Coloring Stainless Steel

Check here for info or ideas. It's either electrochemical or bonded.

http://www.smacna.org/newsletters/index.cfm?fuseaction=view_article&id=2472

I say thanks to charsley99,Jim C,Milo,Rorschach, I would be grateful if you help me to provide the knowledge or information about the materials used, the process does, how can I make a color image in stainless like the picture above.thank you so much for your attention

What you show looks like conventional heat tint, but what will happen is that the part will quickly corrode and/or crack in the areas colored due to the sentization and disruption of the Chromium oxide layer I noted previously. It would appear a great deal of heat was imparted to this part.

What you show appears to me to be a temper color resulting from placing the bottom of the piece (blue end) in an induction coil.

I would not do this to stainless steel for the reasons given by Rorschach and others.

But if I had to do develop this color in a a steel part, I would lower it into an induction coil of sufficient height to generate the band and would experiment with time to get the intensity of color. The contrasting colors at the top appear to me to be the temper colors associated with 260-282 degrees C if they were .95 carbon steel. But that is subject to the vagaries of photos, monitors, and printed reference standard in my hand.

milo

Welcome to cr4 andi and your young friend. http://www.nanoxid.com/indexe.html milo

Me and my little friend many thanks for the input you provide, may God repay you all, and success for all of us,thanks.......

Me and my little friend many thanks for the input you provide, may God repay you all, and success for all of us,thanks.......

You have to remove or maybe control the amount the oxygen from the heating process, or insert a inert gas like argon, Hydrogen is used in the steel annealing & tempering process to keep oxygen out.

Jim C

Stainless can be damaged by heat. If you get it between 800 and 1200F, you are in the range of temperatures that can cause intergranular corrosion and sensitization. Also heat tint can cause corrosion as well by tying up the chromium with carbon, leaving the surface layer depleted of chromium. It is the chromium oxide layer that forms in air that makes stainless corrosion resistant. if that chromium oxide layer is damaged in some way the material loses it's corrosion resistance.

You mess with the surfaces of Stainless at your peril.

Yup!

milo