Metal Black Oxide Coating

Black oxide or blackening is a conversion coating for ferrous materials stainless steel copper and copper based alloys zinc powdered metals and silver solder.

Metal black oxide coating.

Black oxide does not effect the dimension of the part. Other names for black oxide are. Black penetrate black magic black n and gun bluing. It is used to add mild corrosion resistance for appearance and to minimize light reflection.

Black oxide is a conversion coating formed by a chemical reaction formed when parts are dipped into an alkaline salt solution. What is black oxide. Was the first metal finishing and fastener sorting company in the u s. Black oxide works on steel or iron parts only and will not blacken stainless steel use stainless steel blackener.

To receive iso 14001 certification. Black oxide can also provide corrosion resistance for equipment gear or parts when the treated metal is oiled. To achieve maximal corrosion resistance the black oxide must be impregnated with oil or wax. Contrasted to an applied coating which bonds to the metal but does not react chemically a black oxide conversion coating is applied to ferrous alloys when oxidizing salts react with the iron to.

Black oxide does not exhibit a smoothing effect like plating or painting. Is the largest black oxide shop in the continental united states. Offers several different types of metal finishings and coatings to suit the needs of our customers. Acton metal processing corp a specialty metal finishing job shop has been providing superior quality and service since 1960 and is a recognized industry leader in the application of black coatings on metal.

One of its advantages over other coatings is. Metal finishing technology offers black oxide. Our services include processess such as black oxide finishing phosphate coating passivation ndt blasting and deburring. How black oxide coating works.

Dipping a metal part into a heated alkaline liquid for a specific period of time triggers the chemical process that forms magnetite on the part s surface. We have specialized in black oxide for over twenty five years. The point of the black oxide process is to create magnetite fe3o4 an alloy of iron and oxygen molecules on the surface of the metal. Black oxide is a conversion coating formed by a chemical reaction with the iron in the metal to form an integral protective surface.

Some hardened and specialized steel alloys may blacken to a deeper black finish when activated using our black oxide activator. If rust or scale is present on the part additional steps such as acid pickling or alkaline de scaling may have to be. Black oxide is a type of conversion coating that provides metals with a matte black appearance and dimensional stability.