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1100 Aluminum Coil

1100 is a commercially pure aluminum alloy, containing 99.0% to 99.95% aluminum, with small amounts of silicon, iron, copper, manganese, zinc, titanium, and other elements.

1100 aluminum coil is the highest industrial purity aluminum, and due to its controlled copper content, it is also the strongest alloy in the 1xxx series, while retaining most of the characteristics of pure aluminum: excellent electrical conductivity, corrosion resistance, and formability.

1100 aluminum coil cannot be strengthened by heat treatment. Due to its excellent plasticity, corrosion resistance, and electrical and thermal conductivity, it is widely used in construction, industry, and daily consumer fields.

1100 Aluminum Coil

1100 aluminum coil is a soft, versatile, and corrosion-resistant alloy suitable for forming-intensive applications requiring high electrical conductivity and weldability (but not strength). It is available in various tempers, thicknesses, and surface treatments, and is widely used in HVAC, chemical/food processing, decorative trims, and metal products.

1100 aluminum coil remains indispensable for applications prioritizing formability and corrosion resistance over high strength. Its adaptability in different tempers and compatibility with various manufacturing processes have consolidated its status in heat treatment, construction, and consumer sectors.

1100 Aluminum Coil Standard Specifications and Availability

Item Description
Thickness Range 0.1 mm – 300 mm (common range: 0.2 mm – 8 mm)
Width Range 100 mm – 2620 mm (standard: 500 mm – 2500 mm)
Temper O, F, H12–H38, H111, H112
Surface Treatment Mill Finish, Anodized, Polished, Embossed, Coated
Minimum Order Quantity 1–5 tons
Delivery Time Typically 3–5 weeks for full coil orders
Standards ASTM B209/B210/B211/B221; ISO 6361; AMS-QQ-A-250/1, etc.

1100 Aluminum Coil Mechanical Properties and Tempers

1100 coil is available in various tempers, such as O (annealed), H12, H14, H16, H18, and H19. Here are typical property ranges:

Alloy-Temper Tensile Strength
(ksi) 		Yield Strength
(ksi) 		Elongation
(%)
1100-O 13 5 30
1100-H14 18 14 3
1100-H18 24 22 2

1100 Aluminum Coil Physical and Functional Properties

Thermal Properties:

Melting Range: 643–657°C (1190–1215°F)

Thermal Conductivity: 222 W/m·K (suitable for heat exchangers)

Electrical Properties: 59–62% IACS conductivity (suitable for busbars)

Corrosion Resistance: Exhibits excellent atmospheric and chemical corrosion resistance due to the formation of an oxide layer.

Density: 2.71 g/cm³ (lightweight, suitable for transport-sensitive applications).

Chemical Composition Of 1100 Aluminum Alloy

Element Percentage By Weight
Aluminum (Al) 99.0 – 99.95%
Iron (Fe) 0 – 0.95%
Silicon (Si) 0 – 0.95%
Copper (Cu) 0.05 – 0.20%
Manganese (Mn) 0 – 0.05%
Zinc (Zn) 0 – 0.1%
Other 0 – 0.15%

1100 Aluminum Coil Features

Excellent Formability

1100 aluminum alloy is one of the higher purity aluminum alloys on the market. Although it has low strength, it offers excellent formability. In the annealed and tempered state, the alloy is very soft and highly suitable for manufacturing processes such as spinning, bending, stamping, roll forming, and drawing.

Strengthening Through Cold Working

1100 aluminum cannot be heat treated, but its hardness can be increased through cold working processes. Its strength also improves at subzero temperatures. We can provide industrial-grade aluminum coil, foil, sheet, and wire products in the temper conditions required.

Thermal Conductivity

1100 aluminum coil possesses excellent thermal and electrical conductivity. Due to these superior thermal properties, it is widely used to manufacture heat exchanger components such as fins and radiators used in electronic devices.

Good Corrosion Resistance

The corrosion resistance of 1100 aluminum makes it very suitable for producing heavy-duty structures and components that require weather resistance. These parts include oil tank fittings in pipeline applications, train car components, ship parts, building materials, and even aircraft gun mount components.

1100 Aluminum Coil Surface Treatments

Surface Treatment Type Description
1100 Mill Finish Aluminum Coil 1100 Mill Finish Aluminum Coil retains its natural metallic sheen and surface texture after rolling, with no additional treatment. It offers excellent flatness and workability, making it suitable for secondary processing such as painting, laminating, or deep drawing.
1100 Anodized Aluminum Coil 1100 Anodized Aluminum Coil undergoes an electrochemical process that forms a dense oxide layer on the surface, significantly improving corrosion resistance, surface hardness, and wear resistance. It also provides decorative appeal and is widely used in architectural finishes and electronic enclosures.
1100 Polished Aluminum Coil 1100 Polished Aluminum Coil is treated by mechanical or chemical polishing to achieve a bright, reflective surface with high gloss. It is ideal for applications such as lighting reflectors, cosmetic packaging, and elevator panels where aesthetics and reflectivity are important.
1100 Embossed Aluminum Coil 1100 Embossed Aluminum Coil is patterned with textures like five-bar tread, orange peel, or diamond pattern through rolling with embossed rollers. This enhances its visual appeal, rigidity, and anti-slip properties, making it suitable for interior paneling, flooring, and refrigeration lining.
1100 Coated Aluminum Coil 1100 Coated Aluminum Coil is finished with organic coatings such as PE or PVDF paint, offering excellent weather resistance, UV protection, and vibrant color options. It is widely used in building facades, aluminum composite panels, signage, and ceilings.

1100 Aluminum Coil Common Applications

1100 Aluminum Coil Application Fields and Examples

Application Field Product Name Application Description
Construction Industry Curtain Wall Aluminum Panels Curtain wall aluminum panels use 1100 aluminum coil as the base material. Due to its good corrosion resistance and machinability, it can be formed by sheet metal shaping and surface spraying to create various shaped architectural curtain wall panels, widely used in high-rise building exterior decoration.
Construction Industry Decorative Materials Decorative materials (such as ceilings and interior aluminum ceiling tiles) use 1100 aluminum coil for roll coating and embossing treatments. The finished products are lightweight, beautiful, and easy to install, making them especially suitable for interior ceilings and commercial space decoration.
Construction Industry Aluminum Composite Panel Substrate Aluminum composite panel substrates typically use 1100-H18 temper aluminum coil, which has good rigidity and weather resistance. It is a common upper metal panel material for composite materials such as exterior advertising boards, exhibition panels, and commercial signage.
Transportation Vehicle Body Skin Vehicle body skins made from 1100 aluminum coil benefit from its light weight, rollability, and good corrosion resistance. It is suitable for the outer skin of trucks, refrigerated vehicles, and buses, reducing vehicle weight while enhancing corrosion resistance.
Transportation Road Signs Road signs are commonly made from 1100-H14 or H18 temper aluminum coil. These products have good reflective film adhesion and flatness, suitable for permanent or temporary signs on highways, urban roads, and construction areas.
Transportation Ship Components Ship components made from 1100 aluminum coil include interior cabin panels, ceilings, and non-load-bearing shells. Due to its strong seawater corrosion resistance and ease of processing, it is a common material for small boats and ship interior decoration.
Electronics and Daily Products Electrical Enclosures Electrical enclosures such as battery cases, transformer covers, and heat sinks use 1100 aluminum coil for its excellent electrical and thermal conductivity and ease of forming, making it suitable for electrical structural parts with high thermal management and formability requirements.
Electronics and Daily Products Lamp Reflectors Lamp reflectors use 1100 aluminum coil with polished or anodized surfaces to achieve high reflectivity. They are widely used in downlights, energy-saving lamps, and industrial lighting equipment to improve lighting efficiency and aesthetics.
Electronics and Daily Products Cookware (Pots and Lids) Cookware such as frying pans, saucepans, and food packaging aluminum lids generally use 1100-O temper aluminum coil because it is non-toxic, safe, and has good ductility, suitable for deep drawing and spinning forming processes.
Electronics and Daily Products Printing Plates Printing plates use 1100 aluminum coil as the base material for CTP (Computer-To-Plate) plates, featuring high flatness and good surface treatment performance, making it an indispensable raw material in the offset printing industry.

What Other Fields Use 1100 Aluminum Coil?

Advantages and Disadvantages of 1100 Aluminum Coil

Advantages of 1100 Aluminum Coil

Advantage Category Description
Corrosion Resistance Easily forms a dense oxide film on the surface, effectively resisting atmospheric and moisture corrosion; anodizing further enhances protection
Workability Excellent ductility, suitable for stamping, spinning, welding (gas welding, arc welding), and brazing; high forming efficiency and low tool wear
Electrical and Thermal Conductivity Good electrical and thermal conductivity, ideal for radiators and conductive components
Environmental and Safety Performance Non-toxic material compliant with food contact standards; widely used in food packaging, cookware, and beverage sealing
Recyclability 100% recyclable, requiring only about 5% of the energy needed for primary aluminum smelting, making it eco-friendly, low-carbon, and energy-efficient

Disadvantages of 1100 Aluminum Coil

Aluminum Coil 1100 Comparison to Competing Alloys

Property 1100 1050 3003
Al Purity 99.0% 99.5% 98.6%
Tensile (O) 90 MPa 75 MPa 110 MPa
Typical Use Deep drawing Chemical tanks Structural panels

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