Get an instant quote
Get in touch Listen to our podcast
cnc machined part with passivation surface finish

CNC Passivation Services

We offer passivation services for CNC
stainless steel & other alloys

Get a quote today
Rapid prototyping
and full-scale production
ISO accredited
& QC checks
All in-house
processes
Used in over
50 countries
FREE Instant
quotations

Applicable toAppearance
Stainless steel and other alloysVery light blue

Passivation

Passivation is a chemical treatment for stainless steel and other alloys that enhances the ability of the treated surfaces to resist corrosion.

cnc machined steel part with passivation

Main AdvantagesWorth Noting
  • Removes surface contamination
  • Reduces risk of contamination
  • Provides better corrosion resistance
  • Provides a shiny surface
  • Results in electrically non-conductive aluminium parts
  • Passivation does not depend on electrochemical reactions
  • Passivating is not a method to remove oxide scale from machined parts

How Passivation Works

In stainless steel, the passivation process uses nitric acid or citric acid to remove free iron from the surface. The chemical treatment creates an outer layer of shield or passivation film that enhances the ability of the treated surfaces to resist corrosion.

cnc machined steel components with passivation surface finish
cnc machined part with passivation surface finish

CNC Passivation Services

We offer passivation services for CNC
stainless steel & other alloys

Get a quote today