Aluminium alloy 6061 is a medium to high strength heat-treatable alloy with a strength higher than 6005A. It has very good corrosion resistance and very good weldability although reduced strength in the weld zone. It has medium fatigue strength. It has good cold formability in the temper T4, but limited formability in T6 temper. Not suitable for very complex cross sections.
See where BS EN 573-3 Grade 6061 T6 falls on the material property chart for Density against Elastic modulus in your materials selection and design process. Our Ashby charts are interactive with more technical data upon clicking. Sign up to get access to this premium feature for free.
2.7 g/cm³ at 20 °C
Elongation in 50 mm
Coefficient of thermal expansionα
2.36E-5 - 2.4E-5 1/K at 20 °C
derived value between 20°C and the mentioned temperature
580 - 650 °C
Specific heat capacitycp
900 J/(kg·K) at 20 °C
derived value for 23-100°C
155 - 180 W/(m·K) at 20 °C
2.30E+7 - 2.49E+8 S/m at 20 °C
3.7E-8 - 4.35E-8 Ω·m at 20 °C
Specific Electrical conductivity
43 % IACS
95.9 - 98.6 %
0.8 - 1.2 %
0.4 - 0.8 %
0.15 - 0.4 %
0.04 - 0.35 %
Heavy duty structures (Rail coaches, Truck frames, Ship building, Bridges and Military bridges, Aerospace applications including helicopter rotor), Skins (Tube, Pylons and Towers, Transport, Boilermaking, Motorboats, Rivets).
Stress corrosion cracking: no damage during operation and laboratory tests (O, T6, T651, T652, T6510, T6511), no damage during operation, limited damage during laboratory tests (T4, T451, T4510, T4511), general: good, without protection in industrial or seawater atmosphere
Gas: Good; Arc: Very Good; Resistance: Good
This material data has been provided by Righton Blackburns,MakeItFrom.com,ASM Handbook Volume 2 Properties and Selection: Nonferrous Alloys and Special-Purpose Materials,WroughtAl_ElectricalResistivity,WroughtAl_Thermal,AluKey.