Also Dont get the 275-300F bath on you. It is slow rust blueing. Quenching the steel rapidly cools it so the alloys inside harden together. Metal The cotton gloves insulate your fingers from the heated barrel, and they prevent oils from your skin from getting on the raw steel. 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. Alternitavely you can leave it in the oil bath to stabilize. That way, you can still use your oven for the rest of the evening. 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. You are nitre blueing here. *700F is very close to the heat treatment temperature of some steels. Stainless steel can only tolerate hot bluing and a limited amount of chemicals. "Bluing" is the process of oxidizing steel to create a durable, corrosion-resistant layer. 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. Metal parts that look black or blue-black are usually blued (rather than painted). Mea culpa. 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. 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! Heat the gun parts. 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. Sign up for wikiHow's weekly email newsletter. 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. And for the next (after the next) installment, how to do hard case coloring. I dont use hot salt blueing because much of my work is on older double guns, which have ribs that are soft-soldered into place. 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. 2mm wire has a circumference of ~0.25in. In fact most guides no matter their material cast iron to bronze and often bearing races are installed the same way. "https://www.youtube.com/channel/UC6dwEQfHK1tk_ZeaA4PniOA/", 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. Black oxide provides minimal protection against corrosion, unless also treated with a water-displacing oil to reduce wetting and galvanic action. In order to confirm the bank transfer, you will need to upload a receipt or take a screenshot of your transfer within 1 day from your payment date. Then wipe off all excess oil and look at your beautiful finished object! Initially case hardening was used but did not offer any aesthetics. It is one smoooooth profile, from one end to the other. 8 years ago His enthusiasm for handling firearms and hunting gear inspired him to create the Shooting Mystery blog. How to Colour Steel With HEAT : 5 Steps (with Pictures) Your container should be relatively larger than your object. However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using Hydrochloric Acid). Heating will make the metal better in absorbing the bluing liquid. Is the torch used to heat metal ..ONLY.with Cold bluing? These include hot bluing, cold bluing, niter bluing, and so on. Bluing is also used in seasoning cast-iron cookware, to render it relatively rust-proof and non-stick. 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. The part you want to place in the receiving part is cold often just placed in a freezer for a few hours. Wait for a day to let the bluing properly cure before you do anything else to it. 2. -Something to hold your piece with, make sure it's appropriate to hold it with so it doesn't get too hot in your hands. 4 years ago Apply heat to your object and heat up gently and equally. The differential cooling causes patterns of colors to appear as well as hardening the part. Can a softly tempered piece be re-tempered harder without going through the hardening procedure again? Wait for 10 15 minutes and then take out the components. "I have very limited knowledge as to how metal can be manipulated for different applications. Metal Finishing Guru. Hes claiming that method is more durable than Blue alone. Reply To harden steel, start by heating the metal directly with a blow torch until it turns a cherry red color. Friction, as from holster wear, quickly removes cold bluing, and also removes hot bluing, rust, or fume bluing over long periods of use. I've never done anything like this but want to try. Prepare the components of the metal surface before you attempt to blue using your tools. In this case cooking oil, rather than gun oil, acts to displace water and prevent rust. Pull it out of the tank and place on a drain rack. The process isnt intended for bronze. 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. Then you can express blue it with a propane torch and a tank of boiling water. 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! For the final step, we let the components cool down in water displacing oil. 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.. Youll need some shop rolls, ranging from 180 to 400 grit (typical 4-packs are 180, 240, 320 and 400 grit, in 1, 1.5 or 2. Once the steel is clean, you can begin heating it up. My first time wasnt a stunning success. How to Blue/Re-Blue a Gun - The Truth About Guns The inside barrel was saved by the fact it was so full of lead fouling. 3D Printed Futuristic Space Age Wall Clock. Colour case hardening occurs when soft steels were packed in a reasonably airtight crucible in a mixture of charred leather, bone charcoal and wood charcoal. This article was co-authored by wikiHow staff writer. No. Just remove the blue/rust, degrease, dry, then blue/card/boil-out/oil/drain. Isn't the point of the acetone to degrease, why would i grease? -A heat source. You can also heat the oil to create different effects. 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. The usual mistake on buffing wheels is using too coarse a compound, and then the wheel becomes quite aggressive in removing material. Interesting and informative as always. Also: Do not allow the solution to run, drip or sag. Hardened steel prevents knife blades from dulling and tools from bending and breaking. 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. By using this service, some information may be shared with YouTube. In colloquial use, thin coatings of black oxide are often termed 'gun bluing', while heavier coatings are termed 'black oxide'. They have their place, but doing a whole gun with them isnt that place. on Introduction, looks nice but you are using what is known as heat treatment which will darken steel, not using bluing salts as in gun bluing of rifle barrels all in all very nice instructable, Reply 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. WebHeat the blade for 15 to 20 minutes in an oven set on 325 Fahrenheit if the handle is metal. http://www.lowes.com/pd_188198-316-HG-66420_0__?productId=4764059 Alternatively. That said, heres the truth: The best blueing you can have on a gun is simple, safe to do, but takes a long time. How to Blue Bluing Steel Using Oven Or Torch and Oil Method. Remove any previous finish. This article was co-authored by wikiHow staff writer, Hunter Rising. I have at least three cold blue solutions in my shop including Oxpho-blue, 44-40 and others. 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. LOGIX 20910 Butane Torch, Cooking Torch, Torch for Creme Brulee, Refillable, 9.6 oz, Blue Steel . You risk a big fire that is self sustaining by the reaction itself. 1. When everything is set up, put on your protective gear and then get down to business. Ive used this method in a pinch to make a tap from a cheap mild steel bolt to chase out galled female threads. ], I had to sand and restain the stock, and sanded the barrel from 120 down to 400 grit the pitting was so bad. The hotter the steel, the further the oxygen can diffuse through the oxide coating, so the coating builds thicker before it protects the steel from further oxidation. With HSS you're looking for 2500-3000rpm, M35 or M42 cobalt bits 3000-3600rpm, and carbide 10k-12krpm. In my case I drilled/threaded the metal piece and made a holder with a threaded end. Blue Bluing Steel Ive hot salt blued guns in a shop with the proper equipment and you can shove a river of iron through a single hot salt tank in an afternoon. Help 'blueing' with OA torch on Introduction. "publisher": { I use a pickling paste. What did you use for polishing your pieces and Im guessing you polished then added the chemicals after?Thanks, Joe, Question I have also had good results with 5w/30 motor oil, I've also used two-stroke oil with good results. fascinated with blacksmithing, but have not had an income to even get it started. When youre done and have neutralized & washed off the Express Blue #1 solution, you then should spray down the barrel with water-displacing oil. Fume bluing is another process similar to rust bluing. "https://www.pinterest.com/theshootingmystery/", Picture Information. I thought there was something that could help improve the colors but wasnt sure until I came across this. Heat the Steel. Heating it again to a lower temperature will not introduce additional martensite. Every true outdoorsmans dream! WebBluing is a passivation process in which steel is partially protected against rust using a black oxide coating. . You turn up your nose at crap guns? 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. Old school smiths use something called washing soda to strip oil off guns. Mea maxima culpa - and I left my comment up rather than delete the thread (for now) just so I could reply and admit the My Dumb, rather than skulk away cleanly >;-), Question Its a good process, but it isnt a 1:1 replacement for blueing. Note: I know a plastic container is pictured but always use a metal one! You can make a Caustic Soda KNO3 water bath: 65% Lye (aka sodium hydroxide) Make sure to check every nook and cranny of the components so that you can find any discoloration or blemishes. 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. You can not do this method with Aluminium because it won't reach the temperatures required for bluing, it will just melt. Degrease and heat the items to be blued in a steel pan to about 700F. The de-greasing you do directly affects the uniformity of the browning or blueing. it takes a long time to heat up a long (ie barreled action length) tank that is, oh, three barrels wide. This works well for me. - Ballachy", "Bluing of Steel by Heat Treatment: Why and How it Happens? Keep them in that state while you heat them but be sure to not boil up the tank. It is slightly caustic, so be careful you dont leave it on the gun for long. Shooting Mystery is reader-supported. 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. Then you have to heat the metal. $3.59. Excellent info. Blue Metal Shell 13 in 1 Welding Torch Nozzle Tip Cleaner For Welder Soldering. It was left in a flannel gun case in the back of a moist closet for 25+ years. Free shipping for many products! Its much cheaper anyways. In place of using a hot bath (although at a lower temperature) chemically induced method, it is possible through controlling the temperature to heat steel precisely such as to cause the formation of black oxide selectively over the red oxide. Just let any residual matter evaporate/dry. steel Try it on some unimportant pieces first. Pour in Referring to the post that started all of this; Dyspeptic Gunsmith says: The loose oxide was then carded (scrubbed) off, using a carding brush - a wire brush with soft, thin (usually about 0.002in (0.051mm) thick) wires - or wheel. I don't understand why you are submerging it in oil? 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. I found through my bluing adventure that different oils do act slighty different but ultimately everything I've used has done the job. (Its Crystalline Potassium Nitrate 100%) $6.18 ", not only fun, but also profitable. Acetone is also useful for de-greasing the barreled action. Bear in mind not to touch the walls of your container as you don't want to disturb the process of what's happening! 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. By signing up you are agreeing to receive emails according to our privacy policy. Always wear goggles and gloves when operating a propane blow torch. (meaning oxygen atoms are able to attach themselves to the outer layer of the steel)We did this with an electromagnet! 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. 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. 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 If a bank transfer is made but no receipt is uploaded within this period, your order will be cancelled. Its nice when something can be re-used a time or two, especially when used in diversified ways. 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. "headline": "How to Blue Stainless Steel in 5 Easy Steps: Complete Guide", Usually, you can find the manufacturers recommended ratio in the product manual. I am using bronze, is it for a polish? The blueing salt bath will be at about 286 to 292F, and as it is bubbling away, it is losing water, and the boiling point of the solution keeps climbing. I handed a buddy my wallet and cell phone, and stepped under the safety shower and got wet. Commercial products are widely sold in small bottles for cold bluing firearms, and these products are primarily used by individual gun owners for implementing small touch-ups to a gun's finish, to prevent a small scratch from becoming a major source of rust on a gun over time. Did you make this project? Ive learned a LOT. It will instantly vaporize into steam and splash all over you. I hope to someday have good knowledge to pass on to people, heh. Sometimes at this point, I come just a fraction away from the heat to go through colours a bit slower. It also looks good on AK type weapons of which I have three to park. On this Wikipedia the language links are at the top of the page across from the article title. THANKS DG. Its durable and wears well. Great column, and thanks for all the responses to various questions and comments. Itll take perhaps 20 minutes to really dry down. You can reassemble the gun after. There are also methods of cold bluing, which do not require heat. Heat source You will require at least one burner for bluing salts and two hot water burners. You MUST plug your barrels, gas cylinders, remove your pistons, etc. Drop a piece of hot charcoal in it and it will burn in the absence of any atmosphere as the nitrate provides the oxygen for the reaction. Answer 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. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. I like 1.5 wide shop cloth myself). Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. You can then use a soft brush to gently remove all the residue of the cleaning solution on the components. However, there are certain characteristics differences between the materials so knowing clearly how to blue stainless steel is really important. 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). You might need two applications to clean up more deeply rusted spots. Then remove it from the degreaser, don't be tempted to wipe it off with anything. If you need to use a blow torch, focus the flame tip on the area you want hardened. Stand on end over some paper towels to drain. Drift the sights back in from the right side of the barrel. You can improve your results by doing two things: 1. to blue / heat anodize stainless steel Enjoy! 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.
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