On Wed, 16 May 2012 06:47:23 -0700 (PDT), Molly Brown
wrote:


I know it was hardened steel and not stainless steel because stainless
steel is barely magnetic and this bolt was held firmly by a magnet
when I tested it after removing it.
I know it was hardened because even though I used completely new
cobalt bits in different sizes none of them could make more than a
scratch on it.
I am not familiar with the word “gauling”. What does it mean?


Some info on "stainless steel" and "galling" is available
he

http://www.estainlesssteel.com/


More good stuff he

http://www.aksteel.com/pdf/markets_p...Comparator.pdf

--
croy