Passivation Services,Stainless Steel Coating Services,Northern IL

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National Association
National Association of Metal Finishers

of Metal Finishers

Chicago Metal Finishers Institute American Electroplaters and Surface Finishers Society, Inc.

American Electroplaters and
Surface Finishers Society, Inc.

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	Passivation Services

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Passivation is the removal of exogenous iron or iron compounds from the surface of stainless steel by means of a chemical dissolution, most typically by a treatment with an acid solution that will remove the surface contamination, but will not significantly affect the stainless steel itself. In addition, it also describes passivation as "the chemical treatment of stainless steel with a mild oxidant, such as a nitric solution, for the purpose of enhancing the spontaneous formation of the protective passive film.”

In lay terms, the passivation process removes "free iron" contamination left behind on the surface of the stainless steel from machining and fabricating. These contaminants are potential corrosion sites that result in premature corrosion and ultimately result in deterioration of the component if not removed. In addition, the passivation process facilitates the formation of a thin, transparent oxide film that protects the stainless steel from selective oxidation (corrosion).

Capabilities

Specification		AMS2700 ASTM A967 QQ-P-35

Substrates		Stainless steel (All Alloys)

Plating Chemistry		Nitric Solution

Finishes		Clear/Transparent

Quality Assurance		Mil-C-45662 Mil-I-45208 with the inspection schedules in accordance with Mil Std.105. Mil-Q-9858

Order Quantity		From single-quantity/prototype to production orders

Typical Lead Time		3 Working Days ARO Standard Expedited Same Day Service (On Request)

Passivation Services

Specification

Substrates

Plating Chemistry

Finishes

Quality Assurance

Order Quantity

Typical Lead Time