I have also shown a dotted line to indicate the approximate effect of hardness on toughness to more easily compare between steels. [1] These vanadium carbides give the steel a very refined grain, further improving the sharpness and toughness. S30V lands directly in the Martensitic camp. I have heard that it chips pretty easy. Like any steel though, not all S30V or S35V steels are equal. Corrosion Resistance: Being a stainless Steel CPM S30V Offers a great Corrosion Resistance due to 14% of Chromium. What is its hardness? Sandvik 12C27™ is our main knife steel for hand-held knives, high-end ice skate blades and ice drills. What is the hardness (HRC) of Sandvik 12c27 steel According to @Sandvik, the Hardness of the Sandvik 12c27 steel is 56 (HRC). CPM M4 is a little different. Similar to 440A stainless steel, but with a formula that has added molybdenum and vanadium to improve hardness and wear resistance. The composition is tighter, the purity level is much higher and the fine carbide microstructure of today is far from how Sandvik 12C27™ knife steel of the sixties looked. I have a 610, 808, & 940 all in s30v..no issues and keeps a lasting edge. Subscribe to our newsletter to get a free guide on ”your subject”. eval(ez_write_tag([[300,250],'knifeuser_com-large-mobile-banner-2','ezslot_5',111,'0','0']));After we went through the details about the S30V Steel, we finally arrived at our famous question, Is S30V good knife steel, I guess by now the answer is obvious “YES”, the steel offers high hardness, high wear resistance, high corrosion resistance, and a decent toughness, it’s considered a high-end Steel, and many users consider as a “SUPER STEEL”, And honestly I’m one of those users, in all it’s a very balanced steel knife. Some companies are just better at handling it than others, and Buck’s S30V heat treatment method goes a long way toward making their S30V and S35V steels some of the best out there. CORROSION RESISTANCE: 7/10. When the German geologist Friedrich Mohs devised the scale of hardness that we use today, he used a simple principle to determine the grade for each material: Which materials can scratch it, and which materials it can scratch. The presence of more than 12% of chromium makes the Sandvi 12c27 a stainless steel, with 0.6% of carbon, which is a bit higher compared to low-end steels. EDGE RETENTION: 7/10. S30V Knife Steel. What is its chemical composition? Continuous improvement over a period of 45 years has evolved it into the high performing steel grade it is today. If you wish to know more about “ Rockwell hardness ” or “ HRC ” read this blog post for more Infos. S30V is a knife steel produced by Crucible, released at the end of 2001 [1]. Despite some difficulties with a consistent heat-treat, knifema… This steel continues to be one of the best knife steels on the market for a wide range of knife uses and applications. However, it doesn't lag by much in those categories. Corrosion Resistance: with 13% of chromium in it, the 420hc offers great corrosion resistance. This is an excellent pick in S30V Knives, it’ another version of the famous Benchmade 940, but lighter with G-10 Handle instead of aluminium, okay why did I choose this knife to be in my list? The Rockwell hardness index (Rc) range to which each steel is usually tempered for use in blades is also noted. Around this same time period, Carpenter CTS-XHP and Uddeholm Elmax became more widely available for cutlery usage. What can you folks tell me? S90V. Large carbides in this all-around premium knife steel make it take and hold an edge extremely well; it is also very tough and wear resistant. If you wish to know more about “Rockwell hardness” or “HRC” read this blog post for more Infos. It is so expensive that it strongly affects the price of the knife, and is largely used in higher-end production and custom knives. minimum each temper. Exhibiting very good edge retention, corrosion resistance, and sharpenability, S30V is utilized by a variety of makers for its performance and balance. Edge stability is greater in lower carbide steels as long as the hardness is in the upper range. However, the high degree of hardness makes this steel difficult to sharpen. HRC: 59.5–61. CPM S30V is a martensitic (hardened) powder-made (sintered) wear and corrosion resistant stainless steel developed by Dick Barber of Crucible Industries in collaboration with knifemaker Chris Reeve. CPM S30V . The S30V Blur has a stonewashed finish for a roughed-up, non-reflective look. 1,914. [1][2] Its chemistry promotes the formation and even distribution of vanadium carbides, which are harder and more effective at cutting than chromium carbides. These vanadium carbides give the steel a very refined grain, further improving the sharpness and toughness. It maintains its corrosion resistance in temperatures up to 200° F. For technical drawings and 3-D models, click on a part number. [3] Despite some difficulties with a consistent heat-treat, knifemakers use CPM S30V because its composition makes it easier to grind than other powder steels although the carbides still wear down the grinder belts considerably. The two are different and I wouldn't favor one over the other based on edge retention alone. [citation needed]. CPM-S30V. Hardness. For example, S30V had increased Mo over the earlier S90V/S60V for improved corrosion resistance, and that trend continued thereafter with other Crucible products. Is it good or no ? S30V is also considered true stainless steel; D2 only has enough Chromium to be “semi-stainless.” Can d2 be oil quenched? I’ve found S35VN less chippy even at the same hardness. This blade is set up for hassle free sharpening, out of the box. The addition of 0.5% Niobium, and reductions in both Carbon from (1.45% to 1.40%) and Vanadium (from 4% to 3%) produced an alloy with 25% increase in measured Charpy V-notch toughness over S30V (Crucible claims 15-20% improvement). [6], In 2009, Crucible Steel introduced an update to CPM-S30V to meet the needs of renowned knife maker Chris Reeve that they called CPM-S35VN. S90V offers high edge retention with low toughness and the same corrosion resistance compared to S30V. Why S30V? 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. A high chromium content stainless (14 percent) that contains molybdenum and vanadium, which enhances the toughness, corrosion resistance, and edge holding ability. Hardness After Heat Treatment: Rockwell C60 With excellent strength and wear resistance, S30V stainless steel is a preferred material for knives and cutlery. [1] Barber received feedback from a number of other knife users and knifemakers such as Sal Glesser, Ernest Emerson, Tony Marfione, Phil Wilson, William Harsey Jr., Tom Mayo, Jerry Hossom, and Paul Bos in the development of CPM S30V. Wear Resistance: Maybe one of the best steels in wear resistance, being high in vanadium and Chromium, S30V is a great steel for wear resistance. I wrote about the history of 154CM S30V is, in many eyes, the ultimate EDC steel. In these kinds of applications the obvious benefit of quick honing of an S35VN blade with a strop or steel stick in lieu of needing to remove metal and reform the edge puts S35VN at an advantage over S30V. So, just close. The S30V Blur has a stonewashed finish for a roughed-up, non-reflective look. The famous PM2, a very known blade with a lot of fans ( I’m one of them), this knife is a just amazing, for me it’s a gem no matter which version/years it’ going to come out, and let me tell you why? The key to its increased performance was primarily due to the addition of vanadium to the mix. It’s a high-end Martensitic Stainless Steel high in Carbon, Molybdenum, and  Vanadium offers a great mix of high corrosion resistance, wear resistance and edge retention. The charts below aid visualization of the strengths and weaknesses of a particular knife steel. S60V (CPM T440V) / S90V (CPM T420V) High vanadium content allows these two steel grades to be outstanding at holding … Firestrike. Blade steel cost vs. knife price I thought it would be interesting to get an idea of the relative cost of S30V, S35VN and some other popular knife steels. Like all Blurs, the S30V Blur has a slightly recurved blade that’s ideal for multitasking, providing top slicing and piercing capabilities. SHARPENING EASE: 5/10 S90V has similar toughness to other PM stainless steels like S60V, S30V, and M390. Ward, C. (2008), "An Edge in the Kitchen", Harper Collins, p.33-34, http://www.simplytoolsteel.com/CPM-S30V-stainless-steel-data-sheet.html, http://www.newwestknifeworks.com/content/information/about-chef-knives/cpm-s35vn, http://www.simplytoolsteel.com/CPM-S35VN-stainless-steel-data-sheet.html, https://en.wikipedia.org/w/index.php?title=CPM_S30V_steel&oldid=1008806025, Articles with unsourced statements from August 2016, Creative Commons Attribution-ShareAlike License, This page was last edited on 25 February 2021, at 03:52.
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