Astm B580-79 Pdf May 2026

The search for "ASTM B580-79 pdf" is a journey into the history of aluminum surface finishing. While the standard is no longer active, its legacy lives on in countless aircraft, automotive, and industrial components built during the late 20th century.

To recap the best path forward:

Do not rely on dubious free PDFs from sketchy websites. The risk of outdated information, missing tables, or legal liability far outweighs the convenience. By respecting ASTM’s copyright and obtaining a legitimate copy, you ensure that your work meets the highest standards of integrity and precision—exactly as the original committee intended when they published B580 in 1979.

Disclaimer: This article is for informational purposes only. Standards organizations and specifications are subject to change. Always verify current requirements with ASTM International or your industry’s governing body.

ASTM B580-79 (Reapproved 2019) is a standard specification for Anodic Oxide Coatings on Aluminum

. It provides requirements for porous oxide coatings electrolytically formed on aluminum and aluminum alloy parts to improve appearance, corrosion resistance, and abrasion resistance. Scope and Classification The standard identifies seven specific types astm b580-79 pdf

of anodic coatings based on their thickness and intended application: Industry Description Minimum Film Thickness ( Engineering Hard Coat Architectural Class I Architectural Class II Automotive—Exterior Interior—Moderate Abrasion Interior—Limited Abrasion Not specified Chromic Acid Anodizing Not specified Key Requirements Porous Nature

: The specification covers porous coatings; it specifically excludes nonporous barrier layer coatings used for electrical capacitors. Appearance

: Coatings must be continuous, smooth, adherent, and uniform. They should be free from powdery areas, burns, stains, or discolorations.

: Most anodized parts must be sealed in water or aqueous chemical solutions to improve stain and corrosion resistance, except where otherwise specified (such as Type A hard coats). Measurement

: Thickness can be measured using various methods, including eddy-current instruments ( ) or microscopical examination ( Availability and Status The search for "ASTM B580-79 pdf" is a

Standard Specification for Anodic Oxide Coatings on Aluminum

A: First, explain that the standard is withdrawn. Offer to qualify to MIL-A-8625 Type III or ISO 10074, which provide equivalent or superior performance. If they insist on the original, purchase the PDF from ASTM Compass and produce a compliance plan.

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.

If you have legally obtained a copy of ASTM B580-79 and need to use it, follow these guidelines:

What exactly did ASTM B580-79 require? The standard covered several critical aspects of anodizing aluminum, which is an electrochemical process that converts the metal surface into a durable, corrosion-resistant anodic oxide finish. Do not rely on dubious free PDFs from sketchy websites

The standard is essential for defining Class and Type of finishes. When reviewing the PDF, pay close attention to these sections:

  • Color and Appearance: The specification sets guidelines for color uniformity and the absence of defects (like scratches, pits, or burns) that would affect the serviceability of the part.

  • Sealing Quality: The document details testing methods to ensure the anodic coating is properly sealed, which is vital for corrosion resistance and color fastness.

    • Due to its withdrawn status, ASTM B580-79 may not be available for purchase from the official ASTM store. However, it can sometimes be found through: