bluing steel with a torch
(You say the rod was heated, but it couldn't have been, as it was on the inside. If I remember right they then heated them up a bit and applied fish oil orignal and I think latter switching to linseed oil to protect the finish and give it that wet look. Thanks to all authors for creating a page that has been read 914,567 times. 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. Dont leave cold blue solutions around anywhere pets or kids could get at them. Fortunately, this is easily had at any hardware store: WD-40 is a water displacing product, not a lubricant (contrary to widespread advertising). 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 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. 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 Oxides come after its been heated to a red heat and cooled. It is slow rust blueing. I have done a cold blue on a very rusted .22 for a friend. Not only does it give you an alchemical feeling of satisfactionbut it also gives the metal a finish to stop corrosion. When youre done and have neutralized & washed off the Express Blue #1 solution, you then should spray down the barrel with water-displacing oil. So you said the polishing is key for the coloring process. When youre using hot blueing salts, youd better be on top of your game, or you can seriously injure yourself. 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. it takes a long time to heat up a long (ie barreled action length) tank that is, oh, three barrels wide. I have at least three cold blue solutions in my shop including Oxpho-blue, 44-40 and others. The potassium nitrate will liquefy at around this temperature and blue your items at a relatively quick speed. Besides those, you must also have water displacing oil and cleaning solution (Dicro-Clean 909). http://cdn.spectrumbrands.com/~/media/Spectracide/Files/MSDS/SpectracideStumpRemoverGranulesSDSApr15.ashx. This will remove all the traces of the bluing solution and other chemicals. fascinated with blacksmithing, but have not had an income to even get it started. Pour in For this reason, it is considered not to add any appreciable thickness to precisely-machined gun parts. Note: I know a plastic container is pictured but always use a metal one! The cotton gloves insulate your fingers from the heated barrel, and they prevent oils from your skin from getting on the raw steel. It greatly helped me to learn how to blue a gun perfectly at home. "author": "Christopher Graham", Wear disposable nitrile gloves, work in adequate ventilation, bag and dispose of all rags/towels used in the process in their own bags, and quickly. Use ice cubes. To obtain oil-free steel wool, get some acetone in a container (say, an old, clean yogurt container you were going to throw away anyway). Reply Youll want to clamp on the barrel directly under the sight youre about to drift out. Remove any previous finish. Drift the sights back in from the right side of the barrel. 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 ? It's easy to get it too hot, too quickly - especially with an O/A or oxy-propane torch. One of the reasons I hand-polish up to 600 and buff only above that is that when you see one of my barrels (by holding it up to a light source, and sighting down the barrel from the muzzle at your eye to the breech out at arms length), you see no dips, waves, ripples, etc. Ill go into parkerization later this week. Did you make this project? % of people told us that this article helped them. All About Bluing Steel Stainless Steel Necessary Gears and Tools Procedure Step 1: Ready the bluing tank Step 2: Process the components of the gun Step 3: Suspend At least one of the cold bluing solutions contains selenium dioxide. Thank you all who had a part in the production of this important information! 3D Printed Futuristic Space Age Wall Clock. I wish this article had come out sooner, since I did not know that 0000 steel wool may have oil in it. If youre using acetone to de-oil, dont be afraid to do it more than once. Above you can see some example pictures of the colour shades that can be achieved with this techniques. It had been thoroughly degreased before my first attempt, but in trying to repair a poor result, I apparently contaminated it a bit. Hunter Rising is a wikiHow Staff Writer based in Los Angeles. Heat the gun parts. A couple bottles of aged bourbon minimum. Excellent info. Fe3O4 requires chemicals and/or heat to push the iron to full oxidation. 4 years ago The practice of bluing steel takes time and an exquisite eye for detail. Once the steel is clean, you can begin heating it up. on Introduction. I want to add rainbow color to safety razor blades that would be used again, how can I do this? It can soften up some paints and plastics. It is a difficult product to apply evenly, offers minimal protection and is generally best used for small fast repair jobs and touch-ups.[2][3]. The object on the left is a custom mild steel potentiometer knob! Heres instructions from Mark Lee Supplies on using their Express Blue #1. Could I use stainless steel earrings that I have got? Steps to Hot Blue Steel with a Torch Is the torch used to heat metal ..ONLY.with Cold bluing? The "hot" process is an alkali salt solution using potassium nitrite or sodium nitrate and sodium hydroxide, referred to as "traditional caustic black", that is typically done at an elevated temperature, 135 to 155C (275 to 311F). "https://www.reddit.com/user/theshootingmystery" The actual temperature of the steel depends on the carbon content inside. This method must not be used on critically heat-treated parts such as receivers, slides or springs. I didnt drop outta my mommas womb being able to do this stuff. the cost of the burners or heaters to heat up all these tanks really only practical if you have natural gas available COPYRIGHT 2021, THETRUTHABOUTGUNS.COM. Heat the Steel. | Alpha Detroit", "NRA Family | Gun Manufacturing: Browning vs. Bluing", http://mypeculiarnature.blogspot.com/2014/08/quick-rust-bluing-back-in-black.html, "Radio Kits and Designs for Old and New Styles", "Coating, Oxide, Black, for Ferrous Metals (MIL-DTL-13924D)", "Phosphate and black oxide coating of ferrous metals (MIL-HDBK-205A)", https://en.wikipedia.org/w/index.php?title=Bluing_(steel)&oldid=1142351288, Short description is different from Wikidata, Articles that may contain original research from October 2020, All articles that may contain original research, Articles needing additional references from October 2020, All articles needing additional references, Articles lacking in-text citations from September 2014, Articles with multiple maintenance issues, Articles with dead external links from July 2017, Articles with permanently dead external links, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 1 March 2023, at 22:58. My first time wasnt a stunning success. This is a great source that you can learn lots of information from and I'll advise it to to a handfuls of others. it washes off with water. The colours range through straw, gold, brown, purple, blue, teal, then black. For this Instructable I'm using thread cutting oil. An iron wire, stainless dipper, and part basket are required to handle the guns components and adjust the bluing solution as well. Blow torches only heat a small concentrated area. wikiHow is where trusted research and expert knowledge come together. "Bluing" is the process of oxidizing steel to create a durable, corrosion-resistant layer. Degrease and heat the items to be blued in a steel pan to about 700F. 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. "logo": { Dont drop or try to bend the steel once its removed. ", Larger flames produce less heat while smaller flames produce a higher heat. Hot blueing salts attack soft solders on guns, so it isnt to be done on old shotguns and some older rifles. Fill a heat-safe container with water or oil deep enough to submerge your steel. Enjoy! It takes practice. Any more advice is welcome SteelJunkee Joined May 6, 2018 Messages 891 Did you ever find out what oil they were using? Most waters in the Rockies clear out to the west coast will have high(er) dissolved solids in them. This article was very, "I've been working with steel since I was a child, and reviewing these proper methods and skills makes my projects, "It surely educated me on several points. That means 50-60 revolutions to make a foot. Add in the 250F+ temperatures of the salts when they hit your skin, and youre both burned thermally and chemically in seconds. It costs an arm and a leg, and you can buy 0000 so cheaply at Wally World that it makes the acetone method worth your while. This item: Special Blue Full Metal Butane Torch (Gold) - Refillable Flame Lighter- Culinary Torch - Welding Torch - Adjustable Dual Flame for Desserts, Creme Brulee, BBQ and Baking. } You can then u. se a soft brush to gently remove all the residue of the cleaning solution on the components. 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. Are you sure you want to heat the steel to 700F in that early step? You should note that the blue layer is rather delicate so dont treat it roughly. ALL RIGHTS RESERVED. Still, you will find that cold blues dont last. How do I harden a steel hammer so that is lasts longer and is more durable? 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. Participated in the Explore Science Contest. 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! The salts here will be slightly less corrosive (ie, just the pure KNO3, no lye), but at 600F, you have a big physical risk right in front of you. 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. Different colors can be achieved through variations of this method including quenching in oil instead of water. Add the two together and you have what is akin to rocket fuel in your face a way of oxidizing almost any organic material with insufficient water for cooling into a furious flame. : Make sure it is made from Mild Steel or Titanium. Most knives, rifle receivers and barrels are heated to at least 1200F and cooled and drawn at 490F-700F. I really appreciate you taking the time to share it DG. If you are new to the subject and are in need of detailed instructions, then youve come to the right place. Even a fingerprint will affect the consistency of the colour. If you havent done it before, wait until I mention some items about it. Contemporary heat-treatable steels did not exist or were in their infancy. It is one smoooooth profile, from one end to the other. When Im polishing on barrels, I polish lengthwise. While I am certain that I could do it myself, you already have all the bits and parts and stuff so it is worth my dollars to buy a gunsmiths time to have this done for me. 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The differential cooling causes patterns of colors to appear as well as hardening the part. Vegetable oil has a higher boiling point, so the hot steel will take longer to cool and reduce the chance of it cracking. This step should be done before heating the steel, as the steel should be quenched immediately after removing from heat. 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 There are many methods you can use to blue the steel. Use it to try out great new products and services nationwide without paying full pricewine, food delivery, clothing and more. Im asking because theres a guy on YouTube recommending Brown Express first, then several layers of Blue over that. Where/how did you think I got to the point I could make nice guns? 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. 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. Also Dont get the 275-300F bath on you. Thanks for always being so willing to share, Sir. Again, dont mess around with these chemicals and only handle them with extreme attention. 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. Here is a video by Clevinger Customs illustrating it: I use the Brownells nitre blueing salts, which are a combination of sodium nitrite, sodium nitrate, and potassium nitrate. You want to be in the range of 600 to 650F. Also remember, by adjusting the heat you can get whatever color you want. Prepare the components of the metal surface before you attempt to blue using your tools. You need to constantly be adding in a bit of water to bring the boiling point back down into the range you need. I've never done anything like this but want to try. Save my name, email, and website in this browser for the next time I comment. DG thank you. All tip submissions are carefully reviewed before being published. He started the site to explore the ethics, morality, business, politics, culture, technology, practice, strategy, dangers and fun of guns. Further, I probably would have used a coarser wet-dry to prep the raw steel (this was a kit Kentucky long rifle) rather than the 1500 grit I used. Wipe them down with WD-40 on a regular basis. Cold bluing is not particularly resistant to holster wear, nor does it provide a large degree of rust resistance. As I'm bluing round pieces I slowly and evenly rotate the piece over the flame to equally disburse the heat. Then you can express blue it with a propane torch and a tank of boiling water. *700F is very close to the heat treatment temperature of some steels. Woodworkers doing furniture finishing will use 000 and 0000 wool, and they hate oil on their wool for rubbing down oil finishes. Keep posting like this. Ive gotten hot blue salts on me splashed into my hair. First, let us go through a couple of bluing concepts that you have to know in order to achieve the desired result. How do I do this? Just dont. Its a good process, but it isnt a 1:1 replacement for blueing. We strongly advise that you only push through with this process if you are absolutely confident that you are able to perform the necessary precautions. on Introduction, Hello my name is Joe and Im doing a project where Im trying to achieve the same outcome. Your container should be relatively larger than your object. I wouldn't recommend either. 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. Pour in some acetone, and while wearing rubber gloves (dishwashing gloves are OK), put in a pad of 0000 steel wool, swish it around and pull it out. you could also heat this size tank with anything from a hibatchi up to a Weber charcoal grill or you could put it on top of a wood-burning stove or even a kitchen stove. You are a fantastic resource for all of us here. Keep them in that state while you heat them but be sure to not boil up the tank. It is usually inadvisable to use cold bluing as a touch-up where friction is present. This answer was tested with a utility knife blade and it drilled through with ease. Be careful since considerable heat might be generated in the process. 3 years ago. Add 5 lbs of regular table salt to the water. $3.59. Alternatively. Oil and grease really are the enemy because youre trying to (literally) corrode the metal. Gee, Im thinkin Duro or cero coat maybe even Krylon might be a good enough.. These include hot bluing, cold bluing, niter bluing, and so on. "@context": "http://schema.org/", Your tanks better be tight, your stands for the tanks better be rigid, youd better have top-of-the-line fire extinguishers (NB the plural) available to you. I wore latex gloves, as Brownells recommended, but used a pot holder to handle the hot barrel, and that may have been the source. gas coverage is another big one. 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. 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. Copyright 2023 Flixsterz. Glad that there are folks like you around. So, you start with a clean gun, in the white, you play a propane torch over the gun to get it to the point where the blueing solution just will readily steam, but barely sizzle, and then you brush on the blueing compound. Itll take perhaps 20 minutes to really dry down. The mixture is heated to 310 to 321C (590 to 610F) and the parts are suspended in this solution with wire. Right now I'm working on excavator replacement pins! Also: Do not allow the solution to run, drip or sag. 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. Use a steel tool to stir (remember the fumes). Whats the difference between Brown Express and Blue Express? 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. The color is oxide, but I believe you can scrape it off. Oh mas oui.Express blueing, slow rust blueing, hot salt blueing, nitre blueing, carbona blueing all are better than cold blueing. Once it's cooled down, take the object out of the oil and place it on a piece of paper/cloth and let it set for about 20 minutes. Think big scars. Thats one way to get dyspeptic to write articles! 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. Hopefully these concepts suggest caution and diligence for what you are doing. February 20, 2016 at 16:12. this produces better, less turbulant gas flow, which will reduce heat traces. [ The cabinet is then sealed. If you do not get crazy and over heat the steel there is no reason to be fearful of the process. I can't stress how important the degreasing step is! It is not nice stuff. Safety is the number one priority so protect your body as much as possible. Heat the gun parts. The bottom of the crucible is opened allowing the contents to drop into the rapidly bubbling water. Im talking like 90+ minutes to heat the salt bath to 285F. Use a smaller toaster oven if your piece of steel fits inside. This is how Colt made their rifles and pistols prior to Civil War you can read all about the process. You have entered an incorrect email address! Note that it has to be a different tank from the one you used for Step 2. I pulled the temp off the top of my head. While still hot and while wearing rubber gloves rub the bluing compound Into the steel with the steel wool. After spending most of his career as a firearms expert and enthusiast, he retreated to the great outdoors to raise his family in peace and quiet. 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. To harden steel, start by heating the metal directly with a blow torch until it turns a cherry red color. Approved. So you will get a shinier finish. 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). Sign up for wikiHow's weekly email newsletter. The part that is to race the other is heated normally up to about 220 especially if it is an aluminum casting like a cylinder head. Browning a gun gives you a nice, even brown patina finish of red rust on a gun. occasionally I'll buff it afterwards. it would appear these sights are drifted into dovetails. Youre just using stump remover to do it. I heat treated a piece of carbon steel to make it less likely to wear (using its edge as a cutting surface in a wood turning application). http://www.lowes.com/pd_188198-316-HG-66420_0__?productId=4764059 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. If you have very light, fine pitting, you can polish this out. ", not only fun, but also profitable. On this Wikipedia the language links are at the top of the page across from the article title. Very helpful! In the nitre bluing process, polished and cleaned steel parts are immersed in a bath of molten saltstypically potassium nitrate and sodium nitrate (sometimes with 9.4 grams (0.33oz) of manganese dioxide per pound of total nitrate). The steel will pull some of the carbon out of the oil while quenching and harden the outer portion of the metal. 1. Spilling salts at this temperature will instantly result in fire, because the KNO3 is a powerful oxidizer all on its own, and the added thermal energy will light anything on fire all alone. 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. Hot. This process is also the only process safely used to re-blue vintage shotguns. "image": { 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 Rust bluing is also used on shotgun barrels that are soldered to the rib between the barrels, as hot bluing solutions melt the solder during the bluing process. 84 or Du-Lite 3-0. 1. You will need:-2x containers (one of them preferably being metal for the oil)-oil -unleaded petrol/Acetone/Terpentine/Rubbing alcohol or any goo Its the corrosive gift that just keeps on giving. Christopher Graham writes all the content and reviews on this site with the help of his team of hunters and shooters. So unless you have sufficient equipment and skill, its advised to let a professional perform the bluing for you. 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. Hardening will cause it to be more brittle, which could cause the hammer to chip and cause injury. 'Browning' is controlled red rust Fe2O3, and is also known as 'pluming' or 'plum brown'. SO, DG; unless I missed it, I am assuming the torch is used separate from heating the tank/ container with the boiling solution. 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. Mix equal parts of cream and liquid Brownells Oxpho Blue. And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. Do NOT wipe/touch your metal with anything after degreasing as the whole purpose of cleaning was then for nothing. It does provide good rust resistance, which is improved with oil. 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. My dad keeps his in a big safe with large desiccant packs that he threw in there. I have also had good results with 5w/30 motor oil, I've also used two-stroke oil with good results. 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. Next comes the main part. LOGIX 20910 Butane Torch, Cooking Torch, Torch for Creme Brulee, Refillable, 9.6 oz, Blue Steel . In this case cooking oil, rather than gun oil, acts to displace water and prevent rust.
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