ASTM B912-02(2018)
Standard Specification for Passivation of Stainless Steels Using Electropolishing

Standard No.

ASTM B912-02(2018)

Release Date

2018

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM B912-02(2018)

Scope

1.1 This specification covers the passivation of stainless steel alloys in the 200 (UNS2XXXX), 300 (UNS3XXXX), and 400 (UNS4XXXX) series, and the precipitation-hardened alloys, using electropolishing procedures. NOTE 1—Surface passivation occurs simultaneously with electropolishing under proper operating conditions. The quality of passivation will depend on the type of stainless steel, the formulation of the electropolishing solution, and the conditions of operation. Free iron on the surface of the stainless steel is removed resulting in improved corrosion resistance. Surface smoothing obtained by electropolishing will also improve corrosion resistance. Electropolishing will also remove heat tint and oxide scale. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This specification may involve hazardous materials, operations, and equipment. This specification does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM B912-02(2018) Referenced Document

• ASTM A380/A380M Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems*， 2024-04-20 Update
• ASTM A967/A967M Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts*， 2024-04-20 Update
• ASTM B117 Standard Practice for Operating Salt Spray (Fog) Apparatus
• ASTM B322 Standard Guide for Cleaning Metals Prior to Electroplating*， 2020-11-01 Update
• ASTM B374 Standard Terminology Relating to Electroplating
• ASTM B602 Standard Test Method for Attribute Sampling of Metallic and Inorganic Coatings
• ASTM D3951 Standard Practice for Commercial Packaging
• ISO 15730 Metallic and other inorganic coatings — Electropolishing as a means of smoothing and passivating stainless steel*， 2023-05-16 Update
• ISO 2080 Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings — Vocabulary*， 2022-03-08 Update
• ISO 4519 Electrodeposited metallic coatings and related finishes; Sampling procedures for inspection by attributes
• ISO 9227 Corrosion tests in artificial atmospheres — Salt spray tests — Amendment 1: Footnote of Warning*， 2024-02-19 Update

ASTM B912-02(2018) history

• 2018 ASTM B912-02(2018) Standard Specification for Passivation of Stainless Steels Using Electropolishing
• 2002 ASTM B912-02(2013) Standard Specification for Passivation of Stainless Steels Using Electropolishing
• 2002 ASTM B912-02(2008)e1 Standard Specification for Passivation of Stainless Steels Using Electropolishing
• 2002 ASTM B912-02 Standard Specification for Passivation of Stainless Steels Using Electropolishing
• 2000 ASTM B912-00 Standard Specification for Passivation of Stainless Steels Using Electropolishing