ASTM-A988 › Historical Revision Information
Standard Specification for Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service
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Scope
1.1 This specification covers hot isostatically-pressed, powder metallurgy, stainless steel piping components for use in pressure systems. Included are flanges, fittings, valves, and similar parts made to specified dimensions or to dimensional standards, such as in ASME specification B16.5.
1.2 Several grades of martensitic, austenitic, age hardening, and austenitic-ferritic stainless steels are included in this specification.
1.3 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified individually by the purchaser in the order.
1.4 This specification is expressed in both inch-pound units and in SI units. Unless the order specifies the applicable "M" specification designation (SI units), however, the material shall be furnished to inch-pound units.
1.5 The values stated in either inch-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in parentheses. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
Keywords
age-hardening stainless steel; austenitic stainless steels; austenitic-ferritic stainless steel; gas-atomized powder; hot isostatically-pressed stainless steel parts; martensitic stainless steel; pipe fittings, steel; piping applications; pressure containing parts; stainless steel fittings; stainless steel flanges; steel valves; temperature service applications, elevated; temperature service applications, high; ICS Number Code 49.025.10 (Steels)
To find similar documents by ASTM Volume:
01.01 (Steel--Piping, Tubing, Fittings)
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Document Number
ASTM-A988/A988M-05
Revision Level
2005 EDITION
Status
Superseded
Modification Type
Revision
Publication Date
March 1, 2005
Document Type
Specification
Page Count
12 pages
Committee Number
A01.22