Ampco 18 ?

[Jamaz17]

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.

Thanks,
James

 

[unclesyd]

.000009" per degree F from 68°F to 572°F.

This value will vary a little depending on the source this is an average of 4 sources.