



 
One degree C is exactly 9/5 = 1.8 degree F. Thus the answer is 0.00001161/(deg C). (You may omit the length unit unless you want (say) to plug in length in feet and get back expansion in millimeters.) There is probably enough variation between steels that both these numbers are overprecise; I suspect that 0.000012/(deg C) claims the actual appropriate precision. RD  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 