Designation: B633 13

Designation: b633 13 Standard Specification forElectrodeposited Coatings of Zinc on Iron and Steel1 This standard is issued under the fixed designation b633 ; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon ( ) indicates an editorial change since the last revision or standard has been approved for use by agencies of the Department of This specification covers material and process require-ments for electrodeposited zinc coatings applied to iron or steelarticles to protect them from The coatings are provided in four standard thicknessclasses ( ), in the as-plated condition or with one of fivetypes of supplementary finishes ( ).

and that have been machined, ground, cold formed, or cold straightened, shall be heat treated for stress relief to reduce the risk of hydrogen embrittlement in the part before clean and electroplate processes. If these heat treatments are not required, the purchaser shall specify in the ordering information their

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