[Last Edit: 9/25/2013 8:29:04 PM EST by bosundave], [Last Edit: 9/26/2013 9:03:12 AM EST by MS556], [Last Edit: 9/26/2013 11:56:38 AM EST by bosundave]. Go Melonite. When I visited with John Holliger "White Oak Armament" about Melonite he said that he had some that still had the salt bath still in the barrel. It is much harder to turn out an accurate chrome lined barrel than a Melonite barrel. ...believe in me, I'm with the High Command. Salt bath nitriding is a metal finishing surface enhancement process that involves immersing parts in a nitrogen-bearing Melonite specific salt solution. I have a CMMG "WASP" 16 inch M4 barrel in my Spikes Tactical M4 upper. Is one any more durable, or a better option, than the other? razorback2003 Member. Salt bath nitriding involves the Melonite QPQ process and provides a very uniform consistent nitride layer on your components. Faxon always uses the liquid salt bath Quench, Polish, Quench (QPQ) method. That's what I did no my build. I'll go with the superior hardness and the ultra crisp sharp edges in the rifling. Melonite, WASP or nitride treated. Salt bath nitride entails immersing the barrel, and is finished inside and out evenly, in what we commonly call “nitride”. Armoloy chromes barrels, but they can't do it on that small a diam. Melonite is harder and more corrosion resistant than chrome. Joined: Aug 24, 2008 Messages: 1,231. Characteristics: Highly uniform case; Good white/compound layer formation; Layer microhardness: 800-1300 HV; Layer thickness: 0.0005”-0.008” Low coefficient of friction: 0.1-0.2; Quick processing time I would like to add my 2 cents regarding chrome plating. I  completely agree with your more lengthy explanation. Melonite, salt Nitride M14. That was my main point. There are several different forms of melonite out there, example... "When trading bullets it is better to give than to receive", "If you're gonna be a bear, be a grizzly. These processes are categorized as molten salt bath ferritic nitrocarburizing. All Rights Reserved. I like the idea of shooting a few hundred rounds down the bore of a Chrome Moly(type of steel, not plated) barrel and THEN submitting it for an SBN. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Also known as Melonite, Salt Bath Nitride or simply Nitride, this is a heat treating process that creates a case hardened surface by diffusing nitrogen into the metal surface. The resulting surface is very smooth and extremely hard which makes it … Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. QPQ (Salt Bath Ferritic Nitrocarburizing 5898_BNA Melonite Rev 1_0 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Nitride VS Cerakote. I wanted to Melonite my Defiance Rebel action and my Krieger barrel. Other methods of ferric nitrocarburizing include gaseous process such as Nitrotec and ion (plasma) ones. I know melonite is just a brand name for a particular salt bath nitride process/ product, and it works by chemically changing the makeup of the surface, as opposed to micro slick, which is … Salt Bath Nitriding Xylan Coating Phosphate Conversion. Melonite ® - Salt Bath Nitriding. Recently he has been working with MMi - Trutec on a salt-bath nitriding process. During these processes, nitrogen, carbon, and small amounts of oxygen are diffused into the surface of the steel, creating an epsilon iron nitride layer (e - FexN). I have heard a lot of conflicting info regarding Salt Bath Nitride or Melonite. Perhaps I was too brief. Some of the companies do a better job on others cleaning them after the treatment. Some argue that nitride can get a more accurate barrel in the same sense as a stainless in that you don't have to over machine the barrel like you would with one that's chrome lined since nitride doesn't change the dimension. This process will impart a wear-resistant, corrosion-resistant diffused case that will improve the performance of your product, providing enhanced performance gains when compared to conventional phosphating or black oxide surface treatments. Any use of this content without express written consent is prohibited. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. This sort of thing is done by custom shops on request. I am not a competition shooter, i will just be using it at the range and up north in the woods to shoot and hunt with. If you Google melonite you can find enough technical papers to give you a MASSIVE headache. We're going to find out at what point this rifle will fail and take a look at what the barrel will look like when we get done with it. My only concern is that a Melonite barrel should be very very precisely cut using the sharpest possible carbide tools as to leave as little of tool marks as possible. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Here's how it's done: Does the company you use do .223 diam barrels? Has any one out there Melonited their barrels or actions. Thread Status: Not open for further replies. Salt bath ferritic nitrocarburizing The simplest form of this process is encompassed by the trademarked Melonite process, also known as Meli 1 . The resulting surface is extremely hard which makes it … It does not shrink or enlarge the bore at all. Thanks. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Providing consistent high quality products and services to our customers at competitive prices, while being in strict compliance with all environmental, safety and health regulations. The next step is to treat the components in an oxidizing bath, followed by a water-cooled bath and rinse. During these processes, nitrogen, carbon, and small amounts of oxygen are diffused into the surface of the steel, creating an epsilon iron nitride layer ( e – Fe x N). This is largely a result of how many manufacturers go about finishing their bore and chamber, as well as how the salt bath nitride process is executed. [SUP] [14] … Well, I did not miss that point in my post above. Copyright © 1996-2021 AR15.COM LLC. The one point that everyone missed it accuracy. I want to go with a 16" barrel with a gov't or M4 profile. [Last Edit: 9/27/2013 7:39:42 AM EST by bosundave], Rifles, Uppers, Lowers, Barrels, and more, [ARFCOM NEWS] What Really Happened With Braces + S&W Sues NJ AG + NYPD Proud To Seize Props, [ARCHIVED THREAD] - Melonite vs. Chrome lined Barrels. Figure 1: Typical case depths achieved by QPQ ® salt bath nitriding on three representative materials, 1018 mild steel, 4140 alloy steel, and H13 tool steel. Melonite™ and Melonite QPQ™ are thermochemical processes intended for the case hardening of iron based metals. Salt bath nitriding —also known as ferritic nitrocarburizing (FNC)— is one of the most popular ways to achieve these results, but it isn’t the only way. Above: Toolcraft BCG with Black Nitride finish. Discussion in 'Rifle Country' started by razorback2003, Aug 23, 2015. It is also known as Liquid/Salt Bath Ferritic Nitrocarburizing (FNC) process. Any use of this content without express written consent is prohibited. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. Salt Bath Nitriding/Nitrocarburizing is well known under various trade names, including ARCOR®, TENIFER®, TUFFTRIDE®, MELONITE®, and QPQ®. I even melonite my Chrome lined barrels just to get the beautiful lifetime finish on the exterior. The chemicals/salts utilized for the MELONITE are different than the ones utilized for Arcor - the former process predates the latter and both are registered trademarks of HEF Group. Ferritic nitrocarburizing or FNC, also known by the proprietary names Tenifer, Tufftride and Melonite as well as ARCOR, is a range of proprietary case hardening processes that diffuse nitrogen and carbon into ferrous metals at sub-critical temperatures during a salt bath. are all trademarked types of nitride in use by Glock, Smith & Wesson, etc. These processes are most commonly used on high-carbon, low-alloy steels. While some features and specifications may vary slightly, you can expect another barrel nitriding service to offer similar benefits and capabilities as patented Melonite servicing. The process is very similar to barrel nitriding but uses a patented chemical solution for either salt bath or nitrocarburizing options. The chrome inside is unaffected in this case. Tennifer, melonite, armornite, etc. The Melonite (Salt Bath Nitride/SBN) is a treatment, not a plating. Mil-spec does not equal best. In fact, nor is it the safer way. I know the advantages and disadvantages of the chrome lined but they are saying the Melonite is better. Mission Statement. From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm. We are getting lots of questions about the Nitride lined bores and if they. Who is the company, and what do they charge to do it? As a treatment, Nitride does not add any materials to the bore, rather it treats the bore as it came from the factory. Melonite™ and Melonite QPQ™ are thermochemical processes intended for the case hardening of iron based metals. All Rights Reserved. I am looking at buying my barrel for my first 5.56 build as it is one of the last things I need. It is a thermochemical diffusion process whereby nitrogen-bearing salts generate a controlled release of … It is most commonly used on steels, sintered irons, and cast irons to lower friction and improve wear and corrosion resistance. I think that it probably should be cheaper than chrome, chrome just has scale of production behind it. Salt Bath Nitriding doesn't degrade accuracy one iota, unlike chrome lining. This is a discussion on Melonite, salt Nitride M14 within the Modern M14 forums, part of the M14 M1A Forum category; PICTURES PLEASE, WHY WON"T ANYONE POST PICTURES of their rifle with the MELONITE Would you nitride/melonite a rifle or cerakote one? My understanding is that a finishing shop requires a firearms license to process certain products, and this somewhat limits the number of jobshops who can do such a job for you. Is the Melonite a good way to go if i want something that will be easy maintenance and long lasting? These processes are categorized as molten salt bath ferritic nitrocarburizing. Black Nitride. Well, so they say. ", [Last Edit: 2/8/2016 12:35:04 PM EST by ahrion], [ARFCOM NEWS] What Really Happened With Braces + S&W Sues NJ AG + NYPD Proud To Seize Props. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. Just because chrome lined is "mil-spec" does not make it better. It shoots MOA if I do my part. I think it is better to send your newly chambered barrel. I think that unless you are shooting a lot of ammo you could probably get a stainless barrel and be as good as either, and maybe more accurate, but that's more on the barrel quality than any material advantage. Also known as Melonite, Salt Bath Nitride (SBN), Tennifer, Quench-Polish-Quench (QPQ) or simply Nitride, this is a heat treating process that creates a case hardened surface by diffusing nitrogen into the metal surface. Black Nitride goes by a few names, Ferritic Nitrocarburizing, Melonite, SBN "salt bath nitriding", QCP and Tenifer, that are all names for the same thing, the only difference would be Tenifer, this process is used in Europe with a different cyanide formulation bath "EPA wont allow that in the US". All the same thing. If you care about accuracy and longer barrel live, the Melonite barrel has clear advantages. After a while you just try and get a tourniquet on it.” Cormac McCarthy. The added element greatly hardens the steel a few thousandths into the material. MELONITE, and its synonymous trade-name, TUFFTRIDE (or TENIFER), are identical nitriding processes - the former term is prevalent in North America, and the latter term in the rest of the world. Any input would be greatly appreciated as I still have a lot to learn. Melonite is not a coating, will not wear away, and provides a higher level of protection than hard chrome, nickel, and similar metal plating methods. Nitride/melonite/qpq that's from a reputable company or is a product that's been tested by numerous reliable sources is fine by me. Salt Bath Nitriding goes on both inside of the bore and on the outside surface. So, instead of 2 manufacturing steps you have combined them into one. Copyright © 1996-2021 AR15.COM LLC. I heard that if I do Melonite the barrel I should break in the barrel first. I have been pretty much looking for a chromed lined barrel but just stumbled across an Adams Arms barrel that is QPQ Melonite inside and out for a pretty good price. They are different names for a similar process. I use the same shop for my job that sig uses for their pistol barrels. Has it caused any stress to either any change in accuracy? ISONITE® QPQ (per SAE AMS 2753) is a high-performance variety of salt bath nitrocarburizing process. “All the time you spend tryin to get back what's been took from you there's more goin out the door. 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You can find enough technical papers to give you a MASSIVE headache salt bath nitride vs melonite amazing thing to for.