SAE AMS 2700F:2018 pdf free

SAE AMS 2700F:2018 pdf free.Passivation of Corrosion Resistant Steels
While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.
The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply.
Parts shall be swabbed with or immersed in a test solution containing 8 g of copper sulfate (CuSO4 5H2O) and2to3 mL of sulfuric acid (H2SO4, sp. gr. 1.84) in 500 mL of high purity water having a conductivity of 5μS/cm or less (see 8.14), keeping the surface wet for not less than 6 minutes. Rinse and dry the surface without disturbing any deposits. A copper colored deposit indicates the presence of unacceptable free iron. The effectiveness of copper sulfate solutions shall be validated by one of the following methods:
a. Periodic chemical analysis in accordance with 4.2.2.1.
b. Verification before use. A test specimen of any convenient size, made from any carbon or low alloy steel (e.g., 1018 or 4130) and properly cleaned, shall exhibit a copper-colored deposit when subjected to the test above. V erification does not need to be performed more than once in any production day.
After completion of processing, there shall be no evidence of etching, pitting, smutting, frosting, dimensional changes, or other chemical attack on the parts when visually examined without aid of magnification. However, loss of temper color is acceptable.SAE AMS 2700F pdf free download.