zinc bath, and a layer of zinc thin steel sheet is attached to the surface. It is mainly produced by continuous galvanizing process, that is, the coil is continuously immersed in the molten zinc plating tank to make galvanized steel sheet; alloy galvanized steel sheet. This kind of steel plate is also made by hot dipping method, but it is heated to about 500°C immediately after being out of the tank to form a zinc-iron alloy film. This galvanized steel coil has good paint adhesion and weldability.
Galvanizing is one of the most effective and economical ways to protect bare steel from a corrosive environment. Not only does zinc act as a barrier between the steel and the environment, but it sacrifices itself in order to protect the steel sheet beneath. Sacrificial or galvanic protection occurs when two different metals come into contact and combine with water and oxygen. Zinc preferentially corrodes the iron in the steel. This protection prevents the steel from corroding in areas not covered by zinc. As a result, the spread of corrosion from cutting edges, drilling, etc. is minimized.
Cleaning grease, dirt, and paint from the surface of steel coils. Coils need to be uncoiled and welded for continuous processing.
Rinse off the cleaning solution.
Place in acid solution to remove oxidation skin.
Wash off the pickling solution.
Immerse the steel in a molten zinc bath and hold it for a period of time to galvanize.
Cool and roll the steel into coils for sale.
The galvanized steel coil price depends on the thickness of the zinc, the thickness of the steel coil, and the packaging method. If you want to buy cheap galvanized steel coils, please choose 20g/㎡ galvanized steel coils, 0.8mm thick steel coils, and simple packaging. Please visit Color Coated Steel Coil Prices: Influencing Factors or contact us for wholesale galvanized steel coil!
Galvanized regular sequins, galvanized 30g to 275g (g90). The thickness is from 0.15mm to 2.0mm. Ordinary spangle galvanizing can be used in hot and humid outdoor places. For example, fences, roofs, garage doors, etc.
Yes, it can be oiled. 8-20g per square meter. Oiling can prevent the galvanized sheet from oxidizing in a short time.
Yes, Galvanized Steel Coils are tested for the galvanized layer. We can send samples of galvanized steel coils to the laboratory required by customers.
The application range of galvanized steel coils is wide, and its advantage is that the anti-corrosion period is long. It is mainly used for home appliances, office boards, roof boards, car boards, buildings and color steel roll substrates.
Car plate
The use of car plates must be stamped first, and the steel plate is stamped into the shape and size required by parts.
Galvanized roof panel
The performance requirements of galvanized roof panels mainly include the mechanical properties of the material (tensile strength, yield strength, extension rate), coating performance (coating type, coating thickness and coating adhesion)
Appliance office board
Including air conditioners, washing machines, refrigerators, copies, etc., household galvanized plates are mainly used for general forming applications and stamping.
Matrix
Another use of galvanized steel coils is a substrate for color coating steel rolls. Color-coating steel rolls have polyethylene coating than galvanized rolls and are more durable.
Hot-galvanized steel roll. Immerse the thin steel rolls into the fuse of the zinc groove, and the surface is attached to a layer of zinc. At present, continuous galvanized technology is mainly used in production, and the rolled steel plates are continuously immersed into a galvanized galvanized steel coil in the melting galvanized groove.
There is a big difference between the amount of hot-dip galvanized plate and electroplating plate in galvanizing. The amount of hot-dip galvanized should not be too small. Generally, the smallest double-sided is 50-60g/m2, and the maximum is 600g/m2. The galvanized layer of the electroplating plate can be very thin, with a minimum of 15g/m2, but if the plating layer is thick, the production line speed is very slow, and it is not suitable for the technical characteristics of modern units. Generally, it is about 100g/m2. Because of this, the production of electroplating plates has been greatly restricted.
Hot-galvanized plates are generally thicker, about 10um, and strong anticorrosive ability. So it is a commonly used galvanized process. The electroplating plate is very thin, about 3-5um, the hot-dip galvanized surface is rough, and the light is severe. If there are bright flowers, the electroplatidascular layer is smooth and non-gloss (dirty).
The American ASTM A653 standard galvanized steel plate and coils have two different flower types
Ordinary zinc flowers are galvanized, galvanized 30g to 275g (G90). Thickness from 0.15mm to 2.0mm. Ordinary zinc flowers can be used for damp -heat outdoor places. For example, fences, roofs, garage doors, etc.
Galvanized zinc flower, such a shiny GI, 30g galvanized to 2755g (G90). The thickness ranges from 0.12mm to 0.25mm. It can also be used outdoors. Mainly exported to Southeast Asia and Africa. It is cheaper than GI with conventional sequins. This product can be processed later, such as processing into stone coating tiles.
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People are looking for a suitable and certified galvanized steel coil manufacturer or want to find a suitable supplier to buy galvanized steel coil in bulk at competitive prices according to their requirements.
KLS aims to provide you with the high quality and durable coils and sheets. We are the professional galvanized steel coil factory and supplier of coils and sheets in different sizes. To ensure that you get the best quality coils and sheets, we obtain these sheets through a thorough quality inspection process. We also follow all quality and safety guidelines and standards to various applications.
As a wholesale supplier, KLS Galvanized Steel Coils have its own factory to meet bulk orders in a timely manner. In addition, we will provide direct selling price to reduce your galvanized steel coil cost. If you are interested, please get in touch with us for details!
Professional production and sales of the hot dipped galvanized steel coils, galvanized sheet galvanized coil, thick galvanized coil, galvanized coil with flowers, low price, good effect, favorable price, main zinc sheet, galvanized patterned sheet, supply zinc sheet, reasonable price, focus on processing, professional production, spot supply. In addition, we offer other value-added services such as profiling, shearing, cutting, etc.
Our galvanized steel coils are exported to many countries and regions such as Russia, India, Iran, Germany, etc. Custom Prepainted Galvanised Steel Coil sizes are available upon request. Our value-added service capabilities include slitting, shearing, stretch leveling, drop stock, and metallurgical support.
If you would like to import high quality China galvanized steel coils, please contact us at
- E-mail: carson@klsfh.com
WhatsApp: +86 158 1691 5404
- Website: https://www.klscladmetal.com/
