Aluminium alloy 2011 is a high mechanical strength alloy that machines exceptionally well. Often called a Free Machining Alloy or ‘FMA’ it is well suited to use in automatic lathes. Machining at high speeds produces fine chips that areeasily removed. The excellent machining characteristics allow the production of complex and detailed parts. In some circumstances 2011 canreplace free machining brass without the need foralterations to tooling.It has poor corrosion resistance, which means partsmade from 2011 tend to be anodised to provideadditional surface protection.When higher levels of corrosion resistance arerequired, 6262 T9 may be a suitable replacement.
See where BS EN 573-3 Grade 2011 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.
2.83 - 3.1 g/cm³ at 23 °C
Coefficient of thermal expansionα
2.29E-5 1/K at 20 °C
535 - 645 °C
Specific heat capacitycp
860 J/(kg·K) at 23 °C
151 - 172 W/(m·K) at 23 °C
2.30E+7 - 2.60E+7 S/m at 23 °C
3.85E-8 - 4.35E-8 Ω·m at 23 °C
91.3 - 94.6 %
5 - 6 %
0.2 - 0.6 %
0.2 - 0.6 %
0 - 0.7 %
Appliance parts & trim, Automotive trim, Fasteners and fittings, Ordnance
Stress corrosion cracking: Limited operational damage(T3, T4, T451), no damage during operation, limited damage during laboratory tests (T8), general: sufficient, in principle it should be protected
Alloy 2011 has extremely poor weldability and thus welding is not recommended. However, as it is used for machined parts there is rarely a need to weld this alloy. Gas: Poor; Arc: Poor; Resistance: Poor
This material data has been provided by MakeItFrom.com,Righton Blackburns,AluKey.