What surface treatment is applied to SUS316L protective vents

2026-06-03

Leave a message

1. Chemical Passivation for Enhanced Protection

  • Removes free iron contaminants – accelerates formation of dense chromium oxide film.
  • Creates invisible passive shield that boosts resistance to pitting and corrosion.
  • Essential for harsh environment applications.

2. Electrolytic Polishing for Smoothness

  • Mirror‑like finish – smooths microscopic peaks and valleys on metal surface.
  • Offers superior hygienic properties – prevents dust, moisture, and corrosive particles from adhering.
  • Ideal for clean and sanitary environments.

3. Mechanical Polishing for Aesthetic Appeal

  • Uses progressively finer abrasives – removes machining marks for uniform satin or bright finish.
  • Reduces surface roughness to limit initiation sites for localized corrosion.
  • Combines professional appearance with functional corrosion resistance.

4. Specialized Coatings for Extreme Conditions

  • Polymer or fluoropolymer coatings – provide impermeable barrier against extreme chemical exposure.
  • Adds supplementary protection beyond natural 316L resistance.
  • Ensures maximum longevity and absolute protection in severe industrial/marine environments.