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Which aluminium alloy is used in the Boeing 747's fuselage?

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  • $\begingroup$ I will, Thanks. $\endgroup$
    – engineering student
    Commented Mar 26, 2018 at 20:39
  • $\begingroup$ Related $\endgroup$
    – Pondlife
    Commented Mar 27, 2018 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:

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Materials of Civilian Aircraft

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