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A question about actual keys. Aluminum vs Traditional Metals

Discussion in 'Keychain Tools' started by KentuckyRock17, Oct 22, 2016.

  1. KentuckyRock17
    • In Omnia Paratus

    KentuckyRock17 Uber Prepared

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    So, I'm looking to have an extra key made for the house, that way when I go out with someone, I can leave my car keys at home.

    Now, the weight is negligible, but are there any serious concerns about aluminum being used as the metal instead of brass or steel?
     
  2. 0dBm

    0dBm Loaded Pockets

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    Aluminum is softer than brass and not nearly as durable when subjected to constant usage particularly when surface to surface contact in conjunction with torsion. Unlocking a door lock with a key is such an application. If done every day, the aluminum key will eventually wear to uselessness if not actually broken. Occasional usage is OK; however, it should be halted when obvious sign of extreme wear is immediately noticed.
     
  3. WillAdams

    WillAdams Loaded Pockets

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    My Geo Metro came w/ a plastic key for the wallet for (stupid) emergencies.
     
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  4. Westerdutch

    Westerdutch Loaded Pockets

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    Yeah, aluminium is fine for intermediate use in light locks where you just turn the cilinder and dont actually do much more. Where the key has to do actual work you are better off with a stronger metal, doors that don't have a door-handle or knob you can turn to work spring to mind as being better suited with a steel key. A cheap aluminium key is only cheap as long as it doesn't snap off on you, when it does it all of a sudden could become quite a pricey affair.
     
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  5. jag-engr
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    jag-engr Semper Bufo!
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    I don't know that aluminum keys are cheap, at least not in the US. The only ones that I know of are Silca Ultralite or JMA (marketed by KeySmart as "AirKeys"), and they cost more than brass.

    The strength really isn't the critical issue - it has to do primarily with the durability aspect. Aluminum is more prone to metal fatigue. (Wikipedia article)

    Well-stated.
     
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  6. Nick4305
    • In Omnia Paratus

    Nick4305 EDC Junkie!!!!!

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    I have some in my keyring.
    Are lightweight, don't rust and pretty colored.
    As above well stated, you need to swap them as frequently as you use those, they won't last long.
     
  7. Gogogordy

    Gogogordy Loaded Pockets

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    LOL this post really dates you! 1) Geo Metro 2) "came with" as in bought new...
    (Those were great little cars BTW)
     
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  8. WillAdams

    WillAdams Loaded Pockets

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    Yeah. I really regret getting rid of it, and would be glad of the chance to find a convertible Metro.
     
  9. Moshe ben David

    Moshe ben David Loaded Pockets

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    mmm. Maybe if you find a regular Metro, using a SAK (can opener) you could 'mod' it to be a convertible? :cool:

    Sorry. No will power to resist!

    L'chaim!

    Moshe ben David
     
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  10. Zeljko

    Zeljko Loaded Pockets

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    Few days ago i weighed the keys.. aluminum 2 grams and classic metal key is 10 grams. I have 5 keyes.