Passivation improves the corrosion resistance of parts made from 200, 300 and 400 series and precipitation-hardened corrosion-resistant steels by removing soils and free iron.
Passivation does not remove heat treat scale. It is usually removed by glass bead blasting. 440C materical is not normally passivated. Cleaning by mechanical methods is recommended.
We are in full compliance with over 300 military, aero-space and private specifications. Below are some common specs. Please give us a call for information on other specifications.
Passivation = $65
Optional Lab Test = $30
Optional Lab Report = $15