Designation: A 193/A 193M –04a
Standard Speci?cation for
Alloy-Steel and Stainless Steel Bolting Materials for High-
Temperature Service 1
This standard is issuedunder the ?xed designationA 193/A 193M; 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 parenthesesindicates the year of last reap