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Welding 7000 Series Aluminum. This means that 7050 alloy can be very sensitive to electrolysis also called electrolytic corrosion. Eastons Scandium is a 7000 series alloy.
The 1xxx 3xxx and 5xxx series wrought aluminum alloys are non-heat treatable and are strain hardenable only. You could physically weld almost any aluminum alloy to Scandium but youd have problems when you went to heat treat the finished product. 1000 3000 4000 5000.
Welding International Volume 26 2012 - Issue 4.
When you weld a 7000 series aluminum you lose strength at the weld. It is a very very high strength alloy. The main alloying elements of these materials are defined in the 2000 6000 and 7000 series aluminum alloys. The Aluminum Association alloy designation tables show zinc in the range of 57 to 67 percent.