This specification establishes the for anodic coatings on aluminum alloys. This process has been used typically to increase corrosion resistance and to provide surfaces which will promote adherence of paint and other organic finishes, and has been found useful for assemblies which have faying surfaces and/or which may trap electrolyte, but usage is not limited to such applications. This process is primarily applicable to aluminum and aluminum alloy parts which have nominal copper content not greater than 5% by weight or total nominal alloy content not greater than 7.5% by weight, AMS 2471 being recommended for parts having higher alloy content. Coating may be dyed if specified, but AMS 2472 is recommended where a colored finish is required.
SAE AMS2470M-2007 history
2019SAE AMS2470P-2019 Anodic Treatment of Aluminum Alloys Chromic Acid Process
2013SAE AMS2470N-2013 Anodic Treatment of Aluminum Alloys, Chromic Acid Process
2011SAE AMS2470H-2011 ANODIC TREATMENT OF ALUMINUM ALLOYS Chromic Acid Process
2007SAE AMS2470M-2007 Anodic Treatment of Aluminum Alloys, Chromic Acid Process
2000SAE AMS2470L-2000 Anodic Treatment of Aluminum Alloys, Chromic Acid Process
1999SAE AMS2470K-1999 Anodic Treatment of Aluminum Alloys Chrome Acid Process
1995SAE AMS2470J-1995 PROTECTIVE TREATMENTS FOR ALUMINUM BASE ALLOYS
1974SAE AMS2470G-1974 ANODIC TREATMENT OF ALUMINUM ALLOYS Chromic Acid Process
1966SAE AMS2470F-1966 ANODIC TREATMENT OF ALUMINUM BASE ALLOYS Chromic Acid Process
1962SAE AMS2470E-1962 ANODIC TREATMENT OF ALUMINUM BASE ALLOYS Chromic Acid Process
1959SAE AMS2470D-1959 ANODIC TREATMENT OF ALUMINUM BASE ALLOTS Chromic Acid Process
1947SAE AMS2470C-1947 ANODIC TREATMENT FOR ALUMINUM BASE ALLOYS (Chromic Acid Process)
1946SAE AMS2470B-1946 ANODIC TREATMENT FOR ALUMINUM BASE ALLOYS (Chromic Acid Process)
1942SAE AMS2470A-1942 PROTECTIVE TREATMENTS FOR ALUMINUM BASE ALLOYS
1940SAE AMS2470-1940 PROTECTIVE TREATMENTS for ALUMINUM BASE ALLOYS