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  1. rwilcox

    4130 dimensional change in heat treatment

    There is a definite volumetric change due to crystal structure changes in austenitization and martensite formation, amonng others. I have gotten best estimates of .0005 in/in to .002 in/in as a max. It varies depending on the particular alloy and teh tempering temperature. Thanks
  2. rwilcox

    4130 dimensional change in heat treatment

    What I am looking for is a general rule of thumb for the volumetric change of 4130 with a standard quench and temper process....
  3. rwilcox

    4130 dimensional change in heat treatment

    We have a cast 4130 part that we quench and temper to RC 44-48. How much will the material grow or shrink in heat treatment? Is there a reference which tabulates growht and shrinkage of various steels in heat treatment? Thanks

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