3 Questions: UN-X-LD? Hammer Tested? Frozen Forged?

Bastid said:
This forum is not the place for the discussion of testing and it will remain that way.
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This forum's head is:
Knife Reviews & Testing The place to come for actual first hand information on specific knives and how they perform. Your own personal Consumer Reports of Knives.
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So, what's wrong with discussion of knife testing here? Is not it the source of actual first hand information on specific knives and how they perform?
 
Rozen said:
This forum's head is:


So, what's wrong with discussion of knife testing here? Is not it the source of actual first hand information on specific knives and how they perform?
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This thread was started in another forum and was moved to Knife Reviews & Testing.
 
knifeswapper said:
From the factory:

Hammer Tested: They test a sample of every batch coming out of heat treat by pulling across a bow while hitting with a hammer. This insures they are not brittle.

Frozen Forged: At heat treat once they come out of the furnace, they 1) get an oil quench, then 2) a preliminary temper, then 3) are cryogenically treated to improve temper, then 4) heat tempered again to finalize process.

Hopefully I didn't mess up what he said too bad.

Mike Latham
CollectorKnives.Net
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Is it possible that step three (cryogenic treating) is done to improve hardening, rather than temper?
 
CountyRat said:
Is it possible that step three (cryogenic treating) is done to improve hardening, rather than temper?
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No.

Lovely little nice, I want one too. I have a GEC single blade but its a little too big to EDC, would love one in a Canoe size.
 
CountyRat said:
Is it possible that step three (cryogenic treating) is done to improve hardening, rather than temper?
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It's tempering. Depending on the brand, they all had special names for it.

Robeson's was "frozen heat", Henckels had "friodur", Schlieper used the plain vanilla "ice tempered/harded".

For an explaination of Robeson's early process, see here- http://www.knife-expert.com/stlessh.txt .

Most of these deal with stainless steels, but some also use it with carbon.
 
I will pray for that knife that it is not bashed with a hammer, or blade snapped by lateral pressure. It would be just down right heinous.
 
I think you have Nozh mixed up with Noss, the hockey mask guy.
 
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