Andy,
WOW. Thanks a lot. Im not sure how long it would have taken me to arrive at that conclusion. I think it might take a few hours to set in, but I can definitely follow you. I really appreciate the help.
Matt
Oops, I was unclear. I have a production manager who insists that 440C will undergo PERMANENT shrinkage when heat treated (specifically to Rockwell 58-62C)
The only reason I can think of is that the martensite is changing to ferrite and cementite, which is causing an EXTREMELY small amount...
Does 440C typically undergo any shrinkage during heat treat. If so what expansion coefficient should be used (or suggestions as to where to find this).
