Thanks corus. Your reply made me search radiation which I found H = e*theta*A*(T^4-Ta^4). Now it's all about finding the right emissivity constant for steel. The temps are so high I'm now only going to consider radiation.
NOT A HOMEWORK PROBLEM. I work at a tool forging company in Skokie, Il. 3rd day on the job and they gave me this problem. Were're more design. Think I'm going with the lumped capacitance way because the k of steel is 29 W/m*K but the L in meters is .05 so hopefully I can get away with it...
I have a somewhat rectangle of .75 in x .75 in x 2 in. piece of low-carbon steel (1069) starting at 2250 F going to 1800 F set alone to cool off in 65 F air and need to find an approx. time between temps. I'm assuming no radiation, no forced convection, the grip holder is not affecting it and...
