Comment on Aluminum

sparkle@lemm.ee ⁨2⁩ ⁨months⁩ ago

• labsin@sh.itjust.works ⁨2⁩ ⁨months⁩ ago

  Pure aluminium is only used when you need to have very little reactivity.

  General construction steel have >98% weight iron. Around the same as most aluminium alloys.

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  • sparkle@lemm.ee ⁨2⁩ ⁨months⁩ ago

    Really now? I thought most steel had way more carbon & chromium than that. I guess I underestimate how little is needed to make iron no longer mushy.

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    • general_kitten@sopuli.xyz ⁨2⁩ ⁨months⁩ ago

      It is mainly only in stainless steels that have anything other than iron in high concentrations, they might have something like 30% of their weight elements other than iron

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• repungnant_canary@lemmy.world ⁨2⁩ ⁨months⁩ ago

  You as a human use pure iron. But non-animate objects, yeah mostly alloys

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• blind3rdeye@lemm.ee ⁨2⁩ ⁨months⁩ ago

  Perhaps so, but one might argue that human tech relies more on iron than any other metal - because of its magnetic properties. We need iron to generate and manipulate electricity.

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• pyre@lemmy.world ⁨2⁩ ⁨months⁩ ago

  sounds like a good argument for iron.

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• Ohmmy@lemmy.dbzer0.com ⁨2⁩ ⁨months⁩ ago

  Sounds like aluminum is a loaner and iron plays well with others. I’d bet there is still more iron encountered every day than aluminum even if the aluminum is pure and the iron is alloyed.

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