Aluminium, Commercial Alloy
2011 T3 Bar
Extruded and drawn machining bar with high mechanical strength that machines exceptionally well.
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.
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Range
| Product Form | Imperial Sizes | Metric Sizes |
| Round Bar | 3⁄16"- 16" | 6mm - 50mm |
PLEASE NOTE
If you do not see what you are looking for, please contact your local service centre with your specific requirements.
2011 T3 Aluminium Related Specifications
| System / Standard | Country / Region | Grade / Designation |
| AA | USA | 2011-T3 |
| UNS | International | A92011 (2011-T3) |
| EN / DIN | Europe | EN AW-2011 / 3.1655 (T3) |
| EN Name | Europe | AlCu6BiPb – T3 |
| ASTM B211 | USA | 2011-T3 bar, rod, wire |
| AMS | USA / Aerospace | AMS 4110 (2011-T3 bar/rod) |
| GB | China | 2011-T3 |
| JIS | Japan | A2011-T3 |
| BS | UK | FC1 (2011-T3 bar) |
| AFNOR | France | A-U5PbBi (2011-T3) |
Properties
Chemical Composition
Alloy 2011
| Chemical Element | % Present |
| Silicon (Si) | 0.00 - 0.40 |
| Iron (Fe) | 0.00 - 0.70 |
| Copper (Cu) | 5.00 - 6.00 |
| Lead (Pb) | 0.20 - 0.40 |
| Bismuth (Bi) | 0.20 - 0.60 |
| Zinc (Zn) | 0.00 - 0.30 |
| Others (Total) | 0.00 - 0.15 |
| Other (Each) | 0.00 - 0.05 |
| Aluminium (Al) | Balance |
Mechanical Properties
Rod and Bar Up to 200mm Dia. or 60mm A/F
| Mechanical Property | Value |
| Elongation A50 mm | 12 Min % |
| Proof Stress | 125 Min MPa |
| Tensile Strength | 275 Min MPa |
| Hardness Brinell | 95 HB |
| Elongation A | 14 Min % |
Extruded and Drawn Bar Up to 200mm Dia. or 60mm A/F
| Mechanical Property | Value |
| Proof Stress | 270 Min MPa |
| Tensile Strength | 320 Min MPa |
| Hardness Brinell | 90 Min HB |
| Elongation A | 10 Min % |
General Physical Properties
| Physical Property | Value |
| Density | 2.83 g/cm³ |
| Modulus of Elasticity | 70 GPa |
| Electrical Resistivity | 0.038 x 10-6 Ω .m |
| Thermal Conductivity | 151 W/m.K |
| Thermal Expansion | 22.9 x 10-6/K |
| Melting Point | 535 °C |
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
- Ordnance
Characteristics
- 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.
- 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.
Additional Information
Fabrication
| Process | Rating |
| Workability - Cold | Fair |
| Machinability | Excellent |
| Weldability - Gas | Poor |
| Weldability - Arc | Poor |
| Weldability - Resistance | Poor |
| Brazability | Poor |
| Solderability | Fair |
Weldability
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.
