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Data Sheets

Aluminium Alloy

Commercial Alloy

2011 T6 Extruded Rod and Bar

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 are easily removed. The excellent machining characteristics allow the production of complex and detailed parts. In some circumstances 2011 can replace free machining brass without the need for alterations to tooling.
It has poor corrosion resistance, which means parts made from 2011 tend to be anodised to provide additional surface protection.
When higher levels of corrosion resistance are required, 6262 T9 may be a suitable replacement.

Applications - 2011 is typically used in applications that require parts manufactured by repetition machining. These applications may include:
Appliance parts & trim
Automotive trim
Fasteners and fittings

Chemical Composition

BS EN 573-3:2009
Alloy 2011
Chemical Element % Present
Iron (Fe) 0.0 - 0.70
Copper (Cu) 5.00 - 6.00
Lead (Pb) 0.20 - 0.40
Bismuth (Bi) 0.20 - 0.60
Other (Each) 0.0 - 0.05
Others (Total) 0.0 - 0.15
Silicon (Si) 0.0 - 0.40
Zinc (Zn) 0.0 - 0.30
Aluminium (Al) Balance

Alloy Designations

Aluminium alloy 2011 also corresponds to the following standard designations and specifications but may not be a direct equivalent:







Generic Physical Properties

Physical Property Value
Density 2.83 g/cm³
Modulus of Elasticity 70 GPa
Thermal Expansion 22.9 x10^-6 /K
Melting Point 535 °C

Mechanical Properties

BS EN 755-2:2008
Extruded Rod and Bar - Up to 75mm Dia.
Mechanical Property Value
Tensile Strength 310 Min MPa
Proof Stress 230 Min MPa
Hardness Brinell 110 HB
Elongation A 8 Min %


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.


Process                          Rating

Workability - Cold             Fair

Machinability                    Excellent

Weldability – Gas              Poor

Weldability – Arc               Poor

Weldability – Resistance    Poor

Brazability                        Poor

Solderability                      Fair


This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.