Is it just marketing or is there an actual structural difference?
In: 807
Whatever they call the aluminium, it has to be finished. I spent my life hard coating, anodising, Za , phosphating and plating the stuff.
1000 series… to soft to be of much value anywhere in space or the military.
2000 series…high copper alloy with conductivity value. Utter bitch to finish.
6000 series…bog standard, 90% usability, easy to finish.
7000 series. High zinc content, strongest alloy. Lots of finishing problems.
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