3105 Aluminum Strip is a non-heat-treatable Al-Mn series alloy with excellent corrosion resistance, good formability, stable mechanical performance, and superior surface finishing capability. Compared with 3003 aluminum, 3105 aluminum generally offers improved strength while maintaining good ductility and processing performance.
At HAOMEI Aluminum CO., LTD., we supply high-quality 3105 aluminum strip in various tempers, thicknesses, widths, and surface conditions for industrial manufacturing, construction, packaging, and decorative applications.
Features of 3105 Aluminum Strip
Good corrosion resistance in atmospheric and humid environments
Excellent formability for bending, stamping, roll forming, and deep drawing
Medium strength with stable mechanical properties
Good weldability and easy processing performance
Excellent paintability and coating adhesion
Smooth surface quality, suitable for color coating, printing, and lacquering
Non-heat-treatable alloy, strengthened mainly by cold working
Specifications
| Item | Specification |
|---|---|
| Product Name | 3105 Aluminum Strip |
| Alloy | 3105 |
| Temper | O, H12, H14, H16, H18, H22, H24, H26 |
| Thickness | 0.20 mm – 4.00 mm, customizable |
| Width | 10 mm – 1600 mm, customizable |
| Coil ID | 305 mm, 405 mm, 505 mm, or as required |
| Coil Weight | 0.5 – 5 tons per coil, or customized |
| Surface | Mill finish, coated, color coated, lacquered, brushed |
| Edge | Slit edge, deburred edge available |
| Standard | ASTM B209, EN 485, GB/T 3880, or customer standard |
| Packing | Export wooden pallet/case, moisture-proof packaging |
Chemical Composition of 3105 Aluminum Strip
| Element | Content % |
|---|---|
| Si | ≤ 0.60 |
| Fe | ≤ 0.70 |
| Cu | ≤ 0.30 |
| Mn | 0.30 – 0.80 |
| Mg | 0.20 – 0.80 |
| Cr | ≤ 0.20 |
| Zn | ≤ 0.40 |
| Ti | ≤ 0.10 |
| Others, each | ≤ 0.05 |
| Others, total | ≤ 0.15 |
| Al | Balance |
Typical Mechanical Properties
The following values are for reference only. Final properties depend on thickness, temper, and applicable standard.
| Temper | Tensile Strength Rm MPa | Yield Strength Rp0.2 MPa | Elongation % |
|---|---|---|---|
| O | 75 – 125 | ≥ 35 | ≥ 20 |
| H12 | 110 – 160 | ≥ 85 | ≥ 8 |
| H14 | 130 – 180 | ≥ 110 | ≥ 5 |
| H16 | 150 – 200 | ≥ 130 | ≥ 3 |
| H18 | 170 – 220 | ≥ 150 | ≥ 1 |
| H24 | 130 – 180 | ≥ 110 | ≥ 6 |
Physical Properties
| Property | Typical Value |
|---|---|
| Density | Approx. 2.73 g/cm³ |
| Melting Range | Approx. 640 – 655°C |
| Thermal Conductivity | Approx. 160 – 175 W/m·K |
| Electrical Conductivity | Approx. 40 – 42% IACS |
| Alloy Type | Al-Mn-Mg alloy |
| Heat Treatment | Non-heat-treatable |
Applications of 3105 Aluminum Strip
3105 aluminum strip is widely used where corrosion resistance, formability, and surface quality are important.
| Application | Recommended Temper | Typical Thickness | Advantages |
|---|---|---|---|
| Aluminum closure caps | H14, H16, H18 | 0.20 – 0.35 mm | Good stamping performance and surface finish |
| Color coated aluminum strip | H24, H26 | 0.30 – 1.20 mm | Excellent coating adhesion and weather resistance |
| Roofing and gutter systems | H24, H26 | 0.40 – 1.50 mm | Corrosion resistance and long service life |
| Decorative panels and trims | H14, H24 | 0.30 – 2.00 mm | Smooth surface and easy forming |
| Signage and nameplates | H14, H18 | 0.30 – 1.50 mm | Good flatness and printability |
| Lamp components | O, H14, H24 | 0.30 – 2.00 mm | Easy forming and good surface appearance |
| Rolling shutters and blinds | H18, H24 | 0.40 – 1.20 mm | Strength, flatness, and coating performance |
Surface Quality
HAOMEI 3105 aluminum strip can be supplied with excellent surface quality according to customer requirements.
| Surface Requirement | Description |
|---|---|
| Flatness | Good coil flatness for continuous processing |
| Cleanliness | Free from oil stains, black spots, and heavy oxidation |
| Surface Defects | No serious scratches, cracks, peeling, or dents |
| Coating Performance | Suitable for painting, printing, and lacquering |
| Slitting Quality | Accurate width tolerance and smooth edges |
Why Choose HAOMEI 3105 Aluminum Strip?
HAOMEI Aluminum CO., LTD. provides stable-quality 3105 aluminum strip for global B2B customers. We support customized thickness, width, temper, surface treatment, and packaging solutions.
Our advantages include:
Stable alloy composition and mechanical performance
Advanced rolling, annealing, and slitting process
Strict surface and dimensional inspection
Custom coil size and export packaging
Suitable for mass production and industrial processing
For reliable 3105 aluminum strip supply, HAOMEI can provide tailored solutions according to your product application and technical requirements.
