Faberware 304 stainless pot magnetism demonstration

So there were all these MDs who were worried about the Curie temperature of high-alloy steels. They were fighting over the fact that some steels — even 304 stainless, which is 18-8 chromium-nickel, 18 chrome 8 nickel stainless steel, the first original stainless steel from 1910 or so — if you cold work it, it can transform from the austenitic phase to a martensitic phase. The martensitic phase can be magnetic. I didn't bring my little pot with me, but I have a Faberware cooking pot that was formed and it was 304 stainless steel, and I take a little magnet and just go up that pot and you can see — at the top of the pot, I'll have to remember to bring it Wednesday — go up that little pot and you can see the increased magnetism where you get more plastic deformation in the steel.