The S30V looks about right based on others’ tests. I’m leaning towards the pm2 based on what others have said and I do plan to get a contego eventually anyways. CPM S110V is simply the all-out full-throttle steel used to create some of the toughest and longest-lasting blades the world has ever seen in the consumer market. M4 needed those carbides smoothed out more so I jumped to 0.25um diamond to feather. Premium American made powdered steel with a uniform micro-structure that provides substantial improvements over other American made steel in wear and corrosion resistance; an excellent high-end steel. Rex 45 at 0.25um very very keen, I was able to whittle a hair into a little Christmas tree. How would s45vn rate vs m390/20cv/204p(my favorite for folding knives)? Maxamet is used when HSS like M4 fail because they are too soft or wear too fast – just consider that for a matter of perspective”… “possessing properties intermediate between conventional high speed tool steels and cemented carbide.” “Wear Resistance: What it is: CPM M4 is a "Crucible Particle Metallurgy" carbon tool steel, widely regarded as a "super steel" for its properties and performance. Maxamet Vs. M4. Im torn between a benchmade contego, and a pm2 in m4 and can’t decide what I want. Posted: 3/19/2010 4:14:01 PM EST The treatment is usually more important than the type of steel. So was crucible out to create a new premium steel? Perhaps just you expected CPM-M4 to be better. The M4 could not feather after 0.5um the M4 was just too aggressive and kepted popping the hairs rather then curling it into a ribbon desipte going back several times. American powdered steel is the toughest available. CPM-S90V. Comparisons must consider whether a user places high priority on edge retention or not; as well as on corrosion resistance since Maxamet is vulnerable to rust if not cared for properly. Am I going to notice a huge difference between m390 and m4? “Maxamet is an extreme alloy, for comparison, it is to 10V what S90V is to 420J2. M42, upgrading can be accomplished by progressing from M42 to CPM Rex 20, CPM Rex 45, CPM Rex 54, CPM T15, CPM Rex 76 or CPM Rex 121. A large volume of vanadium carbides provides the high wear resistance. [ARCHIVED THREAD] - ATTN steel snobs: S30V vs. S60V vs. S90V vs. CPM M4, etc. Still in the range of xhp, elmax,3v? CPM-M4 knives are available anywhere from 60 to 64+ Rc which would obviously affect its position on the chart. Sadly I can’t get a pm2 in m390 for a decent price. ARCHIVED; Posted: 3/19/2010 9:51:54 AM EST What is the real world difference between these steels, and which is the "overall" best for EDC tasks? ... CPM-M4. CPM M4 will even out wear M42 in applications where red hardness is not the controlling property. M390 vs M4. But not quite up to super steel status m390, s90v, s110v, 4v, m4? Properties for the M4 are among the most-balanced around, faring very well for its toughness according to some user observations. So in your opinion. CPM M4. Advantages: Relative toughness, wear resistance. Disadvantages: Relatively more difficult to sharpen than CPM 3V and predecessor tool steels like A2, not as tough as CPM 3V or CPM 4V. In applications where it has been traditionally necessary to use a high cobalt material for red hardness, e.g. N680. CPM Rex M4 HC Powder Metal High Speed Steel. And some types of tests may favor hardness more than others if the edge is deforming in the test. S90V is the king of edge holding, though, so despite the fact its time consuming and frustrating to get that perfect edge, once you do, it’ll hang around for a while. CPM Rex M4 HC high-speed steel is an extremely versatile high speed steel that provides a unique combination of high wear resistance with high impact toughness and transverse bend strength.

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