- Joined
- Mar 27, 2015
- Messages
- 3,025
the term "propriety heat treat" doesn't apply nowadays. Specially where you have facilities the does professional heat treating and mettalurgists that works for them.
That being said, INFI is a very unique steel that Jerry perfected.
Sure it applies these days and it always will. The way I understand it, Busse's heat treat is performed in house and the complete process is unknown to others. Even if a third party heat treated his blades, the process could still be legally protected and unable to be disclosed or used for any other manufacturer.