Talk:Bluing (steel)

message: I think the modifier on the title (steel) should be changed, because this process can be applied to other metals. For instance, the military documents in the references section state that it can be applied to wrought iron. Perhaps the modifier should be metal or ferrous metal. --Wizard191 (talk) 22:42, 7 September 2008 (UTC)
replies: text: Wrought iron is a form of steel -- it's low-carbon mild steel.  — Preceding unsigned comment added by 74.95.43.253 (talk) 01:41, 2 June 2020 (UTC)
thread_title:  Title 

message: I have tried two different ways of hot bluing; both failed.  I then read it has to be done under pressure, and can be dangerous.  Why not mention this?Tintinteslacoil (talk) 00:48, 13 March 2009 (UTC)
replies: text: Wikipedia is not a how-to manual. We don't give instructions and, by the same token, we do not offer advice about health or safety for those attempting to do it themselves. Kafziel Complaint Department 01:09, 13 March 2009 (UTC)
replies: text: Hot bluing is extremely sensitive to certain impurities, and to properly cleaning the metal of all oil residue prior to attempting to blue it.  If some specific impurities are present, or if all oil is not carefully removed, then the hot bluing always fails.  If an adequate amount of water is not present, then the bluing fails, too.  If the water contains certain minerals, depending on the exact mix, the bluing can fail.  Distilled water is generally a good idea.  Bluing does not have to be done under pressure.  As for dangerous, yes, bluing can be, especially for cyanide based recipes.  Suggest further study of some of the older treatises be done, as they are much better at describing the process and how best to overcome the problems.  That said, Wikipedia is not a how-to guide, as noted above.  Yaf (talk) 03:37, 13 March 2009 (UTC)
thread_title: Hot Bluing?

message: I was doing some calculations based on the beginning statement: "the black oxide of iron, which occupies the same volume as metallic iron." According to the Pilling-Bedworth ratio, http://en.wikipedia.org/wiki/Pilling-Bedworth_ratio, this statement is not true. It has a volume change of about 2. I suggest that we change it unless I made a mistake somewhere.
Tycedi (talk) 18:03, 1 November 2010 (UTC)
replies: text: I agree. It's not true. There's LESS volume change with magnetite, but there's still a volume change. Tarchon (talk) 00:24, 1 August 2013 (UTC)
thread_title:  Volume Change of Iron Oxide 

message: "This is not a chemical means of bluing." That makes no sense. You hang it over fuming chemicals but it's not "chemical"? Tarchon (talk) 00:24, 1 August 2013 (UTC)
thread_title:  Niter bluing 

message: Under "limitations":  Aluminium and polymer parts cannot be blued, and no corrosion protection is provided.
Polymers don't corrode: there would be no reason to attempt to provide corrosion protection by bluing, or anything else, to polymer.  Doesn't need to be in there -- else you might as well also mention that it doesn't work on glass, plastic, celophane, wood, cotton, etc., etc.  — Preceding unsigned comment added by 74.95.43.253 (talk) 01:38, 2 June 2020 (UTC)
thread_title:  Um . . . 

message: "rust, the red oxide of iron (Fe2O3)"  Fe2O3 is the red iron oxide, but rust is iron oxi-hhydroxide FeOOH.150.227.15.253 (talk) 16:53, 1 September 2021 (UTC)
thread_title:  Red oxide and rust 

message: "These work by depositing a coating of copper selenide on the surface." doesn't really make sense.150.227.15.253 (talk) 16:53, 1 September 2021 (UTC)
thread_title:  Where would the copper come from