The differing rate of cooling for each area produced a different color creating that rainbow effect. 2. For the process your metal should be nicely polished for the best results.The more shinier the polish the more your end result will glow. I can' After that, slowly and steadily stir the solution in, Step 2: Process the components of the gun, Wait for 10 15 minutes and then take out the components. There's also blued hardware available, like nuts, bolts, screws, and hinges. 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. For most of the time, guns that utilize carbon steel components are the prime candidates for bluing but its totally possible to color stainless steel blue as well. Fill a heat-safe container with water or oil deep enough to submerge your steel. 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. Todos los derechos reservados. Heat the area with a torch until it stops sweating. Every true outdoorsmans dream! 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. Remove any previous finish. Its a pretty straightforward process. The actual temperature of the steel depends on the carbon content inside. "https://www.facebook.com/Shooting-Mystery-110244180901951", The usual mistake on buffing wheels is using too coarse a compound, and then the wheel becomes quite aggressive in removing material. There wasnt a whole lot of pain just yet until my buddy took the safety bottle of vinegar solution used to neutralize the alkaline NaOH salts, and then the pain was there. This is not advisable. This article was co-authored by wikiHow staff writer. It is vastly appreciated even by those of us who will probably never use it. That doesnt happen easily or by accident. First, let us go through a couple of bluing concepts that you have to know in order to achieve the desired result. Posted December 21, 2009. 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. 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. With a simple heating and quenching process, you can make your steel last for much longer! Should something happen, seek medical help right away. And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. When the first patch gets really funky, then drop that in your plastic garbage container (remember, these patches have been soaked in acid solutions! "name": "Shooting Mystery", It does provide good rust resistance, which is improved with oil. 2. That surface rust on the barrel could be polished off easily. Cold blues will Make sure the piece is chemically clean, sandblasting followed by power wire brushing is good then stop heating when you hit purple because the heat will travel. (Its Crystalline Potassium Nitrate 100%) $6.18 Woodworkers doing furniture finishing will use 000 and 0000 wool, and they hate oil on their wool for rubbing down oil finishes. Last Updated: May 13, 2022 You MUST plug your barrels, gas cylinders, remove your pistons, etc. WebStep 1: Preparing Your Materials You will need: -2x containers (one of them preferably being metal for the oil) -oil -unleaded petrol/Acetone/Terpentine/Rubbing alcohol or any good Theyll usually go in from the right, and be drifted out from the left (ie, drifting them from left to the right as the muzzle is pointed away from you). If you need to use a blow torch, focus the flame tip on the area you want hardened. Blacksmith products to this day may occasionally be found made from blued steel by traditional craftsmen in cultures and segments of society who use that technology either by necessity or choice.[5]. 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. For this reason, it is considered not to add any appreciable thickness to precisely-machined gun parts. So As one newish to refined firearms ownership, what is the best way to store and protect a pistol or rifle from rusting, especially in areas like Oregon or Washington, Silicon socks, or ? This is all from memory so I might have left some stuff out. Its the corrosive gift that just keeps on giving. He started the site to explore the ethics, morality, business, politics, culture, technology, practice, strategy, dangers and fun of guns. Dont pour water in to your bath! When youre using hot blueing salts, youd better be on top of your game, or you can seriously injure yourself. Just dont do it. Get it Feb 25 - 27. Stand on end over some paper towels to drain. 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. Use your torch to bring up 1. polish it very well 2. clean very well 3. quick dip in dilute FeCl (4:1) is what I use 4. rinse in cold running water and pat They should send you a stipend for your time. } The parts are then oiled and allowed to stand overnight. The color is oxide, but I believe you can scrape it off. Besides those, you must also have water displacing oil and cleaning solution (Dicro-Clean 909). Note that it has to be a different tank from the one you used for Step 2. Thank you all who had a part in the production of this important information! 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 All those materials the leather and bone the coal where sources of carbon and other trace elements. You can blue heat-treated parts with no ill effects. This method must not be used on critically heat-treated parts such as receivers, slides or springs. "Bluing" is the process of oxidizing steel to create a durable, corrosion-resistant layer. 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. just fyi, the old school method of case hardening steel is to get the piece so hot that a magnet will no longet stick to it and quickly quench it in used motor oil. 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. This is a great source that you can learn lots of information from and I'll advise it to to a handfuls of others. Gee, Im thinkin Duro or cero coat maybe even Krylon might be a good enough.. "sameAs": You should put the brass drift (which you can make out of a piece of brass rod about 1/4 in diameter) on the sight base, and then start tapping the end of the drift with a small hammer. For this Instructable I'm using thread cutting oil. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. Bluing involves an electrochemical conversion coating resulting from an oxidizing chemical reaction with iron on the surface selectively forming magnetite (Fe3O4), the black oxide of iron. It's worth noting that there can be some additives in motor oil that release hydrocarbons when burnt which is a known carcinogens to the body (in other words: Bad Stuff!). Then, use a pair of tongs to carry the steel to a container filled with water or vegetable, and submerge the hot metal in the liquid. ALL RIGHTS RESERVED. This is as deadly as the lye-based hot salts, but more for the temperature of a large batch of salts. February 20, 2016 at 16:12. Bluing is also used for providing coloring for steel parts of fine clocks and other fine metalwork. Its nice when something can be re-used a time or two, especially when used in diversified ways. $3.59. 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? Holy crap, did that reaction hurt like hell. Do NOT wipe/touch your metal with anything after degreasing as the whole purpose of cleaning was then for nothing. I think I was drinking heavily (and likely doing stupid things in my shop with high heat and flammables at the time, possibly while juggling chainsaws) at the time I made that comment - without reading carefully. Great column, and thanks for all the responses to various questions and comments. Referring to the post that started all of this; Dyspeptic Gunsmith says: Even a fingerprint will affect the consistency of the colour. Keep posting like this. Instead of applying the acid solution directly to the metal parts, the parts are placed in a sealed cabinet with a moisture source, a container of nitric acid and a container of hydrochloric acid. To shrink, I assumed you heated the steel plate only, to expand the hole in it. Ships from and sold by Direct-Wholesale. This finish allows them to be stored in high-moisture conditions, like sports bags, without rusting. 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. Hot blueing salts attack soft solders on guns, so it isnt to be done on old shotguns and some older rifles. What I forgot to mention in all of this is a detail that seems mundane, but it critically important: Wear cotton gloves. BUT like so many power tools on guns, it is possible to create expensive screw-ups to fix on guns with power tools, and buffing wheels are no exception. Red rust is Fe2O3, and is incomplete rust it will continue allowing the surface to corrode over time hence the oil or wax. It is caused by a layer of oxide that forms when the steel is heated. Dont drop or try to bend the steel once its removed. The thickness of the oxide is a function of how hot you heat the steel (The color is due to interference of light reflecting from the surface of the oxide coating, and light reflecting from the oxide-steel interface). 2023 All Rights Reserved by Shooting Mystery. My dad keeps his in a big safe with large desiccant packs that he threw in there. In comparison, rust, the red oxide of iron (Fe2O3), undergoes an extremely large volume change upon hydration; as a result, the oxide easily flakes off, causing the typical reddish rusting away of iron. Hopefully these concepts suggest caution and diligence for what you are doing. SO, DG; unless I missed it, I am assuming the torch is used separate from heating the tank/ container with the boiling solution. If you do not get crazy and over heat the steel there is no reason to be fearful of the process. The mixed fumes of the acids produce a uniform rust on the surface of the parts (inside and out) in about 12 hours. Water is great for rapidly quenching the hot metal, but it could cause thin steel to distort or crack. There are many simple ways to achieve good bluing. How to Blue Bluing Steel Using Oven Or Torch and Oil Method. "https://www.reddit.com/user/theshootingmystery" Spray down the whole barreled action with copious amounts of WD-40, inside and out. To temper the steel so it isn't brittle, place it in an oven heated to 375 F for 3 hours, and then it let it cool overnight. Technically speaking, bluing is more or less a conversion of red iron oxide (Fe2O3) to black iron oxide (Fe3O4). However, due to the unique qualities of stainless steel, you cant simply blue the material however way you like. For the chemical, the bluing solution should be either Oxynate No. When youre done, attach the thermometer to the tank and fire up the burner. Turn the heat on and give a good regular stirring until it gets very hot and starts to steam. Ill be saving this for the future. I guess Ill have to just be happy drying toilet paper. Then remove it from the degreaser, don't be tempted to wipe it off with anything. I agree used oil works better and adding some copper and graphite seems to deepen the color and add more purple or plum to it. Different colors can be achieved through variations of this method including quenching in oil instead of water. I wasnt planning on doing it for a few months. The easier of the two methods, hot bluing only requires some degreasing agent, a heating apparatus (a blow torch is perfect for this), and any kind of oil. Try it on some unimportant pieces first. Theres a reason I didnt pursue a career in chemistry. Sometimes at this point, I come just a fraction away from the heat to go through colours a bit slower. 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 had to sand and restain the stock, and sanded the barrel from 120 down to 400 grit the pitting was so bad. You then oil or wax over the finish when youre done. Wait for a day to let the bluing properly cure before you do anything else to it. 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. If you want to blue something fast I have a cheap hot blue method: Lowes stump remover: My apologies for the background noise in the first half of the video We had compressors running where I had to shoot this This video shows how to blue steel parts using an oven or torch and quenching in oil This method is not the professional method using bluing salts but can be done in your home with a torch or if you have access to a high temperature oven This method will provide your parts some protection from corrosion and show how to achieve different colors in the steel by varying temperatures I am not a professional so please spare me the that s not hot bluing and other criticisms If you don t like it turn it off Hope this comes in handy for someone, How to take apart disassemble and put together assemble a 1911 pistol 1st method, Stevens 20 Gauge Break Action Shotgun Project - Part 4 Cold Bluing with Brownells Oxpho-Blue Creme, Van's Instant Gun Bluing - Removing Gun Rust, Cold bluing Steel blackening How to use Tifoo Black Devil - burnishing steel, Gun Bluing - Colt Official Police 38 Special, Vintage Screwdriver Cold Bluing Br nierung Restore No 2, Slow rust bluing O1 knife blades part two, Easy and Fast bluing touch up Presto Gun Blue Pen, DuraBlue Spray-on Bluing Aerosol Application Process Polished Version, Axe Restoration Part Two Bluing With Birchwood Casey Superblue, Birchwood Casey Aluminum Black Super Blue and Metal Work on a Tanfoglio TA22S, Gun Bluing using cold blue and heat Weihrauch HW35 E Restoration, Perma Blue Gun Blue Paste Birchwood Casey. Whats the difference between Brown Express and Blue Express? Remove the bolt & trigger group this might require a pin punch on some guns to pull the trigger group.From what little I can see in the picture here . Before operating your torch, read all instructions so you know how to handle it safely. occasionally I'll buff it afterwards. This will keep the bluing from adhering to the sharpened edge. Premium fencing blades are often offered with a blued finish. COPYRIGHT 2021, THETRUTHABOUTGUNS.COM. Ferrari installs valve seats in their aluminum cylinder heads via robot. You can experiment ultimately what oils to use. Still, you will find that cold blues dont last. Hes claiming that method is more durable than Blue alone. Stainless steel can only tolerate hot bluing and a limited amount of chemicals. Use a smaller toaster oven if your piece of steel fits inside. Hot blueing is a good process, especially if you have a lot of iron to shove through the blueing process quickly. Heat source You will require at least one burner for bluing salts and two hot water burners.
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