DON'T GO THERE!! Goran has been kind enough to upload his booklet to. note Jan 2017: Although was a legitimate site when Goran posted this, it is currently a malware site. Download free booklet on coloring and plating of metals, including heat tinting of stainless steel :Ī/TfuRNJ_GLYiy-a_0jvIMxA483937 Goran BudijaĮd. Torch work could produce some wild patterns. It takes a harsh acid treatment to remove it on aircraft parts, so I will guess that it should be long lasting outside. The color is mostly oxides of nickel and or other elements in the alloy. You might use 1' panels and piggy back them with someone else parts in the furnace. This would take some trials to sort out what would be best. Not many places can take a 4 x 8 sheet, but you could tack weld or pin the ends to form a cylinder that would be 4' high by less than 3' in diameter.Ī "dirty" part will have stronger colors. Not sure of what would be the best temp for your desires. You can get anywhere from a light tan to a light blue to a dark blue by heating panes in an open air furnace. Has anyone tried this on a large scale with 4'x8' stainless steel panels? Does anyone know how colorfast the metal is after being exposed to weather (i.e., will the colors flake off, change, etc.)? Are there examples of something like this being done, maybe in outside sculpture or something similar? Thanks so much for your responses. We have seen some pretty cool colors come out of heating stainless steel to high temperatures. I am working on a project where we are looking to use stainless steel panels as wall cladding on the side of a parking garage. Heat patina stainless steel for outside use? January 5, 2011 Multiple threads were merged: please forgive repetition, chronology errors, or disrespect towards other postings :-) If you are using a furnace, the color will vary with the amount of oxygen present and the rate of cooling. Color can be as much from if the torch was an oxidizing flame or a reducing flame. Hope it helps and good luck! Goran BudijaĪ. Try next webpage -very good article on heat tinting of stainless steel. ( D.Fishlock: Metal Colouring, Teddington 1962.) can be very good source of infos. Old book on metal colouring by D.Fishlock Bill Brightĭesigner/maker belt buckles - Findlay, OhioĪ. I would like to know if there is a book, chart, or whatever, that would help me to get different colors when heating stainless. I am a small business that makes stainless steel belt buckles. Getting "color" in stainless steel by heating 2007 The oxide must be physically removed in order to start the process. These colors are stable unless voltage or heat is applied to the surface. You can color different parts of pieces this way-even put pictures on the surfaces.īut while the surface will stand up to handling, it's likely that any burr or scratch on a wrench would scratch through the oxide. This process is highly controllable since it can be done using controlled voltages-each voltage will represent a color. There is a technique for anodizing stainless-used to be a company in Colorado that used it for making signs, I do not know what the process is-but it must be out there, google is your friend.ĭepending upon how "hard" the surface needs to be, you could also use titanium bolts, which can be surface colored to a dozen shades, everything except red. Since neither the Inca nor the Aztecs used iron, much less steel, I'm not sure about this information. It will depend upon the grade of stainless (amount of nickel & chromium in the alloy.) Probably not, although the underlying bolt strength shouldn't be greatly affected by that temperature. Robert M Īutomobile repair/restoration - Tacoma, Washington Is there a better way to have a hard surface with a metal yellow and a blue that won't oxidize or change color? How hot do I need to heat chrome plate and stainless steel to get yellow and blue? Is there a medium (the Incas (or Aztecs) used KNO3 (saltpeter) heated to its melting point to produce a beautiful turquoise patina on steel) I should use? Then two days later they darkened to a nice yellow color.Īfter heating the stainless steel or chrome plated bolts, is the surface just as hard?Ĭan I expect that at some point the color will stop changing and then remain the same (no oxidation)? So far I have heated some hardened stainless steel bolts to 550 degrees Fahrenheit. We desire to have yellow and blue colors in both stainless steel and decorative chrome. The assumption is that, with hardened stainless steel bolts, this method of coloring would give a hardness that will stand up to being turned by a wrench, as well as a finish that will not change. Rather than using the usual chrome engine parts we have decided to attempt coloring the bolts with heat. Heat-produced Patinas on Stainless Steel and Chrome Plating, anodizing, & finishing Q&As since 1989
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