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Description: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 Max. 0.15 Chromium 0.04-0.35 Others 0.05 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 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 Modulus of Elasticity: 70-80 GPa Poissons Ratio: 0.33 Mechanical Properties Temper Ultimate Tensile Strength (MPa) 0.2% Proof Stress (MPa) Brinell Hardness (500kg load, 10mm ball) Elongation 50mm dia (%) 0 110-152 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 Thermal Conductivity: 173 W/m.K Electrical Properties Electrical Resistivity: 3.7-4.0 x10-6 Omega.cm Typical Heat Treatment/Temper States Treatment Definition F As fabricated 0 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: 1. 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 2. 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 3. This designation applies to products which are not cold worked after solution heattreatment, or in which the effect of cold work in flattening or straightening does not effect mechanical properties.