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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. Dang it all. 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. this produces better, less turbulant gas flow, which will reduce heat traces. This works well for me. The robot gives the steel valve seat a quick blast with liquid nitrogen and drops the seat right in place. A Garden Gun Cultivates a Newfound Fascination, AZ Judge Dan Slayton Refuses to Reduce $2m Bail in Flagstaff Campus Self Defense Case, State Judge Issues Order Blocking Enforcement of Illinois Firearms Ban Act Statewide, Protecting and Serving: Springfield, IL Police Seized Homeowners Gun After Investigating Her Report of a Prowler UPDATED, Chicagos Failed Mayor Lori Lightfoot Loses in Reelection EffortBadly, http://www.lowes.com/pd_188198-316-HG-66420_0__?productId=4764059, http://cdn.spectrumbrands.com/~/media/Spectracide/Files/MSDS/SpectracideStumpRemoverGranulesSDSApr15.ashx. This article was co-authored by wikiHow staff writer, Hunter Rising. ", 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. You are nitre blueing here. 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. Even a fingerprint will affect the consistency of the colour. Its essential to keep stirring the tank to prevent the forming of hot and cold areas. Use your torch to bring up Hunter holds a BFA in Entertainment Design from the University of Wisconsin - Stout and a Minor in English Writing. After Technically speaking, bluing is more or less a conversion of red iron oxide (Fe2O3) to black iron oxide (Fe3O4). THANKS DG. Various processes are used for the oxidizing process. I have done a cold blue on a very rusted .22 for a friend. 4.3 out of 5 stars 242 ratings-30% $12.99 $ 12. 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. To remove pitting and keep the barrel profile intact requires skill with a file, and that requires hands-on training. If you are referring to torch bluing, the 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!). Hang the trigger group again, re-stock and you should be done. 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. Salts. With. Dont. 8 years ago This will keep the bluing from adhering to the sharpened edge. All blued parts still require oiling to prevent rust. You want to be in the range of 600 to 650F. The bottom of the crucible is opened allowing the contents to drop into the rapidly bubbling water. 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. Heat the Steel. I rarely use them. the cost of all the tanks you need for rinse & boil-out If everything appears good, then you can transfer the components into a hot water tank. There are 10 references cited in this article, which can be found at the bottom of the page. Depending on what solution you use, the tank temperature must be maintained somewhere between 240 and 310 degrees Fahrenheit. Get it Feb 25 - 27. Shooting Mystery is reader-supported. For larger pieces of steel, you need to use a. Wipe them down with WD-40 on a regular basis. Safety notes: Dont use an aluminum pan. Metal I wish this article had come out sooner, since I did not know that 0000 steel wool may have oil in it. Very helpful! But the article was very informative. Oxides come after its been heated to a red heat and cooled. 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 ? Reply Add 5 lbs of regular table salt to the water. (NaOH from Ebay soap supplies). 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 cold bluing is the only practical option, the area should be kept oiled to extend the life of the coating as much as possible. The wire is extremely small in diameter, so you have to take that into consideration. Different colors can be achieved through variations of this method including quenching in oil instead of water. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. Old school smiths use something called washing soda to strip oil off guns. Excellent info. 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. 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). Thank you all who had a part in the production of this important information! It is also used by machinists, to protect and beautify tools made for their own use. Steps to Hot Blue Steel with a Torch I want to add rainbow color to safety razor blades that would be used again, how can I do this? Blow torches only heat a small concentrated area. "Cold" bluing is generally a selenium dioxide based compound that colours steel black, or more often a very dark grey. By using this service, some information may be shared with YouTube. Probably the main one is the content of so-called "carbon, "I was looking at making a set of plate armor and I wanted to see how to harden the breastplate. A couple bottles of aged bourbon minimum. Every true outdoorsmans dream! After three coats, washing and drying, the finish was not too bad, considering I was (and am) a rank amateur. The "turning blue" process has nothing to do with hardening of the steel, or its compression. 2 years ago, For the record The gentleman said multiple times that the plastic container shown in the pictures was just for the instructional photos and to be sure that the container is made of metal for this process, (Homer Simpson smacking his forehead: "DOH! Think big scars. I wasnt planning on doing it for a few months. 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. 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. Next you hold it in front of your heat source until a blue oxide layer covers the whole blade edge. 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). When youre using polishing paper, you think that 600 grit is very fine, and it is taking you hours to polish out something to 600. Most knives, rifle receivers and barrels are heated to at least 1200F and cooled and drawn at 490F-700F. If you have very light, fine pitting, you can polish this out. Bluing (steel) - Wikipedia The hot washing soda tank typically used in gunsmith shops is caustic washing soda, and if you leave the gun in long enough, youll start to see corrosion on the gun before you get to the blueing step. As mentioned, cold bluing can be done at room temperature with decent results. This will remove all the traces of the bluing solution and other chemicals. Torch Submerge in water and scrape edge. OK, now with the sights out and the trigger group off, you can put on the rust/blue remover on the barrel/action. Blued Pivot Steel Blue Metal Shell 13 in 1 Welding Torch Nozzle Tip Cleaner For Welder Soldering. You turn up your nose at crap guns? ", the wrong quality steel. Glad that there are folks like you around. You need to constantly be adding in a bit of water to bring the boiling point back down into the range you need. "width": "1500", For the color change to be uniform you have to remove the grease, oil, paint etc or it looks blotchy. Brownells has steel tanks, and there are some steel/stainless long/thin tanks available from other sources. 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. This signifies that the steel is tempered. "@type": "ImageObject", It greatly helped me to learn how to blue a gun perfectly at home. fascinated with blacksmithing, but have not had an income to even get it started. The head is fixtured and and an arm holding the valve seat moves the the proper location. -A heat source. Where/how did you think I got to the point I could make nice guns? ", not only fun, but also profitable. I plan on doing this on a couple of older beaters first. I wish I had known more about the process, heating (I was working outside on a 60 degree day) I may have to check with my friend to see if it needs reblued again, Im sure he never shot it. They melt at, oh, somewhere about 280F. I just had my first experience rust browning a barrel. "author": "Christopher Graham", I can then get the temp to be 600F spot-on in a lead melting pot. Once the solution reaches its boiling point, turn down the burner to about one-third of the boiling temperature and let it stay there. Most cold blueing agents contain some selenium dioxide in them to enable to them to react at room temps. "image": { 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. 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. "height": "800", Gas burners can usually do the job for this. I have to finish my M76 and Galil first and buy the materials. Bluing Stainless Steel: What You Can and Cant Do - Forging World You can blue heat-treated parts with no ill effects. If the magnet doesnt stick, its ready to be pulled away from the heat. Oil and grease really are the enemy because youre trying to (literally) corrode the metal. This method must not be used on critically heat-treated parts such as receivers, slides or springs. I believe the change of color is due to a growing thickness of an oxide layer. Heat the area you'd like to drill just until it starts to glow red, then allow it to cool slowly. 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. Never know when it will come in handy. "Bluing" is the process of oxidizing steel to create a durable, corrosion-resistant layer. Wear safety glasses and gloves while working with hot metal. Bluing is often a hobbyist endeavor, and there are many methods of bluing, and continuing debates about the relative efficacy of each method. For more information on using a blowtorch and protecting the steel, scroll down! 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. Referring to the post that started all of this; Dyspeptic Gunsmith says: You then oil or wax over the finish when youre done. Black iron wire You will need black iron wire to tie around any object you It is one smoooooth profile, from one end to the other. Heating it again to a lower temperature will not introduce additional martensite. The parts must be observed constantly for colour change. 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. 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. As I'm bluing round pieces I slowly and evenly rotate the piece over the flame to equally disburse the heat. The steel was mild steel and had very little carbon content. it washes off with water. The cabinet is then sealed. That surface rust on the barrel could be polished off easily. Copyright 2023 Flixsterz. Keep posting like this. Some people might not have a tank long enough to contain a barreled action to boil out. Modern home hobbyist versions of this process typically use a hydrogen peroxide and salt solution, sometimes with vinegar, for the rusting step to avoid the need for more dangerous acids.[7]. Steel 3D Printed Futuristic Space Age Wall Clock. Keep a fire extinguisher near your workstation in case of a fire. Enjoy! Remove any previous finish. At least one of the cold bluing solutions contains selenium dioxide. 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. Learn more Steel is a common durable alloy, and while most steel used in tools is already tough, you can harden it even more to prevent wear and tear. You work on nice guns! While still hot and while wearing rubber gloves rub the bluing compound Into the steel with the steel wool. Are you sure you want to heat the steel to 700F in that early step? If the sights need to be stripped & blued, follow the same procedure, but dont polish on them. 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. Many double-barreled shotguns are soft soldered (lead) or silver brazed together and many of the parts are attached by that method also.
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