Are there any tips or tricks to IDing a metal type?
I have this flange that I need to weld a pipe to. I've determined that it is ferrous with the ol' magnet trick. But only a strong magnet will hold to it. A weak refridgerator magnet won't stick. It's fairly heavy and machined, so it's pretty shiney. I'm thinking it's stainless steel. Is there anyway to be sure?
Thanks,
Wade AKA the n00b

Dumb question?