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2011

AMS QQ-A-225/3 / AlCu6BiPb / 2011 / T4

Chemical Properties % Value
Silicon (Si)0,40 Max
Copper (Cu)5,00 - 6,00
Lead (Pb)0,20 - 0,60
Iron (Fe)0,70 Max
Zinc (Zn)0,00 - 0,30
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
Mechanical Properties Value
Proof Strength140 MPa
Yield Strength310 MPa
Elongation A50 mm%18
Modulus of Elasticity70 GPa

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.

 

ALLOY DESIGNATIONS

Aluminium alloy 2011, AMS QQ-A-225/3 is covered by Standard BS EN 2100 and has similarities to the following standard designations and specifications:

2011, ISO AlCu6BiPb, 3.1655

UNS A92011,  BS FC1

 

TEMPER TYPES

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.

 

SUPPLIED FORMS

2011 aluminium is supplied in round bar.

  • Round Bar
DELIVERY:
Mechanical Properties
Thickness (mm) Proof Strength (Min.) Yield Strength (Min.) Elongation A50 mm %
Up to & incl. 60 125 275 %14