6 Further information is available in ISo or ASTM B . [7] ASTM B Standard Specification for Passivation of Stainless Steels Using. Classic Electropolishing provides passivation services adhering to ASTM B, passivation using electropolishing for stainless steel series, stainless steel. Designation: B − 02 (Reapproved ) ´1 Standard Specification for Passivation of Stainless Steels Using Electropolishing.

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Post-coating procedures such as post dip and final rinsing shall be performed as well. Electropolishing will also remove heat tint and oxide scale.

According to the ASTM, the electropolisher must axtm post-coating procedures as part of the process, as well as performance testing by means such as a salt spray test, a humidity test or a copper sulfate test.

For a metal finisher to meet these standards for stainless steel passivation, they must adhere to specific protocols and ensure a particular quality of work.

This specification covers the passivation by electropolishing of stainless steel alloys in the, and series, as well as precipitation-hardened alloys.

ASTM B912 Electropolishing Standard

Standard ASTM B applies to pre-electropolishing cleaning and post-electropolishing coating such as a dip and rinse process. Quote Your Next Project. Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided asrm part of the standard.

They allow us to do our job better and not worry about the finish” – Modern Grinding.

This type of stainless steel passivation includesand series alloys and is superior to standard chemical passivation. Classic Electropolishing provides passivation services adhering to ASTM B, passivation using electropolishing for stainless steel series, stainless steel V, stainless steel and stainless steel series.


At Classic Electropolishing quality finishing and polishing is paramount, both to us and to our customers. Surface smoothing obtained by electropolishing will also improve corrosion resistance.

The ASTM B electropolishing specification outlines the electropolishing process for stainless steel alloys.

What Does This Mean? This specification does not purport to address all of the safety concerns, if any, associated with its use. Website by Dan Voell. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

This abstract is a brief summary of the referenced standard. Reach out to us electropolished on Twitter. Able Electropolishing meets the high standards of the American Society for Testing and Materials ASTMincluding those for stainless steel passivation using electropolishing. We do not have any trade shows on our calendar presently, we will update our calendar soon.

If you are an engineer working on a drawing just add the following note to your product “passivation per ASTM B” and we will know what to do.

Electropolishing standards are used by a wide variety of industries. Classic Electropolishing adheres to the following additional standards: Surface passivation occurs simultaneously with electropolishing under proper operating conditions.

Some industries classify the process using standards outside of ASTM.

ASTM B Passivation Using Electropolishing

Because Able Electropolishing adheres to the ASTM B electropolishing guidelines for stainless steel passivation, our clients know what quality of work to expect when we process various types of stainless steels. Twitter Facebook info electropolishing. No other units of measurement are included in this standard. These factors and others determine eligibility for meeting this specification.


The performance of the specimens during passivation shall be evaluated by one or more of the following procedures: The quality of passivation will depend on the type of stainless steel, the formulation of the electropolishing solution, and the conditions of operation.

By maintaining tight control of our processing parameters, we are able to continue to meet the rigid guidelines of b9112 ASTM, providing our clients not only with superior results in a timely fashion, but also peace of mind that their work is in good hands.

If you have a process that you would like us to adhere to, aastm hesitate to reach out and see if we can help. Customer Quotes “We have never had an issue with Classic Electropolishing. Free iron on the surface of the stainless steel is removed resulting in improved corrosion resistance.

ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. Basis materials shall be free of clearly visible defects, and if necessary, shall undergo preparatory cleaning procedures prior to electropolishing. Electropolishing and Passivation Standards. Historical Version s – view previous versions of standard. It covers both the passivation of stainless steel and the precipitation via electropolishing.

It is the responsibility of the user of this standard ast, establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior aztm use.