It is important to note that ASTM B580-79 has been formally by ASTM International without a direct replacement, though its methodologies are often covered under broader standards like ASTM B244 (thickness testing) or military standards like MIL-A-8625 . However, if a contract or blueprint explicitly specifies ASTM B580-79, manufacturers are legally obligated to follow the parameters outlined in that specific historical text. Why ASTM B580 Matters in Modern Manufacturing
ASTM B580-79 is a standard specification established by ASTM International that defines the requirements for for engineering use. The suffix "-79" indicates the standard was originally approved or significantly revised in 1979 (and subsequently reapproved periodically).
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Specifying Type B and C coatings for high-traffic building storefronts and curtain walls. astm b580-79 pdf
The standard is essential for defining and Type of finishes. When reviewing the PDF, pay close attention to these sections:
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Do you need to compare ASTM B580 to for defense-related applications? Share public link It is important to note that ASTM B580-79
: For certain applications, the wear resistance of the coating is critical. The standard may specify tests to evaluate the coating's hardness and resistance to abrasion.
Whether you are working with hard‑coat anodizing for engineering wear resistance, architectural Class I finishes for building exteriors, or chromic acid anodizing for aircraft components, ASTM B580 provides the authoritative framework for achieving consistent, durable, and verifiable anodic coatings on aluminum. By understanding the standard’s scope, its seven coating types, its revision history, and the availability of the PDF, you are equipped to specify, inspect, and apply porous anodic oxide coatings with confidence.
Chromic Acid — For specialized corrosion protection, often in aerospace. MyStandards.biz General Requirements The suffix "-79" indicates the standard was originally
If you only need to reference the document once, some university engineering libraries maintain physical archives of old ASTM standards. Request an interlibrary loan through your local library. You may be able to view a physical copy for free, though scanning or reproduction will be limited by copyright.
MIL-A-8625 is a military specification that covers three types of anodizing (Type I – chromic acid, Type II – sulfuric acid, Type III – hard coat). ASTM B580-79 was a civilian standard focused primarily on sulfuric acid anodizing. MIL-A-8625 Type III is the direct replacement for B580-79 Type II hard coat.
* The standard notes that hard coatings can vary in thickness from 12 μm to over 100 μm. The minimum thickness for Type A is 50 μm unless otherwise agreed upon, and these coatings are not sealed unless specified.
ASTM International. ASTM B580-79: Standard Specification for Anodic Oxide Coatings on Aluminum . ASTM, 1979. (Withdrawn)