EN AW / AlCu6BiPb / 2011 / T3

Chemical Properties % Value
Silicon (Si)0,40 Max
Copper (Cu)3,90 - 5,00
Lead (Pb)0,20 - 0,60
Iron (Fe)0,70 Max
Zinc (Zn)0,00 - 0,20
Nickel (Ni)0,00 - 0,20
Aluminium (Al)Balance
Physical Properties Value
Density2.82 g/cm³
Melting Point540 °C
Thermal Expansion22.9 x 10^-6 /K
Modulus of Elasticity70 GPa
Thermal Conductivity150 W/m.K
Electrical Resistivity%39 IACS
Mechanical Properties Value
Proof Strength290 MPa
Yield Strength340 MPa
Shear Strength220 MPa

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.



Aluminium alloy EN AW 2011 is covered by Standard BS EN 2100 and has similarities to the following standard designations and specifications:

Alloy 2011 UNS A92011, ASTM B209

DIN AlCu6BiPb, 3.1655



The most common tempers for 2011 aluminium are:

  • O   - Soft
  • T3 - Solution heat treated, cold worked and naturally aged
  • T4 - Solution heat treated and naturaly aged to a substantially stable condition. 
  • T8 - Solution heat-treated, cold worked and then artificially aged.
  • T451 - Solution heat-treated, stress-relieved by controlled stretching and then artificially overaged (between T73 and T76). The products receive no further straightening after stretching.



2011 aluminium is supplied in round bar.

  • Round Bar
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
Over 3,17 up to & incl. 38,1 260 MPa 310 MPa %10
Over 38,13 up to & incl. 50,8 235 MPa 295 MPa %10
Over 50,83 up to & incl. 82,5 205 MPa 290 MPa %14