Newbie Thermal Expansion Question

[Uncleburt]

Hello,
I want to find out the time it took x length of SA-210 steel to cool to a given temperature. Unfortunately I cannot get to my references as I am on travel. Does anyone have the equation to calculate that? If possible I would also like the coeff. of thermal expansion.
Thanks alot for the help,
Joe

 

[metengr]

The time to cool steel can be calculated assuming Newtonian Cooling using the Lumped Capacitance Method.

Coefficient of thermal expansion for SA 210 carbon steel boiler tubing is typically
~6.7 X 10^-6 in/in/deg F up to about 400 deg F.

 

[IRstuff]

Time also depends on how it's cooled, e.g., forced vs natural convection or conduction?

TTFN