So you will get a shinier finish. Cold blues will react with steel at room temperature, but you get more aggressive reactions when you heat the gun to, oh, 150 to 200F. "@type": "Article", Itll take perhaps 20 minutes to really dry down. Then you can express blue it with a propane torch and a tank of boiling water. There's also blued hardware available, like nuts, bolts, screws, and hinges. If you dont drain the barrel or action recesses properly before putting a barrel or action into a hot salt tank, then you will find out in a hell of a hurry as the water flashes to steam under the surface and again, splatters hot, highly caustic lye/nitrite salts all over you and your shop. I hope to someday have good knowledge to pass on to people, heh. 4. Once you get the colour you want, go outside to your oil container and fully quench your object into the oil!Note: I know a plastic container is Then, you can put the components back into the bluing tank and increase the temperature until you see the blued steel. These minerals (often calcium and magnesium compounds) tend to result in blotchy and uneven results. Wait for a day to let the bluing properly cure before you do anything else to it. I saw you reference a coleman stove and propane tank for heating solution. Remember the oil is probably gonna release some smoke/fumes once the piece is quenched so as said before: please do this step in a well ventilated area. Hot bluing is the current standard[6] in gun bluing, as both it and rust bluing provide the most permanent degree of rust-resistance and cosmetic protection of exposed gun metal, and hot bluing takes less time than rust bluing. The robot gives the steel valve seat a quick blast with liquid nitrogen and drops the seat right in place. "sameAs": ", steel". 1. They melt at, oh, somewhere about 280F. on Introduction. Oil-free steel wool is also sold by woodworking shops. -something to hold your object with i.e. What did you use for polishing your pieces and Im guessing you polished then added the chemicals after?Thanks, Joe, Question Next comes the main part. Mark the sharpened edge with a crayon. Im asking because theres a guy on YouTube recommending Brown Express first, then several layers of Blue over that. Hunter holds a BFA in Entertainment Design from the University of Wisconsin - Stout and a Minor in English Writing. Your 700F temp is too high, IMO. Put 600 grit compound on a wheel, use a little too much pressure and youll be gob-smacked at how fast it can cut material off the gun. pliers, mole grips, -An old metal container (I know, a plastic container is pictured but always use a metal one) filled high enough with oil to completely submerge your steel object would be ideal. Once the solution reaches its boiling point, turn down the burner to about one-third of the boiling temperature and let it stay there. They are still sometimes used by gunsmiths to obtain an authentic finish for a period gun of the time that rust bluing was in vogue, analogous to the use of browning on earlier representative firearm replicas. It is not nice stuff. Youll want to clamp on the barrel directly under the sight youre about to drift out. We use cookies to make wikiHow great. Just take them from the comments he posts. The salts will be a gooey caustic mess while theyre cold, and you MUST have covers on the tank when youre not using them, or the salts will climb over the edges of the tank and make a mess on the floor. Alternatively. When putting water in your boil-out tank, use distilled water if you have water with high mineral content. Thanks to all authors for creating a page that has been read 914,567 times. While the rod may heat some by conduction, it wouldn't get hot enough to start the color-forming process. You can experiment ultimately what oils to use. Apply heat to your object and heat up gently and equally. Approved. (NaOH from Ebay soap supplies). By the time I was done it looked like it was a beat up 5 year old gun rather than a 1930s bolt .22 that came from a scrap yard. Various processes are used for the oxidizing process. We have all kinds of rifles and shotguns with recievers made from non-Fe alloys again we do not give it a second though or break out the hardness tester. on Step 1. steel With. 2. Use your torch to bring up The tank of distilled water you heat with a camp stove, the kitchen stove (Im not responsible for marital discord and disruptions of conjugal relations) or some other much larger heat source to a boil. My current rifle builds are going to be parkerzied. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. Its much cheaper anyways. My advice to people here: Unless youre a professional, and youre working in a shop with all the required safety gear (a cold water shower within a couple feet of the tanks, and an eyewash station next to the tanks, and someone working in the same shop every moment youre working on the salt tanks), DONT. Fume bluing is another process similar to rust bluing. You have entered an incorrect email address! It is caused by a layer of oxide that forms when the steel is heated. The blue appearance of the oxide film is also used as an indication of temperature when tempering carbon steel after hardening, indicating a state of temper suitable for springs. Work on a metal or steel surface, such as an anvil, to avoid any fire hazards. This answer was tested with a utility knife blade and it drilled through with ease. However, rust bluing small areas often match, blend, and wear better than any cold bluing process. Should something happen, seek medical help right away. However, oil may spill and create a fire hazard if the steel is put into the oil too quickly. I want to add rainbow color to safety razor blades that would be used again, how can I do this? Its a good process, but it isnt a 1:1 replacement for blueing. I have at least three cold blue solutions in my shop including Oxpho-blue, 44-40 and others. That way, you can still use your oven for the rest of the evening. Color case hardening is the predecessor of all metal coloring typically employed in the firearms industry. YouTube - Nitre bluing a few gun parts. Ill go into parkerization later this week. This article has been viewed 914,567 times. I handed a buddy my wallet and cell phone, and stepped under the safety shower and got wet. The head is fixtured and and an arm holding the valve seat moves the the proper location. The process isnt intended for bronze. There are 10 references cited in this article, which can be found at the bottom of the page. Heating up a tank on the kitchen stove. it takes a long time to heat up a long (ie barreled action length) tank that is, oh, three barrels wide. % of people told us that this article helped them. Metal parts that look black or blue-black are usually blued (rather than painted). Slow rust blueing can take a week or more to accomplish, but it is a durable blue job like no other. Its nice when something can be re-used a time or two, especially when used in diversified ways. "https://www.reddit.com/user/theshootingmystery" I dont use hot salt blueing because much of my work is on older double guns, which have ribs that are soft-soldered into place. Black iron wire You will need black iron wire to tie around any object you Blue This article was co-authored by wikiHow staff writer. I have always wondered about storage in gun soft cases or the foamed Hard cases, and humid or dry, heat and cold. Before operating your torch, read all instructions so you know how to handle it safely. "mainEntityOfPage": "https://shootingmystery.com/blue-stainless-steel-beginners/", It is always essential to remove all oils from metals you want to blue, even if the cold blueing solution claims you dont need to do so. Wear safety glasses and gloves while working with hot metal. Do all the prep you would for express or rust blueing, especially degreasing. All tip submissions are carefully reviewed before being published. And then there is the difference between general care and storage vs available daily carried protection pistols living in a some sort of Holster (nylon or leather) , good, bad, take them out or leave them in? Next wash your piece in your chosen degreaser for a minute or so to get rid of all grease/fingerprints that was on the metal. I really appreciate you taking the time to share it DG. Different colors can be achieved through variations of this method including quenching in oil instead of water. You will get it. It provides the stainless steel surface with a layer of protection, giving rust and corrosion resistance while reducing potential glare as well. 4 years ago Often it does provide an adequate cosmetic touch-up of a gun's finish when applied and additionally oiled on a regular basis. http://cdn.spectrumbrands.com/~/media/Spectracide/Files/MSDS/SpectracideStumpRemoverGranulesSDSApr15.ashx. "Rust bluing" and "fume bluing" provide the best rust and corrosion resistance as the process continually converts any metal that is capable of rusting into magnetite (Fe3O4). Not only does it give you an alchemical feeling of satisfactionbut it also gives the metal a finish to stop corrosion. "https://www.facebook.com/Shooting-Mystery-110244180901951", Process that partially protects steel against rust, This article is about the historical uses of black oxide. Itll evaporate rather rapidly, but still, dont whip it at cars or house finishes. Cold blueing is OK for touchups, at best. What I forgot to mention in all of this is a detail that seems mundane, but it critically important: Wear cotton gloves. I pulled the temp off the top of my head. And thats about everything you need to know about stainless steel bluing. When you buy through links on our site, we may earn an affiliate commission. When the liquid stops bubbling, remove the metal from the container and wipe off any excess liquid. The rod was heated and the plate 2" square was inserted and the rod shrunk onto it. DIY Gun Bluing The hotter the steel, the further the oxygen can diffuse through the oxide coating, so the coating builds thicker before it protects the steel from further oxidation. Theres nothing I see as super-dangerous about blueing other than trying to do hot salt blueing without all the correct safety equipment and precautions. In literally 10 seconds on a buffing wheel incorrectly applied, I could screw that up to a point where it might take be eight+ hours of hand polishing to recover my prior results. You can not do this method with Aluminium because it won't reach the temperatures required for bluing, it will just melt. The difference is immersion in boiling water for bluing. Acetone is also useful for de-greasing the barreled action. Water is great for rapidly quenching the hot metal, but it could cause thin steel to distort or crack. At the end of this heating process the crucible is removed from the oven and positioned over a bath of water with air forced through a perforated coil in the bottom of the bath. Put all the components into the tank and wait for 5 15 minutes. for 6-8 hours. Bluing, being a chemical conversion coating, is not as robust against wear and corrosion resistance as plated coatings, and is typically no thicker than 2.5 micrometres (0.0001 inches). Youre just using stump remover to do it. Heat the area you'd like to drill just until it starts to glow red, then allow it to cool slowly. My first time wasnt a stunning success. OK, Buffing wheels, which Im making their own break-out response from the blueing salt issue: Buffing wheels are useful things in a gun shop. How to remove discoloration from heat? - Forums - Miller Welding I don't understand why you are submerging it in oil? This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. How do I harden a steel hammer so that is lasts longer and is more durable? No. Even a fingerprint will affect the consistency of the colour. Now you slide the cold rod in, and the plate cools, gripping the rod. Thanks for always being so willing to share, Sir. I used Brownells Plum Brown, a product that requires that the barrel be heated to 275 degrees to activate the reaction. Blow torches only heat a small concentrated area. highfour, case hardening is a bit different from what you describe.. Usually, the steel needs some time in a medium that will allow carbon to penetrate the surface, and we are talking 15 minutes to several hours. Nowadays, even mild steel does have a certain amount of carbon in the alloy, which can explain your observations, if you google "super quench," you should find a waterbased quench that is rumoured to do the same, but in my humble opinion, water can do just that as well. Ok you gotta help me out herewhen I was studying mechanical engineering a good few years back a project I done involved using a compression fit of 1/4" thick plate steel into 1" thick steel rod, both mild steel. Let them cool down as you take a closer look at the bluing effect. Dont. 2 years ago { These processes were later abandoned by major firearm manufacturers as it often took parts days to finish completely, and was very labor-intensive. DG should receive a stipend for his valuable contributions to TTAG. They have their place, but doing a whole gun with them isnt that place. Dont touch the metal with your bare hands since it could cause severe burns. on Introduction. I found through my bluing adventure that different oils do act slighty different but ultimately everything I've used has done the job. Referring to the post that started all of this; Dyspeptic Gunsmith says: Go on and start bluing! Hang the trigger group again, re-stock and you should be done. Theres a reason I didnt pursue a career in chemistry. The potassium nitrate will liquefy at around this temperature and blue your items at a relatively quick speed. 2023 All Rights Reserved by Shooting Mystery. Hi SteelJunkee Method is as follows: Fit rod into drill and set at constant speed Clean rods with acetone on clean rag Use butane and propane mix blow torch to achieve colour range Quench in water Dry The weird thing is that they look great for around 4-5 days then deteriorate. It repeats the process adn by the time the head moves on to the next station all the parts are seated presumably for the life of the head. I've never done anything like this but want to try. 99. Knowledge is the power and fear is the opposite of power it cripples the mind and the body and almost always guarantee's a poor decision will be made. Usually they would pack the parts in crucibles and surround them with leather, wood, coal,bone etcThey would heat them up to 1200F to 1500F and hold them at this temp. Notify me of follow-up comments by email. Cold blueing solutions usually just dont wear well. No one can even tell you what the heat treat is on a 1895 Mauser for instance yet we do not wet ourselves before we shoot one! I believe the change of color is due to a growing thickness of an oxide layer. Haha. Theres a reason why I buy up clapped-out guns and stuff where people look at me with a WTF?! Mea maxima culpa - and I left my comment up rather than delete the thread (for now) just so I could reply and admit the My Dumb, rather than skulk away cleanly >;-), Question Reply These include hot bluing, cold bluing, niter bluing, and so on. Then wipe off all excess oil and look at your beautiful finished object! I have cut and polished 4 pieces of mild steel to demonstrate different colour stages. Heat the gun parts. Hes claiming that method is more durable than Blue alone. Ventilation is important. The melting point for KNO3 is 633F. To harden steel, start by heating the metal directly with a blow torch until it turns a cherry red color. At least one of the cold bluing solutions contains selenium dioxide. Are you sure you want to heat the steel to 700F in that early step? Bluing is a passivation process in which steel is partially protected against rust using a black oxide coating. Bluing Stainless Steel: What You Can and Cant Do - Forging World Always wear goggles and gloves when operating a propane blow torch. The steel was mild steel and had very little carbon content. Thermometers and stirring tools are also needed, as well as something to heat up the tanks. Share it with us! http://www.lowes.com/pd_188198-316-HG-66420_0__?productId=4764059 How to Blue (Bluing) Steel Using Oven Or Torch and Oil Method OOMAN 2.28K subscribers Subscribe 872 112K views 4 years ago My apologies for the background First, let us go through a couple of bluing concepts that you have to know in order to achieve the desired result. "height": "800", Gas burners can usually do the job for this. Youre a gunsmith who has a lot of nice guns! "@type": "ImageObject", I guess Ill have to just be happy drying toilet paper. WD-40, as mentioned earlier, is a water-displacing oil compound not a penetrating lube, and for preventing rust, WD-40 actually works pretty well, but it doesnt last like cosmoline or waxy oils used for long-term rust prevention. "datePublished": "2022-03-27", Heat the gun parts. The differing rate of cooling for each area produced a different color creating that rainbow effect. In the hot salt process, you will need, oh, four to six tanks, only one of which will be the heated blueing salts. Then you sight down the barrel and you see dips and waves in the barrel profile. Glad that there are folks like you around. Right now I'm working on excavator replacement pins! It also looks good on AK type weapons of which I have three to park. "@context": "http://schema.org/", That said, heres the truth: The best blueing you can have on a gun is simple, safe to do, but takes a long time. ALL RIGHTS RESERVED. 500F-600F is often all that is needed and the parts can be done over and over again you just have to clean between each attempt. It is slightly caustic, so be careful you dont leave it on the gun for long. In place of using a hot bath (although at a lower temperature) chemically induced method, it is possible through controlling the temperature to heat steel precisely such as to cause the formation of black oxide selectively over the red oxide. To remove pitting and keep the barrel profile intact requires skill with a file, and that requires hands-on training. However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using Hydrochloric Acid). When Im polishing on barrels, I polish lengthwise. Excellent info. You work on nice guns! Hopefully these concepts suggest caution and diligence for what you are doing. Robert Farago is the former publisher of The Truth About Guns (TTAG). (And taking, out of *your* hide). It's easy to get it too hot, too quickly - especially with an O/A or oxy-propane torch. For more information on using a blowtorch and protecting the steel, scroll down! It greatly helped me to learn how to blue a gun perfectly at home. Bluing (steel) - Wikipedia Please note: As you are working with heat, please be smart, use your common sense, do the bluing process in a well ventilated area and keep a wet towel to hand. Find many great new & used options and get the best deals for 13 in 1 Metal Shell Welding Torch Nozzle Tip Cleaner For Welder Soldering at the best online prices at eBay! [ Mea culpa. Todos los derechos reservados. However, the chemicals from the bluing process can accomplish uneven staining on aluminium and polymer parts. COPYRIGHT 2021, THETRUTHABOUTGUNS.COM. Cold blues will This method was adopted by larger firearm companies for large scale, more economical bluing. I rarely use them. An ideal temperature is 180 degrees Fahrenheit but it also depends on the manual. They should start gassing up approximately 2 to 3 minutes after exposure. -A heat source. Friction, as from holster wear, quickly removes cold bluing, and also removes hot bluing, rust, or fume bluing over long periods of use. Bluing - Finishes for Metal - I Forge Iron Because so many people are trying to do this sort of thing on the cheap, thats when I start thundering in my warnings about safety. Alternatively, you can press the pad of steel wool between your hands over the container of acetone, and then put it on some paper towels to dry.

Hyacinth Macaw For Sale Washington State, Sundance Canyon Academy, Mike Mendenhall Spanish Fork Mayor, Colter Bay Employee Housing, 2015 Nissan Altima Brake Torque Specs, Articles B