The only steel which isn’t a low-chromium vanadium-alloyed powder metallurgy steel is 8670 which has very high toughness but relatively poor edge retention. BladeForums has ZERO TOLERANCE for extremism or calls of violence. What is its chemical composition? Corrosion Resistance: The CPM M4 corrosion resistance isn’t the best as the edge retention; with 4% of chromium, it offers decent corrosion resistance. It is non-stainless steel. For being a fairly large and heavy duty knife it is very light. M-4 is a super high-speed steel having a very high carbon and vanadium content for exceptional abrasion resistance. And the second reason is the overall shape and design. How hard is it? a high-end or Premium tool steel high in Molybdenum and Vanadium, which give the steel a great combination of toughness and wear resistance, I loved the new modification brought on the old Super Free, especially the design, okay let’s talk knife! The steel is made by the Crucible Particle Metallurgy (CPM) process. If you find trouble understanding the terms “Rockwell hardness” Or “HRC”, Read this blog post. S35vn has been being put into high end folders ($300-700) Chris Reeves, Sparta blades ect…, and I don’t understand the reasoning, When m390/20cv/204p seems to be a superior steel to it overall. Therefore it’s a premium steel knife, but it’s not the best for corrosion resistance, so I highly recommend you to take care of your CPM M4, if you intend to own one, don’t get fooled by the “Premium” steel, and forget to take care of it, and If you’re working in humid or wet environment, I won’t recommend the CPM M4, yes it’s a good steel, but they’re better steels for your usage, the M390 for example, It has great edge retention and corrosion resistance and exception hardness, just what you need if you’re a hunter or fisherman, or you can use the H1 steel or Lc200N they’re both great for corrosion resistance (if your concern is corrosion resistance). The knife is exceptionally thin, is surprisingly ergonomic, it’s well-positioned in hand, the lock-up is rock solid, and the opener flipping system is very smooth, in all it’s a great knife for EDC, it can be used for outdoor activities, but I wouldn’t recommend it in a wet environment. The handle has good grip, but is a little rough. Common Usage. i very much enjoy using my PM2 in M4 steel. BENCHMADE 560BK-1 FREEK CPM-M4 BLADE STEEL PLAIN EDGE FOLDING KNIFE. The reverse tanto is an interesting shape. What is its hardness? It has all the details you need to know. It is well suited for premium-cutting tools of all types, and particularly those used for machining abrasive alloys, castings and heat-treated materials. He said that though steels are an oft-discussed topic online, he very seldom has customers request a steel type or brand, which could be seen as a testament that his choice of CPM-154 is a good one. Find out how you can achieve more! Form and function in the same package. Better than the Spyderco m4 which is only about 62hrc. Not any steel the premium ones, I m sure you already heard about the famous CPM M4 Steel, well I wanted to know more about it, and I did some researches. According to It chemical composition and hardness, the CPM M4 offers the following properties: Edge Retention: with a hardness of 65HRC, the CPM M4 offers an exceptionally Edge retention, one of the best in tool steels even in carbon steels. eval(ez_write_tag([[300,250],'knifeuser_com-large-mobile-banner-2','ezslot_5',111,'0','0']));Of course, it is, If you’re looking for a balance between hardness, toughness, wear resistance and corrosion resistance, the CPM M4 steel would be a great choice for your knife, the rule of all steels is the “Hardness, Toughness, Corrosion Resistance, You only get two of the three,” well magically the CPM M4 offers the three in a balanced way, Even if the corrosion resistance isn’t excellent as the hardness/toughness, but still it’s good enough compared to other steels. The blade is covered in a light gray Cerakote for added durability and looks. What it is: CPM M4 is a "Crucible Particle Metallurgy" carbon tool steel, widely regarded as a "super steel" for its properties and performance. Since its introduction it has been extremely popular and quickly rose to flagship status. CPM M4. https://www.bladeforums.com/threads/bladeforums-has-a-zero-tolerance-policy-towards-threats-of-violence-extremism-be-warned.1769537/, (You must log in or sign up to reply here. Therefore it’s a tool steel. CPM M4 provides superbly balances levels of abrasion resistance and toughness through high doses of molybdenum (hence the “M”), vanadium and tungsten together with … Toughness. Its high content of Molybdenum and Tungsten gives it a fine grain size, greater strength, hardness and toughness. Another great knife from Spyderco, it has a 3.5″ plain edge drop point blade, with a full flat grind and of course built with the CPM M4, which makes it a very tough knife with a great hardness, so it can hold an edge for long, but it’s not easy to sharpen (which is not a big deal honestly), on top of this the knife has a titanium handle. Mainly used in custom knives, however several makers including Benchmade and Spyderco made limited runs of their knives out of Crucible CPM M4. ). It has 3.6″ drop point blade, a great grip on the handle with a blade guard in the top, and of course, the handle is a G-10. As you can see, the combination of the CPM M4 Steel includes Chromium, Molybdenum, and Vanadium, which gives it a mix of toughness, wear-resistance, and corrosion resistance. $279.00. Subscribe to our newsletter to get a free guide on ”your subject”. The mixture of a CPM M4 with a G10 only means one thing: High-Quality Knife!, let’s jump to the locking mechanism, an AXIS Locking mechanism; the blade will open and close as smooth as possible, and finally a reversible pocket clip, in all it’s a great EDC knife, Benchmade did a great job in this one. 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. Disadvantages: Relatively more difficult to sharpen than CPM 3V and predecessor tool steels like A2, not as tough as CPM 3V or CPM 4V. Especially for folding knives. 7.92. Like all CPM steels, CPM M4 is created using Crucible’s patented Crucible Particle Metallurgy process, which provides an extremely homogeneous, stable and grindable product compared to the traditional processes. Its CPM M4 tool steel -- widely regarded as a "super steel" for its properties and performance -- means that it'll hold an edge longer than similar knives in other steels. So if you’re reading this, this means you want to know more about the CPM M4 Steel, well luckily I did put all my hours of research in this blog post, and I tried to answer some questions (What is it? Toughness: This is why the CPM M4 is considered high-end steel, it offers a great toughness while being hard steel, the rule is simple: the harder the steel, the lower it’s toughness, but it’s not the case for the CPM M4, it’s combination has higher hardness and toughness in exchange of corrosion resistance. cpm m4 Automatic Knife Ordering Agreement IN COMPLIANCE WITH FEDERAL STATUTES , KnifeCenter, Inc requests that you read carefully the requirements set forth below, and agree to this prior to your purchase or receipt of any automatic opening knife from our company. The gray and black layered G10 is milled to provide excellent grip and style, while the red G10 base layer and anodized aluminum barrel spacers bring an additional pop of color to the handles. Please see this thread here in Tech Support: I am looking at a benchmade stryker in M4. Wear Resistance: being high in Vanadium and Molybdenum, the CPM M4 has excellent wear resistance. Based on experience and testing, M4 steel may outperform blade steels such as M390 and S90V in terms of edge retention and M4 is in a completely different league in terms of toughness. Very popular as competition cutting steel of choice. CPM 4V is a powder metal tool steel with an outstanding combination of properties including high impact toughness and very good wear resistance. We request your assistance dealing with this as we do not want to see the site shut down due to violent threats. CPM M4 is a high vanadium special purpose high-speed steel exhibiting better wear resistance and toughness than M2 or M3 in cold work punches, die inserts and cutting applications, but these reasons are why it is widely used in competition cutting blades. CPM is an American based company that manufactures a variety of metals for commercial use. In fact, CPM M4 exhibits the best toughness properties of any high speed steel we currently produce, conventional or CPM. Crucible's CPM melting process makes steel more uniform down to the microscopic level for very stable, tough steel that is resistant to cracking or breaking. Broaches, End Mills, Punches, Hobs, Fine Blanking, and Forming Dies. The design has the edge of the blade co-linear with the bottom of the scales which makes it very nice ergonimically for cutting. 0.286 lb/in 3 (7806 kg/m 3) Specific Gravity. The milling and jimping make it look mean. Sharpness: The harder the steel, the harder to sharpen it, this rule applies to all steels, if steel offers an excellent wear resistance then it will be hard to sharpen. CPM s90v Corrosion Resistance: Great Corrosion Resistance due to 14% of Chromium, which makes s90v stainless steel (Once steel has more than 10-12% of chromium in it it’s considered stainless steel). Griggs Steel Color Code: Yellow. The Benchmade Freek Black features a 3.6" CPM-M4 high-strength steel drop point blade with a black coated finish and a blade thickness of .11". The M4 steel holds and edge like no other and is easy to strop back to hair splitting sharpness. Martensitic is a specific type of stainless steel alloy. 40-45% of a 1% carbon steel. He added that CPM-154 is not quite as abrasion resistant as other of the relatively newer steels, so obtaining a fine finish is a bit quicker. Review: M390 was created by Bohler-Uddeholm and is a powder metallurgy tool steel similar to the CPM style steels. CPM-M4 super steel! Free shipping. I bought the Contego for a few reasons. ... CPM-M4 Material In Stock It is quite sturdy blade, especially given the properties of the CPM M4 steel, which is pretty tough steel too. The answer is No, it’s not stainless steel, to be considered stainless steel the CPM M4 must have a minimum of 12% of chromium in it. 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. M4 is an extremely versatile high-speed steel with its extremely high carbon and vanadium contents for exceptional abrasion-resistance. Density. But not quite up to super steel status m390, s90v, s110v, 4v, m4? Benchmade m4 at 62-64hrc is probably the best mass production m4. The CPM-M4 holds an edge remarkable well and is highly regarded for corrosion resistance. 31 x 10 6 psi (214 GPa) Machinability. Is it good and many others), enjoy the read. It is well suited for premium cutting tools of all types, particularly those used for machining abrasive alloys, castings and heat-treated materials. Stainless-steel bolsters add weight and heft to let you know you have a great cutting tool in your hand. We are talking about steel today! CPM REX M4 HC(HS) is a high vanadium special purpose high speed steel exhibiting better wear resistance and toughness than M2 or M3 in cold work punches, die inserts and cutting applications involving high speed and light cuts. Other Known Names: CPM REX M4 ®, ASP 2004, S690. Was: $239.65. M390 and M4 have both same edge retention and toughness, the difference is M390 is better in corrosion resistance and a bit easy to sharpen compared to the M4. S30V offers better corrosion resistance and lower edge retention compared to the M4. Modulus Of Elasticity. Get Up To 95% Off Today! The first variant in the Freek family brings together two incredibly durable materials, G10 and CPM-M4 steel. The 2019 Super Freek takes the CPM M4 steel to another level. A large volume of vanadium carbides provides the high wear resistance. According to @Crucible, the hardness of the CPM M4 steel is 65.5 HRC, Check the Data Sheet for more Infos. We don’t have any toughness testing of 4V in the 61-62 Rc range so I think the toughness could be a bit higher than what is shown here. Thanks. Shop thousands of quality pocket knives from all the top knife brands including Benchmade, Spyderco, CRKT Cold Steel and more! It's a manual opener with ambidextrous thumb studs. Advantages: Relative toughness, wear resistance. Considering that I have cut steel and copper wiring and other metals with 64HRC M2 steel, this M4 knife should do even better than that. Discussion in 'General Knife Discussion' started by wheelgunrambo, Sep 11, 2017. The only Benchmade M4 that I have is in my Gayle Bradley One. The balance point is … Free shipping on many items | Browse your favorite brands ... Spyderco Manix 2 Jade G-10 CPM-M4 Steel Knife C101GM4P2 Exclusive NEW. It can be considered carbon steel since it has high carbon (more than 1% of carbon in the chemical composition). I have never owned an M4 before and was wondering if I could get some feedback about the steel in general and benchmade's version of M4? The CPM M4 offers great qualities for a knife, in exception of corrosion resistance, it has great edge retention, hardness, and wear resistance. The finished S35VN steel is made of 1.4% carbon, 14% chromium, 3% vanadium, 2% molybdenum and 0.5% niobium. CPM M4 is a high-speed, wear resistant, tool steel. The first being the steel. It’s a high-end or Premium tool steel high in Molybdenum and Vanadium, which give the steel a great combination of toughness and wear resistance, It’s very popular steel in the knife industry, it’s commonly used in custom knives. Over the years there have been a vast number of variations and sprint runs using various steels and handle materials.Steels have run the gamut from ATS-34 back in the 1990’s to CPM S30V in the early 2000’s and now the cov… $215.68. 3V offers better corrosion resistance and lower edge retention compared to the M4. Machinability: With the increased Sulfur (0.06%) it offers good machinability, with no effects on the toughness. Hey guys! Combined with its excellent wear resistant properties and good grindability (comparable to conventional M2) CPM M4 represents the best high performance “general purpose” high speed steel on the market today. Higher toughness at the same hardness compared to AISI M2 tool steel. In operation since 1998, BladeForums.com has led the industry since Day 1. Don’t complain about it rusting: Except for the much more expensive Maxamet steel (which also rusts), M4 holds an better edge than any other steel on the market, and the tradeoff is that it is not stainless. and thats not to say that spyderco's m4 is bad. Okay now lets talk design and opening system, first off this was designed by Gayle Bradley (if you don’t know him, he designed many of awesome Spyderco knives), okay let’s go back to our Advocate. CPM-S30V has become one of the most used premium steels on the market among knife manufacturers. Crucible Industries has a real gem on their hands with CPM-M4… At the cost of some corrosion resistance you get amazing edge holding, toughness, and decent enough sharpenability. benchmade m4 with tormek edge Cedric & Ada Gear and Outdoors This knife is a real handful for its size. Checkout Deals of the Day on Amazon. What is the hardness of CPM M4 Tool steel? What are the CPM M4 tool steel properties, Esee Izula 2 Vs Esee 3 – A Full Comparison Of Esee 3 Vs Izula 2, ESEE 6 VS BK7 – full comparison of Bk7 Vs ESEE 6, Gerber Prodigy vs Strongarm – Full comparison of STRONGARM VS PRODIGY. Get a free guide on Knife Sharpening to find out how you can achieve more. This AXIS lock has layered gray and black G-10 handles with a red G-10 liner, a stainless steel tip-up pocket clip, and a lanyard hole.