Advantages of Oxidation Process
Corrosion Protection: Depending on post-oxidation processes, black oxidation can provide corrosion resistance resistant to 144 hours salt test.
Dimensional stability: No increase in part dimensions after oxidation. This provides corrosion protection for critically sized parts.
Improved lubricity: Lubrication after oxidation not only protects against corrosion, but also provides a smooth surface and compatible working parts.
Prevents friction adhesion: When fitting the matching parts, the anti-friction surface is sacrificed during the first contact and wear of the outer slippery surface while the surfaces with working hardness are formed. The black oxidation itself has a hardness of 5.5 on the Moh scale.
Decorative: Glossy black surface gives the parts visual appeal and quality image at very low cost. 40 HRC and higher hardness of parts with high gloss, polished appearance is provided.