Use a smaller toaster oven if your piece of steel fits inside. The book claims they used wait for it "boiling gasoline" not making this up to clean them. Now, using the information above, you should have little problem bluing your firearms on your own. You can also heat the oil to create different effects. 'Browning' is controlled red rust Fe2O3, and is also known as 'pluming' or 'plum brown'. "height": "800", His enthusiasm for handling firearms and hunting gear inspired him to create the Shooting Mystery blog. Heat the Steel. If your barrel has heavier pitting, now were into filing to remove pitting, and thats something I cant teach people in mere text. Use a backing block of wood or even a Pink Pearl rubber eraser. This finish allows them to be stored in high-moisture conditions, like sports bags, without rusting. However, oil may spill and create a fire hazard if the steel is put into the oil too quickly. Itll take perhaps 20 minutes to really dry down. I wasnt planning on doing it for a few months. Its for mild steel, which must be greased, oiled or otherwise coated with something to stop it from rusting almost immediately. Ships from and sold by Direct-Wholesale. Is the torch used to heat metal ..ONLY.with Cold bluing? This crucible was heated to 730C (1,350F) for up to 6hours (the longer the heat was applied the thicker the case hardening). Both refer to the same chemical process for providing true gun bluing.[1]. At 700, you start losing your blues and the steel starts becoming a wispy silvery-blue, not a dark brilliant blue. Robert Farago is the former publisher of The Truth About Guns (TTAG). 4 years ago You might be able to start at 320 grit. The color is not oxides, when steel is heated at relatively low heats (300-600 degrees Fahrenheit) it changes colors from light yellow to a deep blue, after 600 it turns back to a steel color. "https://theshootingmystery.tumblr.com/", It is slightly caustic, so be careful you dont leave it on the gun for long. Safety notes: Dont use an aluminum pan. If you havent done it before, wait until I mention some items about it. Higher carbon contents will take longer to heat. Bluing is also used in seasoning cast-iron cookware, to render it relatively rust-proof and non-stick. However, there are certain characteristics differences between the materials so knowing clearly how to blue stainless steel is really important. This article has been viewed 914,567 times. Im asking because theres a guy on YouTube recommending Brown Express first, then several layers of Blue over that. Friction, as from holster wear, quickly removes cold bluing, and also removes hot bluing, rust, or fume bluing over long periods of use. Spray down the whole barreled action with copious amounts of WD-40, inside and out. When the first patch gets really funky, then drop that in your plastic garbage container (remember, these patches have been soaked in acid solutions! 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. With. I am simply trying to learn anything and everything that there is to know about it. Once you see it turn golden, the process has started and colours will change fairly quickly! However, the chemicals from the bluing process can accomplish uneven staining on aluminium and polymer parts. Referring to the post that started all of this; Dyspeptic Gunsmith says: 3 years ago The steel was mild steel and had very little carbon content. Degrease and heat the items to be blued in a steel pan to about 700F. Also, the results you indicate are typical of still having some oil on the gun. Also: Do not allow the solution to run, drip or sag. Even a fingerprint will affect the consistency of the colour. Another good test for determining when the steel is ready is seeing if a magnet sticks to its surface. I can see my wife walking in and shaking her headabout as vigorously as when I asked if I could use the dishwasher to clean some tools. For the final step, we let the components cool down in water displacing oil. The torch comes in when you first apply the Express Blue. Dont just leave them on a surface that could corrode or burn), get a new patch into the hemostats, soak, wring out, and keep going. wikiHow marks an article as reader-approved once it receives enough positive feedback. Vegetable oil has a higher boiling point, so the hot steel will take longer to cool and reduce the chance of it cracking. Always back your paper when youre polishing over edges and up against features. Where/how did you think I got to the point I could make nice guns? To heat this, I use a Coleman camp stove and a 15# jug of LPG gas. An iron wire, stainless dipper, and part basket are required to handle the guns components and adjust the bluing solution as well. Picture Information. Its nice when something can be re-used a time or two, especially when used in diversified ways. I don't understand why you are submerging it in oil? For hazzalandy: carbon content has nothing to do with the color process, it is only the temperature you heat to, and to a lesser extent, the time spent hot. Youll get a dark spot right there. Free shipping. The process was to coat the gun parts in an acid solution, let the parts rust uniformly, then immerse the parts in boiling water to convert the red oxide Fe2O3 to black oxide Fe3O4, which forms a more protective, stable coating than the red oxide; the boiling water also removes any remaining residue from the applied acid solution (often nitric acid and hydrochloric acid diluted in water). You can not do this method with Aluminium because it won't reach the temperatures required for bluing, it will just melt. I used Express Blue #1 on lots of guns, where I want something less labor intensive than slow rust blueing (which I wont describe here): most steel wool isnt oil-free. "url": "https://shootingmystery.com/wp-content/uploads/2017/01/Shootinglogo.png" wikiHow is where trusted research and expert knowledge come together. It provides the stainless steel surface with a layer of protection, giving rust and corrosion resistance while reducing potential glare as well. Thanks a lot for sharing. Now you slide the cold rod in, and the plate cools, gripping the rod. Also remember, by adjusting the heat you can get whatever color you want. "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). 2023 All Rights Reserved by Shooting Mystery. Youll want to clamp on the barrel directly under the sight youre about to drift out. They should start gassing up approximately 2 to 3 minutes after exposure. Do NOT wipe/touch your metal with anything after degreasing as the whole purpose of cleaning was then for nothing. "@context": "http://schema.org/", % of people told us that this article helped them. The downsides are: the safety issue, which I laid out above, and which youve made clear. Safety is the number one priority so protect your body as much as possible. You heat the outside member only when you do a shrink fit.). Alternatively. 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. Rust bluing was developed between hot and cold bluing processes, and was originally used by gunsmiths in the 19th century to blue firearms prior to the development of hot bluing processes. In my case I drilled/threaded the metal piece and made a holder with a threaded end. Any more advice is welcome SteelJunkee Joined May 6, 2018 Messages 891 Whats the difference between Brown Express and Blue Express? It cannot rust any further. I'm a professional knifemaker and use many very high-temp methods including quenching 1,600F steel in pre-heated oil - I know what I'm talking about, 'cause I still have 10 fingers and my eyesight. Steps to Hot Blue Steel with a Torch When the liquid stops bubbling, remove the metal from the container and wipe off any excess liquid. Now securely hold your piece with whatever you have chosen. Central Texas. This article was co-authored by wikiHow staff writer, Hunter Rising. gas coverage is another big one. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. 2 years ago I wouldn't recommend either. Never know when it will come in handy. Mea culpa. I can't stress how important the degreasing step is! If you cant, just get them out of the case and allow air to circulate around them. You have to apply the bluing fluid. Next you hold it in front of your heat source until a blue oxide layer covers the whole blade edge. Ill detail why. Stand on end over some paper towels to drain. 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? It's easy to get it too hot, too quickly - especially with an O/A or oxy-propane torch. By using our site, you agree to our. It will instantly vaporize into steam and splash all over you. }, Brand: Logix. Ive used this method in a pinch to make a tap from a cheap mild steel bolt to chase out galled female threads. The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. You then oil or wax over the finish when youre done. In fact most guides no matter their material cast iron to bronze and often bearing races are installed the same way. The only way to do that is to heat it until the metal de-magnetises, quench it again, and then temper to the desired hardness. . 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. Treating with an oiled coating enhances the protection offered by the bluing. Slow rust blueing can take a week or more to accomplish, but it is a durable blue job like no other. This will remove all the traces of the bluing solution and other chemicals. Fume bluing is another process similar to rust bluing. I wish this article had come out sooner, since I did not know that 0000 steel wool may have oil in it. http://cdn.spectrumbrands.com/~/media/Spectracide/Files/MSDS/SpectracideStumpRemoverGranulesSDSApr15.ashx. I have also had good results with 5w/30 motor oil, I've also used two-stroke oil with good results. Craig, torch bluing is a real thing that has been use a lot in the custom gun world, mostly for screw heads but even for complete muzzle loader creations ( the vendor will be quite proud of his work it seems as cost increases considerably to a finished item). What I forgot to mention in all of this is a detail that seems mundane, but it critically important: Wear cotton gloves. Glad that there are folks like you around. Hopefully these concepts suggest caution and diligence for what you are doing. The name of the process actually comes from the blue-black appearance of the black iron oxide. The rust then turns to black-blue Fe3O4. Hardening will cause it to be more brittle, which could cause the hammer to chip and cause injury. 2. On another thread, we can go into nitre blueing, which is basically heating pins/screws/bits/bobs to 600F in a molten salt bath. RF: Expect a write-up from me on Rust blueing and parkerizing in the next couple of weeks. Most cold blueing agents contain some selenium dioxide in them to enable to them to react at room temps. Christopher Graham writes all the content and reviews on this site with the help of his team of hunters and shooters. Check out the video:https://hackaday.io/project/21947-makers-vise/log/60914-coloring-steel-with-magnetism. Note: I know a plastic container is pictured but always use a metal one! Polish to at least 400 grit. "sameAs": Get it Feb 25 - 27. Then the crucibles would be removed from the furnace and placed over boiling hot water and air would be bubbled through the water and the parts would be dropped into the water. I dont have that much blueing to do in my shop, so I dont use hot salts. I learned something slightly different than what you are teaching and that is I am willing to pay people like you to do this kind of stuff for me. Step 3: Suspend the components in the bluing solution tank, However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using, Step 4: Rinse the components in a cold water tank then transfer them to a hot one, Step 5: Submerge the components in a tank filled with water displacing oil, Address: 4455 Camp Bowie Blvd, Ste 114 #852, Fort Worth, TX 76107. There can be different layers you have to apply. My current rifle builds are going to be parkerzied. Thanks, 8 years ago occasionally I'll buff it afterwards. (You say the rod was heated, but it couldn't have been, as it was on the inside. Wipe them down with WD-40 on a regular basis. And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. Should something happen, seek medical help right away. Initially case hardening was used but did not offer any aesthetics. Heat the gun parts. Woodworkers doing furniture finishing will use 000 and 0000 wool, and they hate oil on their wool for rubbing down oil finishes. Repeat 3 times. Once the solution reaches its boiling point, turn down the burner to about one-third of the boiling temperature and let it stay there. The use of stainless steel alloy varies a lot from one manufacturer to the other and thats why the bluing effect wont always be consistent. A Pocket Sundial From a Broken Pocket Watch! Just dont. In this case cooking oil, rather than gun oil, acts to displace water and prevent rust. You should note that the blue layer is rather delicate so dont treat it roughly. But since this was my first project, with an inexpensive kit as a learning tool, and as I intend to do this again with a much more expensive kit, my trials and errors and your voice of experience will be very useful the next time around. Shooting Mystery is reader-supported. Soft, low-carbon steel was used, but strong materials were needed for the receivers of firearms. 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. 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. I have at least three cold blue solutions in my shop including Oxpho-blue, 44-40 and others. Fill a heat-safe container with water or oil deep enough to submerge your steel. Prepare the components of the metal surface before you attempt to blue using your tools. WebHeat the blade for 15 to 20 minutes in an oven set on 325 Fahrenheit if the handle is metal. You can then u. se a soft brush to gently remove all the residue of the cleaning solution on the components. This process is also the only process safely used to re-blue vintage shotguns. Use hemostats to hold a cleaning patch wetted with the solution and apply in nice, long, even strokes. Then remove it from the degreaser, don't be tempted to wipe it off with anything. I tried heating the barrel in sections (as Brownells says is ok) but did not get a very good result, being unable to get a uniform heat in any =thing approaching more than a few inches at a time. Larger flames produce less heat while smaller flames produce a higher heat. Dang it all. Its durable and wears well. Reply As mentioned, cold bluing can be done at room temperature with decent results.

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