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View Full Version : Rule of thumb for expansion rate of steel?



DICKEYBIRD
12-24-2008, 12:08 PM
I'm wanting to shrink on a 4140 sleeve to fix a motor shaft and was curious what the expansion rate of steel is. Hoping to do some Jethro Bodine cypherin' and goesintas to see if it'll work. I have the factor for aluminum written down in my notebook (roughly .0013% per 1 degree F) but don't have it for steel.

Willy
12-24-2008, 12:48 PM
Here ya go....

http://www.engineeringtoolbox.com/pipes-temperature-expansion-coefficients-d_48.html

SGW
12-24-2008, 01:51 PM
It's about 6 millionths of an inch per inch per degree F...about half that of aluminum.