2519 aluminium alloy

AA 2519 is an aluminium alloy principally containing copper (5.3–6.4%) as an alloying element. It also contains 0.25% silicon, 0.30% iron, 0.10–0.50% manganese, 0.05–0.40% magnesium, 0.10% zinc, 0.02–0.10% titanium, 0.05–0.15% vanadium, 0.10–0.25% zirconium, 0.40% silicon-iron compounds, and up to 0.15% trace elements.[1]: 3  The density of 2519 aluminium is 2820 kg/m3.[1]: 16  It was first registered in 1985, in the United States.[1]: 3 

One application for this alloy is in aircraft armor, where it has equivalent ballistic characteristics to AA 7039, and a reduced susceptibility to stress corrosion cracking as compared to AA 5083.[2]: 3-202 

AA 2519-T87 plate is weldable using AA 2319 filler.[2]: 3-202 

Aluminium alloy table

References
  1. International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys, February 2009
  2. Metallic Materials Properties Development and Standardization, January 2003
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