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  1. tailwind

    Material replacement 17-4 SS

    The current pins are manufactured from 4130 hardened to 125K psi and cadmium plated. I am thinking of replacing them with 17-4 stainless steel in the H1150 condition. The machinists tell me they can turn them just fine in this condition. I can purchase the stainless steel in this condition...
  2. tailwind

    tempering info

    Thank you much unclesyd. These are 1/2 inch pins, perfect. I interpolated from a chart that stops at 1050 deg F and got just slightly different numbers, but close enough. The numbers varify. Thanks again.
  3. tailwind

    tempering info

    what is the HRC and TS of 4130 after quence for tempering to : 1050 deg F 1100 deg F 1150 deg F 1200 deg F Thanks All

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