3003 aluminum coil is a premium Al-Mn alloy material, renowned for its balanced corrosion resistance, formability, and mechanical strength. Below is a comprehensive breakdown of its chemical composition, mechanical properties, and core application fields, tailored to industry standards and practical use cases.
I. Chemical Composition
The precise chemical composition of 3003 aluminum coil is as follows (all values are weight percentages, wt%):
|
Aluminum (Al) |
≥96% |
|
Manganese (Mn) |
1.0%–1.5% (core alloying element for enhanced strength) |
|
Silicon (Si) |
≤0.6% |
|
Iron (Fe) |
≤0.7% |
|
Copper (Cu) |
0.05%–0.20% |
|
Zinc (Zn) |
≤0.10% |
|
Other impurities |
Single impurity ≤0.05%, total impurities ≤0.15% |
II. Mechanical Properties
The mechanical properties of 3003 aluminum coil are temper-dependent. Key performance indicators for the commonly used annealed state (O temper) are listed below:
|
Tensile strength (σb) |
142MPa–178MPa |
|
Yield strength (σ0.2) |
≥115MPa |
|
Elongation at break (δ) |
20%–30% |
|
Brinell hardness (HB) |
45–70 |
III. Application Fields
With its excellent corrosion resistance, superior formability, and moderate structural strength, 3003 aluminum coil is widely adopted across high-growth and traditional industries:
1. New Energy Vehicle Sector
Used to fabricate battery casings, battery covers, and automotive water-cooled plates. Its reliable thermal conductivity and corrosion resistance ensure battery operational safety and meet strict heat dissipation requirements.
2. Construction Industry
Applied in building curtain walls, door/window frames, and decorative trim strips. Corrosion-resistant, aesthetically versatile, and easy to process, it adapts to diverse architectural styles and outdoor environments.
3. Electronics & Electrical Sector
Manufactured into electronic device housings, heat sinks, and circuit board substrates. Its stable electrical conductivity and anti-corrosion performance boost product durability and operational reliability.
4. Chemical Industry
Utilized for chemical equipment, storage tanks, and pipeline cladding. It resists erosion from mild chemical media, ensuring long-term stable operation of industrial facilities.
5. Aerospace Field
Applied in lightweight aircraft skins and auxiliary structural components. It strikes an ideal balance between low density and sufficient strength to enhance aircraft fuel efficiency.
6. Solar & Wind Power Generation Sectors
Used to produce solar panel brackets and wind turbine auxiliary parts. Its high strength and weather resistance make it suitable for long-term outdoor deployment.
7. Energy Storage Sector
Fabricated into energy storage battery enclosures and structural components, ensuring the safety and energy efficiency of stationary and mobile energy storage systems.
8. Civil Hardware & Daily Necessities
Made into kitchenware, tableware, and household appliances. It combines sleek aesthetics with practical functionality for consumer applications.
Note: The above performance and application data refer to 3003 aluminum coil in standard annealed state. Actual performance may vary slightly depending on production processes, post-processing tempers, and customized specifications.
Ⅳ. Reasons to Choose Jinan Zhongfu Aluminum 3003 Aluminum Coils
1. Rigorous Quality Assurance
We strictly comply with international standards (ASTM, JIS, GB) and implement full-cycle quality control—from high-purity raw material sourcing to finished product inspection. Each batch of 3003 aluminum coil is accompanied by a detailed test report, ensuring consistent chemical composition and mechanical performance.
2. Professional Technical Strength
Our experienced engineering team provides tailored support, including material selection guidance, temper customization advice, and processing optimization solutions. We help customers reduce production scrap rates and improve manufacturing efficiency based on their specific application scenarios.
3. Robust Production Capacity & Inventory
With an annual output of 100,000 tons, we maintain sufficient stock of common 3003 aluminum coil specifications (thickness: 0.1–10mm; width: 1000–2000mm). Emergency orders for standard sizes are fulfilled within 3–7 days, ensuring supply chain stability for global clients.
4. Factory-Direct Pricing Advantage
As a direct manufacturer, we eliminate intermediate distributor markups, offering transparent and competitive pricing. Customers can reduce procurement costs by 5–15% compared to sourcing from trading companies, without compromising product quality.
5. Flexible Customization & One-Stop Service
We support custom production for thickness, width, length, and surface treatments (e.g., fluorocarbon coating, anodizing). Our one-stop service covers consultation, order placement, production, international logistics (sea/air/land transport), and after-sales tracking, ensuring a seamless cooperation experience.
6. Proven Global Reputation
We export our products to over 30 countries and regions, including the USA, EU, Southeast Asia, and the Middle East. Serving more than 100 distributors and 3,000+ end customers, we have achieved a customer repurchase rate of over 85%, backed by ISO9001, SGS, and BV certifications.
Ready to Source High-Quality Aluminum Coils?
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