An inquiry from a user questioned the validity of the nominal compositions in the Grade column of Table 2 and pointed out that many of the entries did not reflect the actual required compositions in other columns in the table. The A01.22.03 section recommended that, to eliminate the confusion, the Grade column should be deleted and the heading of the Identification Symbol column should be changed to: Grade/Identification Symbol. The section also determined that it was important to be consistent in the use of F-numbers, rather than UNS numbers in the Grade columns of Tables 1, 2, 3, and 4, so the listings for S31727 and S32053 are being corrected to be the next available F-numbers.
Keywordsaustenitic stainless steel; chromium alloy steel; chromium-molybdenum steel; ferritic/austenitic stainless steel; ferritic stainless steel; martensitic stainless steel; nickel alloy steel; notch toughness requirements; pipe fittings; piping applications; pressure containing parts; stainless steel fittings; stainless steel forgings; steel; steel flanges; steel forgings, alloy; steel valves; temperature service applications, elevated; temperature service applications, high; wrought material;
Ballot Item Approved