you may benefit from the use of a gas lense as well. Ill wait for and look forward to your article! (And taking, out of *your* hide). "height": "800", gas coverage is another big one. Heating up a tank on the kitchen stove. 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. 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! }, 35% Potassium nitrate (aka saltpeter), http://castboolits.gunloads.com/archive/index.php/t-36054.html. Torch on Step 1. The mixture is heated to 310 to 321C (590 to 610F) and the parts are suspended in this solution with wire. Thanks, 8 years ago When you buy through links on our site, we may earn an affiliate commission. Various processes are used for the oxidizing process. Its for mild steel, which must be greased, oiled or otherwise coated with something to stop it from rusting almost immediately. Acetone is also useful for de-greasing the barreled action. Fe3O4 requires chemicals and/or heat to push the iron to full oxidation. My current rifle builds are going to be parkerzied. Its a good process, but it isnt a 1:1 replacement for blueing. ], 4 Ways to Blue Steel - wikiHow I hope to someday have good knowledge to pass on to people, heh. For hazzalandy: carbon content has nothing to do with the color process, it is only the temperature you heat to, and to a lesser extent, the time spent hot. Mix equal parts of cream and liquid Brownells Oxpho Blue. Often it does provide an adequate cosmetic touch-up of a gun's finish when applied and additionally oiled on a regular basis. In colloquial use, thin coatings of black oxide are often termed 'gun bluing', while heavier coatings are termed 'black oxide'. Ill detail why. 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. 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. ")You're ABSOLUTELY right. Wear thick gloves and a face mask before you quench your steel so the water or oil doesnt splash onto your hands. 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. You might need two applications to clean up more deeply rusted spots. Bluing (steel) - Wikipedia Brilliant blues. However, oil may spill and create a fire hazard if the steel is put into the oil too quickly. 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. ", the wrong quality steel. So you will get a shinier finish. Only 3 left in stock - order soon. You can experiment ultimately what oils to use. "headline": "How to Blue Stainless Steel in 5 Easy Steps: Complete Guide", Its the corrosive gift that just keeps on giving. Hot NaOH is so alkaline it is great as dissolving organic materials. Bluing only works on steel, cast iron, or stainless steel parts for protecting against corrosion because it changes iron into Fe3O4; it does not work on non-ferrous material. Use a smaller toaster oven if your piece of steel fits inside. 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! It can soften up some paints and plastics. Not only does it give you an alchemical feeling of satisfactionbut it also gives the metal a finish to stop corrosion. Still, you will find that cold blues dont last. My apologies for the background noise in the first half of the video We had compressors running where I The color is oxide, but I believe you can scrape it off. Include your email address to get a message when this question is answered. for 6-8 hours. "https://www.reddit.com/user/theshootingmystery" That said, heres the truth: The best blueing you can have on a gun is simple, safe to do, but takes a long time. If you havent done it before, wait until I mention some items about it. How to remove discoloration from heat? - Forums - Miller Welding Here is a simple way to get a blued finish on steel. Oil and grease really are the enemy because youre trying to (literally) corrode the metal. Technically speaking, bluing is more or less a conversion of red iron oxide (Fe2O3) to black iron oxide (Fe3O4). The usual mistake on buffing wheels is using too coarse a compound, and then the wheel becomes quite aggressive in removing material. Again, dont mess around with these chemicals and only handle them with extreme attention. This heating forms the blue on the plate. Use Hot Bluing And Cold Bluing To Give Your Steel That They have their place, but doing a whole gun with them isnt that place. However, if the bluing effect isnt satisfactory, then you can try giving the components an acid bath (using Hydrochloric Acid). Keep them in that state while you heat them but be sure to not boil up the tank. 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. 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. Can a softly tempered piece be re-tempered harder without going through the hardening procedure again? While the rod may heat some by conduction, it wouldn't get hot enough to start the color-forming process. Not blessed with a climate controlled safe. When putting water in your boil-out tank, use distilled water if you have water with high mineral content. No. 'Browning' is controlled red rust Fe2O3, and is also known as 'pluming' or 'plum brown'. And thats about everything you need to know about stainless steel bluing. Mess. 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. Isn't the point of the acetone to degrease, why would i grease? If you have a wood or phenolic handle, use a propane torch to heat the blade only for about two minutes. Heat the area with a torch until it stops sweating. Always back your paper when youre polishing over edges and up against features. It will first turn gold, then orange, then red, purple, blue and then dark grey! Bluing is also used for providing coloring for steel parts of fine clocks and other fine metalwork. The process isnt intended for bronze. Ive used this method in a pinch to make a tap from a cheap mild steel bolt to chase out galled female threads. Cold blueing is OK for touchups, at best. It was left in a flannel gun case in the back of a moist closet for 25+ years. There can be different layers you have to apply. Wear safety glasses and gloves while working with hot metal. Get it Feb 25 - 27. The wire is extremely small in diameter, so you have to take that into consideration. - Ballachy", "Bluing of Steel by Heat Treatment: Why and How it Happens? In the automotive world this is a common practice. The mixed fumes of the acids produce a uniform rust on the surface of the parts (inside and out) in about 12 hours. Every true outdoorsmans dream! A few safety items: They melt at, oh, somewhere about 280F. Im not responsible for marital discord as a result of gun projects attempted on the kitchen stove. Dont touch the metal with your bare hands since it could cause severe burns. highfour, case hardening is a bit different from what you describe.. Usually, the steel needs some time in a medium that will allow carbon to penetrate the surface, and we are talking 15 minutes to several hours. Nowadays, even mild steel does have a certain amount of carbon in the alloy, which can explain your observations, if you google "super quench," you should find a waterbased quench that is rumoured to do the same, but in my humble opinion, water can do just that as well. Ok you gotta help me out herewhen I was studying mechanical engineering a good few years back a project I done involved using a compression fit of 1/4" thick plate steel into 1" thick steel rod, both mild steel. 99. 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. The differing rate of cooling for each area produced a different color creating that rainbow effect. You can reassemble the gun after. 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. 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. 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. Excellent info. Red rust is Fe2O3, and is incomplete rust it will continue allowing the surface to corrode over time hence the oil or wax. Oil binds with the metal and prevent it from getting air/chemicals to corrode. *Potassium Nitrate is an oxidizer. 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. The part you want to place in the receiving part is cold often just placed in a freezer for a few hours. Question The steel is also used for producing great police flashlights with awesome durability. Alternatively.

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