Material
Aluminum 2011 (AW-2011)
Aluminum AW-2011 is the reference-standard free-machining aluminum alloy, though it has poor corrosion resistance and almost no weldability.
Manufacturing processes
About
AW-2011 (AlCu6BiPb) is a copper-based aluminum alloy with bismuth and lead additions that act as built-in chip breakers, giving it the highest machinability rating of any common aluminum.
The Aluminum Association uses 2011 as the 100% reference point that every other aluminum alloy is rated against. This machinability comes at a cost: Corrosion resistance is poor, weldability is arguably nonexistent, and its leaded composition rules out food, medical, or potable-water applications.
Aluminum 2011 is a good option for fittings, fasteners, connector bodies, and precision screw-machine parts like small gears and clock or camera components.
Technical Details
- Accuracy
- ±0.2% (lower limit of ±0.13 mm)
- Density
- 2.83 g/cm³
- Min. wall thickness
- -
Technical Properties
- Embossing
- min. 0.3 mm
- Engraving
- min. 0.3 mm
- Warping risk
- N/A