2011 Aluminum Bar is well-known for its machinable elements, like lead and bismuth. This aluminum bar offers excellent mechanical properties, good strength, moderate formability, and about 38% of the conductivity of copper.
It allows fast machining with small, easily broken chips, extending tool life. Plus, it achieves tight tolerances and delivers a smooth, bright surface.
2011 aluminum bar specifications
- ASTM B211
- QQ-A-225/3
- EN 755-2
- EN 573-3
- AMS 4115
- AMS 4116
- RoHS 2
Popular stock sizes of 2011 aluminum bar
Mastar's 2011 aluminum bars meet aerospace standards of QQ-A and AMS grades and are available in both imperial and metric diameters.
We can cut 2011 aluminum bars to your exact specifications and provide precise tolerances.Quick Quote
Popular stock sizes of 2011 aluminum round bar
2011 Aluminum Round Bar- Processing Method: Cold Finished
- Temper: T3
- Imperial Diameter: 1/8" - 4 1/2"
- Metric Diameter: 1/8" - 4 1/2"
- Length: 1 - 6 meters
| Description | Diameter in | Diameter mm | Length |
| 1/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1/8" | 3.175 mm | 1-6m |
| 5/32" (A) 2011-T3 Cold Finished Aluminum Round Bar | 5/32" | 3.969 mm | 1-6m |
| 3/16" (A) 2011-T3 Cold Finished Aluminum Round Bar | 3/16" | 4.762 mm | 1-6m |
| 7/32" (A) 2011-T3 Cold Finished Aluminum Round Bar | 7/32" | 5.556 mm | 1-6m |
| 1/4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1/4" | 6.35 mm | 1-6m |
| 9/32" (A) 2011-T3 Cold Finished Aluminum Round Bar | 9/32" | 7.144 mm | 1-6m |
| 7/32" (A) 2011-T3 Cold Finished Aluminum Round Bar | 7/32" | 5.556 mm | 1-6m |
| 11/32" (A) 2011-T3 Cold Finished Aluminum Round Bar | 11/32" | 8.731 mm | 1-6m |
| 3/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 3/8" | 9.525 mm | 1-6m |
| 7/16" (A) 2011-T3 Cold Finished Aluminum Round Bar | 7/16" | 11.112 mm | 1-6m |
| 1/2" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1/2" | 12.7 mm | 1-6m |
| 9/16" (A) 2011-T3 Cold Finished Aluminum Round Bar | 9/16" | 14.287 mm | 1-6m |
| 5/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 5/8" | 15.875 mm | 1-6m |
| 11/16" (A) 2011-T3 Cold Finished Aluminum Round Bar | 11/16" | 17.4625 mm | 1-6m |
| 3/4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 3/4" | 19.05 mm | 1-6m |
| 7/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 7/8" | 22.225 mm | 1-6m |
| 1" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1" | 25.4 mm | 1-6m |
| 1 1/8"" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1 1/8" | 28.575 mm | 1-6m |
| 1 1/4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1 1/4" | 31.75 mm | 1-6m |
| 1 3/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1 3/8" | 34.925 mm | 1-6m |
| 1 1/2" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1 1/2" | 38.1 mm | 1-6m |
| 1 3/4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 1 3/4" | 44.45 mm | 1-6m |
| 2" (A) 2011-T3 Cold Finished Aluminum Round Bar | 2" | 50.8 mm | 1-6m |
| 2 1/4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 2 1/4" | 57.15 mm | 1-6m |
| 2 1/2" (A) 2011-T3 Cold Finished Aluminum Round Bar | 2 1/2" | 63.5 mm | 1-6m |
| 2 5/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 2 5/8" | 66.675 mm | 1-6m |
| 2 7/8" (A) 2011-T3 Cold Finished Aluminum Round Bar | 2 7/8" | 73.025 mm | 1-6m |
| 3" (A) 2011-T3 Cold Finished Aluminum Round Bar | 3" | 76.2 mm | 1-6m |
| 3 1/4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 3 1/4" | 82.55 mm | 1-6m |
| 3 1/2" (A) 2011-T3 Cold Finished Aluminum Round Bar | 3 1/2" | 88.9 mm | 1-6m |
| 4" (A) 2011-T3 Cold Finished Aluminum Round Bar | 4" | 101.6 mm | 1-6m |
| 4 1/2" (A) 2011-T3 Cold Finished Aluminum Round Bar | 4 1/2" | 114.3 mm | 1-6m |
Click to see all 
Click to collapsePopular stock sizes of 2011 aluminum hex bar
2011 Aluminum Hex Bar- Processing Method: Cold Finished
- Temper:T3, T351
- Imperial Diameter: 1/8" - 3 1/2"
- Metric Diameter: 3 mm - 90 mm
- Length: 1 - 6 meters
| Description | Diameter in | Diameter mm | Length |
| 1/8" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 1/8" | 3.175 mm | 1-6m |
| 1/4" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 1/4" | 6.35 mm | 1-6m |
| 1/2" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 1/2" | 12.7 mm | 1-6m |
| 3/4" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 3/4" | 19.05 mm | 1-6m |
| 1" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 1 | 25.4 mm | 1-6m |
| 1 1/4" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 1 1/4" | 31.75 mm | 1-6m |
| 2" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 2 | 50.8 mm | 1-6m |
| 3" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 3 | 76.2 mm | 1-6m |
| 3 1/2" (A) 2011-T351 Cold Finished Aluminum Hexagonal Bar | 3 1/2" | 88.9 mm | 1-6m |
| 1/4" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 1/4" | 6.35 mm | 1-6m |
| 5/16" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 5/16" | 7.938 mm | 1-6m |
| 3/8" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 3/8" | 9.525 mm | 1-6m |
| 7/16" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 7/16" | 11.112 mm | 1-6m |
| 1/2" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 1/2" | 12.7 mm | 1-6m |
| 9/16" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 9/16" | 14.287 mm | 1-6m |
| 5/8" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 5/8" | 15.875 mm | 1-6m |
| 3/4" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 3/4" | 19.05 mm | 1-6m |
| 7/8" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 7/8" | 22.225 mm | 1-6m |
| 15/16" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 15/16" | 23.812 mm | 1-6m |
| 1" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 1" | 25.4 mm | 1-6m |
| 1 1/4" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 1 1/4" | 31.75 mm | 1-6m |
| 1 1/2" (A) 2011-T3 Cold Finished Aluminum Hexagonal Bar | 1 1/2" | 38.1 mm | 1-6m |
Our extensive inventory, combined with state-of-the-art manufacturing facilities, ensures fast delivery of custom-cut aluminum bars that meet your requirements.
In addition to 2011 aluminum bars, Mastar also supplies a wide range of aluminum bar alloys in various shapes such as round bars, square bars, flat bars, and hex bars. If you are looking for alternatives with similar machinability or mechanical strength, feel free to explore our whole aluminum bar product pages or contact us for assistance.Quick Quote
Chemical elements of 2011 aluminum bar (BS EN 573-3)
The 2011 aluminum bar is renowned for its machinable elements, such as lead and bismuth. It offers exceptional machinability, making it suitable for applications that require fast cutting and complex machining.
| Chemical Element | % Present |
| Silicon (Si) | 0.0 - 0.40 |
| Iron (Fe) | 0.0 - 0.70 |
| Copper (Cu) | 5.00 - 6.00 |
| Lead (Pb) | 0.20 - 0.40 |
| Bismuth (Bi) | 0.20 - 0.60 |
| Zinc (Zn) | 0.0 - 0.30 |
| Other (Each) | 0.0 - 0.15 |
| Others (Total) | 0.0 - 0.05 |
| Aluminium (Al) | Balance |
Mechanical properties of 2011 aluminum bar (BS EN 755-2)
If your application requires specific physical properties, please contact us to ensure this material meets your needs.Quick Quote
| Temper | Dimension (mm) | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
| T4 | Rod/Bar ≤ 200 | Min. 275 | Min. 125 | 14 | 95 |
| T6 | Rod/Bar ≤ 75 | Min. 310 | Min. 230 | 8 | 110 |
| T6 | 75 < Rod/Bar ≤ 200 | Min. 295 | Min. 195 | 6 | 110 |
Physical properties of 2011 aluminum bar
The 2011 aluminum bar is not only easy to machine but also offers excellent electrical and thermal conductivity, making it an ideal choice for your electrical and thermal management solutions.
| Physical Property | Value |
| Density | 2.83 g/cm³ |
| Modulus of Elasticity | 70 GPa |
| Electrical Resistivity | 0.038 x10^-6 Ω .m |
| Thermal Conductivity | 151 W/m.K |
| Thermal Expansion | 22.9 x10^-6 /K |
| Melting Point | 535 °C |
Tolerances of 2011 aluminum bar
The 2011 aluminum bars we supply exhibit outstanding performance in machining accuracy, achieving very tight tolerance control.
Tolerances of 2011 aluminum round bar
| Diameter (inches) | Tolerance (inches) |
| .125 - .500 | ±0.0015 |
| .501 - 1.000 | ±0.002 |
| 1.001 - 1.500 | ±0.0025 |
| 1.501 - 2.000 | ±0.004 |
| 2.001 - 3.000 | ±0.006 |
| 3.001 - 3.375 | ±0.008 |
Tolerances of 2011 aluminum hex bar
| Diameter (inches) | Tolerance (inches) |
| .125 - .500 | ±0.002 |
| .501 - 1.000 | ±0.0025 |
| 1.001 - 1.500 | ±0.003 |
| 1.501 - 2.000 | ±0.005 |
| 2.001 - 3.000 | ±0.008 |
Typical applications of 2011 aluminum bar
The 2011 aluminum bar is widely used in the manufacturing of precision parts that require high-speed and repetitive machining due to its excellent cutting performance and tight tolerances.
- Electronics and Electrical Industry: Connectors, computer components, TV accessories, phone parts, radio parts.
- Automotive Industry: Brake pistons, automotive interiors, fuel system components, carburetor parts.
- Machinery and Industrial Equipment: Fasteners, adapters, precision gears, machine parts, spindles, tubes, filters.
- Home Appliances and Decorative Items: Appliance parts, knobs, decorative elements, hose components.
- Watches and Instruments: Watch parts, instrument shafts, speedometer components, mechanical parts.
- Stationery and Photography Equipment: Pencil and pen parts, camera components, tripod accessories.
- Military and Other Industries: Armament parts, atomizers, automatic screw machine parts, oil line filters.
Whether you need 2011 aluminum bars for aerospace, automotive, or general machining, Mastar provides superior products.
Anodizing: a key to corrosion resistance for 2011 aluminum bar
The corrosion resistance of the 2011 aluminum bar is relatively poor. Anodizing not only effectively improves the corrosion resistance of the 2011 aluminum bar but also enhances its appearance and durability, allowing it to perform exceptionally well in harsh environments.
Welding considerations for 2011 aluminum alloy
Due to the extremely poor weldability of the 2011 aluminum alloy, welding is generally not recommended. However, considering that this alloy is mainly used for part machining, there is typically little need for welding.
Equivalent names for 2011 aluminum bar
- AlCu6BiPb
- FC1
- A92011
- CB60
- 3.1655
- AlCuBiPb
Environmentally friendly alternative to 2011 aluminum bar - lead-free 2011B aluminum bar
- Mastar's eco-friendly 2011B aluminum bar is an ideal substitute for the 2011 aluminum bar, using tin (Sn) and bismuth (Bi) in its chemical composition to replace traditional lead elements. It is non-toxic and fully compliant with EU environmental regulations.
- This lead-free, easy-to-machine aluminum alloy features a unique low melting point structure, allowing it to maintain stable machining performance during high-speed cutting.
- Additionally, it boasts excellent cold and hot forming capabilities, as well as outstanding corrosion resistance and coloring properties, making it an ideal choice for efficient cutting operations while meeting environmental requirements.
To meet diverse machining requirements, Mastar also offers a wide range of other free-machining aluminum bar alloys, including 207, 6262, 6012, 2A12, 2618, and 6261. These materials provide excellent cutting performance and are suitable for use in automatic lathes, CNC machining, and precision parts production.Feel free to explore the full selection or contact our engineering team for alloy selection advice.
