Intended to improve the corrosion resistance of parts made from austenitic, ferritic and martensitic corrosion resistant steels of the 200, 300, and 400 series and precipitation hardened corrosion resistant steels. 440C grades may be exempt from passivation treatments at the discretion of the procuring activity.
AMS 2700. ASTM-A380. QQ-P-35C · ASTM-A967
Medium temperature nitric acid solution with sodium dichromate additive.
Low temperature nitric acid solution
Medium temperature nitric acid solution.
Medium temperature high concentration nitric acid solution.