Students will be provided with a course handout summarizing the process, and will participate in the preparation. Color case hardening and another link to a thread on color case hardening from. A risk with color case hardening is the warping of components during exposure to the extreme heat. Traditional color case hardening consists of four major steps. The above tests and other experiments have demonstrated that there are several variables that control the color hues, the texture of the colors, and the color patterns that one obtains in the bone charcoal color casehardening process, which, if recognized and controlled properly, allow one to consistently and repeatedly obtain excellent. I am thinking that this would be a possible way to warp an action or bolt and perhaps change the strength of the parts. Color case parts with their subtle shades of blue, gray and straw really give a gun a true custom look. The part is heated to 871954 c 16001750 f in a bath of sodium cyanide and then is quenched and rinsed, in water or oil, to remove any residual cyanide. Some of these components were so finished for purposes of surface hardening and wear resistance, some for purposes of cosmetics, and some for both. In anodizing, as in case hardening, we do not apply a layer to the part. Thats why alain combes can not give prices without being able to examine your firearm. Ive heard of turnbull seems to be a popular choice. Here is a link to a little tutorial on how to color case harden that favorite project. Color case hardening is a heat treatment process for the purposes of hardening steel parts surface to obtain a better resistance.
How to protect color case hardening gunboards dot com. These steels, after hardening, have a high degree of hardness in the surface zone and good resistance to wear, while the core material is characterized principally by extreme toughness. Carbon steel typical heat treatments case hardening grade. If you have something that is hard enough and you just want to pretty it up, faux case hardening is simple, but somewhat time consuming. For iron or steel with low carbon content, which has poor to no hardenability of its own, the casehardening process involves infusing additional carbon. Colt peacemaker, showing casehardening colors on the frame. Cherry red instantly case hardens steel parts with no special heattreating equipment required. It is a true case hardening and actually produces a harder finish that pack hardening. Case hardening consists of heating the work in a closed container, driving carbon and other elements into the surface of steel to produce an extremely hard skin.
Mild steel or low carbon steel is ideal for case hardening as it is able to absorb the the case hardening solution into its outer grain, yet still retain its tough resilience. The biggest benifit to cyanide hardening is that its quicker than pack hardening carburizing, parts are generally heated then swabbed with or dipped into cyanide. But it sure is tempting to get a full turnbull job since i dont plan on ever getting rid of the fox. There is no way to offer an exact quote unless the firearm is shipped to us for evaluation. Sharps rifles were traditionally done this way, as are your better modern replicas.
The way it works is the piece is finished to about 400 grit. Case hardening added carbon to the surface skin of the steel part and left it in a state which could be hardened by quenching. Of the various diffusion methods table 2, gas carburization is the most widely used, followed by gas nitriding and carbonitriding. Our customers have made us what we are today, and well never forget that. Color casehardening effect on steel steel fx patinas. The piece is encased in a mixture of ground bone and charcoal, or a combination of leather, hooves, salt and urine a proprietary mix which is put in a crucible. Smear some fruit juice on the bare steel object to be colored, and after an hour or so, wipe it off. We do know that by case color hardening a receiver or frame you get beautiful colors. Used by a lot of firearms makers until the 20s, this process produces also a very nice and unique shading. Color case hardening tutorial hot work bladesmiths. Brownells has determined that combining wood charcoal with bone. Restoring case hardening the firearms forum the buying. Cyaniding is a case hardening process that is fast and efficient. The rifle spent some years on a lobster boat when owned by a great uncle, so, it made sense that he might have applied a coat of varnish for protection against the salt air, and, the case hardening did have a look to it like poorly applied varnish.
Wisconsin just because something is made of metal does not mean it is strong. Introduction to surface hardening of steels asm international. It has been beautifully handengraved on all metal components. Brownells color case hardening instruction manual steel trigger. Case hardening in firearms should result in a hard outer layer and a softer inner core of the part or receiver. True color case hardening through other means such as the cyanide process. It would be foolish to shoot an 03 with a low serial number.
Induction hardening as an alternative to case hardening eldec. And, although the woodlander is a goodlooking gun, cyanide case color doesnt look as nice as the more rare, bone charcoal colorcase hardening, which results in richer, softeredged colors. When we introduced our first two casehardened rifles, in. Here is a link to a little tutorial on how to color case harden that favorite firearms project.
It is very difficult to weld and cannot be case hardened. This cherry red case hardening compound is the perfect and modern hardening compound. These custom finishes offer a next level appearance to your firearm. Hardening is accomplished when the highcarbon surface layer is quenched to form martensitic case with good wear and fatigue resistance superimposed on a tough, lowcarbon steel core. These process variations naturally produce differences in typical case depth and hardness table 2. Hardened steel is used to make the lock plates, and case hardening would make the plate too brittle for the intended purpose.
Guns international advertising policy this sites purpose is to bring gun buyers and gun brokers or sellers together by advertising guns or gun related items and services for sale online. The powers to be at that time blamed the case hardening which is why the double case hardening. A simple wipe down with a good lube is all thats needed, but remember that color casing is not a very durable finish and wears easily. Case hardening using sodium cyanide has been around a long time. British color case hardening 83 they lend the process an air of mystery, even magic, especially in britain. Our prices on case color hardening are competitive, and if we recieve your work prepped and ready to go into the oven turnaround is normally 2. Tyler gun works master craftsman of color case work. The colors are temper colors same as heating any piece of clean steel and are very thin one atomic layer and cannot be improved. Home color case hardening steel is within the capability of a determined hobbyist or gunsmith. To see more examples of my gunsmithing and color case hardening click on the photo gallery page. The lower level is most often seen on pistols, but i have seen it on rifles. Samuel colt was able to streamline his guns in 1862 because the higher strength silver steelwas available. Since the color case hardening finish is starting to wear off on my beretta stampede, i was wondering, is it possible to get that finish redone restored.
I saw a custom rifle built on a mauser 98 action that had the bolt and action colour case hardened. There does seem to be two levels of uberti color case hardening. This was during the making of the steel and not when the parts were hardened. This gun has just undergone a full restoration with bone charcoal case colors, rust blued barrels, hot blued furniture, and hand rubbed oil stocks. On the site it mentions that the pices listed only apply to prepolished and dissambeled parts so what exactly should one do. Alrighty, as promised a while ago, here is a tutorial for how i do color case hardening. Color case hardening is a heattreating process originally intended to create a hardened steel part that would increase the parts durability.
Premium steel patina kit for color casehardening of firearms or carbon steel knife blades. But before i describe how it is done, there is case hardening and color case hardening. Singleshot rifles, leveraction rifles, sidebyside shotguns, and singleac tion revolvers typically had color case hardened receivers, levers, and other. Process for steels used in aircraft carburizing and nitriding pdf. Colt quickly discovered that the handful of older employees whod mastered color casehardening were no longer around.
Just bring the product up to a cherry red color and put some on and its case hardened. Every reasonable effort is made to provide the customer with a quality result, for which heshe is happy. Brownells color case hardening instruction manual free download as. The process of casehardening, however, increases the carbon content at the surface of mildsteel and, on quenching this layer, hardens in the same way as a carbon steel, though the core of the mildsteel remains soft. The exact derivation of the term case seems also to have been lost to his. Procedural aspects of induction hardening sms elotherm. Color case hardening service for sale guns international. Carbon steel typical heat treatments case hardening grade table chart. So, dad took it apart and i brought the pieces to work. To combat this potential problem, we fit receivers with precision machine cut internal blocks to prevent the metal from being able to twist. However, due to certain unforeseen factors beyond our control, we cannot guarantee the appearance of the finished piece, since no two pieces will ever turn out the. Many of us have heard of casehardening, the process of adding carbon to the surface of low carbon steels providing a hard exterior shell around. Color case hardening is done much the same way except that generally only leather and bone are used as the carbon source. When carbon steel became common,it was,and still is called,by the british,silver steel.
Case hardening processes harden only the exterior of the steel part, creating a hard, wear resistant skin the case but preserving a tough and ductile interior. The effect of carburizing medium on carbon dispersion. True bone charcoal color case hardening that does not actually harden the part. Conversion coating, plating, and the coloring of metals. Our bone and charcoal case hardening is done in case ovens, by hand and give an incredibly beautiful and vibrant appeal to a firearms receiver. Color case hardening is usually done with a carbon pack in an air tight. Casehardening or surface hardening is the process of hardening the surface of a metal object while allowing the metal deeper underneath to remain soft, thus forming a thin layer of harder metal called the case at the surface.
In the old days this was simply animal hide or bone. True bone charcoal color case hardening that actually hardens the part. To find out more about color case hardening, hot bluing, slow rust bluing, rust browning, firearms safty rules, hours of operation, shipping instructions etc. If this is your first visit, be sure to check out the faq by clicking the link above. Case color hardening has been around for centuries, however it is not known for how long. To case harden a part the process is also known as pack hardening the finished low carbon steel part is placed in a sealed container, packed with a high carbon compound. This subset of henry rifles can blend right in with most hunting environments and, thanks to the hardening treatment, sport an extra measure of. Case hardening compound receipe practical machinist.
Long hunters now offers premium quality case hardening and bluing to our customers. We offer you more then 25 years experience in case color hardening and other types of metal refinishing relating to the firearms industryrust, nitre, and hot oxide bluing among others. Comparison of the two methods, case hardening and induction hardening, shows the advantages and disadvantages. Factors influen cing the suitability of a particular diffusion. One of the greatest things that we at henry repeating arms enjoy doing is meeting customer requests.
When is color case hardening not color case hardening. By the late 60s, robin was working closely with stokes hardening guns. Invisibly inletted and glass bedded behind the locks to resist cracking. Make sure this fits by entering your model number instantly case hardens steel parts with no special heattreating equipment required. Tyler gun works color case work major van harl usaf ret. Mike, this coloring is part of the process of color case hardening. First off just to get it out of the way remember hot stuff. To start viewing messages, select the forum that you want to visit from the selection below. Uberti uses real color case hardening on the rifles and most pistols. Henry rifles big boy color case hardened carbine is a dream.
Lets see, color case hardening, rebluing, total clean job and stock refinish. Color case hardening and another link to a thread on color case hardening from the marlin collectors association, sent to me by ajb thanks tony. The obvious advantages of casehardening are that parts like shafts, gears, gudgeon pins, brake rod pins. The action locks up tight like new with the lever slightly right of center. It is then hard and tough where required without becoming brittle. For a modern firearm, color case hardening can create a unique, oneofakind gun. The potential of pack carburizing can be enhance and research shows that the improvements of carburizing medium bring a good contribution on increasing carbon diffusion to carburized steel. The reproductions, including todd watts version use a chemically induced coloration to mimic the appearance of color case hardening. Both standard steel and gerfidic metals post 64 winchesters can be color case hardened. Plus, renewed interest in the old west has brought many old and well used guns out of retirement that need to have faded color case hardening restored.
My understanding of the early springfield 03 was that the steel was brought to a temperature that was too high. Casehardening or surface hardening is the process of hardening the surface of a metal object. Ultrapremium steel patina products for achieving a color casehardened finish on steel. Firearms conditions can greatly affect the final price of a job. Remember, color case hardening is more of an art form than an exact science.