Whats the ultimate steel for a blade?

I'd go with a laminate of Adamantium on top of Vibranium. Vibranium for strength and flexibility but Adamantium for the ability to take and keep a screaming sharp edge. Vibranium is a total pita to work with on my sharpening stones. It keeps breaking them.

Of course, neither Adamantium nor Vibranium work well as a machine steel, so we'd go with Unobtainium for the assembly hardware (security Torx head, of course).
Which type of Adamantium do you use? You know there are ten , right? That's , of course , if you count Carbonadium which is a lower grade but much more malleable and flexible form of the Adamantium compound.

Unobtanium is so outdated/outclassed these days (like how D2 is). Dragonite is the current king of the hill.
 
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Haven't tried all of them but I have been very comfortable with CPM 154 and M390 for folders of the modern steels.
 
O-1 High Carbon
O-1 is a high carbon, oil hardening tool steel. Popular with custom knife makers it is used both for stock removal and forged knives around the world. With the proper heat treatment it will take and hold a very fine edge while remaining very tough and durable. An ideal high carbon steel for tough edged weapons
 
Why do these threads always arise? Lol. Their is no answer to this. Other than it depends on the user and what they want in a knife steel.

The op didn't define what they are looking for in particular.
 
As most have stated there isn't one right answer ... some of my favorites range from 52100 or 5160 up to D3V or M390 ... all depends on the knife or axe or cutting tool and intended use ...

But that custom made from the leftover wreckage from Area 51 might be my favorite ... at least until that Skywalker fellow returns my light saber ... not pointing any fingers here ... LUKE!

wait maybe I wasn't supposed to mention that? ... hope that's Luke in one of the black suburns that just pulled up ...
 
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I carry and use folders almost exclusively. And I favor edge retention and corrosion resistance most for my needs. So I like M390/204P/20CV very much.
 
Smartness leads us to know there are many things we don't know. Wisdom reflects decision making based on smartness+kills+knowledge+etc. The knife served you best is the best. 'Served' includes performance; value; emotion and whatever suit you for whatever you are doing/using-for. Knowledge & skills can be your own and adopted/learned (easy & hard).

Gathering data+opinions are mostly philosophical because statistical trust involves. Thereby my philosophical answer...

Best knife is the one that - when everything the same (material, geometry, ergo, sharpening, maint, etc...) - serves you best. For an instance, a sheep shaving knife in aebl, the best one would be the one performed best (qualitatively & quantitatively). In general knife performance curve - for a material - higher working edge hardness often correlates to higher amount of work-done. Throwing in material as a variable to this 'served best' equation for sheep shaving requirement, so for higher wear resistance steels that meet shaving quality and exceed quantity requirement would be better than aebl - obviously.

My favorite top 5 steels at 64+rc: Niolox, 10V, M4, W2, _ . Others are very close to the top too - thus, could say, I like most steels given proper/great ht.

I would suggest trying a knife from BluntCut MetalWorks BluntCut MetalWorks his heat treatment for any steel will be far better than any mass produced knife. And I'd like to hear his favorite ultimate steel types.
 
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