Astm A279 | Pdf !link!

The general thinning of material across the surface.

The document outlines how bars must be thermally treated and finished to manage internal grain structures and surface integrity. Heat Treatment Guidelines

Although is no longer an active standard, its importance in the development of corrosion testing methodologies cannot be understated. It provided the framework for evaluating how stainless steel withstands immersion, laying the groundwork for modern corrosion testing like ASTM G31. For modern testing, engineers should always refer to the latest, active ASTM standards.

- Standard Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings

: Each tube must pass either a hydrostatic test or a non-destructive electric test to ensure there are no leaks or internal defects. 4. Dimensional Tolerances Astm A279 Pdf

: Results were calculated based on the corrosion rate, usually expressed in inches per month (ipm) or millimeters per year (mm/y), derived from the weight loss of the specimen. Why was it Withdrawn?

A glass flask or beaker suitable for containing the corrosive liquid.

1.2 The plates are furnished in the heat-treated condition, with or without additional processing.

Often confused with or cross-referenced with A279 in commercial catalogs; it covers stainless steel bars and shapes for use in boilers and pressure vessels ASTM A269: The general thinning of material across the surface

Are you looking to or are you sourcing materials ?

The primary objective of the test was to provide a standardized, reproducible method to evaluate how well a stainless steel alloy holds up against localized or uniform corrosion over time. Historical Context and Status

Used to test pitting and crevice corrosion resistance using ferric chloride.

: While obsolete for new industrial specifications, it is still frequently cited in academic research and historical data reports to describe specimen preparation (e.g., polishing with 1000-grit paper). 🧪 Technical Scope and Methodology It provided the framework for evaluating how stainless

The solution was chosen to represent the actual service environment, often involving specific acids, chlorides, or industrial process fluids.

A non-metallic, inert material (like glass or PTFE) was used to suspend the specimen, ensuring it did not touch the vessel walls or other specimens.

If you're looking to access the ASTM A279 PDF, here's a brief review:

Official records indicate that a standard designated as existed in the past. This standard was titled "Method of Total Immersion Corrosion Test of Stainless Steels". It was issued on January 1, 1963 , consisted of 8 pages, and has since been marked as UNGÜLTIG (invalid/withdrawn). Additional records confirm that ASTM A279 was officially withdrawn in 1945 . Standards that have been withdrawn by ASTM International have been discontinued by their sponsoring committee and are no longer maintained or considered current for specification purposes.