Standard Specification for Anodic Oxide Coatings on Aluminum
The scope of ASTM B580-79 covers the requirements for anodic oxide coatings applied to aluminum and aluminum alloys for architectural, decorative, and functional applications. The standard defines the types of anodic oxide coatings, their characteristics, and the testing methods to ensure compliance. astm b580-79 pdf
ASTM B580 categorizes finishes into classes based on the minimum anodic coating thickness (measured in micrometers or mils). Standard Specification for Anodic Oxide Coatings on Aluminum
: Thickness can be measured using various methods, including eddy-current instruments ( ) or microscopical examination ( Availability and Status : Thickness can be measured using various methods,
: Does not cover nonporous barrier layer coatings (like those in capacitors).
Many defense and aerospace components produced from 1980 through the mid-1990s were manufactured to this specific revision. If you are maintaining aging aircraft, military ground vehicles, or naval equipment, the original drawings may explicitly call out "ASTM B580-79." To validate a repair or replacement part, engineers must reference the exact standard used at the time of original manufacturing.
The specification categorizes coatings into seven distinct types (A through G) based on their thickness and intended service conditions: Accuris Standards Store Porous Oxide Coatings
