Aluminum alloy 3105 is essentially a 98% aluminum alloy with minor additions to increase strength over that of alloy 1100 and 3003. It is not hardenable by heat treatment and it has good corrosion resistance, formability and weldability. Typical applications include general sheet metal work requiring greater strength than is provided by 1000 series aluminum alloys, residential siding, mobile homes and sign making.

Aluminum Alloy 6061 coils and sheets are the most versatile of the heat treatable aluminum alloys. Though less strong than most of the 2000 and 7000 alloys, 6061 aluminum provides an extensive range of mechanical properties and corrosion resistance and can be fabricated by many of the commonly used practices. In the “”O”” temper or annealed condition, alloy 6061 has good formability. In the T4 condition, fairly severe forming can be done; whereas, in the T6 condition, properties may be obtained by artificial aging.

Aluminum 3105 alloy can be forged at the temperatures ranging from 372 to 510°C (700 to 950°F). Aluminum 3105 alloy can be hot worked at 205 to 372°C (400 to 700°F) Aluminum 3105 alloy has good cold working characteristics in the harder cold worked tempers. Aluminum 3105 alloy is annealed at 344°C (650°F) followed by cooling in air. Aluminum 3105 alloy can be hardened only by cold working in H12, 14, 16, 18 or 25 tempers.