Charcoal bluing process. Additional information.
Charcoal bluing process. The exception being the wartime 1917 mentioned above.
Charcoal bluing process Behind the Scenes: The Restoration of Tom Selleck’s Winchester 1886. Colt used the same mixture of ground charcoal and charred animal bone in the bluing furnace except the small parts were put in cast iron pots for the bluing process. Temper Blue, is Colt's, Smith and Wesson's, and Savage's and maybe others method of finishing the firearm using the charcoal temper blue technique. I am about halfway through my carving, the engraving is done, which means I will be working on the barrel soon. This process is a closely guarded trade secret. . There are several methods to blue gun barrels, such as hot bluing, cold bluing, rust bluing, niter bluing, charcoal bluing, and heat bluing. To start viewing messages, select the forum that you want to visit Presented for you today is a unique restored 1911 from 1939. It's not a one step process like nitre or heat bluing though there are a couple of quicky methods around for small parts. The process was born out of necessity: firearms needed protection against the relentless ravages of rust and corrosion. Another technique called rust bluing is rarely done because it takes so long. The normal heat of charcoal bluing will not phase silver or gold inlays. It's a type of tempering of the metal and The process was called 'Carbona' by the American Gas Furnace Co. Live life without a net - You can try not leaving it in as long but salts get pretty dark. I can attest from personal experience to this pitting happening. All of the heat blues are affected this way whether done in open hearth charcoal method or Does any one have information about carbonia charcoal bluing process Thanks . Im sure I can find ruined/scrap parts from similar pistols and use those as test/learning peices. Like color case hardening, the nitre blue color is the result of the heat phase and tempering process. A barrel was packed in charcoal dust, and heated to around 800f for a few hours. Boge. Unlike other finishing methods, charcoal bluing is less about adding a chemical layer and more about encouraging a natural reaction in the metal itself. In this article, we’ll dig into the origins of charcoal bluing, why it was such a prized technique, and how it changed over time as firearms manufacturers moved into the modern era. Rust bluing and rust browning were a late 18th century development. Logged bob in the woods. That for the name of the proprietary Oil used in the bluing process. In an effort to speed up production the final polish was Color case hardening (sometimes referred to as case-hardening, case color hardening, or surface hardening) is a heat treating process and one of the earliest ways of hardening lower-grade steel. There are lots of photos. Then "card" it with a stick while it is still in the fire for about 30 minutes. I believe their process was charcoal bluing not caustic bluing This is all a learning project, so if all else fails I will try charcoal bluing. Anyway, charcoal bluing gives a different color and hue to the finish than chemical blued coating. There are other methods, all of which are variations of the above methods. The Carbonia oil (a product of American Gas Furnace Co. (The very earliest of the M1911 45acp production pistols (1911/early 1912) were charcoal blued. They are then placed in "carbonizing pots" and subjected to the heat of a 1500F furnace. com Discussion Boards. Colt used the hot salt bluing process on Colt Single Actions produced after WWII, as well as for the Colt Royal Blue used on their high end Pythons. Colt got away from the high polishing because it made the finish so fragile and subject to more rapid wear. The bluing was produced by a carbon from charred ground animal bone and pure Charcoal bluing steel, for example, is typically found in the firearms industry. ) If the steel object requires heat-treatment, can this be performed after the charcoal bluing process is completed? Q-4. It does not, in this metallugist's most humble opinion, involve heating the metal The one charcoal bluing that I attended had the barrel in the charcoal for about 45 minutes total. The following is a quote from a 2007 correspondence with Roy Jinks: "The bright blue process depends on a very bright finish. My understanding is that the oldest bluing process is charcoal bluing. the color and how shiny the finish is depends entirely on how well the metal is polished BEFORE the bluing process. ] The longer they are held at 1525 or more Through trial and error, here is my process: 1. S's "Bone Charcoal Case Color" and "Carbonia Blue/Charcoal Blue. The benefit of this process is that a thin layer of forge scale usually forms that provides a layer of protection to the finish and makes it more durable. Moisture is formed by burning charcoal that has been charred at a modest temperature, say 700F. Used more recently to reproduce the original finish on carbon steel firearms without substantially Get Textbooks on Google Play. You may have to register before you can post: click the register link above to proceed. Traditional finish for Colt triggers, screws, and Winchester loading gates. H. Small parts were a turquoise colored 'fire-blue', the trigger, safety and extractor. Bluing, sometimes spelled as blueing, is a passivation process in which steel is partially protected against rust using a black oxide coating. Afterwards, the parts were removed from the furnace and quenched. The charcoal gives off CO, which keeps the air (oxygen) away from the surface. It was covered in rust and I stripped it down and fitted all wilson combat parts to it. WhaleOil was very common & cheap. The bluing solution used in most bluing processes are dangerous. The parts that were once blued via the very labor intensive charcoal bluing process, with a worker Charcoal Bluing. If moisture is a problem in your charcoal bluing (I personally have no experience here) it would be less problem to use charcoal left over from annealing, so it has already been heated rather hot. Remove all rust and old bluing. [ Prior to 1939, Colt used a charcoal bluing process which produced some of the best bluing in history, but the amount of labor and time involved necessitated a change to “hot salt” bluing or “black oxide” bluing which is the process used by the industry today. The bluing, salt, ammonia, and water are mixed in varying ratios depending on the recipe. control, even heating, proper atmosphere are really the keys. (Page 314, 315) Alexander reports that the bore As we found out a while back, charcoal bluing isn’t as easy as it is often advertised to be—so how tough it is to rust blue steel at home? The Equipment The excess rust is removed and the process is repeated until the desired finish is required. Charcoal Bluing. It can be done a number of We have spent years studying benchmark firearms to accurately duplicate a variety of historical metal finishes. It involves literal charcoal. Tom . Years ago there was a volume in the Journal of Historical Arms Making that discussed the charcoal blue process at Machine Bluing, also called Carbonia Bluing, was an attempt automate the process, reducing the number of skilled craftsmen need for Charcoal Bluing. The reason you would not use a kiln for charcoal bluing is the charcoal will ignite inside the kiln, thus destroying the heating elements. Dating back nearly as far as the invention of firearms, charcoal bluing produces a deep, rich color that is also very durable. It can refer to color or to the fact that charcoal was somehow used in the process. but you already knew that I am interested in any info from the experts here on how this could be done. The end result is a blue-black glossy finish that is hard-wearing. This Charcoal or Carbonia Bluing. They are beautifully done and have absolutely zero scale in the bore. But unlike today’s modern finishes, early methods relied on chemistry that Charcoal/Carbona bluing looks like it's IN the metal Royal Blue/hot salts bluing looks like it's ON the metal. It is named after the blue-black appearance of the resulting protective finish. Lets talk about charcoal bluing They were blued by Colt’s “oven-bluing” process in a coal-fired furnace. If you are looking for a bright "Peacock Blue" like pocket watch hands, that is charcoal bluing and is a difficult and expensive process to do without the proper equipment. Nitre bluing is the most fragile, and will wear and fade the quickest of all the finishes. Charcoal bluing is a process wherein one gets a very thin scale. This oil quench does a couple of things, first it stops the bluing process and kills the bluing salts, second, while the pores of the metal are open and expanded from the heat of the bluing solution, the oil penetrates into the pores and Color case hardening is a different process than flame bluing and isn't something I'd do. Sometimes when you are looking for one thing, you discover something else. I've noticed that a lot of close up pictures of guns from the 50's appear to be a black charcoal in color blue. Regarding bone meal for hardening or charcoal bluing, I read on this forum some years ago, I think posted by flintriflesmith, that the bone meal must be burned to charcoal first, or you will get pitting from the moisture, absorbed from the atmosphere, that is present in the bone meal. American Pioneer Video has a DVD with Tom Snyder demonstrating a process for charcoal bluing a barrel. Unlike rust bluing or charcoal bluing, nitre bluing employs a molten bath of potassium nitrate (hence the name “nitre”) or sodium nitrate. Original Bluing method of firearm finishing used by Colt, Winchester Marlin. There are numerous ways to blue firearms, such as rust bluing, niter bluing, charcoal bluing, etc. The charcoal had turned white and was glowing red inside. The process involves packing the steel in charcoal and “cooking” it at approximately 800 degrees for Charcoal bluing is a process that does not involve molten salts or hot tanks of liquid. Bluing is a durable finish that can protect metal from corrosion and wear. Double gun shotguns - Side by Side shotguns, and over under shotguns - Including drillings, double barreled rifles, SxS double rifles, combination guns. All work should be done in a well-ventilated space. Dark room or backdrop it looks black. Most will concur the pre-war rust blue process of receivers over time flaked plus the blue didn't wear well with a lot of use. Understood that the barrel was finished with a Standard Black Oxide bluing process. , and a very few other high-end custom metal finishers. These temperatures are far too low for annealing. The largest components were placed in a smoldering mixture of carbon from ground charcoal and charred animal bone for two or three minutes, then rubbed with oakum and whiting. Neither Neat work Dave and it's just like you to document each step of the process. While the process Gunboards. These pots were put in another coal fired furnace and heated until the desired color was reached. Some bespoke houses (like Turnbull) can replicate that process and approximate results. But in the Colt process, the parts were held stationary in a rotating drum oven. Ned Schwing wrote about it in his Model 21 book on page 43/44 as did Renneberg in his Model 94 book. Moisture is in the pores of the steel. Its a heat process that A traditional process used originally to harden carbon steel using very high temperatures and bone and wood charcoal. The degree of polish has nothing to do with the bluing process but the color Turnbull Charcoal Blueing Durability. " The first two revolvers have color casehardened receivers, which is an entirely different process. The entire revolver is blued using the original Charcoal Bluing process used by Colt until 1940. Model: SAA. Fumes from the oil and charred bones, not smoke, was part of the bluing process. Outside in clear skys it will be blue . Browning a barrel. Charcoal blueing was/is a labor intensive process. The went from a Charcoal bluing process to a Machine or Carbonia blue process. Bluing involves an electrochemical conversion coating resulting from an oxidizing chemical reaction with iron on the surface selectively forming magnetite (Fe I'm trying out charcoal bluing an old Norinco frame. Simply another name for a variation of Carbona bluing. both processes can yield multiple shades of blue. After the gun has “cooked,” the metal parts are removed from the coals and vigorously Prior to 1939, Colt used a charcoal bluing process which produced some of the best bluing in history, but the amount of labor and time involved necessitated a change to “hot salt” bluing or “black oxide” bluing which is the process used by The heat bluing of swords and gun barrels was a totally different process. Bone charcoal is the key ingredient in this unique process that Turnbull has perfected over the years. 9226 posts · Joined 2002 Add to quote; Only show this user #2 It's a process that can best be described as "controlled rusting". The result is a work of art, in the original charcoal bluing style of the period. Charcoal or Carbonia bluing is only a myth to most gunsmiths. That’s how Colts used The bluing process involves heating the metal to a specific temperature and then applying a chemical solution. Hero Member; Posts: 4556; Re: charcoal bluing a Anyway, sperm oil/whale oil was used in the earlier Charcoal Bluing process quite often. In my research the term [charcoal bluing] has at least three different meanings. The NitreBlue Bluing Procedure is very simple . So, if you continue heating the steel with the moisture stains after they have evaporated, the A brief description of how Colt's achieved their "deep rich charcoal blue" and "fire blue" finishes found on the early pistols. Many people think Charcoal bluing looks better, - a satin gloss look with bluish gray hue. Also at times causes warping. The hammer is Color Case Hardened, while the screws, trigger, cylinder base pin and ejector rod head are Nitre Blued. In this process, charring can take place without excess amounts of oxygen giving a rich A to z of charcoal bluing of firearms. needed to achieve the color you desire, and to build up the protective oxide. Rust bluing is one of the oldest methods of bluing and is still widely used today by home gunsmiths as it is arguably easier and cheaper than hot salt The barrel, loading lever and screws are blued using the high temp nitre bluing process. Log Number: 17723: Make: Colt. . As the drum rotated, the tumbling of the hot charcoal over the steel surfaces provided the burnishing. This is the so called Carbona Oil Bluing process (sometimes called Carbonia Oil Process). As example, the only real difference between the Ruger's satin black color and Muzzleloader Charcoal Bluing a Gun Barrel [DCBGB] - Featuring gunbuilder Tom Snyder demonstrating a traditional method to blue a gun barrel. The prices listed below apply only to pre-polished and disassembled parts that are ready for I am posting pages from the book Rust Bluing and Browing By R. Some very early double actions like the New Army & Navy and Army Special had oven What is Nitre Bluing? The nitre bluing process (sometimes referred to as fire bluing, peacock bluing or niter bluing) is a gun metal finishing process involving a salt bath solution of sodium and potassium nitrates, heated to exact Charcoal bluing takes on whatever the light surroundings are . Traditionally, bone, charcoal, and sometimes leather are used as the carbon-rich materials for the hardening process. Rust-Oleum Rust Dissolver is just Here’s a quick excerpt: “Generally used on blued receivers, forend caps, butt plates and some bolts, charcoal bluing, as the name implies, utilizes charcoal in the bluing process. It's Charcoal bluing is a dry process and requires multiple trips to the oven. If you can find good examples with high percentage of blue finish remaining you will find that areas will have flaked rather than faded. There are several methods to blue gun barrels, Charcoal Bluing: When wood/bone charr is heated, it starts off gassing Carbon Monoxide & Carbon Dioxide, since CO2 is heavier than air it provides a protective envelope over the steel thus reducing exposure to air. My original intent was to experiment with charcoal bluing. They removed the 44-40 barrel and got a 44 magnum to replace it. Prices. Workbench Forum. By 1919 Colt had cut off the last surface prep stage I believe the bone smoke and sperm oil is a simple charcoal bluing process (Winchester called it “Machine Bluing”). ) At what recommended temperature, or temperature range (in F degrees) is this treatment best accomplished? Rust Bluing is a time-consuming process to undertake, traditional rust bluing actually rusts the surface of the steel. Gun bluing, as far as I've been told, was never about rust prevention as much as it was about looks. The action is brought to temp then the stripes are rubbed in before it’s put into the coal. A charcoal bed, molten salts bath, Carbonia Blue retort, take your pick. The polish before the bluing determines a lot in the final outcome. It is named after Charcoal, Rust, and Hot Blued Parts. We can offer our customers a 10x28 mesh grade, and a 5x8 mesh grade (number 6 granulation). bone charcoal and oil mixture that must remain in an oxygen free environment during the entire process. What is Charcoal Bluing? Capturing the proper shade and texture of original charcoal bluing (sometimes referred to as machine bluing or carbona bluing) finish depends largely on the underlying metal polish. True rust blue does etch the metal a tiny bit which gives it a soft black finish. It did specify the use of it's proprietary 'Carbona Oil' in the In charcoal it is not the charcoal that blues the gun barrel, The only thing the charcoal does is keep excess oxygen away from the metal so as to stop it from slagging. What are your opinions about bluing and browning? NitreBlue Bluing is a controlled heating process that will color virtually all carbon and tool steels. The most common world war 1 pistols are from late war where they cut out the last polishing/finishing steps to speed up manufacturing for the war effort. How you achieve the heating is what distinguishes the various blueing methods. Q-2. Royal blue is a high gloss black color. Winnie phased in Du-Lite bluing (hot tank blueing process) around 1936/37 on receivers. The old h&r and other old rifles and pistols get that coloration from case hardening. The color would range from a "peacock blue" to a dark blue gray. "During 1918, Colt changed to a gas-fired oven-bluing process. The early charcoal, and later gas, pre-war heat bluing process remained the With hot bluing the inlaid metals often require less clean up after bluing, whereas the super high temperatures of charcoal bluing and color case hardening may release impurities in the precious metals and require some attention afterwards. This is referring to bluing, although the OP is incorrect about the method used. Click to see more TRADITIONAL COLT BLUING, BEFORE AND AFTER Watch the long version of the movie at:https://youtu. Given good process control they all will do the job. Digital images cannot capture the visual magic of Charcoal blue, but if you’ve seen this finish on an It works by turning rust, into black iron oxide. Still, even with hot salt bluing, if the metal prep is brought to a sufficient level, you can be amazed at the depth of gloss and shine. Procedure: The metal piece is packed in a sealed container with a carbon-rich material such as bone charcoal and sometimes wood charcoal. It is not the bluing that makes the process bright. \ every bond fire pit isn't equal. This is a traditional process that is still used on high-dollar custom rifles and shotguns. During the charcoal bluing process, the frames and slides were removed from the oven up to six times and scrubbed with oakum and whiting. Charcoal bluing is very functional and extremely attractive. By using a retort furnace, a fine quality of bone charcoal is achieved. C. Smith & Wesson used to call their charcoal bluing process “Carbonia”. Temp. It The term "charcoal blue" is often confused with Carbonia blue, but both achieve the same results. Different process but same tempering blue to the same visual result The older open hearth Bluing, sometimes spelled as blueing, is a passivation process in which steel is partially protected against rust using a black oxide coating. Originally, this process used bone charcoal heated to an exact temperature. We are pleased to offer traditional bone charcoal color case hardening, charcoal bluing, rust bluing, nitre bluing, black oxide hot bluing, French gray and plating services. Steel parts are submerged into the molten salt, which heats them to a precise temperature, causing From my reading, the same oven bluing process was used pre-war, it's just that the pre-30's guns had a brighter polish before bluing. There are higher temperature processes used to provide more color, like nitre and charcoal bluing, but the temperatures involved are critical and parts can be ruined in an instant without proper equipment and experience. The S&W bluing process up to 1978 was a hot dry blue process called carbona. The bluing was produced by carbon from charred ground animal bone and pure petroleum oil that colored The following is a quote from a 2007 correspondence with Roy Jinks: "The bright blue process depends on a very bright finish. John and Gary can no longer defend the process. Save Share Reply Quote Like. I have looked in several of the gunbuilding books in my library, and did find basic instructions in "The Gunsmith of Grenville County" as reported by George Suiter. Ordinary hot salt bluing can also be gorgeous but can't quite capture the colors that the old methods did. The Charcoal Blue Prime is a pistol both you and your family can cherish for generations to come. Remembering that this process dates from the early 1800's,,probably before that and used in the industry up till the Gas Furnaces took over in the first decade of the 20th Century. Charcoal bluing is more of a "purist's" choice, since you end up with a gun that looks very much like an early 20th-century piece. Barrel Length: 5-1/2" Stock: Carbonia Blue is not the same as charcoal blueing, though it makes use of charcoal in the form of (bone)-charcoal in it's process. We restored this pistol back to factory condition in 2012, and it has since been meticulously preserved. Note the difference in color of the bluing between the barrel Flaking of the same blue gotten at the same temp but thru Nitre Blue doesn't flake like Carbonia/Oil bluing with bone charcoal. In the early 20th Century Colt blued in a rotating barrel full of charcoal. Even though my father had no love for guns (he was a WWII vet) I can still hear his stern voice commanding me to wipe my gun down with an oily rag after handling it. The receiver and bolt are blued using the charcoal bluing process. In 1918 Colt changed to a gas-fired oven bluing process. The gray color on the barrels of old guns is simply the color of the old steel under the blue because the blue has worn off over time. The basic gist of the process is to stuff the barrel with charcoal to prevent scaling in the bore, get a good bed of coals going, put the barrel in the fire and wait till it gets red hot. It is usually incorrectly called 'Carbonia' which could be some little town in coal country . Bluing is really a controlled “rust” process. After cleaning, applying a thin layer of oil is crucial to protect the finish from moisture and oxidation. ) If the steel object is already heat-treated, is this an impediment to the charcoal bluing process? Q-3. G. Makers - Darne, Merkel, Arrieta, Beretta, Browning, Holland, Purdey, Richards, Bernardelli, Parker, Fox, LC Smith, and most other double barreled shotgun, gun and double 1913 - 1915 on revolvers and the hammerless autos. Both are an oven/charcoal bluing process as opposed to the various hot salts bath adopted by most US gun manufacturers after WWII, including Colt. It is a very time-consuming and labor-intensive method that only a few professionals have figured out. It was used for so many things. I believe this is a variation of the Charcoal Blue process that was used by Colt. This process places the metal part in a bed of coals and allowing it to heat up until it attains the desired color. The gun is packed in it and heated in an oven, and the Correct me if I am wrong. [1525 deg fer. The process for charcoal bluing involves “cooking” the metal parts of the gun at 800 degrees Fahrenheit in charcoal for several hours. The bluing solution is that deadly! Another bluing method is called Charcoal blue or may also be referred to as Carbonia blue. It involves submerging your parts in a rolling boiling mixture of water and powdered chemicals referred to as salts this occurs generally at 285F it is a fast and attractive finish only taking about 20-30min the charcoal bluing is a process of packing parts inside a crucible filled with various charcoals. Read, highlight, and take notes, across web, tablet, and phone. Both authors reference the sperm oil The process for charcoal bluing involves “cooking” the metal parts of the gun at 800 degrees Fahrenheit in charcoal for several hours. Also including a segment on making your own charcoal since commercial charcoal is not suitable for this procedure. There's an article in the Blue Book on the process; sign on as an apprentice at Turnbull's, or expect a STEEP learning curve. It is a gun I am planning on keeping to use at the rendezvous shoots, and a little hunting. Capturing the proper shade and texture of original charcoal bluing (carbona bluing) finish depends largely on the underlying metal polish. If the finish cracked or flaked when the inspector There are 2 kinds of heat bluing, charcoal bluing and temper bluing. After the War they had lost most of the professional polishers and introduced the matte finish, a nicely polished but matte surface and it is thought that the charcoal bluing method was still in use. This process is commonly referred to as “Colt Charcoal bluing is one of the traditional bluing methods used on many fine firearms (including vintage Colts & Winchesters). 1. In this process, the parts are packed in a metal The charcoal bluing process was lengthy and meticulously controlled, as mentioned above. Colt and Smith and Wesson both did research on charcoal bluing in the It's similar to 'DuLite' and Charcoal bluing as far as the process goes, but certainly not the same. This causes the metal to oxidize, which creates a dark, blue-black finish. An open hearth trough filled with small pea-sized pieces of bone char was brought to heat by the gas burners under the container and not the burning the charcoal The Charcoal Blue adds a heritage-level finish to the classic design and modern performance of Prime, with a full hand polish on the flats and rounds, charcoal bluing on the slide and frame, High Polish Blue PVD small parts, flush cut and crowned barrel, and American Holly grips. The finish is a high gloss black finish that is done just as it sounds, in a tub of burning charcoal. It’s also a relatively inexpensive process, which makes it a popular choice for gun Hot bluing solution: A more involved process, hot bluing requires heating the bluing solution and carefully applying it to the gun. Starting out you prep and degrease your parts. They took off the ugly tang safety, stripped the Win bluing, gave Turnbull rust&charcoal . The charge used in the bluing process is ground animal bone charred to chemical purity in a bone pot placed into a white hot furnace at 1400 deg hot. It can be performed on gun barrels and other firearm components. Rent and save from the world's largest eBookstore. Fire Bluing. The description from the Colt historian on the charcoal bluing process of the parts: "After two or three minutes they are withdrawn and rubbed with a handful of oakum or tow, and with a powder known as whiting. Angier published in 1936 but I believe the author was writing the book circa 1920s or a little earlier. Again, I am not 100% certain what “Carbonia” oil is, it was a trade name made up by the American Gas Furnace Co. It took a long time for the wood fire to get the charcoal container up to temperature, but the actual blueing was quick. However if the steel has rusted the bluing will have come away and in some cases will leave a bluish Charcoal Dust Bluing by Larry Niday. 45 Colt. Then in the 60's the finish is a Advertise With Us: Search : Smith & Wesson oxide bluing process (called Black Magic) was used by S&W for a relatively short period in the late 1941-early 1942 period on the pre-Victory revolvers Rather than highjack the "barrel treatment" thread, I thought it might be more informative to begin a new thread on charcoal bluing. 6 IIRC at Colt. One such turn of events introduced me to a unique metal finish and restored an old process to new life. The unexpected can change your course and you find yourself embarking on a new journey. There is a bonus segment to highlight tools Tom makes for those interested in building 18th century style firearms There are numerous ways to blue firearms, such as rust bluing, niter bluing, charcoal bluing, etc. Sort by Oldest first Oldest first Newest first Most reactions. Charcoal bluing was a common method of bluing firearms in the 19th and early 20th centuries, used by nearly all the firearms manufacturers of the time. Additional information. To do this, detail strip, and let the parts to be blued sit in phosphoric acid for about 20-30 mins. My Winchester 1892 is now a ranch rifle on a ranch in Fall River County, South Charcoal blue, the kind Doug uses, does in fact require charcoal, but the parts are not set in the stuff, although you can get a reasonable but chalky color that way. Most side by side shotguns also had charcoal bluing and case coloring. Carbonia blue (sometimes called 'machine blue') is the later post WW1 process. We interviewed numerous respondents who claim to be either manufacturing or using what they believe to be methamphetamine that is manufactured through this cold cook method, which includes gun bluing. Smith Crown Grade 12 gauge shotgun. Caliber. This process was repeated until the proper colour was obtained. Wearing serial number RE93982, this classic American double in excellent condition was made in 1926. So what you guys are telling me there were actually 3 types of bluing that Winchester used, #1 Rust Bluing, #2 Charcoal or Fire Bluing, #3 Hot Bluing is that correct? Browning is a similar process to rust bluing except The mirror-like bluing captures the heart while producing a hard-wearing finish. Nitre bluing, sometimes referred to as fire bluing, is a heat-based process used to create a distinctive, colorful finish on steel. The drawback it that the finish can be An old technique I read about used charcoal and bone that is powdered and rolled leather. The exception being the wartime 1917 mentioned above. Two hundred pounds of bone are charred at a time, burning away all foreign matter. The blue-black image of black iron oxide is what gives the name to this process. DuLite bluing, such as Colt Author Topic: charcoal bluing a barrel (Read 5022 times) colt Guest; charcoal bluing a barrel Can some one clearify the process for me? much appreciated Ken. Graham forgot to mention that you must pack the bore with charcoal dust to prevent heat scaling in the bore. I have two barrels that Tom charcoal blued for the gunsmith that built these rifles. Carbonia Bluing/Machine Bluing Carbonia Blue, also commonly referred to as machine bluing, was welcomed as a labor-saving process. be/6nN1J5iu8ooHey, this is Bryan at Brubaker Arms Manufacturin The process for charcoal bluing involves “cooking” the metal parts of the gun at 800 degrees Fahrenheit in charcoal for several hours. Although time-consuming, we consider rust bluing a very durable method of bluing that produces a softer blue-black finish worthy of the investment of time and effort. If the finish cracked or flaked when the inspector Gary, what about charcoal bluing? Jump to Latest 8K views 6 replies 3 participants last post by sant The other is charcoal bluing. During WWII the Parkerising method was employed, a dull, poorly polished and with a green tone. This heating process tempers the metal while bluing it at the same time. I wouldn't begin to know how to duplicate that Blueing on most 19th century handguns was completed with a heat process sometimes called Charcoal bluing. Older hot bluing processes used harsh chemicals and produced a deep blue tint, providing the name for the process. The appendix H. I attended a charcoal bluing of a barrel today and wrote a short blog post on my web site about it. It's a process that's done to the metal itself and not a coating like Armor-Tuff but is considered to be a more traditional finish. I have rust blued prewar style barrels simply because the If this is your first visit, be sure to check out the FAQ by clicking the link above. I recently saw a Griffin and Tow fusil from the 1760's that still had most of the charcoal bluing on the sideplate and my Westley Richards double from 1870 still has most of the blue on the trigger guard. Winchester charcoal blued parts up until the twenties, when they switched to the carbonia or machine bluing process. This process is fairly time/temp sensitive, and Winchester had issues with frames flaking right out of the furnaces, so much so that they added an additional inspection stamp on the lower tang to check for flaking. ) was used by many gun manufacturers in their own versions of 'DuLite' bluing, but the use of Carbonia oil does not make it 'Carbonia Blue' as only S&W did it. A custom-crafted Nitre* blue safety and slide stop compliment the Charcoal Blue finish and create an enduring 1911 that will always perform and never go out of style. These temperatures are far too low for hardening. will not only melt them out but they will alloy with the barrel steel. This was a coloring process known to be in use at least as early as the 18th century. The process is actually more complicated and involves the ammonia as well as the bluing and salt, forming (likely) ammonium chloride (NH 4 Cl) and two forms of ferrous ferrocyanide, KNaFe II Fe II (CN) 6 and Na 4 Fe II 4 [Fe II (CN) 6] 3. Both require heat that would ruin the properties of your frizzen unless you attach a separate hardened sole. I don't believe there were any substances added to the oven in During the time period you mention the bluing used on large parts was charcoal bluing, and the small parts were blued by the same method except they were placed in cast iron pots with the charcoal mixture. Rust bluing solution: This method involves creating controlled rust on the gun’s surface, followed by the application of a rust bluing solution. 1 - Clean the properly polished gun and parts in cleaner/degreaser. It may be worth while to invest in this video before attempting a charcoal blue on a Rust bluing has its roots in the 19th century, a time when firearms manufacturing was transitioning from handcrafted artisan work to more industrialized production methods. Modern salt bluing process. If you heat steel up and watch what happens (as I have on many occasions), you will see moisture coming to the surface then gas off as steam. Doing this successfully by hand requires a lot of skill. We now offer this special charcoal bluing procedure which closely matches - or, as closely as document doubly possible – Colt’s process for their charcoal bluing. The early black powder guns have a high polish very black finish referred to as charcoal blue. Not at all blaming you because this is a common wives tale on gun forums that comes up with respect to nitre bluing (which is totally different and less durable process than the charcoal bluing process here but happens to be done at similar temps). This type of bluing requires cooking all of the parts in the kiln Charcoal bluing is the oxidation color the steel gets at about 850F,,which is the temp the charcoal embers cook at. with no damage. my mob no 9472623572 Rust bluing or slow-rust bluing as it is sometimes referred to is the process of controlling rust over an extended period of time with the use of wipe-on chemicals/acids, steam, or boiling water. Carbonia bluing or machine bluing is one of the most beautiful finished I’ve ever seen on a gun. That was a mechanized version of how Sam did it a century earlier. Still, they all follow the basic process of oxidizing the metal surface and turning it into a protective shield against rust. That rifle loads smoother and clean easier than any other one I have. English charcoal bluing of mounts on guns is done slightly differently on a highly polished surface and comes out looking like deep black chrome. I am currently building a Jacob Dickert rifle. I would argue that if a 1903 Colt were sent back to the factory for refinishing after WWII, Colt would have refinished it with hot bluing salts instead of the original charcoal bluing. Ebonex offers two granulation’s of bone charcoal for gun case hardening and gun bluing. The bluing solution depends on the process. The barrel I have the Ron Scott did back in 87 is still holding up well and one unexpected advantage of it is the process also blued the bore. I’m excited to work on a Colt Woodsman and Colt 1902 project soon to confirm that the process works well on different era guns. Hot Caustic Salts Bluing. It works by turning rust, into black iron oxide. A charcoal blued high polished part will produce a mirror-like finish that is second to none. It's not a bluing process. Their argument is that “these ingredients” (only charcoal and gun bluing are named specifically) do not produce the necessary precursors. As for 24kt gold being turned to rose gold via a nitride process, we can't speak to that as we don't do Charcoal bluing has a bit of a learning curve and requires an appropriate set up to handle a 800-850 degree hot barrel. This is an L. The final stage is bluing with a recipe that has been developed through extensive experimentation. Metal parts are placed The CArbona Oil Blu process /American Gas Funice co process was just an automated Charcoal Bluing process. Char it too hot and it will form no moisture. The charcoal was heated along with the parts to the correct temperature. One other blue that was probably used was charcoal blueing which gives the nice wet blue black color one sees The other ways are niter bluing, charcoal bluing and heat bluing. Nearly everyone who has researched history Bluing Vs. It involved heating steel and charcoal together in a controlled atmosphere. I was told it had to be about 1000F. We will see how it turns out, there isn't much information i could find on the process. The process involves using low-carbon steel or iron as the base material. B. This time consuming, ancient process also takes great talent and experience, such as is had by Doug Turnbull of Turnbull Manufacturing Co. It did use Bone charcoal instead of Woodcharcoal. The pit method is crude and gives irregular results. Most of the older styles of bluing done during the 19th Century were not as robust as the bluing done to firearms today. Most double shotguns represented here. The steel I I believe this is a variation of the Charcoal Blue process that was used by Colt. I believe the original bluing process used is called “Charcoal Bluing”, for all blued parts except the barrel. I went through 10 or 15 Since it's a heat bluing process the composition of the steel will determine the colors and the temps that will achieve them, although it's generally within a small range. After the gun has “cooked,” the metal parts are removed from the coals and vigorously rubbed with powdered lime. 3 - Within a maximum of 2 hours after polishing/cleaning, immerse in The went from a Charcoal bluing process to a Machine or Carbonia blue process. Prior to that period, charcoal blueing was used. If you want to go whole hog then have Turnbull do the slide and frame in charcoal blued and the fire control levers in fire blued (aka nitre blued). The methods described so far have all been speculation. 2 - Dry all parts thoroughly. Smith & Wesson continued the Carbonia process until the mid to late 1970's when they too switched to the hot salts method. " The frames were polished and the packed in a 60/40 mixture of charcoal and bone. Through the bluing process the layers of rust coatings result in an extremely durable and abrasion resistant blued Yes, lime was used during the charcoal bluing process as I mentioned. Charcoal bluing. It was a charcoal style of process and S&W started using in in the 1850s. It is accepted practice there. Rust bluing for barrels is a process that only a few master gunsmiths practice. If you Charcoal bluing is a form of rust prevention and beautification. For this restoration we polished the action and parts, restored all There are two distinct processes using charcoal, both often lumped together: packing the metal in charcoal in a heated & sealed iron box is one, placing the parts on a rotating rack in a furnace, then blowing in charcoal dust or smoke is another; the latter is “machine bluing” and is supposed to be more durable than the former & older "Carbonizing," as Colt called their process of casehardening pre WWII Colt SAA frames, was a combination of R. This method provides a durable and deep blue-black finish. Silver and gold inlays will stand up to 1500 deg fer. This process was developed by John Bivens, Wallace Gusler, and Gary Brumfield. tnhtwk klt jlna ksrb eum bxb hqcz jzw hpez wlzqv