: Used where precise tolerances are required. Type G Specialty : Tailored for unique service conditions. Industrial Applications
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ASTM B580-79 (reapproved in 2019) is a standard specification for Anodic Oxide Coatings on Aluminum
While the "79" refers to the original 1979 approval, the standard has been reapproved multiple times (e.g., 2014, 2019). The most current active version is ASTM B580-25 , published in April 2025. astm b580-79 pdf
Because ASTM standards are protected by copyright laws, official PDF copies cannot be downloaded freely or shared legally on open public forums.
🔍 To find a historical PDF for reference:
Exterior architectural structures exposed to harsh weather. Type C (Architectural Class II) Minimum Thickness: 10 micrometers (0.4 mils)
The number "79" indicates the year the standard was originally approved or last majorly revised (1979). While newer standards and revisions exist, many legacy blueprints, military contracts, and manufacturing guidelines still explicitly call out ASTM B580-79. Classification of Anodic Coatings (Types) : Used where precise tolerances are required
Finding the exact for an ASTM B580 classification.
: For high-speed parts that need superior abrasion resistance.
: 2.5 micrometers (μm) / 0.0001 inches (0.1 mils).
Architectural Class I — Used for exterior surfaces with high durability requirements. ASTM B580-79 (reapproved in 2019) is a standard
Sets guidelines for salt spray testing (ASTM B117) to ensure the coating prevents the underlying aluminum from pitting. Why Professionals Search for the ASTM B580-79 PDF
: Designed to withstand harsh outdoor environments, including UV exposure and atmospheric pollution. Commonly specified for window frames, curtain walls, and building facades. Type C (Architectural Class II)
Patent disputes, failure analysis, and product liability cases often require reviewing the state of the art at a specific point in time. ASTM B580-79 represents the industry baseline for anodizing in the late 1970s. Legal teams and forensic engineers search for the PDF to establish what constituted "acceptable practice" when a component was originally made.
The standard dictates that the anodized surface must be free of visible defects such as burns, blisters, powdery patches, or scratches that could compromise the integrity or aesthetics of the protective layer. How to Reference ASTM B580-79 on Engineering Drawings