<font face="Verdana, Arial" size="2">Originally posted by Bart student:
Damesteel is a mix of powdersteel copies of ATS-34 and 12C27. It basically feels like ATS-34, but it should rust less and take a sharper edge, but that difference is like the difference between ATS-34 and 154-CM... minimal.
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Damasteel is described as a powdered yet layered version of ATS-34 and 12C27.
Problem is, 12C27 has a low (0.6%) carbon level compared to 1.05% for ATS-34. That means during heat treat, carbon will migrate (decarburization) from the ATS-34 to the 12C27, resulting in, at the boundaries and in general, a soup that is somewhere in between the two steels.
So, that means that the BEST a damascus steel can perform is going to be similar to the best steel in the mix, only degraded by some amount. I.e., Damasteel should perform somewhere between ATS-34 and 12C27. And that, my friends, is back to just "ok" performance, something like GIN-1 or say AUS-8 or AUS-10. But it sure looks great.
I realize this might pop a lot of people's damascus bubble, but it's true, just like "heat treat matters most" is true. Might as well cut through the smoke and hype sooner rather than later.
The damascus cutting effect, i.e. that supposed extra cutting effect from the layers in a ladder pattern acting like tiny serrations, is mostly undetectable, mostly lore. After all, your cutting edge is pretty smooth typically. You can achieve a more pronounced effect by using a diamond stone to get a biting/toothy edge.
I have a Damasteel blade by Darrel Ralph, and in fact, it takes a pretty good edge IF I use a diamond stone, but nothing like a 440V or 420V edge. And in fact, if I tested the blade, I'm pretty confident it would underperform a well heat treated ATS-34 blade.
So, what gives. If you want both looks and performance, you must eventually see that Mike Norris is the current king of stainless performance damascus: he makes a stainless damascus sandwich (San Mai) with 440V and 420V as the core. This looks great, and should perform a notch below 440V or 420V with a good heat treat.
[This message has been edited by rdangerer (edited 02-03-2001).]