3104 Alloy Aluminum Coil For Industry
Aluminum coils have become indispensable in numerous industrial sectors due to their exceptional combination of properties such as lightweight, corrosion resistance, and strength. Among the many aluminum alloys used in coil form, 3104 alloy aluminum coil stands out for its unique balance of workability, durability, and performance.
Unique Composition and Metallurgical Traits
The 3104 aluminum alloy belongs to the 3xxx series, characterized primarily by manganese as the main alloying element. This specific alloy contains a controlled percentage of magnesium which augments its strength while maintaining excellent formability. Here’s a concise breakdown of its chemical composition:
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance (~96%) |
| Magnesium (Mg) | 0.8 - 1.2 % |
| Manganese (Mn) | 1.0 - 1.5 % |
| Silicon (Si) | ≤ 0.6 % |
| Iron (Fe) | ≤ 0.7 % |
| Copper (Cu) | ≤ 0.1 % |
| Zinc (Zn) | ≤ 0.25 % |
| Others (each) | ≤ 0.05 % |
| Others (total) | ≤ 0.15 % |
This elemental makeup grants the 3104 alloy several metallurgical advantages:
- High tensile strength: The reinforced structure provides tensile strengths typically around 190-230 MPa.
- Good corrosion resistance: Thanks mainly to manganese content and the aluminum base.
- Superior formability: Especially suitable for cold-working operations by retaining ductility.
Alloy Tempers and Mechanical Properties
3104 aluminum coil is provided in various tempers, mainly for tailored mechanical and surface characteristics required by different industries:
| Temper | Description | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|---|
| O | Annealed (soft) | 110-135 | 45-70 | 25-30 |
| H14 | Strain-hardened, partial hard | 200-230 | 130-160 | 6-10 |
| H24 | Strain-hardened, stabilized | 170-195 | 120-145 | 8-12 |
Each temper balances strength and formability to optimize performance in processes such as stamping, rolling, and bending.
Implementation Standards Ensuring Quality and Reliability
Production and quality assurance for 3104 alloy aluminum coils adhere to stringent implementation standards. Some of the globally recognized standards include:
- ASTM B209 – Specification for Aluminum and Aluminum-Alloy Sheet and Plate
- EN 573 – Aluminum and aluminum alloys — Chemical composition and form of wrought products
- ISO 6361 – Aluminum and aluminum alloys — Rolled or cold-formed flat products — Chemical composition and mechanical properties
These standards dictate not only chemical composition but also dimensional accuracy, flatness, mechanical testing, surface finishing, and packaging requirements. Typical coil thickness ranges between 0.2mm and 3.0mm with widths customizable to industry needs (e.g., 1000-1600 mm).
Industrial Functions and Applications from a Functional Standpoint
Functionality-wise, 3104 aluminum coil takes origin from its metallurgical essence and transforms into a multi-performance component in industrial environments:
1. Packaging Industry — Durable Yet Formable
This alloy strikes the perfect compromise: increasing tensile strength compared to pure aluminum (1100 alloy) without sacrificing elongation critical to shaping beverage cans and food containers. Its moderate corrosion resistance ensures product safety and longer shelving periods for packaged goods.
2. Construction and Roofing — Weather Resistant Layers
3104 coils are extensively used to manufacture roofing sheets and building facades where mechanical resilience is vital, combined with surface anodization or coil coating to resist environmental degradation.
3. Automotive Sector — Lightweight Body Components
The growing push for energy efficiency highlights the importance of lightweight construction. The 3104 coil’s enhanced mechanical profiles make it ideal for outer and inner body panels in economical vehicles, enhancing fuel economy without forfeiting surface finish or crashworthiness.
4. Electrical Components — Reliable Conductivity & Structural Guidance
While not a primary conductor like copper, the 3104 alloy finds usage in housings and heat sinks where a balanced relationship between weight, corrosion resistance, and manufacturability is crucial.
| Parameter | Typical Range/Value |
|---|---|
| Chemical composition | Mg (0.8-1.2%), Mn (1.0-1.5%) |
| Tensile strength (H14 temper) | 200-230 MPa |
| Typical thickness | 0.2 mm to 3.0 mm |
| Electrical conductivity | ~34% IACS |
| Density | ~2.70 g/cm³ |
| Standard coatings | Electronic grade, PVDF, or polyester |
Concluding Remarks
From a technical but distinctly function-conscious viewpoint, 3104 alloy aluminum coil offers a balanced blend of strength, formability, and durability that uniquely positions it as a reliable and efficient raw material across critical industrial sectors. Manufacturers value how it meets and often exceeds strict implementation standards, helping to unlock its functional potential in products ranging from consumer packaging to automotive and architectural components.
these characteristics not only aides quality control engineers but also product designers and procurement specialists in selecting the best fit material for efficient manufacturing and long-term operational performance.
For OEMs or suppliers looking to integrate 3104 alloy aluminum coil into their production lines, rigorous adherence to listed technical standards paired with appropriate tempering and finishing will guarantee optimal utilization.
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