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Aluminum 6061 is one of the most commonly used aluminum alloys due to its excellent combination of strength, corrosion resistance, weldability, and ease of processing. It belongs to the 6000 series of aluminum alloys, which are primarily composed of aluminum, magnesium, and silicon. Due to its versatile properties, 6061 is widely used in industries such as aerospace, construction, automotive, marine, and electronics.

Aluminum 6061 is a heat-treatable alloy, and its chemical composition is primarily based on aluminum, with significant amounts of magnesium and silicon. The typical composition of 6061 aluminum alloy is as follows:

• Aluminum (Al): Balance
• Silicon (Si): 0.4-0.8%
• Iron (Fe): 0.7% max
• Copper (Cu): 0.15-0.4%
• Manganese (Mn): 0.15% max
• Magnesium (Mg): 1.0-1.5%
• Chromium (Cr): 0.04-0.35%
• Zinc (Zn): 0.25% max
• Titanium (Ti): 0.15% max

Aluminum 6061 offers a range of favorable physical properties, including low density, high thermal conductivity, and good electrical conductivity. Key physical properties of 6061 aluminum include:

• Density: 2.70 g/cm³ (2700 kg/m³)
• Melting Point: 582-652°C (1080-1205°F)
• Thermal Conductivity: 151 W/m*K
• Electrical Conductivity: 40-42% IACS (International Annealed Copper Standard)
• Specific Heat: 0.897 J/g*°C
• Modulus of Elasticity: 68.9 GPa (10.0 × 10³ ksi)