Which aluminium alloy is used in the Boeing 747's fuselage?
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$\begingroup$ I will, Thanks. $\endgroup$ – engineering student Mar 26 '18 at 20:39
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$\begingroup$ Related $\endgroup$ – Pondlife Mar 27 '18 at 3:02
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The primary alloy for the original 747 is 2024-T3, which is not the strongest or otherwise perfect, but a well-established convenient choice. Second is 7075-T6, used for major load-bearing parts.
7075 is stronger, but less workable and less tough than most; it comes closer to the edge for aluminum, so to speak. 6061 follows for for less-loaded or some more complex parts, where it's a staple, being overall the easiest to use out of common Al alloys. This is not nearly an exhaustive list, just the main alloys.
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Multiple alloys are used. Here is a recycling composition breakdown of this aircraft, not specific to the fuselage:
