⚠️ This specification has been withdrawn by ASTM International. As a historical document (issued in 1979), it is no longer maintained as an active standard.

: Due to its high strength-to-weight ratio and resistance to corrosion, anodized aluminum is widely used in the aerospace sector for aircraft components.

: Parts are typically sealed in water or aqueous chemical solutions to enhance corrosion resistance, unless otherwise specified for specific industrial needs.

Thin Protective — Used where minimal dimensional change is required.

This standard categorizes anodic coatings into based on their intended service environment and minimum film thickness:

If you're in aerospace, automotive, or industrial manufacturing, you've likely come across . This standard is a pillar for specifying electrolytically formed porous oxide coatings on aluminum parts where durability and appearance are critical. 🔍 What is ASTM B580-79?

: Each coating must be continuous, smooth, and free of defects like stains, burns, or loose films. Seven Classification Types