Work Item
ASTM WK88602
Revision of A182/A182M-23 Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
Rationale
The definition of “ferrous” as opposed to “non-ferrous" was revised many years ago to read “metals and alloys that contain iron as the principal component” as opposed to alloys containing 51% iron. A group of austenitic alloys know as the N08xxx alloys had originally been given Nickel Alloy UNS numbers and covered by various B02.07 Specifications. These alloys are to be moved into the corresponding A01 specifications. This process was started with priority given to alloys that were referenced in the ASME Boiler and Pressure Vessel Code. With that done, this item is one of a group of items to relocate the rest of the N08xxx grades into A01 specifications. Once this activity is completed, attention will be given to eliminating duplication by correcting the B02.07 specifications to remove the alloys, or delete the specifications as warranted.
This item is to add UNS Grades N08031 and N08320 to A182
Work Item Status
Date Initiated: 11-15-2023
Technical Contact: Annemarie Appleton
Item: 000
Ballot:
Status: