For quality control inspectors, anodizers, and design engineers, having the full text of the standard is essential. While summaries exist, the official PDF document contains the precise methodologies, classification tables, and sampling plans required for compliance.
It is important to note that this specification cover nonporous, barrier-layer anodic coatings typically used in electrical capacitors. Key Classifications: Types of Anodic Coatings
If the aluminum is dyed, the color must match a mutually agreed-upon reference sample between the buyer and the anodizer.
The anodic layer must be continuous, smooth, and free of visual defects like burning, blistering, or powdery surfaces.
⚠️ ASTM B580-79 has been withdrawn by ASTM International and is no longer maintained as an active standard. It is provided for archival and historical reference only. astm b580-79 pdf
If you tell me what you are designing for (e.g., car parts, outdoor signage, or indoor electronics), I can help you identify which type of ASTM B580-79 coating you likely need.
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.
Legitimate copies of the ASTM B580 PDF can be obtained from ASTM International, ANSI, Normadoc, Accuris, and other authorized resellers, with pricing typically ranging from USD 40 to €60 for a single‑user PDF. A legally viewable copy of the 1979 version is also available on the Internet Archive due to its incorporation by reference into federal law.
What is the (e.g., 6061, 7075) you are anodizing? Key Classifications: Types of Anodic Coatings If the
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.
The American National Standards Institute provides licensed copies of ASTM specifications.
This standard categorizes anodic coatings into based on their intended service environment and minimum film thickness:
This class is often used for architectural components, providing good durability and resistance to exterior atmospheric conditions. 4. Type D: Architectural Class (Heavy Exterior) It is provided for archival and historical reference only
The requirements for the aluminum substrate state that the basis metal shall be subjected to mechanical finishing operations, cleaning, and chemical or electrolytic pretreatments as necessary to yield anodic coatings with the final quality and appearance specified by the purchaser. Except where specifically excluded, anodized parts must be sealed in water or aqueous chemical solutions to close the porous structure and enhance corrosion resistance and stain resistance.
Moderate environmental exposure where aesthetics and bright finishes are critical.
The specification references companion standards (such as ASTM B244 or ASTM B487) to verify that the minimum thickness requirements for each Type are met.
A standard ASTM B580-79 PDF outlines more than just thickness; it establishes strict quality and testing benchmarks that a processor must fulfill to claim compliance: