This standard is issued under the fixed designation A 452M; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon ( ュ) indicates an editorial change since the last revision or reapproval.

1.Scope

1.1 This specification covers autenitic steel pipe made by the centrifugal casting process, subsequently cold worked, and given a recrystallizing anneal. Pipe ordered to this specification is suitable for use in high-pressure, high-temperature services and shall be suitable for bending and other forming operations and for fusion welding. Selection will depend in design, service conditions, mechanical properties, and high-temperature characteristics.
1.2 Several grades of austenitic steels are covered as given in Tale 1.
1.3 Optional supplementary requirements (S1 through S8) are provided which call for additional tests and, when desired, shall be so stated in the purchase order together with the number of such tests required.
1.4 The values stated in inch-pound units are to be regarded as the standard.