Exhibiting very good edge retention, corrosion resistance, and sharpenability, S30V is utilized by a variety of makers for its performance and balance. Chris Reeve is famous for developing two steels directly with Crucible Industries, and boy did this partnership result in an awesome product. What it is: CPM M4 is a "Crucible Particle Metallurgy" carbon tool steel, widely regarded as a "super steel" for its properties and performance. It will serve you well for years to come. http://www.bladehq.com/item--Spyderco-M4-Paramilitary-2-Knife--29810. Both m4 and 20cv are superior in the edge retention department compared to 154cm and s30v. I'll throw up a picture of my tiny collection soon. About Us; The Corporate Commitment; HII Philosophy of Coaching; Meet the Founder I say get it. I believe that Nitro-V and AEB-L are both available up to 1/4″ so unless all of that is sold out thickness shouldn’t need to be a deciding factor. All things pocket knives. M4 is not stainless, but it is tougher than the rest. 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. harder steels usually chip more than softer ones but in this case the carbide composition in m4 allow for the same if not better edge stability than s30v. And some types of tests may favor hardness more than others if the edge is deforming in the test. M4 is awesome. New comments cannot be posted and votes cannot be cast. M4 in every performance metric except corrosion resistance and resharpening ease. M390 vs S110V (CPM S110V) M390 S110V; EDGE RETENTION: 8/10: 8/10: EASE OF SHARPNESS: 5/10: 5/10: CORROSION RESISTANCE: 8/10: 7/10: TOUGHNESS: 6/10: 2/10: The S110V comes in the same level with the M390 in edge retention ease of … I want to remind that this blog post is made based on hours of research … That and having to keep it oiled, and more likely than not the thumb ramp and opening hole turning black (see: used Gayle Bradleys) there isn't too much more to worry about. If I carry a D2 or 1095 blade in my sweaty pocket during the humid new england summer, it will rust in like a day, and the corrosion will be more pronounced where my hand touches the blade. The handle would look cool and different, but I've never owned anything more exotic than VG-10 and so the M4 scares me. Advantages: Relative toughness, wear resistance. As far as the S30V goes...I actually really like it. Maybe it's a good batch and it's good indeed! At least on a Spyderco, it's been a little more sharpening friendly for me than some of the other premium steels I've worked with, but still with great retention. M4 is a tremendous steel and I can't imagine it not meeting my needs, but how does it compare to s90v? In this section, we’re going to compare our steel with other steels, and for this, I use four criteria; Edge Retention, Corrosion resistance, Ease of Sharpness, and Toughness, and I use a scale or note from 1 to 10. The Benchmade M4 Bailout features a 3.38” CPM-M4 tanto blade with a Tungsten Grey Cerakote finish. The large difference is that M4 has a ton of tungsten and molybdenum so it's harder and tougher than S30V at the expense of corrosion resistance. The HRC on this bad boy is between 62-64 … An alternative to r/knives. If you need corrosion resistance, go with s110v or even s30v. I really like it. Compare grades using mechanical properties including abrasion resistance, toughness, size stability, machinability and … U S M C R E T I R E D [SIGPIC][/SIGPIC] Top. Martensitic is a specific type of stainless steel alloy. It actually depends a lot on the person.  Originally developed by both Chris Reeve (a world renowned knife maker) and Dick Barber of Crucible Industries, S30V is a martensitic powder-made stainless steel. Press J to jump to the feed. CPM-M4 knives are available anywhere from 60 to 64+ Rc which would obviously affect its position on the chart. That’s what makes the s110v or even s30v really tempting. It really depends on if you're willing to wait or not.
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