ASTM International’s online platform, ASTM Compass, is the definitive source. You can:
Steps:
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 While the standard is no longer active, its legacy lives on in countless aircraft, automotive, and industrial components built during the late 20th century.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 The risk of outdated information, missing tables, or legal liability far outweighs the convenience.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.
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.
If you need an authentic, high-resolution copy of this historical standard, here are the only legitimate pathways:
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.
This write-up is for informational purposes only. ASTM retains copyright over its standards. Users should seek current standards from official sources when compliance or certification is required.
The ASTM B580-79 standard establishes the specific requirements for producing electrolytically formed porous oxide coatings on aluminum and aluminum alloy parts. It is primarily used to ensure high-quality finishes where appearance, abrasion resistance, and corrosion protection are critical. Key Specification Features
This standard categorizes anodic coatings into seven distinct types based on their intended service environment and minimum film thickness:
Type A (Hard Coat): Used for engineering purposes where high abrasion resistance is required; typically has a minimum thickness of unless otherwise specified.
Type B (Exterior Architectural): Designed for heavy maintenance or severe exposure, requiring a minimum thickness of
Type C (Exterior Architectural): Suitable for regular maintenance or less severe exposure, with a minimum thickness of astm b580-79 pdf
Type D (Automotive Exterior): Specifically tailored for exterior automotive trim, requiring at least of thickness.
Type E (Interior Moderate Abrasion): Used for indoor applications with moderate wear, with a minimum thickness.
Type F (Interior Limited Abrasion): For decorative indoor use with minimal wear, requiring a minimum thickness.
Type G (Chromic Acid): Specialized thin coatings, often used as a paint base, with a minimum thickness. Performance Requirements
Surface Quality: Coatings must be continuous, smooth, adherent, and free from defects such as "burns," powdery areas, stains, or discontinuities.
Sealing: Most anodized parts must be sealed in water or aqueous chemical solutions to improve corrosion and stain resistance, except when specifically excluded (like some Type A hard coats).
Exclusions: This standard does not cover nonporous barrier layer coatings used for electrical capacitors. Standard Status & Accessibility
Latest Version: 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.
PDF Access: You can purchase and download the official ASTM B580-79 PDF from the ASTM International website or through licensed distributors like the ANSI Webstore.
If you need help with a specific technical calculation related to these coatings or want to compare it to military standards (like MIL-A-8625), just let me know!
Standard Specification for Anodic Oxide Coatings on Aluminum
ASTM B580-79 is a critical international standard for the Anodizing of Aluminum, specifically covering requirements for electrolytically formed porous oxide coatings. Published by ASTM International, this specification ensures that aluminum parts achieve necessary levels of corrosion resistance, abrasion resistance, and aesthetic quality. Understanding ASTM B580-79
The primary purpose of ASTM B580-79 is to provide a uniform framework for manufacturers and purchasers to define the quality of anodic coatings. It excludes nonporous barrier layer coatings (like those used in electrical capacitors) and focuses on coatings where appearance and durability are paramount. Classification of Coatings
ASTM B580-79 identifies seven distinct types of anodic coatings based on their intended service environment and thickness: Coating Type Industry Description Minimum Thickness (μm) Typical Application Type A Engineering Hard Coat 50.0 (Typical) Aerospace, high-speed machinery Type B Architectural Class I Exterior facades, windows Type C Architectural Class II Interior architectural elements Type D Automotive — Exterior Automotive trim, wheel covers Type E Interior — Moderate Abrasion Appliances, consumer electronics Type F Interior — Limited Abrasion Lighting fixtures, decorative trim Type G Chromic Acid Specialized crevice or humid conditions Core Requirements and Workmanship
To comply with the standard, the anodic coating must meet several physical and visual benchmarks: ASTM International’s online platform, ASTM Compass, is the
Continuity: The coating must be smooth, uniform, and adherent to the base metal.
Surface Preparation: Base aluminum must undergo mechanical finishing and chemical pre-treatments before electrolysis.
Sealing: Most coatings (except some Type A hard coats) must be sealed in water or chemical solutions to maximize corrosion resistance.
Defect-Free: Parts must be free of powdery areas, burns, loose films, or significant discolorations. Why the ASTM B580-79 PDF is Essential
Engineering and manufacturing teams often seek the ASTM B580-79 PDF because it is incorporated by reference into various federal and industrial regulations. It serves as a legally binding document in many government contracts, particularly those involving the U.S. Department of Defense. Common Industry Use Cases
Aerospace & Defense: Utilizing Type A hard coats for wear resistance and electrical insulation in aircraft components.
Architecture: Specifying Type B and C coatings for high-traffic building storefronts and curtain walls.
Consumer Goods: Ensuring durability for appliances like refrigerators and high-performance cookware.
Automotive: Applying Type D coatings to exterior trim to withstand harsh environmental salts and debris. Accessing the Standard
While historical versions are sometimes available through public safety archives like Internet Archive, the most current, reapproved version (e.g., ASTM B580-79 R19) is typically purchased directly from the ASTM International Store or authorized resellers like Accuris Standards Store and the ANSI Webstore.
Standard Specification for Anodic Oxide Coatings on Aluminum
Title: Understanding ASTM B580-79: The Standard for Aluminum and Aluminum Alloy Anodizing
Introduction
Aluminum and its alloys are widely used in various industries due to their high strength-to-weight ratio, corrosion resistance, and conductivity. However, to further enhance their properties, surface treatments like anodizing are applied. Anodizing is an electrochemical process that converts the aluminum surface into a decorative, durable, and corrosion-resistant finish. ASTM B580-79 is a standard that specifically addresses the anodizing of aluminum and aluminum alloys. In this blog post, we'll dive into the details of ASTM B580-79 and its significance.
What is ASTM B580-79?
ASTM B580-79 is a standard published by the American Society for Testing and Materials (ASTM) that provides guidelines for the anodizing of aluminum and aluminum alloys. The standard was published in 1979 and is titled "Standard Specification for Anodic Oxide Coatings on Aluminum."
Scope of ASTM B580-79
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.
Types of Anodic Oxide Coatings
ASTM B580-79 defines several types of anodic oxide coatings:
Requirements and Testing Methods
The standard outlines specific requirements for anodic oxide coatings, including:
Significance of ASTM B580-79
The ASTM B580-79 standard plays a crucial role in ensuring the quality and performance of anodic oxide coatings on aluminum and aluminum alloys. By following this standard, manufacturers can:
Conclusion
ASTM B580-79 is a critical standard for the anodizing of aluminum and aluminum alloys. By understanding the requirements and testing methods outlined in this standard, manufacturers can produce high-quality anodic oxide coatings that meet the demands of various industries. If you're involved in the production or specification of anodized aluminum products, familiarizing yourself with ASTM B580-79 is essential to ensure the performance and durability of your products.
Download ASTM B580-79 PDF
If you're interested in learning more about ASTM B580-79, you can download the PDF version of the standard from the ASTM website or other authorized sources.
References
ASTM International. ASTM B580-79: Standard Specification for Anodic Oxide Coatings on Aluminum. ASTM, 1979. (Withdrawn) Steps: The search for "ASTM B580-79 pdf" is
