It has absolutely fantastic edge retention and good corrosion resistance, as well as a good toughness as well. As these steels vary on almost molecular levels, your average knife user will not be able to tell much difference between them, honestly. The 10xx 1045, 1095 steels 1095 is the most common 10xx steel or high carbon steel used for knife blades. Hey, at 20% chromium, its also really good at corrosion resistance. Toughness this steel has outstanding toughness, so you can expect it to survive abuse in the field and in survival scenarios. While cpm s30v wont have the extreme edge retention that cpm s110v does it will be somewhat easier to sharpen for most than cpm s110v. Aebl has edge retention similar to 52100, which is significantly lower than higher carbide content stainless steels like 440c, cpm154, s30v, etc. Even the 2gb gtx 960 isnt hurt that much vs its amd competition that has 34gb of vram in its price range. The company diamondblade knives produces knives with friction stir processed fsp edges 1. Cpm154 and vg10 can take very fine, polished edges, while s30v and s35vn work best with coarser edges for utility use or high polish edges for kitchen use. It has an excellent blend of strength, toughness, edgeholding, corrosionresistance, and sharpenability. After the loss in the edge retention battle we go in again. By the way, ive made hundreds of knives in ats34, and its my main counterterrorism knife material.
Featuring superior toughness, excellent hardness and great wear resistance, s30v steel has high amounts of carbon and vanadium to provide superior edgeholding and abrasion resistance. M390 vs 20cv vs 204p 3rd generation powder metallurgy. Blow for blow, chop for chop 3v is, objectively, better than 1095. It is an improved steel over s30v which had earned a reputation as being chippy on a thin edge. In my experience, it takes a keener edge, holds it much longer, and is not markedly more difficult to sharpen. With a special appearance by the king of toughness in the folding knife world. Originally designed for jet engine fan blades, it is the precursor to the japanese made ats34. M390 has similar corrosion resistance, and falls between s30v and s90v for edge holding and ease of sharpening in my experience.
The pm process combined with the high chromium content imparts m390 cpm 20cv with good grindability and excellent polishability. Bohler m390, cts204p, and cpm20cv are all essentially the same steel and sport a near identical composition. Mar 20, 20 i would say the most popular and highest performing stainless steels on the market today are 440c, cpms30v, 154cm, 12c27, aus8. The comparison is made with the hardness of all of the grades at rc 5860. This is the principle reason to select cpm 3v for a knife. Since no one steel is the best in every category, perhaps versatility has something to do with what makes a certain steel best. As the rule always say you cant have hardness, corrosion resistance and toughness in one steel, our s30v offers high hardness and corrosion resistance, therefore it toughness isnt at the same level, but it doesnt mean its bad, it has a decent toughness. This would be a user, so toughness would be a plus. Benchmade knives has led the way in the design and marketing of well made and easy to use products and all benchmade knife models can be easily and quickly opened and closed with one hand. Widely considered to be one of the best high end steels on production knives, s30v is an all around performer with great corrosion resistance, toughness, a fine grain structure and great edge holding capabilities. With both a high hardness and a high toughness, it is ideally suited for hard use tasks. S30v holds an edge slightly better than 154cm, while 154cm is slightly easier to sharpen than s30v. Its often used in limited edition runs because its so good. Ok so browsing aliexpress i see some folders marked as either m390 or s35vn.
M390 and the american version, cts204p is pretty much the best stainless steel in terms of edge retention, and also has good corrosion resistance and very good toughness considering how high the hardness is. See more ideas about benchmade knives, folding knives and blade. M390 exhibits excellent edge retention, corrosion resistance, and high level toughness. Aug 08, 2018 in the comparison on cts 204p vs m390 steel that m390 is first and foremost an awesome edge retention steel. So even if you buy from a reputable seller, how on earth can you ever know that you really got the advertised steel. Not necessarily tied with toughness, as a filleting knife needs to have high ductility without needing to be tough. S30v developed primarily for the cutlery industry by crucible steel, s30v contains noticeably higher amounts of carbon and vanadium than does bg42. I understand tool steels will generally be tougher i know 154cm isnt tool steel, and that toughness depends on blade shape, edge geometry, heat treat, cutting methods, materials being cut, hrc, etc. Normal variations in chemistry, size and heat treat condi tions may cause deviations from these values. Cpm s30v, cpm 154, 440c, 420hc, m390, cpm s35vn, d2 and cpm s90v. Composition comparison graph for the knife steels crucible. Uddelholm m390, cpm m4, cpm s110v were easily better than the 440c steel that you tend to use, but realized how crucial the heat treating step was. Dude i dont know what m390 you sharpened but i did my 710 with m390 and it was not problem with shapton glass stones at all.
Sep 19, 2016 this family includes in order of bestjudged ascending quality and price s30v, s35vn, m4, 20cv, and s90v. In 2009, crucible steel introduced an update to cpms30v to meet the needs of renowned knife maker chris reeve that they called cpms35vn. However, s30v is still considered to be a superior choice for knife making. Cpm s35vn is a martensitic stainless steel designed to offer improved toughness over cpm s30v. Unless ofcourse you can send the blade to get tested. Know your knife steels 7th aug 2015 the products in the knivesshipfree inventory represent dozens of different steels stainless steels and carbon steels, tool steels and super steels and we know that can be a bit overwhelming when all youre trying to do is choose a knife. Only took me about 24 mins to 35 mins to do the whole thing from scratch. Pricing and availability on millions of electronic components from digikey electronics. I know m390 beats out s30v in terms of edge retention by a wide margin, but i havent been able to see a comparison with toughness. You wont see much wear at all from the thing even through some pretty rough use. Steels such as alloy m390, elmax and cpm420v achieve an impact energy between 30 and 45 jcm2 over the full tempering range.
Steel in the range 10451095 are used for knife blades, although 1050 is more commonly seen in swords. I like s30v, but find steels like the m390i dont even need a knife like that. Both 154cm and s30v are fine working steels in my book, so i would not favor either knife simply for the blade steel chosen, although it would be fair to argue s30v is the superior steel. My all time favored is my good old pocket slipjoint folder in 1095tried, and true. They do use premium steels from m390 and s35vn and big knife stores like bladehq and knifecenter are starting to sell some of their models. M390 cpm 20cv is a pm stainless steel that offers good wear resistance with excellent corrosion resistance through the use of high chromium and vanadium content. Thats a pretty low price for a big upgrade in steel.
Bohler m390 is widely revered as being the best allaround knife steel, which has led top companies to widely utilize it in higher end knives. All of these so called hightech super steelsi mean give me a break its a knife for gods sake. Some people will say that s110v, s35vn, m390, or zdp189 are better, but as an allaround, everydayuse steel i say its tough to beat s30v. This is a comparison chart that compares the toughness, wear resistance and corrosion resistance of 8 grades of steel suitable for knifemaking. The tradeoff is that those steels have much lower toughness than aebl and nitrov, of course. Dollar for dollar, this is generally regarded as one of the finest knife blade steels with the optimal balance of edge retention, hardness and toughness. It was 15 minutes before closing time, i ran it on a store owned machine, and i couldnt recall the exact settings. M390 d2 n690co k110 9cr18mov 9cr15mov s35vn aus8 g10 frn polymer tpr tpe cordura micarta kydex leather n690co depending on heat treatment it may have equal or better wear resistance and toughness. Guide to the best knife steel in choosing the best pocket knife you should pay particular attention to the type of steel used in the blade. Mouse over element names to get quick help on its effects in the alloy. In recent years, this steel has made a resurgence in the knife industry, offering good blade toughness, edge holding capability and corrosion resistance. S90v has similar wear resistance to m390, but much higher toughness. Continuous cooling diagram for cpm s110v, austenitized at. Cpm s30v, on the lower end of the sxxv steels, it has a carbon content of 1.
It also has some pretty respectable toughness, and can take a good hard beating. Yeah it was a bit resistant to wear, but i found it no harder than s30v. The m390 sprint looks to have been ideal, but sounds like s35vn still would be easier to sharpen. Paramilitary 2, although its damn close in my book. Additionally, tests conducted by latrobe have shown that this steel is 35% better at edge retention than s30v, which is saying a lot about the performance capability of duratech. In that case the toughness was essentially identical, the small difference is probably just due to experimental variability. In choosing the best pocket knife you should pay particular attention to the type of steel used in the blade. They use conventional d2 tool steel and process the edge so that it has hardness of around 6569 rc and a spine at 3842 rc. Additionally, tests conducted by latrobe have shown that this steel is 35% better at edge retention than s30v, which is saying a lot about the performance capability of duratech 20cv.
Perhaps the cpm cruwear sprint run was even stronger but, anyway, i got zero concern with ghost which was able to. Diamondblade knives is a subcompany of knives of alaska. I realize that 24 gb has likely turned off quite a few mac aficionados, but. This increase in carbon and vanadium provides superior edgeholding and abrasion resistance. In no particular order these stainless steels offer superior stain fighting powers and will hold an edge if properly maintained. Note s30v now has a slightly better looking brother in s35vn which is distinctly similar but easier for manufacturers to work with thanks to niobium. M390and the american version, cts204p is pretty much the best stainless steel in terms of edge retention, and also has good corrosion resistance and very good toughness considering how high the hardness is. Continuous cooling diagram for cpm s110v, austenitized at 2150 f 1175 c crucible industries llc. S30v steel also offers users great corrosion resistance and improved ductility. Mouse over multi alloy graph bars to see exact values.
Imho, m390 is a true super steel whilst s30v is simply a very good steel. I would love to hear peoples experience with the steel m390 as anecdotal information is always a pleasure to read. It is a good balance between toughness and edge holding. Nitrov its properties and how to heat treat it knife. Composition comparison graph for the knife steels crucible cpm s30v, bohleruddeholm m390 version 4.
Oct, 2015 it was 15 minutes before closing time, i ran it on a store owned machine, and i couldnt recall the exact settings. I ran it on a m390 the more inexpensively priced, 24 gb ssd version. Comparing my bark river bravo 1 lt in 3v to a 1095 blade, the difference, over a large sample size, is clear even to someone like me a relative fixed blade newb. It will take a little work to sharpen and loses its initial razor sharpness fairly easily but it holds a great working. Mar 30, 2020 for transverse specimens that were heat treated with a 1975f austenitize, plate quench, cryo, and 400f temper, the 4v had significantly better toughness 12 vs 9 ftlbs, though at slightly lower hardness, and the toughness was only slightly less than the longitudinal vanadis 4 extra ftlbs. In terms of toughness compared to other stainless steels like elmax, s35nv or xhp it is inferior. In terms of toughness compared to other stainless steels like elmax, s35nv or. Knife steel nerds metallurgy and testing of knives and steel. The best benchmade knives are available here as well as the best prices on hundreds of benchmade knives including modern high tech combat and pocket knives. I am told it is as tougher than s30v, but i have not broken nor chipped either steel so cannot say for sure. In the comparison on cts 204p vs m390 steel that m390 is first and foremost an awesome edge retention steel. The first unified crossplatform 3d graphics benchmark database for comparing android, ios, windows 8, windows phone 8 and windows rt capable devices based on graphics processing power. That could just be something we are doing wrong but this is just based on my experiences and sharpening level.
Which pm2 s30vs35vn or s110v or m390 spyderco forums. C36s pointy blades, first made of s60v known as cpm440v and then of s30v, are known to be relatively fragile but cpm m4 brings much more toughness to the whole design. S35vn has more wear resistance than cpm154 but less than s90v. Properties shown throughout this data sheet are typical values. In 2009, crucible steel introduced an update to cpm s30v to meet the needs of renowned knife maker chris reeve that they called cpms35vn. General knife discussion discussion in general knife discussion started by shreddybear, mar 17, 2016. Midrange and highend stainless steels are also abundant. Edge retentionwear resistance cpm 3v steel does not hold its edge as well as some other steels like s35vn or s30v.
Jan 29, 2009 when compared to other stainless blade steels, such as 440c, ats34 and 154cm where the vanadium component is absent, duratech 20cv offers far superior edge retention. When you learn that the knife is quite popular among the marine corps, then you know it is going to be the best. I like it slightly better than the steels above, because it sharpens easier. So we have covered what puts the stainless in stainless steel. So, with tongue planted firmly in cheek, i decided to engage in an exhaustive, highly accurate, irrefutably scientific survey by asking some guys we know who just happen to be world class knifemakers the following question.
With a chemical composition to prove it, s30v is a premium, highperforming steel. Sep 29, 2012 dude i dont know what m390 you sharpened but i did my 710 with m390 and it was not problem with shapton glass stones at all. I would say the most popular and highest performing stainless steels on the market today are 440c, cpms30v, 154cm, 12c27, aus8. This knife boasts of having the best design that allows for the users to find more work for it. They used to be available from aliexpress but i think they know that to be taken seriously by knife collectorsusers, selling their knives from aliexpress might be diluting the brand name. May 10, 2017 since no one steel is the best in every category, perhaps versatility has something to do with what makes a certain steel best.
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