Thank you for visiting the Advanced Plating Technologies Specification Database. Below is a technical summary of specification SP-112 from ACMI for Passivation. For more information on our full line of Passivation services please visit our passivation of stainless steel page. You can also request a quote or contact a member of our technical sales team for more information.
Application: Passivation for Free Machining Stainless Steels: (Includes AISI Types 303, 416, 420F, 430F, and 440F)
Plate Thickness: 5% sodium hydroxide, hot water rinse, 20% nitric acid and 2% sodium dichromate, water rinse, 5% sodium hydroxide, water rinse
Strike Thickness: 30 mins at 160-180 degrees F (NaOH), hot water rinse at 180 degrees F, 30 mins at 120-140 degrees F (nitric), water rinse, 30 mins at 160-180 degrees F (NaOH)
Notes: This process is AAA treatment for free machining stainless steel. APT has developed the best AAA process in the industry. For more information, visit our passivation page on our website.Back to Spec Database
The information provided within the Advanced Plating Technologies’ database is for reference only and is not intended to be a comprehensive summary of any specification’s content. Rather the database was designed to provide a brief summary of the specification’s subject matter to provide a sound context of the specification’s contents and engineering purpose. Advanced Plating Technologies cannot guarantee that the specifications contained therein are the most current revisions. In addition, Advanced Plating has no affiliation with any of the organizations, agencies or companies contained within the database. We hope you find the APT specification database a useful online resource and value any feedback you may have. Although the data provided in this database has been obtained or adapted from sources that are believed by us to be reliable, no warranty expressed or implied is made by us regarding the accuracy, adequacy, completeness, reliability or usefulness of any data. The data is provided strictly for reference purposes. Only our standard product and service warranties apply to finished goods supplied by Advanced Plating Technologies. To the extent that any third party company or agency is identified as a data source, Advanced Plating Technologies is not associated with such company or agency and that such company or agency is not identified for purposes of advertising, endorsement or recommendation by APT. If you find any errors or omissions in the data, we encourage you to report them to us.