Disadvantages Of Black Oxide Coating Stainless Steel

As advantageous as this supplementary feature undoubtedly is black oxide failure does occur so we need to stay abreast of the common problems incurred by this oxidizing process.
Disadvantages of black oxide coating stainless steel. Prized both for the. Black oxide stainless steel nuts bolts and washers are the most common form of black oxide fastener available. What is black oxide. One of its advantages over other coatings is.
Assessing process variables as with any high end engineering process numerous variables are at work during a black oxide coating sequence. To achieve maximal corrosion resistance the black oxide must be impregnated with oil or wax. Epi s line of high temperature blackeners offers impressive abrasion and corrosion resistance and several products meet military and ams specifications. The main point of stainless steel is the surface is more corrosion resistant as the bare metal usually with passivation of course.
If you must then stainless can be painted or powder coated without too much trouble but processes like black oxide and electroplating typically require stainless to be activated using a very harsh acid mix. It is used to add mild corrosion resistance for appearance and to minimize light reflection. Black oxide or blackening is a conversion coating for ferrous materials stainless steel copper and copper based alloys zinc powdered metals and silver solder. The black oxide treatment is also referred to as gun bluing.
Black oxide like other coatings is used to provide protection to the part achieve a required appearance or achieve other desired properties.