Standard Specification for
Austenitic Ductile Iron Castings1
This fashionable is issued under the fixed designation a 439; the quantity straight away following the designation suggests the year of
original adoption or, within the case of revision, the year of last revision. a number of in parentheses indicates the year of closing reapproval. a
superscript epsilon (e) suggests an article trade since the ultimate revision or reapproval
click below to download Astm A 439 – 83 (Reapproved 1999) pdf free
