Brazilian Knives

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sea.monster.ralph

Joined
Oct 21, 2009
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on a recent trip to brazil, my dad picked up this knife for me.
tarantula.jpg


its made in brazil by a company called zakharov. the model is the tarantula.
besides the company website, i couldnt find much information about this knife. the website doesnt offer a whole lot of information either. basically it has the measurements, mentions that it is one piece of steel, has kevlar cord wrapped around the handle, and has a saw on the dorsal side. which is obvious just by looking at the knife. if anyone is familiar with this knife, or with the company, any information would be greatly appreciated. thanks.

http://www.zakharov.com.br/detalhes.asp?cod=P-M59&pesquisa2=500#
 
http://www.zakharov.com.br/historia.asp
I think I get the gist of this. Russian family emigrated to Brazil. The family had been in the knife business for generations in Russia. They brought that knowledge to their new home and continued the family business there.

You will need someone who actually speaks Portuguese to be sure.

http://www.zakharov.com.br/dicas_2.asp?coddica=100005
If I read this correctly, they runt their blades at a hardness of 58-60HRC, but I did not recognize any of the text as an alloy reference. I saw "INOX" several times. But that just means "stainless".
 
here we go, 58-60HRC
INOX Chromo Molibdenio?
PTFE covering to prevent oxidation
and a coat of KTL for anti-reflection.

not that i know what any of that means.
 
i tried googling stainless chromium molybdenum steel, but couldnt get much i thought was applicable. i rekon its martensitic (which there are a few of)? i see that alot of the knife steels mentioned are referred to by a number, does this kind have a number i can look up to see its attributes? is this steel any good?
 
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I think they probably use 440C (i.e. I hope they don't use A or B) also known as X105CrMo17 in Germany.
 
Outdoors Fanatic said:
That stands for: Stainless Chromium Molybdenum [steel]. Muella/Aitor and many European knife makers use that type of steel.
Click to expand...

sea.monster.ralph said:
It says INOX Chromium Molybdenum. Can Chromoly be classified as a stainless steel?
Click to expand...

If the steel maker uses controlled amounts of Chromium and Molybdenum in the alloy, it can be called "Chrome Moly". What I'm trying to say is that a LOT of alloys could be called "Chrome Moly". Look at the steel composition page at AG Russell and you can see that everything from 420HC to 440C to 20CV to VG10 has controlled amounts of Moly and Chrome.
http://www.agrussell.com/Steel_Guide/a/73/


highanddry said:
I think they probably use 440C (i.e. I hope they don't use A or B) also known as X105CrMo17 in Germany.
Click to expand...
There is nothing to indicate they use 440C.
 
it could be also a modification from the clasic 420, wich is 420 MoV(molibdenium, vanadium) a slightly superior alloy.
greetings
fernando
 
Old bmx chrome molt had a 4140 attached to the name. I have always wondered about that steel too.
 
crom said:
Old bmx chrome molt had a 4140 attached to the name. I have always wondered about that steel too.
Click to expand...

"4140" is an AISI designation. (American Iron and Steel Institute)

C_____0.38-0.43
Mn____0.75-1.00
P_____0.035 (max)
S ____ 0.04 (max)
Si ____0.15-0.30
Cr ___ 0.80-1.10
Mo____0.15-0.25

Tough and strong. Good choice for bicycle frame.

Hmmm... An apt enough 8,000th post.
Yup. 8,000 posts and a couple of bucks will get me a trolley ride. one way.
 
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hi guys, Im from Brazil, and heard about zakharov knifes since i was a kid, is a kind of legend knife here with many tales like "Z kinfe can cut nails" (probable) but as you guys sad there s no informations about. I try to ask the company by email but they didnt say more than you find. its a stainless steel and is a russian imigrant that started the company that is ruled now by his sons. Its the best knife made in Brazil but when we see blades like Busse Combat i can say nothing more...
there is other good knife maker i've never tested out any of his knifes but they are beautiful http://www.gtcknives.com/ (i hope im not breking any of the forum rules with this link)
sorry about the bad english
 
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