Hey, does anyone know how much ampco 18 might expand under heating ? I have a solid 2.5" piece of ampco 18 which will be heated under operation and I am wondering how much it will increase in diametre durning the heating in operating conditions? I noticed when we turned it on the lathe the piece shrunk .003" once it cooled so I was a little worried as to how much it might grow ? Any help is appreciated.
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