ASTM A279 remains a practical, commonly used specification for austenitic stainless tubing in many industrial applications. Choosing the right grade, insisting on proper testing and documentation, and matching the standard to applicable codes will help ensure reliable service and compliance.
ASTM A279 is not an active, valid standard. The historical standard ASTM A279-63, titled "Method of Total Immersion Corrosion Test of Stainless Steels," was officially withdrawn in 1945 and is no longer maintained by ASTM International. Claims that ASTM A279 is a specification for stainless steel bars are incorrect and should not be relied upon for engineering, manufacturing, or quality assurance purposes.
Specimens are cut into precise geometric shapes (often rectangular flats or cylindrical rods) with a known surface area. Astm A279 Pdf
Withdrawn. Users looking for total immersion protocols are now generally directed to Modern Replacements & Related Standards
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The specimen needed to be representative of the final product finish (e.g., pickled, polished).
The United States Nuclear Regulatory Commission has specifically investigated this matter and determined that references to ASTM A279/A279M as a material standard are incorrect. This finding was documented during the review of critical safety-related applications, lending significant weight to the conclusion that ASTM A279 is not a valid material specification for stainless steel bars. The historical standard ASTM A279-63, titled "Method of
If you are looking to purchase a current, similar standard, you can find the ASTM G31-72 on the official ASTM website.