The ASTM A passivation standard ensures high quality results for passivated stainless steel. Learn how Able Electropolishing meets these standards. 35A, AMS C, ASTM A and ASTM A standards. Passivation alone will not remove heavy adherent oxide films created from heat treatment. Delstar Metal Finishing offers passivation services that meet the ASTM (American Society for Testing and Materials) A standards. The ASTM A standards.

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Various organizations and groups present specifications for the processes involved in metal finishing treatments. They supply exact and stringent standards finishing companies rely on to provide the best products possible.

For the passivation of stainless steel components, the document for the passivation specification is known as ASTM A Passivation is the overlaying of a substrate or base layer with another metal.

The intent is to remove any foreign or undesirable traits and improve the corrosion resistance of the stainless steel component. Chemical passivation has as its major goal to provide a layer of protection over the base metal.


ASTM A967 Passivation Standard

It helps to guard against the elementary forces of the environment into aetm the component will function in. Passivation is one of the most popular forms of metal finishing along with electro and electroless plating and industrial powder coating.

At its basis, the intent of this specification is to ensure that metal finishing shop adtm either citric or nitric passivation correctly to produce quality results. This is applicable all across the globe and replicable by any metal finishing shop.

The approach involves several steps.

The standards of ASTM A provide specific details of the acceptable methods required for passivating stainless steel. The passivation standards listed in the ASTM document embrace a variety of potential methods and techniques.

ASTM A967 vs. AMS 2700? Which is the right passivation spec?

Asym also are very specific on such aspects as recommendations and precautions for such things as cleaning, descaling and tests. The tests the ASTM document considers valid are the following:.


The ASTM has established certain criterion to achieve consistent aztm quality in the metal finishing industry. By adhering to the specifications provided them, ProPlate is capable of guaranteeing each product they produce will be as those that follow.

ASTM A Standard Passivation Treatment For Stainless Steel

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The tests the ASTM document considers valid are the following: Copper sulfate a697 Damp Cloth Test High humidity testing Potassium Ferricyanide—Nitric Acid Test Salt spray testing Water immersion testing The instructions for conducting such tests as well as the acceptable results are also provided.