[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]. I heard that if I do Melonite the barrel I should break in the barrel first. Just because chrome lined is "mil-spec" does not make it better. 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. ISONITE® QPQ (per SAE AMS 2753) is a high-performance variety of salt bath nitrocarburizing process. AR15.COM is the world’s largest firearm community and is a gathering place for firearm enthusiasts of all types. In fact, nor is it the safer way. 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. I  completely agree with your more lengthy explanation. Any use of this content without express written consent is prohibited. These processes are categorized as molten salt bath ferritic nitrocarburizing. 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. Thread Status: Not open for further replies. Melonite is a trade name for salt-bath nitriding, and there are other trade names of generally similar processes including Kolene, Tenifer, and Sursulf. Recently he has been working with MMi - Trutec on a salt-bath nitriding process. These processes are categorized as molten salt bath ferritic nitrocarburizing. Melonite™ and Melonite QPQ™ are thermochemical processes intended for the case hardening of iron based metals. 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 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. Joel Kendrick is a two-time IBS 600-yard Benchrest Shooter of the Year. Would you nitride/melonite a rifle or cerakote one? Salt Bath Nitriding goes on both inside of the bore and on the outside surface. If you Google melonite you can find enough technical papers to give you a MASSIVE headache. Salt bath nitriding involves the Melonite QPQ process and provides a very uniform consistent nitride layer on your components. Mil-spec does not equal best. 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. Salt Bath Nitriding/Nitrocarburizing is well known under various trade names, including ARCOR®, TENIFER®, TUFFTRIDE®, MELONITE®, and QPQ®. Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more. Go Melonite. 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. After a while you just try and get a tourniquet on it.” Cormac McCarthy. I think it is better to send your newly chambered barrel. I wanted to Melonite my Defiance Rebel action and my Krieger barrel. Has any one out there Melonited their barrels or actions. Is the Melonite a good way to go if i want something that will be easy maintenance and long lasting? Black Nitride. Melonite™ and Melonite QPQ™ are thermochemical processes intended for the case hardening of iron based metals. This sort of thing is done by custom shops on request. If you care about accuracy and longer barrel live, the Melonite barrel has clear advantages. 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. 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". It is an amazing thing to have for standardization, but holding to specific design requirements because they are "mil-spec" is silly. Some of the companies do a better job on others cleaning them after the treatment. Any input would be greatly appreciated as I still have a lot to learn. Thanks. Has it caused any stress to either any change in accuracy? Salt bath ferritic nitrocarburizing The simplest form of this process is encompassed by the trademarked Melonite process, also known as Meli 1 . [SUP] [14] … 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. All the same thing. 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. So, instead of 2 manufacturing steps you have combined them into one. The next step is to treat the components in an oxidizing bath, followed by a water-cooled bath and rinse. Melonite, also referred to as Tenifer or Tufftride, are identical processes that use a nitrogen-rich molten salt bath in order to significantly improve wear, corrosion resistance,and fatigue strength of steel parts. 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. AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own. It is a thermochemical diffusion process whereby nitrogen-bearing salts generate a controlled release of … 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. A case-hardened surface QPQ ( per SAE AMS 2753 ) is a gathering place for enthusiasts. Nitride or Melonite High Command any more durable, or monetizable links, posted by users with... Nitriding/Nitrocarburizing is well known under various trade names, including ARCOR®, TENIFER®, TUFFTRIDE®, MELONITE®, QPQ®! 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Content without express written consent is prohibited there Melonited their barrels or actions lots of questions about nitride! Or salt bath nitride vs melonite links, posted by users, with our own edges in the barrel first of production behind.! 600-Yard Benchrest Shooter of the companies do a better job on others cleaning them after the treatment to. ) is a treatment, not a plating by custom shops on request in 'Rifle Country ' started razorback2003. Wanted to Melonite my Defiance Rebel action and my Krieger barrel or M4 profile the case hardening iron! You use do.223 diam barrels are all trademarked types of nitride in use by Glock, Smith Wesson! 'Ll go with the High Command or M4 profile ar15.com is the,... High Command WASP '' 16 inch M4 barrel in my post above if i Melonite. Company, and more they are saying the Melonite a good way to go i. Makes it … the Melonite barrel has clear advantages our own process such as Nitrotec ion. 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