This steel is particularly well suited to applications where strength and impact resistance are valued above all other considerations and will produce blades of nearly legendary toughness.”. I’m not trying to sell knives or create clickbait. Most of the time, that question is answered with “everything.”. Plagiarized all the way down to misspelling lath. A proprietary steel and heat treat developed by Busse Knives, INFI is an excellent performer and one of the best steels for big choppers on the market. So I don’t know if the number is supposed to be based on maximum achievable hardness or typical hardness in production knives. *while using a broken knife blade to lever open a tin* hmm, debatable , I Like your articles, what a novel idea using data and Except for “initial sharpness” which is not a steel property. The European Powder Metallurgy Association, 2004. I had to read that second sentence a couple times before I figured out what he was saying but I have to disagree. In terms of toughness the carbide replacement high speed steels are relatively low. Maxamet steel version of the Manix 2 with gray FRCP handle. This is because dancing on the limit of a property means that relatively tight control is necessary, or you are in danger of under- or over-shooting any of the given elements thereby missing the desired properties. He doesn’t list the effect of different elements (yay!) The high toughness steels 5160, 15N20, L6, and 8670 barely have any carbide at all: 5160 (1525°F) [12] Harvey, Richard F., and Charles W. Schuck. It is true that a steel like 420 does have a limited maximum hardness but for most of the others it is a matter of choice. [25] Maili, I., R. Rabitsch, W. Liebfahrt, H. Makovec, and E. Putzgruber. cobalt is not just very expensive , it is also known for its carcinogenic effect in presence of tungsten & all cobalt alloyed steels contain tungsten ! It does have grains, yes, but it does not have a sandy or grainy appearance. The toughness of M42 was also pretty good, comparable with other high speed steels when at the same hardness, and does not drop dramatically in the 68+ hardness range. Both elements are used to increase hardness and toughness. However, they provide specialized use cases for those that prefer maximum edge retention at the detriment of other properties. I narrowed down the list to 5 articles that I will be commenting on. I’ve looked for information about this and can’t find anything. For a large knife like that grinding a high wear resistance steel like T15 can be challenging. ... On the business end, a variety of premium stainless steel blades provide low-friction edge geometry, extreme toughness, and exceptional edge retention. [8] Gill, James P. “Ferrous alloy.” U.S. Patent No. Many of the descriptions of the steel types are questionable as well, such as, “D2 – An American made, but less expensive version of CPM S30V.”. It’s possible. I have been enjoying your website for a couple months now (since the KnifeNews article), and I appreciate the depth and detail in your articles. Everything is exactly as you’d expect from this model, with the addition of a maxamet blade, which has surprised me in its toughness and edge retention I think you have encountered “Fake Science”. 7 product ratings - Spyderco Manix 2 Ball Bearing Lock Knife Gray FRCP Maxamet Steel C101PGY2. But before we get to what exactly these steels are and how they work, it makes sense to look at what led to their development first. [4] German patent No. And defining ductility as “ability to flex or bend without fracturing” is misleading. However, knifemakers and knife companies also wanted a more balanced stainless steel as the high wear resistance of S90V can make processing of the steel and sharpening for the end customer more difficult. He also defines toughness but does not rate toughness of any of the steels. here is an article where I took micrographs of 42 knife steels, https://www.bladehq.com/cat–Best-Knife-Steel-Guide–3368. “420HC is a somewhat less expensive American-made stainless alternative to 440C. I thought this statement looked familiar and indeed it does because I found the same thing written about 1055 in the Cold Steel-written portion of the KnifeCenter article above. He finishes out the article by describing Maxamet and CruWear but says that Maxamet is Carpenter’s answer to S110V. [3] Gornik, Christian, and Jochen Perko. 281,386, March 10, 1912. If you frequently use your knife to slice up cardboard, there may not be a better steel than CPM-S110V. I haven’t provided a link to his article because I don’t think anyone should read it. Silicon increases M6C and MC carbides and their size which is detrimental to toughness. So Maxamet with a value of 222 for 68 Rc has approximately 2.2x the edge retention of 440C at 59 Rc if both have the same edge geometry and sharpening. Must be the effective “3rd Generation Microclean” advertising. The full-flat-ground blade includes a fully accessible Trademark Round Hole™ for swift, ambidextrous, one-handed opening. Same old , same old ! However, he also says that, “Many people report that they are able to get knives using steels that contain vanadium such as CPM S30V sharper than they can non-Vanadium steels such as ATS-34.” I’m not sure I’ve heard anyone report that before, as the hard vanadium carbides typically make sharpening more difficult. Crucible researchers used … Even where I criticize the articles that does not necessarily mean that I think the author is clueless, or that none of the articles are worth reading, or that they don’t regularly call their mothers like good boys should. “New Powder Metal Alloy Bridges Gap Between High Speed Steel and Tungsten Carbide.” Carpenter Technology Articles, dated May (2001). In defining wear resistance he says that “the amount, type and, distribution of carbides within the steel are what determines its wear resistance,” which I point out because it is a true statement that I found. Maxamet is a complex steel alloy with excellent edge retention and toughness (non-stainless). The poor grindability and polishability of these steels can make sharpening difficult as well. Grinding and finishing is also difficult, even in the annealed condition because of the high vanadium content. Your email address will not be published. But actually, it is not. Blade material: Maxamet (non-stainless) Blade length: 3.375” Handle material: FRCP Overall length: 8.00” Lock type: Ball bea Sellers with highest buyer ratings; Returns, money back; Ships in a business day with tracking; Learn More Top Rated Plus.
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