Aluminum Alloy 6061 – Composition, Properties, Temper and Applications of 6061 Aluminum

Aluminium Alloy 6061 - Composition, Properties, Temper and Applications of 6061 Aluminium Topics Covered Background Composition Key Properties Physical Properties Mechanical Properties Thermal Properties Electrical Properties Typical Heat Treatment/Temper States Typically Available Forms Applications P /5

Aluminium Alloy 6061 - Composition, Properties, Temper and Applications of 6061 Aluminium Background Aluminium alloy 6061 is one of the most extensively used of the 6000 series aluminium alloys. It is a versatile heat treatable extruded alloy with medium to high strength capabilities. P /5

Country Standard Aluminum alloy 6061 is one of the most extensively used of the 6000 series aluminum alloys. It is a versatile heat treatable extruded alloy with medium to high strength capabilities

Aluminium Alloy 6061 - Composition, Properties, Temper and Applications of 6061 Aluminium Table 1. Typical composition of aluminium alloy 6061 Component Amount (wt.%) Aluminium Balance Magnesium 0.8-1.2 Silicon 0.4 – 0.8 Iron Max. 0.7 Copper 0.15-0.40 Zinc Max. 0.25 Titanium Max. 0.15 Manganese Chromium 0.04-0.35 Others 0.05

P Key Properties Typical properties of aluminium alloy 6061 include: Medium to high strength Good toughness Good surface finish Excellent corrosion resistance to atmospheric conditions Good corrosion resistance to sea water Can be anodized Good weldability and brazability Good workability Widely available Poissons Ratio: 0.33 P /5

P Key Properties Typical properties of aluminium alloy 6061 include: Aluminium Alloy 6061 - Composition, Properties, Temper and Applications of 6061 Aluminium Key Properties Typical properties of aluminium alloy 6061 include: Note: Property data is provided below, but should be used a guide only. As data may vary between manufacturers, you should consult your supplier for more exact figures. Physical Properties Density: 2.7 g/cm3 Melting Point: Approx 580°C Modulus of Elasticity: 70-80 GPa Poissons Ratio: 0.33 P /5

Mechanical Properties Temper Ultimate Tensile Strength (MPa) 0.2% Proof Stress (MPa) Brinell Hardness (500kg load, 10mm ball) Elongation 50mm dia (%) 110-152 65-110 30-33 14-16 T1 180 95-96 16 T4 179 min 110 min T6 260-310 240-276 95-97 9-13 Thermal Properties Co-Efficient of Thermal Expansion (20-100°C): 23.5x10-6 m/m.°C Thermal Conductivity: 173 W/m.K Electrical Properties Electrical Resistivity: 3.7 – 4.0 x10-6 Ω.cm

Typical Heat Treatment/Temper States F As fabricated Annealed to obtain lower strength temper T1 Cooled from an elevated shaping process and naturally aged1 T4, T4511 Solution heat treated and naturally aged2,3 T51 Cooled from an elevated shaping process and artificially aged T6, T6511 Solution heat treated and artificially aged2,3 Note: This designation applies to products which are not cold worked after cooling from an elevated temperature shaping process, or in which the effect of cold work in flattening or straightening has no effect on mechanical properties This designation applies to products which are not cold worked after solution heat-treated, or in which the effect of cold work in flattening or straightening has no effect on mechanical properties This designation applies to products which are not cold worked after solution heat-treatment, or in which the effect of cold work in flattening or straightening does not effect mechanical properties.

Typically Available Forms Being and extruded grade of aluminum, alloy 6061 is typically available as: Tube Bar Pipe Rod Although many manufacturers offer a range of other standard extruded profiles.

Applications Typical applications for aluminium alloy 6061 include: Aircraft and aerospace components Marine fittings Transport Bicycle frames Camera lenses Driveshafts Electrical fittings and connectors Brake components