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. To heat this, I use a Coleman camp stove and a 15# jug of LPG gas. Central Texas. I like 1.5 wide shop cloth myself). 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. 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! At least one of the cold bluing solutions contains selenium dioxide. Brilliant blues. I've never done anything like this but want to try. Metal Finishing Guru. Blue or Black rust is complete passivation of the steel surface Fe3O4. "height": "800", you may benefit from the use of a gas lense as well. 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 ? It is slow rust blueing. Think big scars. -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. Christopher Graham writes all the content and reviews on this site with the help of his team of hunters and shooters. Technically speaking, bluing is more or less a conversion of red iron oxide (Fe2O3) to black iron oxide (Fe3O4). By signing up you are agreeing to receive emails according to our privacy policy. Degrease a pad of 0000 steel wool with acetone. Thanks for always being so willing to share, Sir. Heres instructions from Mark Lee Supplies on using their Express Blue #1. Thanks, 8 years ago Fill a heat-safe container with water or oil deep enough to submerge your steel. Though it may seem tricky at first, youll be glad to have figured it out because knowing how to blue stainless steel will come in handy from time to time. My dad keeps his in a big safe with large desiccant packs that he threw in there. DIY Gun Bluing And I work alone in my shop, and lack the required (IMO) safety facilities that are needed. $3.59. -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). Vegetable oil has a higher boiling point, so the hot steel will take longer to cool and reduce the chance of it cracking. Hot bluing is the current standard[6] in gun bluing, as both it and rust bluing provide the most permanent degree of rust-resistance and cosmetic protection of exposed gun metal, and hot bluing takes less time than rust bluing. THANKS DG. Every true outdoorsmans dream! Many double-barreled shotguns are soft soldered (lead) or silver brazed together and many of the parts are attached by that method also. This will keep the bluing from adhering to the sharpened edge. 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. You can use a heat gun, a blow dryer, or a torch for this. 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. Most cold blueing agents contain some selenium dioxide in them to enable to them to react at room temps. 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. I wish this article had come out sooner, since I did not know that 0000 steel wool may have oil in it. 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. It is one smoooooth profile, from one end to the other. Cold blues will 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. So you will get a shinier finish. Make sure the piece is chemically clean, sandblasting followed by power wire brushing is good then stop heating when you hit purple because the heat will travel. Apply heat to your object and heat up gently and equally. You can improve your results by doing two things: 1. Also: Do not allow the solution to run, drip or sag. If the solution is still boiling vigorously, then you can expect the bluing to happen naturally. Were committed to providing the world with free how-to resources, and even $1 helps us in our mission. 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. Once the steel is clean, you can begin heating it up. Im asking because theres a guy on YouTube recommending Brown Express first, then several layers of Blue over that. 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. This is often achieved without chemicals by simply heating the steel until a blue oxide film appears. It will instantly vaporize into steam and splash all over you. . This is not necessary as long as you can hold your item appropriately and not cover where it is to be heated. While the rod may heat some by conduction, it wouldn't get hot enough to start the color-forming process. Where/how did you think I got to the point I could make nice guns? Ive dealt with strong acids and strong bases in lab work, and I fear the strong bases more. How to Harden Steel: 10 Steps (with Pictures) - wikiHow 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. First, let us go through a couple of bluing concepts that you have to know in order to achieve the desired result. 3.3k. Holy crap, did that reaction hurt like hell. The part you want to place in the receiving part is cold often just placed in a freezer for a few hours. Battery acid is childs play compared to blueing salts. There are 10 references cited in this article, which can be found at the bottom of the page. Black oxide provides minimal protection against corrosion, unless also treated with a water-displacing oil to reduce wetting and galvanic action. 3 years ago After the Civil War they switched to another process. 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 Any more advice is welcome SteelJunkee Joined May 6, 2018 Messages 891 Do this outside, so you can do this next part: Just whip the steel wool at arms length to extract the excess acetone. If you have very light, fine pitting, you can polish this out. Initially case hardening was used but did not offer any aesthetics. Excessive buffing on stainless steel could result in a grainy appearance so do it with care. At 700, you start losing your blues and the steel starts becoming a wispy silvery-blue, not a dark brilliant blue. It is generally employed on smaller parts such as pins, screws, sights, etc. "image": { Hot bluing should never be attempted on aluminium, as it reacts it usually dissolves in the caustic salt bath. 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. Heat the Steel. Ive learned a LOT. (meaning oxygen atoms are able to attach themselves to the outer layer of the steel)We did this with an electromagnet! There are many simple ways to achieve good bluing. You turn up your nose at crap guns? Bluing also helps to maintain the metal finish by resisting superficial scratching, and also helps to reduce glare to the eyes of the shooter when looking down the barrel of the gun. That doesnt happen easily or by accident. It is usually sold in a 1lb bottle for $3, you'll need 3 or 4 pounds probably. I use a pickling paste. I really appreciate you taking the time to share it DG. As I'm bluing round pieces I slowly and evenly rotate the piece over the flame to equally disburse the heat. For modern uses of black oxide, see, Learn how and when to remove these template messages, Learn how and when to remove this template message, "How To Remove Rust From A Gun Without Damaging Bluing? 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. If the magnet doesnt stick, its ready to be pulled away from the heat. Large scale industrial hot bluing is often performed using a bluing furnace. for 6-8 hours. on Step 1. Pull it out of the tank and place on a drain rack. They are still sometimes used by gunsmiths to obtain an authentic finish for a period gun of the time that rust bluing was in vogue, analogous to the use of browning on earlier representative firearm replicas. The mixed fumes of the acids produce a uniform rust on the surface of the parts (inside and out) in about 12 hours. . Wear thick gloves so you dont burn yourself. Keep posting like this. Heating it again to a lower temperature will not introduce additional martensite. Ill wait for and look forward to your article! I have always wondered about storage in gun soft cases or the foamed Hard cases, and humid or dry, heat and cold. Youll get a dark spot right there. This process was repeated until the desired depth of color was achieved or the metal simply did not color further. Keep a grade B fire extinguisher nearby in case of a fire. It also looks good on AK type weapons of which I have three to park. Blued Pivot Steel You then oil or wax over the finish when youre done. All About Bluing Steel Stainless Steel Necessary Gears and Tools Procedure Step 1: Ready the bluing tank Step 2: Process the components of the gun Step 3: Suspend Blacksmith products to this day may occasionally be found made from blued steel by traditional craftsmen in cultures and segments of society who use that technology either by necessity or choice.[5]. Hardening will cause it to be more brittle, which could cause the hammer to chip and cause injury. Oil-free steel wool is also sold by woodworking shops. Steel However, rust bluing small areas often match, blend, and wear better than any cold bluing process. 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

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