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Hello,

I need to calculate heat flux in W/m2 through a small cylindrical steel bar measuring 12mm length x 2mm diameter. At one end of the bar the temperature is 31C (the heated side) and at the other end it's 28C.

How do I calculate the heat flux in the above scenario? Is it possible? I'm guessing that I need to know the thermal conductivity of the steel at least?

Any assistance would be much appreciated.

Many Thanks

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# How do you calculate heat flux through a piece of metal?

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