Black Oxide Steel Sheet

The type ab point has the conical tip of a type a point with the finer spaced threads of a type b point.

Black oxide steel sheet.

With a uniform 0 000030 inch 1 micron thickness the porous crystalline structure of the black finish makes it an excellent absorbent base for a rust preventive top coat. Black oxide or blackening is a conversion coating for ferrous materials stainless steel copper and copper based alloys zinc powdered metals and silver solder. One of its advantages over other coatings is. Steel sheet metal screw black oxide finish 82 degrees flat head phillips drive type ab 6 20 thread size 3 8 length pack of 100 4 3 out of 5 stars 10 misc.

The pvd physical vapor deposition surface treatment is quote durable and is actually harder than the stainless steel surface itself. Epi s mid temperature black oxide process kool blak 225 blackens steel in 30 45 minutes and converts it to black iron oxide magnetite which provides a glossy black finish as well as protection for the part. To achieve maximal corrosion resistance the black oxide must be impregnated with oil or wax. The black oxide finish steel sheet metal screw with truss head and phillips drive has a type ab point for forming threads in thin metals between 0 015 and 0 050 thick and resin impregnated plywood.

A non dimensional presto black oxide for steel is a low cost way to achieve good corrosion protection and enhance sales appeal. It is used to add mild corrosion resistance for appearance and to minimize light reflection.