Holy crap, did that reaction hurt like hell. This process is also the only process safely used to re-blue vintage shotguns. The thickness of the oxide is a function of how hot you heat the steel (The color is due to interference of light reflecting from the surface of the oxide coating, and light reflecting from the oxide-steel interface). I saw you reference a coleman stove and propane tank for heating solution. And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. The differential cooling causes patterns of colors to appear as well as hardening the part. I learned something slightly different than what you are teaching and that is I am willing to pay people like you to do this kind of stuff for me. Oil and grease really are the enemy because youre trying to (literally) corrode the metal. This signifies that the steel is tempered. Hunter Rising is a wikiHow Staff Writer based in Los Angeles. Thank you all who had a part in the production of this important information! With HSS you're looking for 2500-3000rpm, M35 or M42 cobalt bits 3000-3600rpm, and carbide 10k-12krpm. WHERE or when would the torch get used? I have always wondered about storage in gun soft cases or the foamed Hard cases, and humid or dry, heat and cold. Various processes are used for the oxidizing process. My apologies for the background noise in the first half of the video We had compressors running where I By using our site, you agree to our. 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. Dont. The actual temperature of the steel depends on the carbon content inside. My current rifle builds are going to be parkerzied. 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. on Introduction. Thoroughly degrease the area to be reblued with acetone. Again, dont mess around with these chemicals and only handle them with extreme attention. Let them cool down as you take a closer look at the bluing effect. The difference is immersion in boiling water for bluing. This is one of the reasons rust and fume bluing are generally more rust-resistant than other methods. This heating forms the blue on the plate. I've never done anything like this but want to try. Please be careful with the cold bluing solutions. This process leaves a deep blue-black finish. Thanks to all authors for creating a page that has been read 914,567 times. Soft, low-carbon steel was used, but strong materials were needed for the receivers of firearms. This works well for me. Question 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 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. Mess. In the automotive world this is a common practice. Bluing is a process usually used by gun owners and firearms manufacturers to improve the aesthetic value of their weapons. Any more advice is welcome SteelJunkee Joined May 6, 2018 Messages 891 I like parkerization on some of my milsurps. I like 1.5 wide shop cloth myself). "@type": "ImageObject", Keep heating the steel until you notice a blue color form on the metal. Heating up a tank on the kitchen stove. It is not nice stuff. Approved. I have to finish my M76 and Galil first and buy the materials. Also, the results you indicate are typical of still having some oil on the gun. "keywords": ["how to blue stainless steel"], Safety is the number one priority so protect your body as much as possible. Are you sure you want to heat the steel to 700F in that early step? Then you can express blue it with a propane torch and a tank of boiling water. 84 or Du-Lite 3-0. Cooking off the more volatile hydrocarbons leaving the heavier ones produces a different effect yet again. 1. You will need:-2x containers (one of them preferably being metal for the oil)-oil -unleaded petrol/Acetone/Terpentine/Rubbing alcohol or any goo 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. They melt at, oh, somewhere about 280F. Heat the gun parts. Slow rust blueing can take a week or more to accomplish, but it is a durable blue job like no other. Its for mild steel, which must be greased, oiled or otherwise coated with something to stop it from rusting almost immediately. Then you sight down the barrel and you see dips and waves in the barrel profile. I believe the change of color is due to a growing thickness of an oxide layer. You might also want to read our article on how to easily darken stainless steel or blacken stainless steel for more ways to personalize your gear. 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. the cost of the burners or heaters to heat up all these tanks really only practical if you have natural gas available I had to sand and restain the stock, and sanded the barrel from 120 down to 400 grit the pitting was so bad. Another good test for determining when the steel is ready is seeing if a magnet sticks to its surface. 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 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 torch comes in when you first apply the Express Blue. However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using Hydrochloric Acid). Thank you so much for sharing such a great article. 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. It takes practice. ")You're ABSOLUTELY right. 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. One can generally use the same solution to brown as to blue. Share it with us! Follow the instructions. Ferrari installs valve seats in their aluminum cylinder heads via robot. No. 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. You need to constantly be adding in a bit of water to bring the boiling point back down into the range you need. Once the solution reaches its boiling point, turn down the burner to about one-third of the boiling temperature and let it stay there. I wouldnt use this bluing method for these items. You should note that the blue layer is rather delicate so dont treat it roughly. 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. 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. 4 years ago Oh mas oui.Express blueing, slow rust blueing, hot salt blueing, nitre blueing, carbona blueing all are better than cold blueing. (NaOH from Ebay soap supplies). It is also used by machinists, to protect and beautify tools made for their own use. 1/16-inch pivot wire has a circumference of ~0.2in. The process isnt intended for bronze. It repeats the process adn by the time the head moves on to the next station all the parts are seated presumably for the life of the head. 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. you may benefit from the use of a gas lense as well. How to Blue Bluing Steel Using Oven Or Torch and Oil Method. Ive gotten hot blue salts on me splashed into my hair. And for the next (after the next) installment, how to do hard case coloring. I found through my bluing adventure that different oils do act slighty different but ultimately everything I've used has done the job. We strongly advise that you only push through with this process if you are absolutely confident that you are able to perform the necessary precautions. For most of the time, guns that utilize carbon steel components are the prime candidates for bluing but its totally possible to color stainless steel blue as well. Keep a fire extinguisher near your workstation in case of a fire. Blue Metal Shell 13 in 1 Welding Torch Nozzle Tip Cleaner For Welder Soldering. Pull it out of the tank and place on a drain rack. And thats about everything you need to know about stainless steel bluing. So I buffed down the barrel with steel wool and started over heating the barrel in the oven before taking it outside to add the solution (which is nitric acid). Reply Hot NaOH is so alkaline it is great as dissolving organic materials. 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. Rinse them in a cold water tank after. The downsides are: the safety issue, which I laid out above, and which youve made clear. Before operating your torch, read all instructions so you know how to handle it safely. "dateModified": "2022-03-27", Oil binds with the metal and prevent it from getting air/chemicals to corrode. wikiHow marks an article as reader-approved once it receives enough positive feedback. I use a pickling paste. That surface rust on the barrel could be polished off easily. Last Updated: May 13, 2022 I am simply trying to learn anything and everything that there is to know about it. "datePublished": "2022-03-27", Accidental exposure to the chemicals could result in serious injuries. 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. Most knives, rifle receivers and barrels are heated to at least 1200F and cooled and drawn at 490F-700F.