Disadvantages Of Black Oxide Coating Stainless Steel

The black oxide treatment is also referred to as gun bluing.

Disadvantages of black oxide coating stainless steel.

Black oxide like other coatings is used to provide protection to the part achieve a required appearance or achieve other desired properties. Epi s line of high temperature blackeners offers impressive abrasion and corrosion resistance and several products meet military and ams specifications. Hot temperature black oxide processes produce glossy black blue coatings and true black oxide magnetite finishes in 10 20 minutes. When fasteners are dipped into the black oxide bath materials warm and hot processes the harsh chemical components convert the top layer into magnetite.

Black oxide is a form of coating used as a finish for ferrous metals stainless steel and copper and its alloys. 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. Assessing process variables as with any high end engineering process numerous variables are at work during a black oxide coating sequence. Black oxide stainless steel nuts bolts and washers are the most common form of black oxide fastener available.

What is black oxide. 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. Prized both for the. It is used to add mild corrosion resistance for appearance and to minimize light reflection.

The main point of stainless steel is the surface is more corrosion resistant as the bare metal usually with passivation of course.