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  • Users: Steinoff
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  1. Steinoff

    Turbocharger impeller wheels

    I want to redesign the turbo impeller wheels in my turbocharger to help the spooling issue that the large turbo has. I was wondering what material the impeller wheels are made from. Thanks in advance,Stein
  2. Steinoff

    Best heat treat method for 300M

    I have made some shafts from 300M material. Before heat treating I contacted the mill and asked them for the best method of heat treat,we went over the cert papers etc and they said renormalize 1700F for 1 hour followed by air cool. Then 1600F for 1 hour ,oil quench and temper 575F for 4-6 hours...
  3. Steinoff

    Maragng steel or 300M

    For the purpose of making torsional shafts which will see only a twisting action. The maraging steels are nice to use because they are low temp heat treat with air cooling where as the 300M requires quenching to harden, which in turn adds a straightening step in the process before finish...

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