To answer your question stainless is not a good conductor. It is one of the worst metal conductors.
Look up "Properties Of Materials", "Thermal Conductivity", and "Electrical Conductivity"
Best conductors are; Gold, Silver, Copper, Aluminun.
The W/ m K for 99.99% copper is 401.
For stainless it's about 7 I think.
http://environmentalchemistry.com/yogi/periodic/
electrical.html
Stainless is made from Chromium, Nickle and Iron (I think)
Your answer of cobalt is correct in terms of electrical conductivity.
Post edited by: jmborchers, at: 2008/08/22 22:59