View Single Post
  #10  
Old 11-02-2016, 09:27 AM
jimmontg jimmontg is offline
Guru
 
Join Date: Jan 2016
Location: Now live in Las Cruces NM.
Posts: 1,345
Didn't know you had a coal fired forge. If it didn't heat from both sides evenly could be another reason for warping, but if you had the blower going full bore that probably wasn't the problem. Two minutes is definitely quick to bright orange in the daylight. O1 is a tool steel and is best done in an oven where it can be held at the precise temp of 1475 for at a minimum of 5 minutes and I have recently found out that it can go to ten- fifteen for a greater mix of the chrome and tungsten with the carbon and mere 0.20% vanadium. It is more forgiving in some ways, but a 1080 steel might be better (and cheaper) way to learn to HT.
Reply With Quote