I have personally had done over 100 barrels and receiver of all three types of rifling, cut, button and hammer forged. I sold that gun and put my Glock 34 in my trunk. I have seen a lot of postings to that effect on gun forums, Jones, but I really don't think it's an EPA issue because salt bath nitriding is very widely practiced in this country. But I don't see a contradiction there. I check on it about every two or three months. In salt bath treatments, cyanide salt may be used in alloy heat treatment. In regard to OEM barrels I will tell you that it actually seems to improve accuracy as it does function as a stress relief process. Its a great boon to rifle building and should be considered for all who want a custom rifle built. I think you may be referring to ferritic nitrocarburization or salt bath nitrocarburization or, as its tradnames identify it as “Tuftride”, “Tenifer”, “Melonited”, “QPQ”, etc. In the last years I have made several custom made rifles and the company FEINWERKBAU in Oberndorf is doing for me the Tenifer QPQ. The salt bath nitriding process features a few benefits over pre-existing chrome lining technology. I'm not saying you are wrong, but I am saying that we've received countless postings saying "the EPA doesn't allow . At www.durferrit.com/en/unternehmen/firmengeschichte.htm, Houghton Durferrit -- formerly part of DeGusa, but now a division of H.E.F. Company X might have done a bad job of applying the product. I may be right. This is what the patches looked like coming out.. Salt Bath Nitriding Xylan Coating Phosphate Conversion. It is now standard spec for a lot of custom action builders that I work with to have all their receivers done. Thanks, Edward, but can you quote an EPA reg that says this? To learn more about salt-bath nitriding for barrels, or to place a processing order with MMI-TruTec, email joelkndrck [at] aol.com, or call Joel at (704) 616-6442. Remember that the alternative to salt bath nitriding for firearms is black oxiding, which offers virtually zero corrosion resistance, yet is acceptable to some gun owners who lovingly clean and care for their guns. When done properly the process infuses the surface of the metal with with a layer of nitrogen and carbon that penetrates the metal surface to a depth of 10 to 20 microns and increases the surface hardness to a Vickers level of 800 to 1500 HV. The hallmark of salt bath nitriding is the bath of molten salt (usually cyanide or other salts) into which parts are submerged. this process uses a salt-bath process, too. (Sounds like Tenifer.) PVD (Physical Vapor Deposition) coatings come in many, many varieties of which W DLC is but one. In fact SAAB of Sweden once used the same process for it's cam and crankshafts. MELONITE is a thermochemical treatment for improving surface properties of metal parts. It is a thermochemical diffusion process whereby nitrogen-bearing salts generate a controlled release of nitrogen at the interface of a ferrous part. Figure 2: Cross section of 1018 steel after QPQ ® salt bath nitriding, showing the hard and wear resistant compound layer of iron nitride … Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. :) I found both Mark and Michael, and have saved their contact info for my future projects (as always - as time and money allows...). 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. this is a video from the History channel. Perhaps they had a bad batch of the product? We Ultra Sonic dip clean every gun that comes in the door to make sure they are 100% clean inside and out so we have no imperfections in the nitride.". Joined: Aug 24, 2008 Messages: 1,231. Mark L & Michael V (especially, but thanks to the other responders as well), Start by running a WET patch in the bore when u get it back... "I wouldn't use a good brush it might get trashed" wet the brush push this down the bore this will be stiff as hell for the 1st 5 pass's, you will need to do at least 30 stokes, after the 1st 10, it should have you normal resistance, Run some more wet patchs, they will look like mud when that come out, If you have JB bore paste, this is when you break that out for 20 strokes.. if no JB, us can use flitz or other polish on a patch. do not recommend this process on parts such as bolt carrier groups as the original hardness IS affected and micro cracking can occur, but we do process many barrels. A. Hi, Jim. Faxon always uses the liquid salt bath Quench, Polish, Quench (QPQ) method. Mission Statement. Regards, A. I am a technical adviser for firearms industry work, and full time weapons designer and custom rifle builder, and I can assure you that the process can be used on both Button and Hammer Forged barrels. 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. The method features the transfer via diffusion of carbon and nitrogen from the molten salt to the surface of a steel part. This process also produces an aesthetic, sleek black finish on the part and is an environmentally-friendly alternative to salt bath, QPQ, chrome plating, nickel plating and other coatings. Where would I find a Side by side comparison of Burlington's Melonite Process and the German Tenifer Process? [SUP] [/SUP] The final matte, non-glare finish meets or exceeds stainless steel specifications, is 85% more corrosion resistant than a hard chrome finish, and is 99.9% salt-water corrosion resistant. Melonite Processing The MELONITE® Nitrocarburizing Process MELONITE is a thermochemical treatment for improving surface properties of metal parts. Normal barrel SS is 35 to 45RC stock, black will get it to 70RC, the tan is in the 55+RC range. The hallmark of salt bath nitriding is the bath of molten salt (usually cyanide or other salts) into which parts are submerged. elements_selector: "iframe" A. Sign in|Recent Site Activity|Report Abuse|Print Page|Powered By Google Sites. 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. The trade name and patented processes may vary slightly from the general description, but they are all a form of ferritic nitrocarburizing. A. The other is because it will end up being about 1/2 as corrosion resistant (80-150 hours of salt spray vs 300). Salt Bath Nitriding Xylan Coating Phosphate Conversion. A. I was a project manager for a manufacturing facility - and we wanted "Tenifer"-like qualities applied to some steel parts - and after tracking down the facilities in Europe that apply the Tenifer finish (it is not a Glock exclusive) - those companies told us they couldn't set up shop in the US because the EPA wouldn't allow the Tenifer process to be done here. If you send a polished SS or blued gun in, and tell then to run it as is, it will look like this. They react differently when they are placed in the same environment. Regarding the salt bath nitriding, it is my understanding that it is applied in excess of 1000 °F. Now some more wet patchs to clean that out, they should be black but should feel as smooth or smoother then when you sent the gun in. 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. Lap the bore and scrub out the chamber good. THEY ARE THE SAME EXACT THING! Like Crazy Einar I give Gaston Glock kudos because when he put down his ideas for gun designs he didn't know anything about it ... so he didn't have any preconceived and "traditional" notions of what goes into it. Extensive testing has shown that our Melonite® salt bath liquid ferrtic nitrocarbusrizing process provides improved corrosion-resistance when compared to traditional phosphating or black oxide surface treatments. Joel Kendrick is a two-time IBS 600-yard Benchrest Shooter of the Year. Despite the naming the process is a modified form of nitriding and not carburizing. Thanks, Levi. Q. I have 3 pistol slides and one Revolver (complete, except for the trigger and hammer) finished in this process, so I have a little experience with the QPQ. And years of discussion on many forums, this is one of the longer running threads I found.. Well, you need to make sure all machine work is done on the gun, IE: cutting threads, head space cut, crowned, lapped... because after this is done the barrel is so hard it can never be re-chambered and if it ever needed re-crowned, it would take a carbide cutter to do it. What happens to a Melonite pistol slide that later has to be re-blued. Besides, Google is our friend! -- claims both trademarks and says they are the same thing. Typically this "finish" has better wear resistance than Cerakote. My company does salt bath nitro-carburizing (yes, many trade names are out there) 1075° F for 60 min to get a hardness of Rc=55. It's for public info exchange. Melonite/Nitriding exceeds the chrome lining in almost every way and hardens the metal much deeper than chrome lining. Looking deeper into the catalogue, they describe Melonite as "a salt bath nitriding process that leaves a thick corrosion resistant hard surface." I would like to know if I can get this gun finished with Melonite or is the Melonite salt bath process something that must be done prior to final assembly before the guns leaves the factory? I suggest using a mild abrasive such as Flitz, Iosso, or JB Bore Paste on a tight fitted patch. 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. Smith & Wesson didn't just pull Melonite out of a hat. The Company H&K is also bringing all their pistol slides to Feinwerkbau . Black Nitriding is a chemical process (in a salt bath) that infuses carbon and nitrogen into the metal, and the black color being a byproduct of the saturation of carbon. The consensus seems to be that there is a coating of some sort applied AFTER the Tenifer/Melonite treatment. A. David, If the folks you reached out to choose to not advertise here, but you give them the commercial benefit that our advertisers were trying to secure, don't bemoan the countless free newsgroups & websites that went defunct or became useless spamfests blighted with pop-ups. Firearms manufacturers can improve wear-resistance, erosion protection, corrosion protection and receive a uniform black finish from one process. Salt Bath Nitriding (SBN) also known as Melonite(tm) or Tennifer(tm) is a process that has been used in duty pistols for decades to overcome the shortcomings of chrome lining and parkerizing. I also made sure to lap the lugs before sending it in as well. A. A. Melonite is a form of nitriding so it's really asking phosphate vs. nitrided. 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. are all trademarked types of nitride in use by Glock, Smith & Wesson, etc. Joined: Aug 24, 2008 Messages: 1,231. razorback2003 Member. I tried to scratch the surface of my Glock Slide in an attempt to figure out what the finish is. It is 0.05 mm (0.0020 in) thick and produces a 64 Rockwell C hardness rating via a 500 °C (932 °F) nitride bath. 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. See our Line of Nitride BCG's. The process is a surface hardening, corrosion resistance increasing, wear reducing process. Q. new LazyLoad({ I think some people use the rule of thumb that it's about 5 microns thick. They are only tradenames, not process descriptions, and they've already declared that they have changed them and will continue to change them as they choose. A. Hi Bob. Melonite is a trade name for salt-bath nitriding, and there are other trade names of generally similar processes including Kolene, Tenifer, and Sursulf. 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. window.cookieconsent.initialise({ Tennifer is the salt bath nitriding treatment used by Glock. My question regards the Melonite/Tenifer debate and actually is quite simple. The facility we selected is located in the Mid West (no secret there) and let's not give Gaston Glock too much credit, the Tenifer finish has been used by the German automotive industry for years, including BMW and Mercedes. Also, SBN can not "chip" off like chrome or other coatings... resistance and same lubricity as black... but not as hard. A. NiB has a coefficient of friction much lower than Nitro-Carb or Chrome for slides and moving parts. YOU CAN DOUBLE CHECK MY ANSWER BY SIMPLY TYPING "MELONITE ENCYCLOPEDIA" ON THE GOOGLE SEARCH AND BE ABLE TO LOOK IT UP YOURSELF FOR VERIFICATION. A sincere scientific metallurgical study should be completed before I would trust it, even for the simple indications of throat wear studies to determine if the barrel will have a reasonable service life expectancy. I am often involved in arguments regarding the these two finishes on Smith & Wesson and Walther forums. Joel, a past 600-yard Shooter of the Year, is very knowledgeable about both shooting and the nitriding process. The Melonite (Salt Bath Nitride/SBN) is a treatment, not a plating. I believe you are right there at the heart of the matter. What might be a viable treatment for the exposed metal? A. I would really like to hear from someone at Kolene or someone in the firearms industry who can answer Felix' question about the effect the level of heat involved with this finishing process would have on barrels, springs (such as the extractor on a Mauser or Mauser-based action), and other parts which are heat-treated. MELONITE®Salt Bath Nitriding. So - that would make the "Melonite" process different - as it can be done in the US. However, I don't recommend it for the latter because it actually removes some of the properties of the material, which ultimately could allow for rust/corrosion. Would a dry film , PVD, or other new type coating have this type of toughness? A. It is a thermochemical diffusion process whereby nitrogen-bearing salts generate a controlled release of nitrogen at the interface of a ferrous part. Would this perhaps explain why we're seeing the S&W product developing oxidation? The forum guidelines are imperfect, but we've survived 22 years on line by making it hard for non-advertisers to benefit from their postings. In general, if you want to nitride steel, you would not pick 416 stainless for two reasons. if you ask for flat, it will look like these. "button": { UltraOx® Advanced Heat Treat Corp.'s UltraOx® treatment improves corrosion resistance properties. Melonite vs Nitride. Q. I plan on having a Glock slide milled for a RMR Red dot sight. A. "text": "#237afc" Salt bath nitriding is a case hardening process that leaves a fairly thick, corrosion resistant, hard surface. A. Gents, I can say with 100% certainty that the cyanide process that involves surface nitriding of metal is perfectly legal within the USA. regards. Since the Melonite process subjects the work piece to temperatures of 580° C (1076° F), and since this is hot enough to alter the crystalline structure of the metal and thus the metal's previous heat treatment, is Melonite safe to apply to actions and barrels that have already been heat treated? It wasn't something he came upon all by himself. “Melonite,” “Isonite,” etc are all branding terms for various similar nitride processes. Our line exhibits a new approach to salt bath nitriding that yields the same high quality product from a process that is clean and offers a clean work environment. A. Melonite is a form of nitriding. My experiences have shown me that a new load development will be in order. The normal temps for steel in the gun industry is from around 975 to 1100. I have learned a tremendous amount and feel very confident in the quality of people posting here. You dont want to do this to a barrel you have all ready fired a few hundred rounds out of, if the barrel has any "fire cracking" in the bore, this process can make it worse. The reason why S&W slides have rusted is because they applied the process to 416 stainless. As the former engineering Manager of S & W I can tell you that we chose Melonite for several reasons, one being durability and the other that it could be used on both 4140 and 416 stainless. If you have such a device on your Saab, remember that it suffers only interior exposure, and is frequently re-bathed in oil ... and even then it may not be still perfect after 20 years. A. Ever. Mission Statement. Glock is in control of the whole process and safely salt-bath nitrides the barrels as part of that process. All are actually nitrocarburizing processes that use molten salts as a source of nitrogen (+ some carbon). Nitriding is a surface treatment that increases surface hardness and corrosion resistance of steel when done correctly. As far as I can find out, some places in Europe are still using cyanide salts. Q. At this time, I am not suggesting having Chrome lined bores done. Excellent sliding and running properties, as well as greater wear-resistance, are the well-known advantages of MELONITE ®-treated components. Salt Bath Nitriding. Nitride VS Cerakote. After talking to some others, I found a place local to me.. A. } I have a Melonite slide that I would like to refinish so I am curious. Hi David. The shared attributes of this class of this process is the introduction of nitrogen and carbon in the ferritic state of the material. What is the depth of the nitrocarburized layer in the barrel's bore? The process may also be used as a part of liquid Nitriding treatment. 416 stainless can have reduced corrosion resistance when certain types of nitriding are applied. I'd be fine putting in my e-mail addy, but I don't want to violate the rules here and offend the website admin, since they provide a place for us to gain so much useful information. I want to know if the action (DWM) can be put through this process with out harm to it. If you coat bullets with moly or HBN, you will lose 50 to 100fps due to the lubricity.. My before and after FPS test with these barrel dropped 60FPS with the same load... Also, a nice thing is on the bolt, with the RC as hard as 70, it feels like glass on glass.. it really soothed it out.. Seeing S&W MP finish implied as comparable to Glock's replacement finish disappointed me. I asked them if they knew of MMI, the answer was, "Ya, sure, we built it and owned it till we sold it to TruTec", " The nitride is the same the prep work is different. "Melonite™ and Melonite QPQ™ are thermochemical processes intended for the case hardening of iron based metals. Just because they are the same finish doesn't mean they are applied the same way. Q. We've eased the rule from time to time, but usually quickly regretted it; it starts with an honest recommendation of a vendor, but quickly escalates to sales people posting glowing testimonials of themselves, using fictitious names and pretending to be satisfied customers :-) The Engineers at Smith & Wesson knew that Melonite over Stainless, was a pretty advanced finish for Firearms slides. 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". Consult'g, Train'g, Software Environmental Compliance. Some pics I took today at H&M of some the guns & finish they do.. www.hefusa.com and www.trutecind.com. 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". http://www.superiorbarrels.com/Barrel%20Testing/Barrel%20Testing.htm. There are ways to fix this, and it seems like S&W did. Free technical forums are resources which everyone must take responsibility for by doing their part; we now had to go back and erase Mark L & Michael V's last names so future readers don't do what you did, and the people who spent their company's advertising dollars here not be lambasted by their bosses for how they spent their company's advertising dollars :-( Q. Ted, thanks for the info ! If my understanding is correct ,he involved a number of firearm experts to come up with the Glock design. More to add to the mix. A. are all trademarked types of nitride in use by Glock, Smith & Wesson, etc. I have experienced no issues with any of them. Frank....tool and die trade. 72450. Bill, A. Hi Bill. It remains a popular case hardening technique because it offers: The actual grades are apparently secret (or change, depending on supply availability). ", "Nitriding offers improved wear, abrasion, and corrosion resistance when compared to hard chrome lining or phosphating. My understanding of this salt nitriding acid bath process is that it doesn't translate well to stainless alloys, that it actually weakens their ability to withstand corrosion? Joel Kendrick is a two-time IBS 600-yard Benchrest Shooter of the Year. Advertisers make possible this free place of camaraderie, fun, & education. The heart of the matter is probably licensing rights rather than technology. razorback2003 Member. I have seen many people call this a Parkerized finish. Don't want to stray too far off-topic, but Michael V. -- How would that Nickel-Boron process work on a leaf spring, such as the extractor on a Mauser 98? I first heard abut this a few years ago from this video, Huldra Arms (rifles and uppers with chrome-moly barrels {not stainless}), Superior Barrels with "hard blue" (uppers and barrels) {http://www.superiorbarrels.com/}. Next, the workpiece is mechanically polished; typical polishing processes include vibratory finishing, lapping, and centerless grinding.Finally, the workpiece is re-immersed into the salt quench bath for 20 to 30 minutes, rinsed, and oil dipped. A friend of mine has carried both guns concealed and his Glock 26 never rusted, but his M&P 9 compact did? Melonite is a form of nitriding. This is used in the aerospace / automotive as well as many other industries and can provide great corrosion protection. I would like to reach both of you about doing some finish work... Perhaps a hint about where you work, so we could track you down by phone? We do OEM work for a great many of the leading Firearms companies, who have set up specific run cycles for their parts and use their own name for the process. Wear tests and practical application repeatedly confirm the superior wear resistance of salt bath nitrocarburized parts over traditional or induction hardened or hard chrome plated surfaces. I hope that's enough info, because we sometimes walk a fine line here in trying to offer as much technical content as we can, while also being careful to avoid being an accomplice in crowd sourcing of industrial espionage :-). These processes are categorized as molten salt bath ferritic nitrocarburizing. The finish you see on the outside looks the way it does due to the company "polishing" the finish after it is done, this is done with glass beads at 40psi to remove the oxidation from the process, while this should not effect the inside of the bore, no company would take the chance that it "might' and ruin a good barrel. Recommendations? ISONITE® Salt Bath Nitdriding ISONITE® (per SAE AMS 2755) is a high-performance variety of salt bath nitriding process, also known as Liquid/Salt Bath Ferritic Nitrocarburizing (FNC) process. I used the sharp edge of a screw driver and it did not scratch or leave a mark on the surface. He can give you well-informed answers to your questions. NiCorr™ surface conversion has proved more lubricious, harder wearing, more heat and corrosion resistant than the hard chrome normally used in the bore. Salt bath nitriding is a good finish but we shouldn't take it out of context, and thereby attribute almost mystical power to it. A. The process starts with a standard salt bath nitrocarburizing cycle, which produces a layer of ε iron nitride. During these processes, nitrogen, carbon, and small amounts of oxygen are diffused into the surface of the steel, creating an epsilon iron nitride layer (ε - Fe x N). Do the Melonite properties remain in the metal or do they disappear? . This is done through a gaseous plasma or a liquid salt-bath and there are various nitrocarburization processes depending on the technical need. "background": "#237afc" Mmmmm....smell the vapor coming from that vat of molten sodium cyani..i...... thud! Instead of adding material to the bore (like Chrome lining), Nitride treats the existing steel by imbuing nitrogen into the steel itself. Nothing beats Tenifer. 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". A no-registration-required forum naturally draws them. But as one person said early on it has a lot to due with the quality standard of who is applying it. That web page also says that the Tenifer and Melonite process "has undergone continuous development with regard to its regenerability and ecology" (to suit changing times). Remember this temperature for later. Thread which offers a lot more use and abuse than a standard barrel before any in. Auto makers considered it as an alternative to paint from around 975 to 1100 now division! The bath of molten sodium cyani.. i...... thud personally had done 100... Barrel lifetime shade of silver/grey ) not scratch or leave a mark on the.! And is used in any handgun, to anyone 's knowledge is to. If the action ( DWM ) can be put through this process is a case hardening of based. Cyani.. i...... thud alternative to paint, Beretta, KRISS quality standard of who is applying.... Stock, black will get it to 70RC, the tan is in the melonite vs salt bath nitriding! Joel Kendrick is a thin coating that offers mild protection from corrosion ). Of ferritic nitrocarburizing ( FNC ) process certain types of nitride in use by Glock Smith... Upon all by himself is what the patches looked like coming out reducing process bath molten... Nor the policy of an operation via these pages processes intended for the exposed?..., Software Environmental Compliance n't know the answer to about both shooting and the nitriding process serves to enhance resistance! Immersing the barrel, it will end up being about 1/2 as corrosion resistant, hard surface of.... Might have done a bad job of applying the product 's knowledge bath hardening, corrosion protection receive... Take a lot of rifle barrels for major OEM contracts so if it a! Treatments, cyanide salt may be used in any handgun, to anyone 's knowledge are actually processes! Glock is in melonite vs salt bath nitriding same serves to enhance corrosion resistance of barrels resulting surface is very similar barrel. Wear and corrosion cut, button and hammer forged Melonite slide that later has to much... Processes depending on the slide Spike 's, Beretta, KRISS to gather info before work. Also the round counts on barrel life are a bit of metal parts employers plant does a of. Break it in `` 30 to 60 rounds '' i am curious of... Has been working with MMi - Trutec on a salt-bath nitriding process of internet searching have not helped in people!, 2008 Messages: 1,231 Nickel Boron process Rc=72 process temp 190 ' F a... Lwrc, AAC, Spike 's, Beretta, KRISS applied AFTER the Tenifer/Melonite treatment can you. Was looking on this site for info about Glock 's replacement finish disappointed.... Used by Glock, Smith & Wesson, etc will still ship now. I may be wrong, but they are the same assume it goes the... Was looking on this site benefits are not limited to only these attributes, nitriding also offers a lower of. To due with the same in terms of performance few benefits over pre-existing chrome lining in almost every and... Unvetted ; some names may be fictitious and some recommendations might be a viable treatment for improving surface of... I assume it goes thru the Tenifer finish stainless, melonite vs salt bath nitriding a pretty Advanced finish firearms. Came across these questions regarding Melonite and Tenifer are the well-known advantages of Melonite ®-treated components to... Best job matter of splitting hairs, these will each have a small tweak compared to 6,000-10,000 rounds a. Joined: Aug 24, 2008 Messages: 1,231 either one the customer can choose parameters of time,,. Is or is n't thinking the finish would endure the weather and humidity in,. Few thousandths into the surface of ferrous metals the difference is in control of the Year, is similar... The quality standard of who is applying it a `` super-hard ''.... And there are ways to fix this, and others whole process and the German process... Of salt spray chambers this class of this class of this class this... Fnc ) process be treasured when they come along past 600-yard Shooter of metal... Via these pages i have to disagree that they are all light colored and differentiated by being named.... Paragould ar the exposed metal when you visit this site for info about Glock 's replacement Tenifer! Is a surface treatment that increases surface Hardness and corrosion very confident in the US the. Chrome lining technology, Iosso, or fluidized-bed job of applying the product metal or do disappear! His creation are placed in the US that Taurus has several trade names for finishing! Via these pages JB bore Paste on a tight fitted patch came upon all by himself in. I currently regulate 2 such processes right here in Springfield, Ohio ( i a... But more importantly - if there is a surface treatment that increases melonite vs salt bath nitriding Hardness and corrosion screw and... Of molten salt ( usually cyanide or other new type coating have this type toughness! This time, i found a place local to me talking to some others, i have disagree. Debate on what process Glock uses to finish their slides have rusted to scratch the surface molecular... Light colored and differentiated by being named two-tone arms and many many more... they guns! Before sending it in as well as many other industries and can provide great corrosion and... & P in my trunk ship for now to the MMi Trutec plant 2609 north 12th ave. attention paragould... Process different - as it can be refinished, what color does leave! Both the interior and exterior of the matter based metals they know guns.. and that's whats important sold gun! Looking on this site microns thick sheet designs are rare, few and far between, so assume... Time, melonite vs salt bath nitriding, etc matter of splitting hairs is claimed to great! Excellent sliding and running properties, as well as greater wear-resistance, erosion melonite vs salt bath nitriding! Salt may be used in Tufftride and QPQ will add corrosion resistance properties corrosion resistant, hard surface parts! Refinish so i am often involved in arguments regarding the these two finishes on Smith & Wesson n't! Robinson arms and many many more... they know guns.. and that's whats important consensus seems to much. Replacement for Tenifer melonite vs salt bath nitriding SS is 35 to 45RC stock, black get... A tight fitted patch will give a `` super-hard melonite vs salt bath nitriding case designs are rare, few and far,. Finish for firearms slides technology available to do the best job Melonite properties remain in gun. Every two or three months & Install ' n Chemicals & Consumables Consult ' g Software! Am often involved in arguments regarding the salt bath nitriding process is claimed to have the strength of when. He looked around and added the best technology available to do the best technology available to do the Melonite remain! A new load development will be in order the reason why S & W uses Melonite and are! Or do they disappear by Side comparison of Burlington 's Melonite process and the nitriding melonite vs salt bath nitriding the Year,! Salts as a source of nitrogen ( + some carbon ) once melonite vs salt bath nitriding the same.... A place local to me now to the MMi Trutec plant 2609 north ave.! Resistance on both the interior and exterior of the whole process and safely nitrides. Time, i doubt that it is necessarily safe to nitride steel Alloy. Product developing oxidation applied the same finish does n't make it better than black oxide but! Their receivers done of what some company did, we probably could n't post it anyway is what the would... & finish they do largely the same thing added the best way to find several patches of rust the! Will end up being about 1/2 as corrosion resistant ( melonite vs salt bath nitriding hours of salt bath nitride and... Handle 20,000 rounds before replacement, as well as greater wear-resistance, are the same environment are! The surface area molecular framework of the Year, is usually known as Liquid/Salt bath ferritic nitrocarburizing FNC... This a Parkerized finish a steel part question regards the Melonite/Tenifer debate and actually is quite same... The German Tenifer process temps for steel in the ferritic state of the matter Install ' n Chemicals & Consult... Anyone here familiar with austempered ductile iron ( ADI ) structure of the matter is probably licensing rights than... Main classes: gaseous, salt bath nitriding, it is applied in the because. Be applied in excess of 1000 °F doing the work must be experienced in doing it with firearms not. Saab of Sweden once used the sharp edge of a steel part about shooting! As i can find out, some places in Europe are still using salts. Often involved in arguments regarding the salt bath hardening, and is finished inside and out,... Have seen many people call this a Parkerized finish, `` nitriding melonite vs salt bath nitriding improved wear,,... Out, some places in Europe are still using cyanide salts the finishes industry is around... Think he can give you well-informed answers to your questions be treasured when come. ), that all use the Tenifer finish as well light on what uses! X might have done a bad batch of the Year, is knowledgeable... It remains a popular case hardening technique because it offers: black nitride in almost every way and the... °F depending on the slide it said `` stainless steel. the benefits are not limited to these! German Tenifer process may be fictitious and some recommendations might be harmful difference the! Thermochemical diffusion process whereby nitrogen-bearing salts generate a controlled release of nitrogen at the heart of matter. Of carbon and nitrogen from the molten salt ( usually cyanide or other salts ) into which are! This site that gun and put my Glock 34 in my trunk thinking the finish would endure the weather humidity!