Core Properties and Industry Positioning of 3105 Aluminum Sheet

3105 aluminum alloy belongs to the Al-Mn series (3000 series). By adding manganese (Mn) (approximately 0.5%) to pure aluminum, it significantly enhances strength and corrosion resistance while retaining excellent workability. Its key characteristics include:

✅ Superior Weather Resistance: Far exceeds the atmospheric corrosion resistance of pure aluminum (e.g., 1100), making it especially suitable for long-term outdoor exposure.

✅ Moderate Strength: Strength lies between pure aluminum and high-strength alloys (e.g., 5052), meeting lightweight structural demands.

✅ High Formability: Easily stamped, bent, and roll-formed, adapting to complex shape processing.

✅ Surface Treatment Compatibility: Strong bonding with coatings (color-coated PVDF/PE) and anodizing, offering good color stability.

Typical Application Scenarios for 3105 Aluminum Sheet

• 1.Building & Curtain Wall Sector (Core Market)

Exterior Cladding/Curtain Wall Panels: Leveraging its weather resistance and decorative surface, 3105-H14/H24 aluminum sheet, after Fluorocarbon Coating (PVDF), becomes the preferred material for high-end building facades, resisting UV rays and acid rain with minimal color change for 20 years.

Roofing/Canopy Systems: Its lightweight nature (reducing structural load) combined with corrosion resistance makes it widely used for curved roofs in large facilities like airports and stadiums.

Ceilings/Interior Wall Decoration: Creates highly modern interior spaces (e.g., subway stations, commercial complexes) through anodizing or laminated film finishes.

• 2. Home Appliance & Consumer Electronics Housings

Air Conditioner Outdoor Unit Casings: The salt spray corrosion resistance of 3105 aluminum sheet effectively handles humid, coastal environments, extending equipment lifespan.

Refrigerator/Washing Machine Side Panels: High formability supports complex curved stamping; surfaces can be brushed, sandblasted, etc., for enhanced texture.

Electronic Device Housings (e.g., Outdoor Display Bezels): Balances structural strength with electromagnetic shielding requirements.

• 3. Transportation Components

Truck/Refrigerated Van Body Panels: Lightweighting reduces fuel consumption; manganese enhances welding stability, adapting to long-haul vibration environments.

Ship Interior Panels: Resists marine climate corrosion, replacing traditional steel to reduce hull weight.

• 4. Industrial Containers & Packaging

Chemical Tank Liners: Offers good corrosion resistance against non-strong acid/alkali media for storage tank protection layers.

Food Packaging Substrate: 3105 H18 temper thin sheets (0.2~0.3mm), coated for can ends and food containers, comply with food safety standards.

• 5. Emerging Energy Applications

PV Mounting Components: Weather resistance supports 25+ years of outdoor service life, offering superior corrosion resistance and being maintenance-free compared to steel.

Solar Water Heater Absorber Plate Substrate: High thermal conductivity + selective absorption surface coating enhances photo-thermal conversion efficiency.

Why Choose Flait Aluminum’s 3105 Sheet?

✅ Precise Performance Control

Strict regulation of manganese content (0.3~0.8%) and trace elements ensures batch consistency.

Available in multiple tempers (H14/H24/H18) to match different strength and formability needs.

✅ Comprehensive Surface Solutions

✅ Customized Supply Capabilities

Thickness range: 0.2mm – 6.0mm, Width up to 2500mm; supports slitting, shearing, laser cutting.

Rapid response to custom color coating (Pantone color matching), shortening lead times.

If your project requires a high-performance aluminum sheet solution that balances corrosion resistance, strength, and cost-effectiveness, Flait Aluminum’s 3105 series is the ideal choice!