I am trying to calculate the ampacity through a piece of .01"(.

254e-003m) metal. The metal is stainless steel 304, it has a resistivity of 7.2e-007 ohm-m, a length of .012m, and an area of . 836e-006m^2. There are tons of references to ampacity ratings of copper and aluminum wires, but no resources I could find that tells you how they calculate the current carrying capacity of a particular wire. I just want to know the amount of current this piece of metal can carry without melting. The melting point of this particular type of metal is 1400-1455 degrees celcius. Any help or references would be helpful.Thanks in advance,

-Erik