Cronidur30 Evo?

Hairlesstwinkie

Hairlesstwinkie

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Feb 4, 2013
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I would like more information on this steel like composition, similar to <insert steel>, and user feedbacks. I know that Cronidur30 is a German steel, but aside from that I don't know anything else. The only thing that I can find is on Russian forums and I don't trust my browser translator. I know that some Shirogorovs have them, but that's the extent of it.
 
I actually think it's Swiss steel. Has a high n2 content which should make it very very corrosion resistant. Boker has used it some and it's more common in food service cutlery, with some high end knives offering it as an option. Also, it should be tough and abrasion resistant. I have a couple Shiro in it but haven't had them long enough to judge yet. It also had a very fine grain so should take a very good edge.
 
Hairlesstwinkie said:
I'm curious about the difference between the evo and the regular 30
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It is all same steel if we speak about composition. EVO means a special TMO made by Alan Balikoev, a well-known technical spec in Russian knife-makers groups. With his TMO Cronidur30 edge retention is increased.
 
Dmitry13 said:
It is all same steel if we speak about composition. EVO means a special TMO made by Alan Balikoev, a well-known technical spec in Russian knife-makers groups. With his TMO Cronidur30 edge retention is increased.
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Hmm, what the "TMO" stand for? Dmitry, you have a Cronidur 30 Evo on your shiro, what's your thought on it? What steel is it similar to?
 
Sorry TMO/TO - is a Russian shortening of steel heat treatment)))) - the process of tempering steel to the required harndess with certain conditions fullfilled.

Shirogorovs often use this steel on their basic models, same price level to S30V or S35VN.
Nice working steel with several specs:
- it has extremely high corrosion resistance due to nitrogen
- it's hard to sharpen the edge to hair-popping level (I don't use fine and ultrafine sharpeing stones for this steel, only medium - if we talk about Spyderco Triangle)
- only 4-6 moves on the Triangle to retain the cutting edge sharp enough to perfom a job and it is keeping an edge long enough - yes, very easy to sharpen the blade
- it's a rather malleable steel, so almost no edge chipping (like you can face of S30V), but crumpling can take place that can be recovered if you have a stone
- the blade gets scratches very quickly, no deal about the performance, it's an esthetical issue

Similar to? Hm... Hard to compare. Better than AUS8 cutting performance, higher than 440C corrosion resistance, easier than 3V blade service :)
 
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