1.1 This specification covers requirements for electrolytically formed porous oxide coatings on aluminum and aluminum alloy parts where appearance, abrasion resistance, electrical properties, and protection against corrosion are important. Nonporous, barrier layer anodic coatings used for electrical capacitors are not covered. Seven types of coatings as shown in Table 1 are provided. Definitions and typical examples of service conditions are provided in Appendix X1.
Note 1-It is recognized that uses exist in which modifications of the coatings covered by this specification may be required. In such cases the particular properties desired by the purchaser should be the subject of agreement between the purchaser and the manufacturer.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
B110 Method for Testing Dielectric Strength of Anodically Coated Aluminum
B117 Practice for Operating Salt Spray (Fog) Apparatus
B136 Method for Measurement of Stain Resistance of Anodic Coatings on Aluminum
B137 Test Method for Measurement of Coating Mass Per Unit Area on Anodically Coated Aluminum
B244 Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Nonconductive Coatings on Nonmagnetic Basis Metals with Eddy-Current Instruments
B368 Test Method for Copper-Accelerated Acetic Acid-Salt Spray (Fog) Testing (CASS Test)
B457 Test Method for Measurement of Impedance of Anodic Coatings on Aluminum
B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
B538 Method of FACT (Ford Anodized Aluminum Corrosion Test)
B602 Test Method for Attribute Sampling of Metallic and Inorganic Coatings
D658 Test Method for Abrasion Resistance of Organic Coatings by Air Blast Abrasive
E429 Test Method for Measurement and Calculation of Reflecting Characteristics of Metallic Surfaces Using Integrating Sphere Instruments
E430 Test Methods for Measurement of Gloss of High-Gloss Surfaces by Abridged Goniophotometry
MIL-STD-414 Sampling Procedures and Tables for Inspection by Variables for Percent Defective
Aluminum alloys--specifications; Aluminum alloys (anodic coatings)--specifications; Aluminum coatings--specifications; Anodic coatings--Al/Al alloys);
ICS Number Code 25.220.20 (Surface treatment)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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