The head is fixtured and and an arm holding the valve seat moves the the proper location. Hot bluing should never be attempted on aluminium, as it reacts it usually dissolves in the caustic salt bath. [ 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. Browning a gun gives you a nice, even brown patina finish of red rust on a gun. Only 3 left in stock - order soon. It is not nice stuff. They should send you a stipend for your time. You want to be in the range of 600 to 650F. We use cookies to make wikiHow great. It will first turn gold, then orange, then red, purple, blue and then dark grey! 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. 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 Wear thick gloves so you dont burn yourself. Ill detail why. Bluing is a process usually used by gun owners and firearms manufacturers to improve the aesthetic value of their weapons. The mixture is heated to 310 to 321C (590 to 610F) and the parts are suspended in this solution with wire. WebHeat the blade for 15 to 20 minutes in an oven set on 325 Fahrenheit if the handle is metal. You can then use a soft brush to gently remove all the residue of the cleaning solution on the components. The ideal setup is a pair of long sleeve gloves along with splash goggles and a face mask. Once you see it turn golden, the process has started and colours will change fairly quickly! Now you slide the cold rod in, and the plate cools, gripping the rod. ", steel". No. 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. "keywords": ["how to blue stainless steel"], 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 produces better, less turbulant gas flow, which will reduce heat traces. In literally 10 seconds on a buffing wheel incorrectly applied, I could screw that up to a point where it might take be eight+ hours of hand polishing to recover my prior results. Metal Finishing Guru. Quenching the steel rapidly cools it so the alloys inside harden together. Treating with an oiled coating enhances the protection offered by the bluing. Acetone is also useful for de-greasing the barreled action. I use it, oh so cautiously in making my biodiesel. Youre a gunsmith who has a lot of nice guns! Its easy enough to color metal with a torch, but it has always been a hit-or-miss process for me, and when it was a big hit, I was rarely able to re-create how it got that way. For this Instructable I'm using thread cutting oil. The steel is also used for producing great police flashlights with awesome durability. Hunter holds a BFA in Entertainment Design from the University of Wisconsin - Stout and a Minor in English Writing. Approved. You should note that the blue layer is rather delicate so dont treat it roughly. I have cut and polished 4 pieces of mild steel to demonstrate different colour stages. Alternatively, You could store them in a hard case (like a pelican with a purge) and throw some desiccant packs in there as well. 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 . 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! 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 gas coverage is another big one. Get it Feb 25 - 27. Also: Do not allow the solution to run, drip or sag. 99. Im talking like 90+ minutes to heat the salt bath to 285F. You want 0000 steel wool for carding between coats. I pulled the temp off the top of my head. This step should be done before heating the steel, as the steel should be quenched immediately after removing from heat. -An old container filled with your chosen degreaser (unleaded petrol), -Your desired polished metal object/s (very important! Did you make this project? (meaning oxygen atoms are able to attach themselves to the outer layer of the steel)We did this with an electromagnet! This process was repeated until the desired depth of color was achieved or the metal simply did not color further. 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? 3. Now you can start.Apply heat to your object and heat up gently and equally. As I'm bluing round pieces I slowly and evenly rotate the piece over Black iron wire You will need black iron wire to tie around any object you WHERE or when would the torch get used? Woodworkers doing furniture finishing will use 000 and 0000 wool, and they hate oil on their wool for rubbing down oil finishes. Ill go into parkerization later this week. For this reason, it is considered not to add any appreciable thickness to precisely-machined gun parts. Put all the components into the tank and wait for 5 15 minutes. A couple bottles of aged bourbon minimum. 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. Its a pretty straightforward process. I now want to reverse the process so I can drill and tap the metal tip. To shrink, I assumed you heated the steel plate only, to expand the hole in it. Color case hardening is the predecessor of all metal coloring typically employed in the firearms industry. Buffing wheels have their purpose, but they take real skill to use without making a mess of guns, starting with the selection of the wheel (theres, oh, at least six types of buffing wheel), choice of type of compound, choice of grit of compound, choice of wheel speed (many buffers have only one speed, and there are some jobs where you really want a 3-phase motor on your buffer with a VFD to adjust the speed down from 1800 or 3600 RPM) and so on. Have proper ventilation and use proper modern safety gear! Mea culpa. Go on and start bluing! The differing rate of cooling for each area produced a different color creating that rainbow effect. It is hazardous. I wore latex gloves, as Brownells recommended, but used a pot holder to handle the hot barrel, and that may have been the source. By signing up you are agreeing to receive emails according to our privacy policy. $36.73. When youre done, attach the thermometer to the tank and fire up the burner. Hot. Seriously, this is interesting and thank you for posting it, but I hope to never be in a position where I need to use either of these techniques! I rarely use them. Cold blueing solutions usually just dont wear well. Fe3O4 requires chemicals and/or heat to push the iron to full oxidation. 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. { Bluing, being a chemical conversion coating, is not as robust against wear and corrosion resistance as plated coatings, and is typically no thicker than 2.5 micrometres (0.0001 inches). Before you start, it might do you well to mark the sight base on each side of the dovetail with a Sharpie marker, so you can see when the sight begins to move. You heat the outside member only when you do a shrink fit.). 2023 All Rights Reserved by Shooting Mystery. If you have a wood or phenolic handle, use a propane torch to heat the blade only for about two minutes. -A heat source. 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. It is usually inadvisable to use cold bluing as a touch-up where friction is present. You can blue heat-treated parts with no ill effects. I saw you reference a coleman stove and propane tank for heating solution. The object on the left is a custom mild steel potentiometer knob! How do I harden a steel hammer so that is lasts longer and is more durable? Oxides come after its been heated to a red heat and cooled. "@type": "ImageObject", It also looks good on AK type weapons of which I have three to park. Youll want to clamp on the barrel directly under the sight youre about to drift out. Its a good process for processing lots of guns, but I simply cannot recommend it for people who just want to do a gun here or a gun there.. Im not responsible for marital discord as a result of gun projects attempted on the kitchen stove. Thank you, DG! So you said the polishing is key for the coloring process. This method was adopted by larger firearm companies for large scale, more economical bluing. Thats how vigorously we de-grease guns before starting blueing. Use hemostats to hold a cleaning patch wetted with the solution and apply in nice, long, even strokes. WebBluing is a passivation process in which steel is partially protected against rust using a black oxide coating. So you will get a shinier finish. 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. Let them cool down as you take a closer look at the bluing effect. Just dont do it. When youre done and have neutralized & washed off the Express Blue #1 solution, you then should spray down the barrel with water-displacing oil. I handed a buddy my wallet and cell phone, and stepped under the safety shower and got wet. To remove them, you put the action/barrel into a sturdy vise (padded with soft jaws) and you use a piece of brass rod to drift the sights out. NaOH will quickly and completely dissolve aluminum. Different colors can be achieved through variations of this method including quenching in oil instead of water. for 6-8 hours. It greatly helped me to learn how to blue a gun perfectly at home. I can then get the temp to be 600F spot-on in a lead melting pot. You need to constantly be adding in a bit of water to bring the boiling point back down into the range you need. wikiHow is where trusted research and expert knowledge come together. I can keep a Krylon can always handy for touch-ups. Very helpful! ", the wrong quality steel. Mix equal parts of cream and liquid Brownells Oxpho Blue. While still hot and while wearing rubber gloves rub the bluing compound Into the steel with the steel wool. Salts. This is as deadly as the lye-based hot salts, but more for the temperature of a large batch of salts. Being prepared is important if you can not measure the temp. However, due to the unique qualities of stainless steel, you cant simply blue the material however way you like. The difference is immersion in boiling water for bluing. % of people told us that this article helped them. Heat the Steel. 4.3 out of 5 stars 242 ratings-30% $12.99 $ 12. Next comes the main part. Ships from and sold by Direct-Wholesale. Premium fencing blades are often offered with a blued finish. The steel will pull some of the carbon out of the oil while quenching and harden the outer portion of the metal. 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. Why do you bother with all this crap?. Do all the prep you would for express or rust blueing, especially degreasing. I'm trying to be positive and constructive, and think this is: for an amateur to stick a very hot torch-heated metal object into a plastic container filled with oil is simply dumb (ok, more polite: "irresponsible") at best, highly dangerous at worst. For more information on using a blowtorch and protecting the steel, scroll down! That doesnt happen easily or by accident. Itll take perhaps 20 minutes to really dry down. Battery acid is childs play compared to blueing salts. Dont touch the metal with your bare hands since it could cause severe burns. Examples of this finish are common on older pocket watches whose hands exhibit what is called 'peacock blue', a rich iridescent blue. This article has been viewed 914,567 times. It can soften up some paints and plastics. 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. This is not necessary as long as you can hold your item appropriately and not cover where it is to be heated. Include your email address to get a message when this question is answered. 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. Heat the gun parts. 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. You wouldnt need salts. We will verify and confirm your receipt within 3 working days from the date you upload it. Bluing is also used for providing coloring for steel parts of fine clocks and other fine metalwork. Use ice cubes. I have in the past few years became more and more. "image": { Steps to Hot Blue Steel with a Torch 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. -2x containers (one of them preferably being metal for the oil), -unleaded petrol/Acetone/Terpentine/Rubbing alcohol or any good degreaser, -metal object/s (I used mild steel, Please note this method should NOT be used on tempered/hardened steel as you will effect the properties of the metal). Ill be saving this for the future. "mainEntityOfPage": "https://shootingmystery.com/blue-stainless-steel-beginners/", Usually, you can find the manufacturers recommended ratio in the product manual. This article was co-authored by wikiHow staff writer, Hunter Rising. Thank you all who had a part in the production of this important information! Any gun. If you cant, just get them out of the case and allow air to circulate around them. Answer Not every manufacturer puts bittering agents in the solution and as one poison control nurse told me: (t)here is nothing you can do and it aint the good death.. Alternatively, you can press the pad of steel wool between your hands over the container of acetone, and then put it on some paper towels to dry. The robot gives the steel valve seat a quick blast with liquid nitrogen and drops the seat right in place. Again, dont mess around with these chemicals and only handle them with extreme attention. When the liquid stops bubbling, remove the metal from the container and wipe off any excess liquid. To remove pitting and keep the barrel profile intact requires skill with a file, and that requires hands-on training. I thought there was something that could help improve the colors but wasnt sure until I came across this. "url": "https://shootingmystery.com/wp-content/uploads/2021/01/How-to-Blue-Stainless-Steel-in-5-Easy-Steps.jpg" 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. I am using bronze, is it for a polish? You can use a heat gun, a blow dryer, or a torch for this. "@type": "ImageObject", 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. You can make a Caustic Soda KNO3 water bath: 65% Lye (aka sodium hydroxide) This will keep the bluing from adhering to the sharpened edge. Participated in the Explore Science Contest. The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. Because so many people are trying to do this sort of thing on the cheap, thats when I start thundering in my warnings about safety. The plate turned blue just like you ible and I was told this was an effect of compression fitting.the rod didn't change colour even though it had the heat applied to it so was it actually the compression fit that changed the plates colour. There are 10 references cited in this article, which can be found at the bottom of the page. Can a softly tempered piece be re-tempered harder without going through the hardening procedure again? Depending on the manufacturers manual, youll have to prepare roughly 6 to 8 tanks to perform the bluing effectively and efficiently. 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. on Introduction. Then, you can put the components back into the bluing tank and increase the temperature until you see the blued steel. it takes a long time to heat up a long (ie barreled action length) tank that is, oh, three barrels wide. I have also had good results with 5w/30 motor oil, I've also used two-stroke oil with good results. Your container should be relatively larger than your object. Below is a link to a video I found on YouTube that shows the process. 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. By the time I was done it looked like it was a beat up 5 year old gun rather than a 1930s bolt .22 that came from a scrap yard. 2. I like using acetone to strip the heavy oil on guns, because it lightens up the oils and makes them easier to strip with a water-based cleaner. When putting water in your boil-out tank, use distilled water if you have water with high mineral content. Even at room temperature, the salts are highly caustic and will eat into your eyes or skin in seconds not minutes. Thank you so much for sharing such a great article. I believe the change of color is due to a growing thickness of an oxide layer. I wouldnt use this bluing method for these items. Make sure to check every nook and cranny of the components so that you can find any discoloration or blemishes. Christopher Graham writes all the content and reviews on this site with the help of his team of hunters and shooters. Also remember, by adjusting the heat you can get whatever color you want. Tenifer get's up to (1077F) last I checked and was the 5th step in Glock heat treating after that they Pakerize it. With. And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. WD-40, as mentioned earlier, is a water-displacing oil compound not a penetrating lube, and for preventing rust, WD-40 actually works pretty well, but it doesnt last like cosmoline or waxy oils used for long-term rust prevention. Excessive buffing on stainless steel could result in a grainy appearance so do it with care. You might need two applications to clean up more deeply rusted spots. The cabinet is then sealed. Depending on what solution you use, the tank temperature must be maintained somewhere between 240 and 310 degrees Fahrenheit. journeyman. Free shipping. Gun companies dont/wont do it because they want to make quick money, and today its all phosphates and bake-on appliance paint (you didnt think a guy who calls Glocks cheez-whiz was going to sing the praises of Duracote or Cerakote, did you?). You dont want to affect the hardness of your steel in critical areas like actions, bolts, bolt lugs, barrels, chambers, etc. My current rifle builds are going to be parkerzied. pliers, mole grips, -An old metal container (I know, a plastic container is pictured but always use a metal one) filled high enough with oil to completely submerge your steel object would be ideal. 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. Many older browning and bluing formulas are based on corrosive solutions (necessary to cause metal to rust), and often contain cyanide or mercury salts solutions that are especially toxic to humans. Some people might not have a tank long enough to contain a barreled action to boil out. On this Wikipedia the language links are at the top of the page across from the article title. I ended up with some spots where the browning did not take, and a few dull spots, most of which I was able to buff out with steel wool soaked with gun oil. Heat the gun parts. Wear safety glasses and gloves while working with hot metal. That seems wasteful. When everything is set up, put on your protective gear and then get down to business. Do this outside, so you can do this next part: Just whip the steel wool at arms length to extract the excess acetone. YouTube - Nitre bluing a few gun parts. "@context": "http://schema.org/", 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. Haha. 3 years ago Its nice when something can be re-used a time or two, especially when used in diversified ways. I use kerosene to wet my paper from 500 on up. Keep posting like this. *Potassium Nitrate is an oxidizer. Is the torch used to heat metal ..ONLY.with Cold bluing? When you buy through links on our site, we may earn an affiliate commission. Shooting Mystery is an independent website that provides content for informational purposes only. on Introduction. Hopefully these concepts suggest caution and diligence for what you are doing. The downsides are: the safety issue, which I laid out above, and which youve made clear. Another good test for determining when the steel is ready is seeing if a magnet sticks to its surface. The steel was mild steel and had very little carbon content. 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. Drift the sights back in from the right side of the barrel. While the rod may heat some by conduction, it wouldn't get hot enough to start the color-forming process. 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. Youre just using stump remover to do it. All tip submissions are carefully reviewed before being published. How to Blue Bluing Steel Using Oven Or Torch and Oil Method. 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). Brownells has a product that will strip blueing and rust (Fe3O4 and Fe3O2, respectively) and not corrode the underlying steel.Remove the barrel & action from the stock. Great column, and thanks for all the responses to various questions and comments. JUST DONT. Once you get the colour you want, go outside to your oil container and fully quench your object into the oil! List Price: $18.64 $18.64. After three coats, washing and drying, the finish was not too bad, considering I was (and am) a rank amateur. The differential cooling causes patterns of colors to appear as well as hardening the part. 4 years ago Blue or Black rust is complete passivation of the steel surface Fe3O4. Keep a grade B fire extinguisher nearby in case of a fire. It is caused by a layer of oxide that forms when the steel is heated. For the final step, we let the components cool down in water displacing oil. And for the next (after the next) installment, how to do hard case coloring. The process isnt intended for bronze. Red rust is Fe2O3, and is incomplete rust it will continue allowing the surface to corrode over time hence the oil or wax. Historically, razor blades were often blued steel. 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. What did you use for polishing your pieces and Im guessing you polished then added the chemicals after?Thanks, Joe, Question Keep them in that state while you heat them but be sure to not boil up the tank. For more information on using a blowtorch and protecting the steel, scroll down! 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. If youre using acetone to de-oil, dont be afraid to do it more than once. Very true. Be careful since considerable heat might be generated in the process. The potassium nitrate will liquefy at around this temperature and blue your items at a relatively quick speed. Following the treatment in the bluing tank, relocate the components to a cold water tank. Fill a heat-safe container with water or oil deep enough to submerge your steel. Hot NaOH is so alkaline it is great as dissolving organic materials. Do NOT wipe/touch your metal with anything after degreasing as the whole purpose of cleaning was then for nothing. Always back your paper when youre polishing over edges and up against features. Oil-free steel wool is also sold by woodworking shops. Ill be buying the stainless tubs and chemicals to do it and go for as close to black as I can get. Use your torch to bring up 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. The content is not meant to be a replacement for professional service advice. You need to adjust the boiling point of the salts for your altitude. "https://www.pinterest.com/theshootingmystery/", High temperatures and dangerous chemicals mean that a moment of carelessness can make you pay a heavy price. My apologies for the background noise in the first half of the video We had compressors running where I I guess Ill have to just be happy drying toilet paper. 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. Here is a simple way to get a blued finish on steel. I have done a cold blue on a very rusted .22 for a friend. By using this service, some information may be shared with YouTube. Thats one way to get dyspeptic to write articles! When you add water to a hot salt tank, you get an explosion of steam, and you need to develop some skill in adding the water with a very fine copper pipe on your water hose to prevent steam blow-outs spattering salts all over you. His enthusiasm for handling firearms and hunting gear inspired him to create the Shooting Mystery blog. You risk a big fire that is self sustaining by the reaction itself. Itll evaporate rather rapidly, but still, dont whip it at cars or house finishes. Repeat 3 times. Cold blueing is OK for touchups, at best. This finish allows them to be stored in high-moisture conditions, like sports bags, without rusting. Thoroughly degrease the area to be reblued with acetone. I wouldn't recommend either. }, 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.
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