Posted by Matt on Friday, July 14, 2006 at 10:31PM :
In Reply to: For you metalurgists out there posted by Doc Dave on Friday, July 14, 2006 at 2:02PM :
They are different grades of steel. A grade 2 can never be hardened to a grade 5 level. In a controlled furnace a grade 5 could be drawn, (heated to a less than red hot temp for a given period of time) to become the same hardness. Best to just buy the real thing... or look at McMaster Carr on the web. They have it all