I have a customer who has ordered clamp feet made of 440c. What he wishes to achieve is to have a corrosion resistant but also hardenable clamp feet for mixer motors in a salad dressing mfg facility. What I need is exact info on how to heat treat 440c to a state that is both hard and also tough to resist some fairly serious compression and torque without deformation or cracking. The info I have found to date talks of things like soaking but gives no time frame for this step. I have yet to find out if this material needs to be wrapped in 321 foil prior to heating. In general what I have found to date is so incomplete that I cannot go forward with this project. Of course any he3lp at all would be greatly appreciated. Thanks, Dave Ault-
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