Astm A279 Pdf

The ASTM A279 standard, officially titled "Method of Total Immersion Corrosion Test of Stainless Steels,"

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 It was issued on January 1, 1963 , consisted of 8 pages, and has since been marked as UNGÜLTIG (invalid/withdrawn). Additional records confirm that ASTM A279 was officially withdrawn in 1945 . Standards that have been withdrawn by ASTM International have been discontinued by their sponsoring committee and are no longer maintained or considered current for specification purposes.

It mimics applications like heat exchangers, piping systems, and storage tanks where materials are fully submerged. Astm A279 Pdf

ASTM A279 played a significant role in the historical landscape of stainless steel piping. By providing a specification for general service ferritic and austenitic tubing, it ensured that infrastructure ranging from chemical plants to architectural structures utilized materials with verified chemical and mechanical properties. While it is no longer an active standard, understanding its requirements is essential for engineers involved in the retrofitting, maintenance, or forensic analysis of systems manufactured prior to its withdrawal. For new applications, engineers should consult the current versions of ASTM A269 or ASTM A213.

410, 446, and others, often used for their magnetic properties and higher hardness. The ASTM A279 standard, officially titled "Method of

Assessing downstream refining components exposed to sour crude and acidic byproducts.

Defines the types of stainless steel covered and the limitations of the test. Additional records confirm that ASTM A279 was officially

8.2 : One impact test shall be performed on a specimen from each plate.

8.1 : One tension test shall be performed on a specimen from each plate.

When evaluating modern components marketed under this standard, they are typically cross-certified with active specifications. The technical matrix below outlines the typical properties of these commercial alloys: Chemical Composition Matrix (Common Commercial Grades) Chromium (Cr) % Nickel (Ni) % Molybdenum (Mo) % Carbon (C) % Max 18.00–20.00 8.00–11.00 TP304L 18.00–20.00 8.00–12.00 TP316 16.00–18.00 10.00–14.00 2.00–3.00 TP316L 16.00–18.00 10.00–14.00 2.00–3.00 TP321 17.00–19.00 9.00–12.00 Mechanical Properties (Annealed Condition) Tensile Strength : Yield Strength : Elongation (in 2 inches) : Hardness : Max (Rockwell B) 4. Key Active Standards to Cross-Reference

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.