Z-TUFF

Seedy Lot said:
Thank you. I still have not ventured into cryo as it is an hour and half drive and 15 dollars per liter to obtain. I am not having performance issues not using cryo but I see with some steels if i want higher hardness than it is a route i will have to take.
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I made a knife for my cryo guy, and he fills my 20l dewar but just charges me for 5. He says he hates charging for it, as it is a byproduct of other processes that would just be disposed of anyway.
 
I have been searching and following these threads on Z -Tuff, I am working on my first 12" z tuff blade that is 1/4" thick, not sure if I should go with low or high temper, I have had great luck with Z Wear and 4E with low temper.
Has anyone done more testing?
This is going to be a chopper/survival, I'm leaning towards the low temper setup for the added corrosion resistance and edge stability
 
Chris.. said:
I have been searching and following these threads on Z -Tuff, I am working on my first 12" z tuff blade that is 1/4" thick, not sure if I should go with low or high temper, I have had great luck with Z Wear and 4E with low temper.
Has anyone done more testing?
This is going to be a chopper/survival, I'm leaning towards the low temper setup for the added corrosion resistance and edge stability
Click to expand...

Go low temper. We are still waiting on surface grinding of the other test conditions. The toughness result in the chart above was low temper. Every steel tested so far, other than M2 had better toughness with low temper. You get better corrosion resistance too.
 
Chris.. said:
I have been searching and following these threads on Z -Tuff, I am working on my first 12" z tuff blade that is 1/4" thick, not sure if I should go with low or high temper, I have had great luck with Z Wear and 4E with low temper.
Has anyone done more testing?
This is going to be a chopper/survival, I'm leaning towards the low temper setup for the added corrosion resistance and edge stability
Click to expand...
In extreme testing, high temper in this steel seems to be tougher, but the edge will deform easier. Toughness, in the sense that I can’t break the knife I’ve been testing with the high temper. I austenized at 1900, 30 minutes plate quench, triple temper at 1000. Extreme over all toughness. But much better fine edge stability with the low temper. That’s in my limited testing. Corrosion resistance is also much better with the low temper.
 
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