Crystal Mclaughlin Obituary, Smith And Wesson 38 Special 4 Inch Barrel Holster, A Death In Oslo Update, Royal Stafford Home Goods, Sharika Completed Her Mba From A Prestigious University, Articles B

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. If you want it smoother/shinier, you can polish up to 600 grit, with wet-or-dry paper. 99. Blue or Black rust is complete passivation of the steel surface Fe3O4. 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. This is how Colt made their rifles and pistols prior to Civil War you can read all about the process. So unless you have sufficient equipment and skill, its advised to let a professional perform the bluing for you. Heat the gun parts. -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). These work by depositing a coating of copper selenide on the surface. Only 3 left in stock - order soon. After the Civil War they switched to another process. The rod was heated and the plate 2" square was inserted and the rod shrunk onto it. Oxides come after its been heated to a red heat and cooled. Is the torch used to heat metal ..ONLY.with Cold bluing? Dont pour water in to your bath! Any more advice is welcome SteelJunkee Joined May 6, 2018 Messages 891 Repeat 3 times. I hope to someday have good knowledge to pass on to people, heh. Take them out after a couple of minutes and then wipe them clean to remove excess oil. [ 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. Metal Finishing Guru. You wouldnt need salts. Just remove the blue/rust, degrease, dry, then blue/card/boil-out/oil/drain. Try it on some unimportant pieces first. Degrease and heat the items to be blued in a steel pan to about 700F. Reply I have at least three cold blue solutions in my shop including Oxpho-blue, 44-40 and others. Im talking like 90+ minutes to heat the salt bath to 285F. By using this service, some information may be shared with YouTube. "author": "Christopher Graham", Still, you will find that cold blues dont last. You can use a heat gun, a blow dryer, or a torch for this. "https://www.facebook.com/Shooting-Mystery-110244180901951", The cross section and size of parts affect the outcome of the finish and time it takes to achieve. The rust then turns to black-blue Fe3O4. You then oil or wax over the finish when youre done. 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. The mixed fumes of the acids produce a uniform rust on the surface of the parts (inside and out) in about 12 hours. "@context": "http://schema.org/", Hunter holds a BFA in Entertainment Design from the University of Wisconsin - Stout and a Minor in English Writing. Wait for 10 15 minutes and then take out the components. But the article was very informative. Be careful since considerable heat might be generated in the process. Theres nothing wrong with your method, but is is very hazardous, especially to people who have never done anything like it before. "@type": "ImageObject", Black iron wire You will need black iron wire to tie around any object you This crucible was heated to 730C (1,350F) for up to 6hours (the longer the heat was applied the thicker the case hardening). Both refer to the same chemical process for providing true gun bluing.[1]. For the final step, we let the components cool down in water displacing oil. 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. Fill the tank with a suitable amount of water then add in the bluing salt using the correct ratio. Always back your paper when youre polishing over edges and up against features. It provides the stainless steel surface with a layer of protection, giving rust and corrosion resistance while reducing potential glare as well. I wouldn't recommend either. "Bluing" is the process of oxidizing steel to create a durable, corrosion-resistant layer. Save my name, email, and website in this browser for the next time I comment. The difference is immersion in boiling water for bluing. the cost of the burners or heaters to heat up all these tanks really only practical if you have natural gas available Help 'blueing' with OA torch Youll want to clamp on the barrel directly under the sight youre about to drift out. Put all the components into the tank and wait for 5 15 minutes. Ive gotten hot blue salts on me splashed into my hair. "name": "Shooting Mystery", That surface rust on the barrel could be polished off easily. These include hot bluing, cold bluing, niter bluing, and so on. Its a good process, but it isnt a 1:1 replacement for blueing. How to Blue Bluing Steel Using Oven Or Torch and Oil Method Let them cool down as you take a closer look at the bluing effect. Every true outdoorsmans dream! You can not do this method with Aluminium because it won't reach the temperatures required for bluing, it will just melt. "keywords": ["how to blue stainless steel"], Submerge in water and scrape edge. For this Instructable I'm using thread cutting oil. Dont. Stand on end over some paper towels to drain. http://www.lowes.com/pd_188198-316-HG-66420_0__?productId=4764059 Polish to at least 400 grit. Besides those, you must also have water displacing oil and cleaning solution (Dicro-Clean 909). You might be able to start at 320 grit. "mainEntityOfPage": "https://shootingmystery.com/blue-stainless-steel-beginners/", Its essential to keep stirring the tank to prevent the forming of hot and cold areas. Torch 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. This finish allows them to be stored in high-moisture conditions, like sports bags, without rusting. The wire is extremely small in diameter, so you have to take that into consideration. 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 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. ", steel". What is your opinion of the 2 to 1 lye and potassium nitrate bluing solution? Initially case hardening was used but did not offer any aesthetics. Your container should be relatively larger than your object. There can be different layers you have to apply. Heating up a tank on the kitchen stove. This step should be done before heating the steel, as the steel should be quenched immediately after removing from heat. 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). 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 downsides are: the safety issue, which I laid out above, and which youve made clear. The "turning blue" process has nothing to do with hardening of the steel, or its compression. Theres a reason I didnt pursue a career in chemistry. Please be careful with the cold bluing solutions. Although the steel parts, such as anOrdains watch hands, are near enough miniscule, each It would be a good idea to get some gloves on. DIY Gun Bluing Soft, low-carbon steel was used, but strong materials were needed for the receivers of firearms. 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). Even at room temperature, the salts are highly caustic and will eat into your eyes or skin in seconds not minutes. ", informative and did not use technical language and concepts that would have left me floundering and none the wiser. 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. To heat this, I use a Coleman camp stove and a 15# jug of LPG gas. 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. Ill be saving this for the future. Use your torch to bring up 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. This is an alternative method for creating the black oxide coating. Remove any previous finish. Bluing is often a hobbyist endeavor, and there are many methods of bluing, and continuing debates about the relative efficacy of each method. Stainless steel can only tolerate hot bluing and a limited amount of chemicals. My apologies for the background noise in the first half of the video We had compressors running where I 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. Metal "@type": "Organization", The ideal setup is a pair of long sleeve gloves along with splash goggles and a face mask. You need to constantly be adding in a bit of water to bring the boiling point back down into the range you need. All blued parts still require oiling to prevent rust. This is as deadly as the lye-based hot salts, but more for the temperature of a large batch of salts. Dont just leave them on a surface that could corrode or burn), get a new patch into the hemostats, soak, wring out, and keep going. 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. The robot gives the steel valve seat a quick blast with liquid nitrogen and drops the seat right in place. The cotton gloves insulate your fingers from the heated barrel, and they prevent oils from your skin from getting on the raw steel. Im not responsible for marital discord as a result of gun projects attempted on the kitchen stove. Tenifer get's up to (1077F) last I checked and was the 5th step in Glock heat treating after that they Pakerize it. 3.3k. Question Bluing is most commonly used by gun manufacturers, gunsmiths, and gun owners to improve the cosmetic appearance of and provide a measure of corrosion resistance to their firearms. It will first turn gold, then orange, then red, purple, blue and then dark grey! However, oil may spill and create a fire hazard if the steel is put into the oil too quickly. | 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. OK, now with the sights out and the trigger group off, you can put on the rust/blue remover on the barrel/action. If the solution is still boiling vigorously, then you can expect the bluing to happen naturally. Ive used this method in a pinch to make a tap from a cheap mild steel bolt to chase out galled female threads. 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. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. I had to sand and restain the stock, and sanded the barrel from 120 down to 400 grit the pitting was so bad. There are many simple ways to achieve good bluing. 2. 2 years ago And for the next (after the next) installment, how to do hard case coloring. It is named after the blue-black appearance of the resulting protective finish. Heat the area with a torch until it stops sweating. Excellent info. Not only does it give you an alchemical feeling of satisfactionbut it also gives the metal a finish to stop corrosion. Fortunately, this is easily had at any hardware store: WD-40 is a water displacing product, not a lubricant (contrary to widespread advertising). Should something happen, seek medical help right away. Also remember, by adjusting the heat you can get whatever color you want. To shrink, I assumed you heated the steel plate only, to expand the hole in it. Blued Pivot Steel Cold blues will Best Gun Bluing "https://www.pinterest.com/theshootingmystery/", How to Blue Bluing Steel Using Oven Or Torch and Oil Method. (NaOH from Ebay soap supplies). Safety notes: Dont use an aluminum pan. 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. -A heat source. Do all the prep you would for express or rust blueing, especially degreasing. Oil and grease really are the enemy because youre trying to (literally) corrode the metal. You want 0000 steel wool for carding between coats. FigureLLC. I didnt drop outta my mommas womb being able to do this stuff. Christopher Graham writes all the content and reviews on this site with the help of his team of hunters and shooters. on Introduction. Holy crap, did that reaction hurt like hell. 4 years ago Approved. Can a softly tempered piece be re-tempered harder without going through the hardening procedure again? This process is also the only process safely used to re-blue vintage shotguns. Being prepared is important if you can not measure the temp. If youre using acetone to de-oil, dont be afraid to do it more than once. This is not necessary as long as you can hold your item appropriately and not cover where it is to be heated. 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. [4], Bluing can also be done in a furnace, for example for a sword or other item traditionally made by a blacksmith or specialist such as a weapon-smith. Rinse them in a cold water tank after. The content is not meant to be a replacement for professional service advice. 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. I am simply trying to learn anything and everything that there is to know about it. It takes practice. Slow rust blueing can take a week or more to accomplish, but it is a durable blue job like no other. Hopefully these concepts suggest caution and diligence for what you are doing. 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 If you tempered the steel with a blow torch, set the metal on an anvil or another large steel surface to conduct the heat. 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. This article was co-authored by wikiHow staff writer, Hunter Rising. Treating with an oiled coating enhances the protection offered by the bluing. Its the corrosive gift that just keeps on giving. Sign up for wikiHow's weekly email newsletter. Then, use a pair of tongs to carry the steel to a container filled with water or vegetable, and submerge the hot metal in the liquid. 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. The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. 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 . This is a great time to point out that leaving guns in gun cases, especially the woolen/fleece cases, in the back of a closet, is one of the most sure-fire ways to rust the value completely out of a gun. Use a backing block of wood or even a Pink Pearl rubber eraser. Make sure to check every nook and cranny of the components so that you can find any discoloration or blemishes. What I forgot to mention in all of this is a detail that seems mundane, but it critically important: Wear cotton gloves. http://cdn.spectrumbrands.com/~/media/Spectracide/Files/MSDS/SpectracideStumpRemoverGranulesSDSApr15.ashx. Both ingredients are super cheap. While still hot and while wearing rubber gloves rub the bluing compound Into the steel with the steel wool. No. In fact most guides no matter their material cast iron to bronze and often bearing races are installed the same way. Quenched steel is harder, but it becomes more brittle. Think big scars. the cost of all the tanks you need for rinse & boil-out I think I was drinking heavily (and likely doing stupid things in my shop with high heat and flammables at the time, possibly while juggling chainsaws) at the time I made that comment - without reading carefully. Use a coffee can or similarly shaped container as your quenching chamber. Dont drop or try to bend the steel once its removed. Bluing - Finishes for Metal - I Forge Iron I wasnt planning on doing it for a few months. THANKS DG. It is hazardous. Why do you bother with all this crap?. Add 5 lbs of regular table salt to the water. Then, you can put the components back into the bluing tank and increase the temperature until you see the blued steel. 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. Once you see it turn golden, the process has started and colours will change fairly quickly! A Pocket Sundial From a Broken Pocket Watch! Its for mild steel, which must be greased, oiled or otherwise coated with something to stop it from rusting almost immediately. There's also blued hardware available, like nuts, bolts, screws, and hinges. The actual temperature of the steel depends on the carbon content inside. I like parkerization on some of my milsurps. 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. In the automotive world this is a common practice. How to Blue (Bluing) Steel Using Oven Or Torch and Oil Use Hot Bluing And Cold Bluing To Give Your Steel That There wasnt a whole lot of pain just yet until my buddy took the safety bottle of vinegar solution used to neutralize the alkaline NaOH salts, and then the pain was there. just fyi, the old school method of case hardening steel is to get the piece so hot that a magnet will no longet stick to it and quickly quench it in used motor oil. How to Blue Stainless Steel in 5 Easy Steps: Complete Guide this article statement I want to add rainbow color to safety razor blades that would be used again, how can I do this? 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.. 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. Bluing (steel) - Wikipedia Torch 4 years ago 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. My first time wasnt a stunning success. 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 Metal Shell 13 in 1 Welding Torch Nozzle Tip Cleaner For Welder Soldering. Once you get the colour you want, go outside to your oil container and fully quench your object into the oil! It had been thoroughly degreased before my first attempt, but in trying to repair a poor result, I apparently contaminated it a bit. Theres a reason why I buy up clapped-out guns and stuff where people look at me with a WTF?! As mentioned, cold bluing can be done at room temperature with decent results. The potassium nitrate will liquefy at around this temperature and blue your items at a relatively quick speed. 500F-600F is often all that is needed and the parts can be done over and over again you just have to clean between each attempt. blue steel on Introduction, Hello my name is Joe and Im doing a project where Im trying to achieve the same outcome. However, there are certain characteristics differences between the materials so knowing clearly how to blue stainless steel is really important. you may benefit from the use of a gas lense as well. 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 are a fantastic resource for all of us here. 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. 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. When youre done and have neutralized & washed off the Express Blue #1 solution, you then should spray down the barrel with water-displacing oil. At 700, you start losing your blues and the steel starts becoming a wispy silvery-blue, not a dark brilliant blue. For more information on using a blowtorch and protecting the steel, scroll down! 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. Ferrari installs valve seats in their aluminum cylinder heads via robot. 1. My dad keeps his in a big safe with large desiccant packs that he threw in there. Not blessed with a climate controlled safe. to blue / heat anodize stainless steel This will keep the bluing from adhering to the sharpened edge. Bluing Stainless Steel: What You Can and Cant Do - Forging World Next you hold it in front of your heat source until a blue oxide layer covers the whole blade edge. It does provide good rust resistance, which is improved with oil. I now want to reverse the process so I can drill and tap the metal tip. I just had my first experience rust browning a barrel. I'm a professional knifemaker and use many very high-temp methods including quenching 1,600F steel in pre-heated oil - I know what I'm talking about, 'cause I still have 10 fingers and my eyesight.