1. Scope
1.1 This specification covers hot isostatically-pressed, powder metallurgy, alloy 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 alloy 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.
The following safety hazards caveat pertains only to test methods portions, 8.1, 8.2, and 9.5-9.7 of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
A275/A275M Practice for Magnetic Particle Examination of Steel Forgings
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
B311 Test Method for Density of Powder Metallurgy (PM) Materials Containing Less Than Two Percent Porosity
E165 Practice for Liquid Penetrant Examination for General Industry
E340 Test Method for Macroetching Metals and Alloys
E606 Practice for Strain-Controlled Fatigue Testing
MSS Standard
SP25 Standard Marking System for Valves, Fittings, Flanges, and Unions
ASME Specifications and Boiler and Pressure Vessel Codes
B16.5 Dimensional Standards for Steel Pipe Flanges and Flanged Fittings
ASME Section IX Welding Qualifications
SFA-5.5 Specification for Low-Alloy Steel Covered Arc-Welding Electrodes
Keywords
alloy steel; chromium-alloy steel; chromium-molybdenum steel; gas-atomized powder; hot isostatically-pressed alloy steel parts; piping applications; pipe fittings, steel; pressure containing parts; steel flanges; steel valves; temperature service applications, elevated; temperature service applications, high; Alloy steel flanges--specifications; Chromium alloy steel--specifications; Chromium-molybdenum steel--specifications; Elevated temperature service applications--steel; Gas atomized powder; High-temperature service applications; Isostatically pressed steel; Pressure-containing parts; Steel fittings--specifications; Steel flanges--specifications; Steel valves--specifications;
ICS Code
ICS Number Code 49.025.10 (Steels)
DOI: 10.1520/A0989_A0989M-07
ASTM International is a member of CrossRef.
Citing ASTM Standards
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