Follow the instructions. Quenched steel is harder, but it becomes more brittle. Hot blueing is a good process, especially if you have a lot of iron to shove through the blueing process quickly. I am simply trying to learn anything and everything that there is to know about it. The mixture is heated to 310 to 321C (590 to 610F) and the parts are suspended in this solution with wire. Browning a gun gives you a nice, even brown patina finish of red rust on a gun. You want 0000 steel wool for carding between coats. That can be a pen torch (pictured), a blow torch, a heat gun, a gas hob (which I am going use) or anything that will provide you with enough heat. Bluing (steel) - Wikipedia I wish this article had come out sooner, since I did not know that 0000 steel wool may have oil in it. Use ice cubes. If you drop a piece of paper in there, or hydrocarbon compounds (like oil or grease on your part). You want to be in the range of 600 to 650F. Frequent TTAG commenter Dyspeptic Gunsmith saw the gun above in our postA Garden Gun Cultivates a Newfound Fascinationand answered reader questions about blueing/reblueing a gun thusly: If the rust is very fine and there is still substantial blueing left on the gun, you might want to strip the blueing. 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. They should start gassing up approximately 2 to 3 minutes after exposure. He started the site to explore the ethics, morality, business, politics, culture, technology, practice, strategy, dangers and fun of guns. on Introduction, Hello my name is Joe and Im doing a project where Im trying to achieve the same outcome. How to Hot Blue Steel with a Torch- A Step-by-Step Guide To harden steel, start by heating the metal directly with a blow torch until it turns a cherry red color. occasionally I'll buff it afterwards. "keywords": ["how to blue stainless steel"], Depending on the manufacturers manual, youll have to prepare roughly 6 to 8 tanks to perform the bluing effectively and efficiently. You can blue heat-treated parts with no ill effects. 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. "https://www.youtube.com/channel/UC6dwEQfHK1tk_ZeaA4PniOA/", "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). Add 5 lbs of regular table salt to the water. this produces better, less turbulant gas flow, which will reduce heat traces. The practice of bluing steel takes time and an exquisite eye for detail. You might be able to start at 320 grit. 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. My current rifle builds are going to be parkerzied. Bluing only works on steel, cast iron, or stainless steel parts for protecting against corrosion because it changes iron into Fe3O4; it does not work on non-ferrous material. 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). Blue JUST DONT. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. Dont drop or try to bend the steel once its removed. Oil-free steel wool is also sold by woodworking shops. 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. However, due to the unique qualities of stainless steel, you cant simply blue the material however way you like. So basically, youll want the rifle in the vise with the muzzle pointed to your left. 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. Alternatively. When everything is set up, put on your protective gear and then get down to business. The reason why blued guns rust is that something was allowed to attack the surface blueing and get through it to new steel or the blueing job wasnt deep enough to complete passivate the surface from red rust. All those materials the leather and bone the coal where sources of carbon and other trace elements. That way, you can still use your oven for the rest of the evening. At 700, you start losing your blues and the steel starts becoming a wispy silvery-blue, not a dark brilliant blue. Contemporary heat-treatable steels did not exist or were in their infancy. The potassium nitrate will liquefy at around this temperature and blue your items at a relatively quick speed. 2. "image": { Mea culpa. Still, you will find that cold blues dont last. "width": "1500", 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. http://www.lowes.com/pd_188198-316-HG-66420_0__?productId=4764059 NaOH will quickly and completely dissolve aluminum. "author": "Christopher Graham", 2 years ago "logo": { Bear in mind not to touch the walls of your container as you don't want to disturb the process of what's happening! Brownells has steel tanks, and there are some steel/stainless long/thin tanks available from other sources. Torch "name": "Shooting Mystery", Vegetable oil has a higher boiling point, so the hot steel will take longer to cool and reduce the chance of it cracking. To heat this, I use a Coleman camp stove and a 15# jug of LPG gas. The cabinet is then sealed. wikiHow marks an article as reader-approved once it receives enough positive feedback. I dont have that much blueing to do in my shop, so I dont use hot salts. Usually, you can find the manufacturers recommended ratio in the product manual. Be patient in the first few minutes as the metal needs to reach the temperatures where it changes colour! Life is good. The reason I ask is that when you heat steel that is in the white to 600F, you get a brilliant blue all on its own. Just use distilled water. Its a pretty straightforward process. Woodworkers doing furniture finishing will use 000 and 0000 wool, and they hate oil on their wool for rubbing down oil finishes. I plan on doing this on a couple of older beaters first. Go on and start bluing! Even with safety glasses and a full-face shield, a rubber apron, rubber boots, etc it is possible to get salts into your eyes and all over the rest of you. Cold blues will Cold blueing is OK for touchups, at best. blue steel Sorry for the misunderstanding. Bluing is also used in seasoning cast-iron cookware, to render it relatively rust-proof and non-stick. We will verify and confirm your receipt within 3 working days from the date you upload it. If you are new to the subject and are in need of detailed instructions, then youve come to the right place. If your barrel has heavier pitting, now were into filing to remove pitting, and thats something I cant teach people in mere text. 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). I had to sand and restain the stock, and sanded the barrel from 120 down to 400 grit the pitting was so bad. : Make sure it is made from Mild Steel or Titanium. The mixed fumes of the acids produce a uniform rust on the surface of the parts (inside and out) in about 12 hours. 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. The rod was heated and the plate 2" square was inserted and the rod shrunk onto it. ")You're ABSOLUTELY right. 'Browning' is controlled red rust Fe2O3, and is also known as 'pluming' or 'plum brown'. Color case hardening is the predecessor of all metal coloring typically employed in the firearms industry. You can then u. se a soft brush to gently remove all the residue of the cleaning solution on the components. ", not only fun, but also profitable. I can keep a Krylon can always handy for touch-ups. Referring to the post that started all of this; Dyspeptic Gunsmith says: Degrease a pad of 0000 steel wool with acetone. Theres a reason I didnt pursue a career in chemistry. 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. the cost of the burners or heaters to heat up all these tanks really only practical if you have natural gas available Not only does it give you an alchemical feeling of satisfactionbut it also gives the metal a finish to stop corrosion. However, oil may spill and create a fire hazard if the steel is put into the oil too quickly. Thanks to all authors for creating a page that has been read 914,567 times. My apologies for the background noise in the first half of the video We had compressors running where I This is not advisable. Here is a simple way to get a blued finish on steel. Remove any previous finish. 3D Printed Futuristic Space Age Wall Clock. A non-linear resistance property of the blued steel of razor blades, foreshadowing the same property later discovered in semiconductor diode junctions, along with the ready availability of blued steel razor blades, led to the use of razor blades as a detector in crystal set AM radios that were built by servicemen (as foxhole radios) or by prisoners of war during World War II.[8]. 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! Question This is an alternative method for creating the black oxide coating. 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 The cross section and size of parts affect the outcome of the finish and time it takes to achieve. Wear thick gloves so you dont burn yourself. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. The difference is immersion in boiling water for bluing. It was left in a flannel gun case in the back of a moist closet for 25+ years. Either that or the steel wool. 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. They have their place, but doing a whole gun with them isnt that place. The parts can often be put together with little or no forces need and friction lock together and the one parts shrinks and the other part expands. First, let us go through a couple of bluing concepts that you have to know in order to achieve the desired result. With HSS you're looking for 2500-3000rpm, M35 or M42 cobalt bits 3000-3600rpm, and carbide 10k-12krpm. (NaOH from Ebay soap supplies). 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. If you want it smoother/shinier, you can polish up to 600 grit, with wet-or-dry paper. This signifies that the steel is tempered. What did you use for polishing your pieces and Im guessing you polished then added the chemicals after?Thanks, Joe, Question Blue Metal Shell 13 in 1 Welding Torch Nozzle Tip Cleaner For Welder Soldering. Thats how vigorously we de-grease guns before starting blueing. All blued parts still require oiling to prevent rust. I use it, oh so cautiously in making my biodiesel. Is the torch used to heat metal ..ONLY.with Cold bluing? You need to adjust the boiling point of the salts for your altitude. Im asking because theres a guy on YouTube recommending Brown Express first, then several layers of Blue over that. The differing rate of cooling for each area produced a different color creating that rainbow effect.
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