Aluminum 2011 Machined Parts

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Aluminum 2011 Machined Parts


Aluminum 2011 Machined Parts

3Q MACHINING has rich experience for machining aluminum alloy 2011 parts with high precision, we can machine intricate parts on our CNC Lathe machines and CNC turning centers. Aluminum alloy 2011 has the highest machinability of all aluminum alloys, suitable for complex and detailed parts. Considered a free-machining alloy (FMA), it can be quickly machined to very close tolerances and produces an excellent surface finish. Aluminum 2011 is a great economical choice due to its machinability and production of fine, easily removable chips. Aluminum 2011 is the standard for relative machinability compared to all other aluminum alloys. It can be forged or hot worked but is not ideal for welding or soldering. 2011 can be heat treated, annealed, aged, and tempered. It can be anodized but results in a darker and less corrosion resistant finish than Aluminum 6061.

Aluminum 2011 Machining Capability


Aluminum 2011 Applications

Aluminium alloy 2011 is used in applications that require parts manufactured by repetition machining. These applications may include:

  1. Appliance parts & trim
  2. Automotive trim
  3. Fasteners and fittings
  4. Ordnance


Welding: Aluminium 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.

View more products on our machined parts photo gallery.

Common Material Comparison

TypeGeneral CharacteristicsAlloyCommon ApplicationsTolerances for 1/2″ Dia.
SteelDesigned for excellent machinability. Case hard only12L14Endless commercial products; probably more pounds used in turned products than any other materialCold drawn
Stainless SteelDesigned for machining, non-magnetic303Electronic hardware, automotive, aerospace, medical instruments, and many applications requiring corrosion resistanceCold finished
+/- .002
BrassStrength, corrosion and wear resistance, and excellent machinabilityC35300Well suited for parts with knurling or threading+/-.0015
AluminumDesigned for machining2011Electronic hardware, endless commercial productsCold finish
TitaniumHigh strength, light weight, good bio-compatibilityTi-6Al-4VEliMedical implantsGround & polished

Table 1. Chemical composition for aluminium alloy 2011

Element% Present

Table 2 (a). Mechanical properties for aluminium alloy 2011 T4

Proof Stress125 Min MPa
Tensile Strength275 Min MPa
Elongation A50 mm12 min %
Hardness Brinell95 HB
Elongation A14 min %
*Properties above are for material in the T4 condition

Table 3. Fabrication response for aluminium alloy 2011

Workability – ColdFair
Weldability – GasPoor
Weldability – ArcPoor
Weldability – ResistancePoor

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Author: Mose Li

Author: Mose Li

Director of Project Engineering at 3Q Machining


The guideline for raw materials, understand more to choose best material for your custom part projects.

Machining Techniques

The guideline for different machining technique, understand more to choose best technique for your custom part projects.


The guideline for different machining equipments, understand more to choose best equipments for your custom part projects.

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