A reliable option for industrial manufacturing is high-strength and
corrosion-resistant aluminum coils.
Core Characteristics
1: Lightweight and High Strength
With a density of approximately 2.7g/cm³—only 1/3 that of steel—it
is easy to handle and install. Meanwhile, alloying can enable it to
reach the strength level of medium-strength steel (e.g., the
tensile strength of 6-series alloys can exceed 300MPa).
2: Excellent Corrosion Resistance
A dense aluminum oxide (Al₂O₃) protective film easily forms on the
surface, resisting corrosion from water, air, and chemical media.
It is particularly suitable for humid or high-salt fog environments
(such as coastal buildings and chemical equipment).
3: Superior Processability
It can be formed into various shapes through processes such as
stamping, bending, stretching, and welding to meet the needs of
complex structures, such as automotive body panels and corrugated
sheets for construction.
4: Good Electrical and Thermal Conductivity
The electrical conductivity of pure aluminum coils is approximately
61% that of copper, making them commonly used in power cables.
Their high thermal conductivity suits them for radiators, heat
exchangers, and other applications.
5: Recyclability
Aluminum has a recycling rate of over 95%, and the energy
consumption for recycling is only 5% of that for primary aluminum
production, aligning with environmental protection and sustainable
development requirements.
| Industry | Typical Applications |
| Construction | Roof aluminum sheets, curtain wall panels, thermal insulation
aluminum cladding, water drainage systems (corrosion-resistant,
aesthetically durable). |
| Packaging | Food and pharmaceutical aluminum foil (e.g., aluminum foil lunch
boxes, pharmaceutical packaging), beverage cans (stamped from
3-series or 5-series aluminum coils). |
| Transportation | Automotive body panels, fuel tanks, ship decks (lightweight to
reduce fuel consumption, mainly 5-series and 6-series alloys). |
| Electronics & Electrical | Cable conductors, motor casings, heat sinks (pure aluminum or
3-series aluminum coils with excellent electrical and thermal
conductivity). |
| Aerospace | Aircraft skins, structural components (high-strength 6-series and
7-series alloys, such as 7075 aviation aluminum materials). |
| Mechanical Manufacturing | Industrial pipelines, pressure vessels, mold backing plates
(corrosion-resistant and easy to process). |
6:Purchase Considerations
Clarify Requirements: Select alloy grades (e.g., strength and corrosion resistance
requirements), conditions (hard or soft states), and surface
treatment methods according to the intended use.
Quality Inspection: Pay attention to thickness tolerance (within ±5%), sheet flatness
(whether it is smooth without waves), and surface quality (no
scratches or indentations).
Supplier Qualifications: Prioritize manufacturers certified by ISO to ensure chemical
compositions and mechanical properties comply with national
standards (such as the GB/T 3880 series).
7:Development Trends
Driven by Lightweight Demand: The growing demand for high-strength aluminum coils in new energy
vehicles, aerospace, and other fields is driving the development of
high-value-added alloys such as the 7-series (e.g., 7050).Green Manufacturing: The proportion of recycled aluminum coils (produced from scrap
aluminum) is increasing, reducing energy consumption and carbon
emissions.High Precision: Upgrades in cold-rolling technology have achieved micron-level
thickness control to meet the needs of precision fields such as
electronics and optics.With its comprehensive performance advantages, aluminum coils have
become an indispensable basic material in modern industry and will
play a more critical role in high-end manufacturing and the green
economy in the future.
PVDF / PE Coated Prepainted Aluminium Coil Custom Sizes Colors For Roofing
