The alloying element in 2011 is copper, which is a free-cutting alloy containing trace amounts of lead and bismuth. It has high strength and good cutting performance, but it has poor corrosion resistance. It is commonly found in bars, pipes and wires. 2011 aluminum alloy is used to manufacture screws and machined products that require good cutting performance.
Standard comparison: Aluminum Association (AA) 2011, UNS A92011, ISO R209 AlCu6BiPb; China GB 2011
2011 T8 drawn rod aluminium metal stock chemical composition
Aluminum Al (minimum): margin
Silicon Si: ≤0.40 Iron Fe: ≤0.7 Copper Cu: 5.0~6.0
Zinc Zn: ≤0.30 silicon + iron Si+Fe: ≤0.40
Lead Pb: 0.2~0.6 Bi: 0.2~0.6
Other elements not specified: each type: ≤0.05; total: ≤0.15
