Aluminum Coil

What Is Aluminum Coil?

Aluminum coil can be produced from aluminum ingots or other forms of raw aluminum (called cold rolling or direct cast) or from a smelting process directly through rolling (called continuous cast). These sheets of rolled aluminum are then rolled up, or coiled, around a core. These coils are densely packed, making them easier to ship and store when compared to aluminum in sheet form. Coil is used to manufacture an almost unlimited range of components used in an extensive number of industries.

Advantages of Aluminum Coil

Aluminum coil has a commercial benefit because it is far less expensive than other metals like copper.

Aluminum coil is a good electrical and thermal conductor. Because of these qualities, it is often found in appliances and wiring.

Aluminum coil is more flexible than steel.

Aluminum coil is relatively simple to make.

There are numerous alloys, widths, and temper criteria for coiled aluminum. Its surface finish can also be specified to order.

The fact that aluminum coils are recyclable is an additional benefit. Aluminum is expensive to extract from its ore, making recycled aluminum far more affordable than raw aluminum.

The advantages of aluminum for the environment are clear because of aluminum’s recyclability. As a result, coiled aluminum is a sustainable material.

Aluminum coil is perfect for many applications, ranging from its use as coating for decoration to its frequent use in automotive industries, due to its great corrosion-resistance and strength.

Aluminum coils are frequently utilized in the construction of most modes of transportation, including cars.

Aluminum coil is perfect for numerous industrial tasks thanks to its lightweight and sturdy structure.

Hot/Cold Rolled Aluminum Coils
GNEE produces aluminum coils with strict quality control over thickness tolerance, surface flatness, and mechanical properties. With advanced hot rolling, cold rolling, and coating lines, we can...
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1100 Aluminum Coil
1100 aluminum coil is pure aluminum, with excellent forming characteristics. 1100 is a typical industrial pure aluminum (99.00% aluminum) and cannot be heat treated. The 1100 aluminum coils are...
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1060 Aluminum Coil
Another typical product from the 1000 series of aluminum alloys is the 1060 aluminum coil. A small amount of copper is added to pure aluminum to create the 1060 aluminum alloy, which has...
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1050 Aluminum Coil
Width: 40-2650 mm
Thickness: 0.10-8 mm
Production capacity: 8-5000 tons
Recommended uses: CTP and PS plates, aluminum composite panels
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5052 Aluminum Coil
There are 2.5% magnesium and 0.25 percent chromium in a 5052 aluminum alloy coil. It is appropriate for the marine environment, aviation fuel tanks, architecture, manufacturing, and more because...
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5083 Aluminum Coil
As a professional 5083 aluminum supplier, we supply a wide range of 5083 aluminum coil , which is known for its excellent corrosion resistance. Aluminum 5083 is a marine grade aluminum sheet...
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6061 Aluminum Coil
Our rolling factory can produce 6061 aluminum coils with the width, gauge, tempered grade, and surface treatment that the customer specifies. In addition to rolled coils, alloy 6061 is frequently...
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Embossed Aluminum Coil
GNEE embossed aluminum coil suppliers
Width: 800 mm-1800 mm
Payment: T/T, L/C
Product Origin: China
Color: Customized
Shipping Port: Any port in China...
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5454-H32 Aluminum Coil
5454-H32 aluminum coil is a popular material for petroleum, marine, automotive, and machinery applications.It outperforms 1100 and 3003 aluminum in terms of formability, corrosion resistance,...
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5083 H321 H323 Aluminum Coil
5083 H321 aluminum coil is a particularly adaptable marine-grade aluminum alloy.It is commonly used in shipbuilding, ship hulls, docks, and other saltwater-resistant components.This type of alloy...
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5052 H32 H34 Aluminum Coil
5052 H32 H34 aluminum alloy coil contains 2.5 percent magnesium and 0.25 percent chromium. Its lightweight and corrosion-resistant properties make it suitable for the marine environment, aircraft...
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1100 H14 3003 H14 Aluminum Coil
Specification alloys for general forming operations are 3003-H14 and 1100-H14 aluminum coil. From material selection to final product, each batch of GNEE products undergoes rigorous testing to...
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Why Choose Us

Our factory
GNEE (Tianjin) Multinational Trade Co., Ltd. has 5 subsidiaries located in Anyang, Tianjin, Hong Kong, Singapore and other countries and regions. The headquarters is located in Anyang City, the hometown of Oracle, the site of the world cultural heritage "Yin Ruins" and one of the eight ancient capitals in China.

Quality control
The company strictly implements the 6S management system and passed the ISO9001 international quality system certification and GJB9001B-2009 national military standard quality management system certification in 2016.

Advanced equipment
Has an advanced factory of more than 35,000 square meters, equipped with advanced production equipment. We use our excellent technology and professional team to ensure the efficiency and quality of the production process.

High demand
We have long-term relationships with customers and distributors from more than 100 countries in Europe, Asia, America and Australia, stable product quality, global exports, reasonable prices, can undertake 3-2000 tons aluminum foil raw material orders, can be reasonable purchase!

24h online service
We try and respond to all concerns within 24 hours and our teams are always at your disposal in case of any emergencies.

Types of Aluminum Coil

01/

Rolled aluminum coils
Rolled aluminum coils are one of the most common types of aluminum coils on the market. They are manufactured by passing aluminum ingots through a series of rollers. The process not only shapes the aluminum into coils but also enhances its strength and flexibility. Rolled aluminum coils are used in a wide range of industries, including automotive, construction, and aerospace.

02/

Embossed aluminum coils
Embossed aluminum coils are created by applying pressure to the surface of aluminum sheets, creating unique patterns and textures. This not only enhances the aesthetics but also adds to the functionality of the aluminum. The embossing process improves grip and makes the material suitable for various applications.

03/

Anodized aluminum coils
Anodized aluminum coils are known for their exceptional corrosion resistance and durability. The anodization process involves immersing the aluminum in an electrolyte solution and applying an electric current, which forms a protective oxide layer on the surface. This layer not only enhances the coil’s lifespan but also allows for coloring the aluminum in various shades.

04/

Aluminum fin coils
Aluminum fin coils are designed for specific applications, particularly in the heating, ventilation, and air conditioning (hvac) industry. These coils feature a series of aluminum fins attached to copper tubes. This design maximizes heat transfer efficiency, making them ideal for cooling and heating systems.

05/

Aluminum coil coatings
Aluminum coil coatings are designed to protect and enhance the aesthetics of aluminum coils. These coatings come in various types, including polyester, fluorocarbon, and polyurethane, each offering different levels of protection and visual appeal.

06/

Aluminum clad coils
Aluminum clad coils are a combination of aluminum and other materials like copper or stainless steel. These composite coils offer the advantages of both materials, making them suitable for specialized applications.

Application of Aluminum Coil

Building and construction

Aluminium coil serves as a versatile material employed in diverse building and construction applications, ranging from interior design to exterior cladding. It’s lightweight and strength offer great versatility, making it an ideal choice for roofing materials, window frames, facade panels and more. Its superior durability also makes the aluminium coil perfect for many different outdoor and indoor projects. It is resistant to external weather conditions like sun exposure, rain, snow and high temperatures, so it can be used confidently without worrying about wear or rust.

Transportation

Aluminium coils have become increasingly popular in transportation due to their lightweight nature and corrosion resistance. These properties make them well-suited for vehicular construction, adding minimal weight while offering superior structural integrity. They also greatly reduce noise levels and protect against outdoor elements like rain, snow, wind, and debris. Furthermore, the aluminium coil is often used in trailer body liners due to its durability and flexibility; thus, making it the ideal material for transportation applications.

Electrical and electronics

Aluminum coil has a variety of applications in the field of electrical and electronics. Its malleability, lightweight and corrosion-resistant properties make it ideal for household appliances, electronic components, switchgear housing, motor insulation and transformers. It also enables the rapid transfer of heat for efficient cooling systems. Consumer electronics, such as mobile devices or televisions, widely employ it, necessitating notably smaller sizes than what traditional manufacturing techniques permit. The coil can also reduce electromagnetic interference by providing shielding from outside sources.

Consumer goods

Aluminium coils are also used to manufacture consumer goods such as packaging materials, kitchen utensils, and toys. The corrosion-resistant nature of aluminium makes it a preferred material for packaging food products. Manufacturers utilize aluminium coils to produce cans, bottles, and foil packaging, with the material’s inherent shaping capability positioning it as a preferred choice for crafting kitchen utensils and various household items.

Industrial applications

Aluminium coils have a wide range of industrial applications. They are used as sheet metal for various industrial equipment, such as air conditioning and ventilation systems, containers, and storage tanks. Its malleability makes it ideal for forming complex parts without welding or joining processes.

How to Maintain Aluminum Coil

Regular Cleaning

One of the most important aspects of maintaining your aluminum coil is regular cleaning. Over time, the coil can accumulate dirt, dust, and other debris, which can compromise its performance. Cleaning the coil on a regular basis not only ensures its longevity but also helps to maintain its appearance. You can use a soft cloth or sponge, mild detergent, and warm water to clean the surface of the coil. Avoid using abrasive cleaners, as they can scratch or damage the protective coating on the aluminum.

Avoiding Physical Damage

While aluminum coils are durable, they are not impervious to physical damage. Dropping heavy objects on the coil or exposing it to excessive force can result in dents or deformation. To prevent physical damage, it is important to handle the coil with care during transportation, installation, and usage. Use appropriate equipment and techniques to ensure proper handling and avoid applying excessive pressure on the coil. Additionally, consider using protective covers or padding to shield the coil from potential impacts or collisions.

Preventing Corrosion

Aluminum is naturally resistant to corrosion. However, certain conditions can accelerate the process of corrosion, such as exposure to saltwater or contact with other metals. To prevent corrosion, it is recommended to apply a protective coating to the aluminum coil. There are various types of coatings available, including paint, powder coating, and anodizing. These coatings act as a barrier, protecting the coil from environmental factors and potential damage. Regular inspection of the coil is also essential to identify any signs of corrosion early. If corrosion is detected, it should be addressed promptly to prevent further damage.

Regular Inspection and Maintenance

To ensure the optimal performance of your aluminum coil, regular inspection and maintenance are crucial. Inspect the coil for any signs of wear and tear, such as scratches, dents, or loose connections. Pay attention to areas where the coil is joined to other components, as these junctions are more prone to damage. If any issues are detected, take timely measures to address them. This may involve repairing or replacing damaged parts, tightening loose connections, or contacting a professional for assistance. Regular maintenance will help to identify and resolve any potential problems before they escalate.

Process of Aluminum Coil

Smelting
Extractive metallurgy involves the use of smelting to obtain metal from its ore. During smelting, heat and a chemical reduction agent are applied to break down the ore, expelling other elements as gases or slag (the solid waste that forms during the smelting process), leaving the pure metal behind. Typically, the reduction agent is a carbon source such as coal, coke, or charcoal. For aluminum, the hall-héroult process is used to extract it from its oxide, alumina, during smelting. The bayer process is employed in alumina refineries to extract alumina from bauxite ore.

Hot rolling
Hot rolling is a commonly employed technique for reducing the thickness of aluminum slabs. This process involves heating the metal above its recrystallization temperature to facilitate deformation and shaping. The heated metal is then passed through a series of rolls to reduce its thickness, ensure uniformity, and achieve specific mechanical properties. During hot rolling, the aluminum coil is processed at temperatures around 1700 degrees fahrenheit.

Cold rolling

Cold rolling is a specialized process in the metalworking industry where aluminum strips are passed through rollers at temperatures below their recrystallization point. This method of "cold rolling" compresses and shapes the metal, increasing its yield strength and hardness. The key distinction between cold rolling and hot rolling is that cold rolling occurs below the work-hardening temperature (the temperature at which a material hardens without recrystallizing), whereas hot rolling takes place above this temperature.

Annealing

Annealing is a heat treatment process used primarily to enhance the malleability and reduce the rigidity of a material. This process works by decreasing dislocations in the material's crystal structure, making it softer and more flexible. Annealing is commonly performed after a material has undergone hardening or cold working to prevent brittle failure and to improve its workability for subsequent operations.

Slitting and cutting

Aluminum coils can be produced as one continuous, long roll. To convert these into smaller, more manageable rolls, they must be sliced. This slicing is accomplished using slitting equipment equipped with extremely sharp blades to ensure precise cuts. The operation requires considerable force, and the slitting blades cut through the aluminum when the applied force surpasses the material's tensile strength.

How to Choose a Aluminum Coil

The importance of alloy selection
One of the critical factors in choosing the right aluminum sheet is selecting the appropriate alloy. Aluminum alloys vary in terms of their properties, which can significantly impact the performance of the coil in your application.
1. Identify your requirements
Consider the environmental conditions the coil will be exposed to.
Determine whether the coil will need to withstand corrosive elements.
Evaluate the desired strength and durability of the coil.
2. Alloy series
Aluminum alloys are categorized into series, such as the 1000, 3000, and 5000 series.
Each series has distinct characteristics, making them suitable for specific applications.
3. Temper
Aluminum coils can be heat-treated to achieve different levels of hardness.
The temper of the coil should match the requirements of your project.

Coil thickness and width
The thickness and width of the aluminum coil are critical considerations that directly impact its performance.
1. Thickness
Thicker coils offer increased strength and durability.
Thinner coils are more flexible but may be less robust.
Choose a thickness that aligns with your project’s needs.
2. Width
The width of the coil determines how much surface area it can cover.
Consider the size and dimensions of your project when selecting the width.

Surface finish and coating
The surface finish of the aluminum coil is another aspect that should not be overlooked. Depending on your application, you may require a specific surface finish or coating to enhance performance.
1. Surface finish
Options include mill finish, brushed finish, and anodized finish.
The choice depends on the desired aesthetics and functionality.
2. Coating
Coatings can provide protection against corrosion and uv radiation.
Select the appropriate coating based on the environmental conditions the coil will face.

Cost considerations
While quality is paramount, it’s also crucial to consider your budget. Aluminum coils come in a wide range of price points, so it’s essential to strike a balance between quality and affordability.

Our Factory

GNEE (Tianjin) Multinational Trade Co.,Ltd is a modern supply chain enterprise with aluminum processing, sales and distribution as its core industries. It was established in 2008. After about 18 years of development, it has customers in more than 100 countries and regions around the world. It has more than 200 employees, a total investment of US$30 million, and a factory area of more than 35,000 square meters. The company specializes in the production of high-quality aluminum products, including aluminum foil, aluminum tubes, aluminum alloy plates, aluminum rods, aluminum coils, etc.

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FAQ

Q: What is an aluminum coil used for?

A: Aluminum coil is found in a range of applications from housing siding, trim, gutters, and roofing to cans, lids, caps, bottles, and other food packaging, appliances and electronics. Because it is a lightweight and durable material, it is also seen in the automotive industry.

Q: Are aluminum coils better than copper?

A: The aluminum coils have an oxidation protection which copper does not offer. All-aluminum coils prevent formicary corrosion and will not rust as much over time like copper. The aluminum coils are also more resistant to pinhole leaks giving a longer lifespan to your HVAC system.

Q: What is the difference between aluminium coil and aluminium sheet?

A: When looking at the three types of aluminium products, the only difference is the thickness. The thickest product being aluminium plate followed by sheet and finally, coil being the thinnest.

Q: What is the difference between aluminium foil and coil?

A: The habit of thickness below 0.025mm is called aluminum foil paper, the thickness of 0.2mm or less is called aluminum foil, and the thickness of more than 0.2mm is called aluminium coil.

Q: Does an aluminum coil rust?

A: Aluminum would be better because its much lighter and doesn't rust. Aluminum does corrode though, especially if exposed to seawater.

Q: How thick is aluminum coil?

A: Most coils are between 0.2 mm and 2 mm thick.

Q: How are aluminium coils made?

A: Aluminum coil can be produced from aluminum ingots or other forms of raw aluminum (called cold rolling or direct cast) or from a smelting process directly through rolling (called continuous cast). These sheets of rolled aluminum are then rolled up, or coiled, around a core.

Q: How do you clean aluminium coils?

A: Most manufacturers recommend only water to clean aluminum coils. The wrong chemicals can eat them up. As with any indoor coil cleaning, if you do use a chemical – make sure it is approved for use on indoor coils.

Q: Can Aluminium coil be welded?

A: With the MIG-MAG process, it is even possible to easily weld aluminum-based alloys with good results.

Q: How wide is an aluminum coil?

A: Aluminum coils are available in widths of 20″, 24″, and 48″.

Q: What is aluminum coil coating?

A: Coil coating is an industrial process used to produce precoated aluminium coils. There are different types of coatings: anodizing, paint, liquid or powder coating. This method is used to promote the use of aluminium in the most environmental conditions.

Q: How to calculate aluminium coil length?

A: We can calculate the length of the coil as follows: L = (1000 / (1000 x 1 x 2700)) x 10^6 = 370 meters.

Q: Can an aluminum coil be painted?

A: Painted aluminum trim coil matches the soffit system and is used for custom flashing projects or hard-to-finish areas. Coil material is painted on both sides to satisfy any custom flashing requirements.

Q: What are the advantages of an aluminium coil?

A: The advantages of using an aluminium coil are numerous; it's lightweight but strong enough to handle even heavy-duty applications without compromising its structural integrity. Aluminum won't corrode or rust, making it an ideal material for use in areas exposed to moisture.

Q: What are the different types of aluminum trim coils?

A: Aluminum trim coil is available in a variety of finishes, including painted, anodized, and mill finish. The finish that you choose will depend on the desired appearance and performance of the trim coil.

Q: Which is better copper coil or aluminium coil?

A: Copper coils are stronger and more durable than aluminium coil. Aluminium coils are not stronger as the copper coils, and hence are less durable. In the case of copper coils, more copper material is required to make a coil. In the case of aluminium coils, less aluminium material is required to make a coil.

Q: How to calculate the weight of an aluminium coil?

A: Weight = thickness * width * length * density / 1000000 (in mm), for example: a 2.5 thick 1060 aluminum plate, theoretical weight = 2.5 * 1220 * 2440 * 2.71/1000000 = 20.16KG.

Q: What is the raw material of aluminum coil?

A: The 6000 series aluminum coil, represented by the 6061 alloy, is composed mainly of silicon and magnesium. 6061 aluminum is a cold-treated forging product suitable for applications requiring high oxidation and corrosion resistance.

Q: What is the density of aluminium coil?

A: The density of aluminium is about 2,710kg/m3. The density of the alloys of aluminium does not vary widely from this figure ranging between 2,640kg/m3 and 2,810kg/m3.

Q: What is coil coated aluminum?

A: Coil-coated aluminum, also known as pre-painted steel, involves the application of organic coatings to steel coils before they are formed into finished products. This process enhances the steel's corrosion resistance and aesthetic appeal, making it a preferred choice in many industries.

As one of the most professional aluminum coil manufacturers and suppliers in China, we're featured by quality products and competitive price. Please rest assured to buy aluminum coil for sale here from our factory.

Aluminum Sheet Metal, Aluminum Sheet/Plate 3003 H14, Aluminum 6061 T6 Wide Flange Beam