Titanium at 60 RC?

Shotgun

Shotgun

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Feb 3, 2006
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Anyone doing anything similar to what these guys are doing? I would love a hiking knife made out of titanium but I thought the RC's were in the low 50's. Maybe a skeletonized neck knife or something similar that doesn't require a carbide coating.

http://www.oceanmaster.com/Knives.htm
 
Danbo said:
Titanium can't be hardened that high, from what I know.
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Hmm. I have to agree with Danbo.

I'll put out a few messages to my more metallurgical colleagues, but I don't expect to receive any surprises. If I do, I'll post the response here.
 
I'd like to know the composition.That's an increase of 5-10 HRc points which is a lot.
 
I asked the guys at work and they said titanium goes up to the mid 40s. But thats 6AL4V. What kind of titanium are they using?
 
I think beta is hardenable at least to 50ish. Pretty sure 6/4 is around 45 and stays around 45.


Ti at 60 would be a big deal. I hope they did do it and will provide details!
 
Got a response from a friend of mine. He says some titanium alloys have been hardened to around 53-55, to his knowledge. He didn't share the particular composition, though.

Even that is more than I expected.
 
A propriatary alloy they claim . But I wonder who makes such things ? There is a new beta-titanium alloy called Ti-B20 but I haven't been able to find hardness data .Perhaps that's the one , it's a Chinese developed alloy just a few years old.
 
Most divers chuckle at the sight of a strapped on "leg knife" with the iconic "Rambo" look to the blade design.

Divers that have been diving for years, use knives similar to a neck knife that allow them to cut fishing line or air hoses when in a pinch....they don't need big knives like that to protect themselves from "sharks".

That said, i'd be sceptical of certain claims....IMO
 
mete said:
A propriatary alloy they claim . But I wonder who makes such things ? There is a new beta-titanium alloy called Ti-B20 but I haven't been able to find hardness data .Perhaps that's the one , it's a Chinese developed alloy just a few years old.
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But it's from China. They only make crap. :D
 
but that would be so easy to test. Why would they lie and how can they get away with it, if all anybody would have to do is a simple non destructive indisputable test. its easy to say "this titanium will out cut steel in any scenario" but hardness is easily quantifiable
 
Yes, it is a Chinese alloy and evidently a Chinese company (Hangzhou). Their marketing is suspect, as the linked website says ground in the US but Hangzhou operations are in China. Also, they claim 60 rc on the page linked, but other pages on the same site say 51-59 rc. I'd be interested in a real hands on review of the product. Ps, sorry for not linking the Chinese page - my back is out and I'm laying on the couch with my phone- don't know how.
 
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