Designation: A 989 –98 (Reapproved 2002)
Standard Speci?cation for
Hot Isostatically-Pressed Alloy Steel Flanges, Fittings,
Valves, and Parts for High Temperature Service 1
This standard is issued under the ?xed designation A 989; the number immediately following the designation indicates the year of
original adoption or, in the caseof revision, the year of last revision. A number in parenthesesin