Stainless steel
Passivation
Passivation removes free iron contamination from stainless steel and restores the chromium-rich oxide layer, improving corrosion resistance with no measurable coating added. We use citric acid rather than nitric, to AMS 2700 Type 2. For aluminium conversion coatings, see our conversion coatings service.
- Material
- Stainless steels
- Standard
- AMS 2700 Type 2 (Citric)
- Turnaround
- 3–5 working days
| Materials | Stainless steels |
|---|---|
| Coating | None measurable (a cleaning/restoration process) |
| Standards | AMS 2700 Type 2 (Citric) |
| Compliance | RoHS and REACH compliant |
| Turnaround | Typically 3–5 working days · 24-hour service on request |
| Typical uses | Medical, food processing, marine, aerospace, precision stainless components |
Maximum part size
Max 15 kg
| Finish | Max weight | Max size (L × D × Br) |
|---|---|---|
| Citric passivation | 15 kg | 450 × 225 × 500 mm |
Frequently asked questions
- ISO 9001 certified
- Made in Britain member
- IMF member (Institute of Metal Finishing)
- Free Certificate of Conformity
- Fast turnaround: 3–7 days, 24-hour service on request
- 25+ years’ combined experience