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Rule of thumb for expansion rate of steel?

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  • Rule of thumb for expansion rate of steel?

    I'm wanting to shrink on a 4140 sleeve to fix a motor shaft and was curious what the expansion rate of steel is. Hoping to do some Jethro Bodine cypherin' and goesintas to see if it'll work. I have the factor for aluminum written down in my notebook (roughly .0013% per 1 degree F) but don't have it for steel.

    "Accuracy is the sum total of your compensating mistakes."

    "The thing I hate about an argument is that it always interrupts a discussion." G. K. Chesterton

  • #2
    Here ya go....
    Home, down in the valley behind the Red Angus
    Bad Decisions Make Good Stories​

    Location: British Columbia


    • #3
      It's about 6 millionths of an inch per inch per degree F...about half that of aluminum.
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