Black Oxide (Steam Treating) is a controlled oxidizing method to provide corrosion resistance. Steam Treating can be performed as a part of the Nitriding cycle, or performed as a stand- alone process.
- Improves wear resistance
- Improves corrosion resistance
- Provides a uniform blue-black finish
When applied to low and medium density powder metal parts, the oxide film will seal the surface pores. This increases part hardness and compressive strength.