Black Oxide

Black oxide or blackening is a conversion coating for ferrous materials, stainless steel, copper and copper-based alloys. To achieve maximal corrosion resistance, the black oxide must be impregnated with oil or wax. One of its advantages, over other coating processes, is its minimal build-up.
Materials: Copper, Copper-Based Alloys, Ferrous Materials, Powdered Metals, Silver Solder, Stainless Steel, Zinc
Finishes: Black
Properties: Appearance, Light Reflection Reduction, Mild Corrosion Resistance
Sectors: Automotive, Decorative Application, Instrumentation, Military (Firearms)
Specifications: MIL-DTL-13924, AMS 2485 REV.K, MIL-F-495 E
MIL-DTL-13924
| CLASS 1 | IRON ALLOY STEEL |
| CLASS 2 | TEMPERED MATERIAL |
| CLASS 3 | SALT TEMPERED |
| CLASS 4 | OTHER STEEL ALLOYS |
AMS 2485 REV.K
| NO CLASS | WITH OIL/TEST WITH OXALIC ACID |