Does anyone have any info/comparisons on T15?

NJBillK

NJBillK

Custom Leather and Fixed Blade modifications.
Joined
Mar 27, 2014
Messages
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From doing some reading online, it sounds pretty nice. Possibly similar to m2(?) but, I figured I would ask in here.

So, does anyone have some experience with T15, what type of blades would it suit? From the looks of it, I was thinking a nice utility steel being a little easier to sharpen than m4 while holding an edge longer than O1.
 
There is no way that T15 would be easier to sharpen than M4. And it is no where near M2. T15 has WAY more carbon WAY more Tungsten and WAY more vanadium. This translates to a matrix of carbides in a very large percentage. With that amount of Cr in there too, the Cr carbides would be huge. T15 is a high temp steel......not the best formulation for knives.

Extremely large carbides and lots of them does not translate to better edge holding. As a matter of fact, it can be the opposite. Plus, working with T15 would be a royal PITA on tools and machinery. CPM M4 is a really really nice knife steel, tho. I would go with CPM M4 over T15.
 
Thanks, I have the distinct disadvantage of Not being able to have any hands on experience regarding anything aside from modding and using knives. So this end of it is just from me reading around and trying to learn when I can do so...

Thanks, something new everyday.
 
I have blades in M2, M4, M35, M42, and T42, all of which are high speed tool steels.
They are excellent and perform better than any others I've ever had.
No experience with T15, but from the looks of the composition, it will be much harder to sharpen than M4, which is the easiest of the bunch listed above.
I say make a blade from it and try it out, I would.
 
NJBillK said:
Thanks, I have the distinct disadvantage of Not being able to have any hands on experience regarding anything aside from modding and using knives. So this end of it is just from me reading around and trying to learn when I can do so...

Thanks, something new everyday.
Click to expand...

I'm with you! When I first saw the T15 composition some years ago, I thought, "wow what a knife that would make!" Even a buddy of mine who has some machining background mentioned to me, "Try to make one in T15". No thanks. I'll let someone else!

Plus, after learning that large carbides and lots of them generally don't translate to good apex stability, I think I'll pass. For me and my own personal taste, M4 is as alloyed as I would like to go (carbon steel). And ONLY CPM M4.
 
samuraistuart said:
When I first saw the T15 composition some years ago, I thought, "wow what a knife that would make!" Even a buddy of mine who has some machining background mentioned to me, "Try to make one in T15". No thanks. I'll let someone else!

Plus, after learning that large carbides and lots of them generally don't translate to good apex stability, I think I'll pass. For me and my own personal taste, M4 is as alloyed as I would like to go (carbon steel). And ONLY CPM M4.
Click to expand...

I don't blame the knife makers not wanting to make knives from tool steels like T15 and the ones I listed.
Except for M2 and CPM M4, those steels are extremely hard to grind (they are hard, but nothing like the others).

But I'm curious, does M35, M42, and T42 have large carbides, and lots of them?
 
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