What are the industry standards for RA?

The industry standard Ra for surface finishes of injectables vessels is usually 15 Ra (microinch) or better. Astro Pak’s technicians generally arrive at single digit Ra’s using mechanical...

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Posted by Mike Montgomery Category: 2017

Why is it Important to Passivate after Electropolishing?


Although, Electropolishing can be considered a passivation process, it is only as good as using phosphoric acid. With phosphoric acid typically we see chrome to iron ratios in the range of 1.2...

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What is Passivation?

As defined in MIL-STD-753C, Passivation is the final treatment/cleaning process used to remove iron from the surface of corrosion resistant steel parts such that a more uniform formation of a passive...

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