3105 Aluminium Plate

3105 aluminium is a non-heat-treatable alloy in the 3000 series (Al-Mn-Mg), primarily composed of aluminium (≥97.3%) with minor additions of manganese (0.3–0.8%), magnesium (0.2–0.8%), and trace elements like silicon (<0.6%), copper (<0.3%), and titanium (<0.1%) . This composition enhances its strength, corrosion resistance, and formability compared to pure aluminium (1100) or the widely used 3003 alloy.

Mechanical Properties:

Strength: Tensile strength ranges from 125–175 MPain annealed (O) temper, increasing to 180–200 MPain cold-worked tempers like H14 or H24. Yield strength for the H14 temper is approximately 145–150 MPa, with elongation values of 1–12%depending on the temper.

Formability: Excellent in annealed (O) and semi-hard (H12/H14) states, allowing deep drawing and bending with radii of 1–2× thickness. Harder tempers (e.g., H18) require larger radii (2–7× thickness).

Hardness: Brinell hardness (HBW) for H14 temper is around 35–45, balancing workability and durability.

Density: 2.71 g/cm³, typical of aluminium alloys.

Application:

• 3105 aluminium plate is versatile across industries:
• Construction: Roofing, gutters, downspouts, siding, and architectural panels due to its corrosion resistance and aesthetic appeal.
• Packaging: Beverage bottle caps, aerosol containers, and food packaging, leveraging its formability and food-safe compliance (in specific tempers).
• Transportation: Truck floors, bus interiors, and refrigerated containers for lightweight durability.
• Industrial Equipment: Anti-skid platforms, stair treads, and structural components requiring moderate strength and corrosion resistance .
• Electrical Components: Busbars, heat sinks, and wiring harnesses capitalising on their conductivity.