- Avadh Forging, Shapar(Veraval)
- info@jagrutimetal.com
- 98790-99821
Passivation is a chemical treatment process that enhances the natural corrosion resistance of stainless steel and other corrosion-resistant alloys. The process removes free iron and other surface contaminants left behind after machining, fabrication, or handling, and helps regenerate a protective chromium oxide layer on the metal surface.
At Electrochem Finish, our state-of-the-art Passivation Plants are designed to meet the stringent requirements of industries such as pharmaceuticals, food processing, aerospace, marine, and medical devices where surface cleanliness and corrosion resistance are critical.
Cleaning & Degreasing: Parts are thoroughly cleaned to remove oils, grease, and debris.
Acid Bath Treatment: Stainless steel is immersed in a passivation solution (commonly nitric acid or citric acid).
Oxide Layer Formation: The treatment removes free iron and allows the formation of a uniform, inert chromium oxide layer.
Rinsing & Drying: Parts are rinsed with deionized water and dried to prevent water spots or recontamination.
✅ Enhanced Corrosion Protection
✅ Non-Dimensional Process – No change in surface finish or part dimensions
✅ Meets Cleanroom & Sanitary Standards
✅ Eco-Friendly Options – Citric acid-based passivation available
✅ Custom Tank Sizes for Small to Large Components
✅ Repeatable & Controlled Results
Multi-Tank Setup for degreasing, rinsing, passivation, and neutralization
Temperature and pH Controlled Baths for consistency and safety
Automation Options Available for high-volume or precision processing
Fume Extraction and Scrubber Units for safe operation
Integrated Effluent Treatment for eco-compliance
| Feature | Citric Acid | Nitric Acid |
|---|---|---|
| Eco-Friendliness | ✅ Safe and biodegradable | ❌ Requires handling precautions |
| Effectiveness | ✅ Highly effective | ✅ Highly effective |
| Compliance | ASTM A967 | ASTM A967 & A380 |
| Suitability | All stainless steels | Widely used, especially in legacy systems |
We offer both options based on your component type, industry regulations, and environmental needs.
