Series 2: Al-Cu aluminum-copper alloy

Features: Aluminum alloy with copper as the main element. Manganese, magnesium, lead and bismuth are also added for machinability. The disadvantage is that the intergranular corrosion tendency is serious.

Applications: Aviation industry (2014 alloy), screws (2011 alloy) and industries with higher temperatures (2017 alloy).

Typical grade: 2011 alloy, aluminum plate fast cutting alloy, good machinability and high strength, but poor corrosion resistance. 2014 alloy for aerospace industry, high strength. The 2017 alloy is a little less strong than the 2014 alloy, but it is easier to work. 2618 alloy for forging aluminum plates. High temperature strength is superior but corrosion resistance is not good. Piston, rubber forming die, general heat-resistant components. 2219 aluminum plate has high strength, good low and high temperature characteristics, excellent solubility, but poor corrosion resistance. Cryogenic containers, aerospace machines.