ASTM A105/A105M-03
(Specification)Standard Specification for Carbon Steel Forgings for Piping Applications
Standard Specification for Carbon Steel Forgings for Piping Applications
SCOPE
1.1 This specification covers forged carbon steel piping components for ambient- and higher-temperature service in pressure systems. Included are flanges, fittings, valves, and similar parts ordered either to dimensions specified by the purchaser or to dimensional standards such as the ASME and API specifications referenced in Section . Forgings made to this specification are limited to a maximum weight of 10000 lb [4540 kg]. Larger forgings may be ordered to Specification A 266/A 266M. Tubesheets and hollow cylindrical forgings for pressure vessel shells are not included within the scope of this specification. Although this specification covers some piping components machined from rolled bar and seamless tubular products (see ), it does not cover raw material produced in these product forms.
1.2 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.
1.3 Specification A 266/A 266M covers other steel forgings and Specifications A 675 and A 696 cover other steel bars.
1.4 This specification is expressed in both inch-pound units and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.
1.5 The values stated in either inch-pound units or SI are to be regarded separately as standard. Within the text, the SI units are shown in brackets. 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.
Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as "nominal diameter," "size," and "nominal size."
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Standards Content (Sample)
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Endorsed by
Designation: A 105/A 105M – 03 Manufacturers Standardization Society
of the Valve and Fittings Industry
Used in USDOE-NE Standards
Standard Specification for
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Carbon Steel Forgings for Piping Applications
This standard is issued under the fixed designationA 105/A 105M; 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 (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
1. Scope*
been substituted in this standard for such traditional terms as “nominal
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1.1 This specification covers forged carbon steel piping
diameter,” “size,” and “nominal size.”
components for ambient- and higher-temperature service in
pressure systems. Included are flanges, fittings, valves, and 2. Referenced Documents
similar parts ordered either to dimensions specified by the
2.1 In addition to those reference documents listed in
purchaser or to dimensional standards such as the MSS,
Specification A 961, the following list of standards apply to
ASME, and API specifications referenced in Section 2. Forg-
this specification:
ings made to this specification are limited to a maximum 3
2.2 ASTM Standards:
weightof10 000lb[4540kg].Largerforgingsmaybeordered
A 266/A 266M Specification for Carbon Steel Forgings for
to Specification A 266/A 266M. Tubesheets and hollow cylin-
Pressure Vessel Components
drical forgings for pressure vessel shells are not included
A 370 Test Methods and Definitions for MechanicalTesting
within the scope of this specification. Although this specifica-
of Steel Products
tion covers some piping components machined from rolled bar
A 675/A 675M Specification for Steel Bars, Carbon, Hot-
and seamless tubular products (see 4.2), it does not cover raw
Wrought, Special Quality, Mechanical Properties
material produced in these product forms.
A 696 SpecificationforSteelBars,Carbon,Hot-Wroughtor
1.2 Supplementary requirements are provided for use when
Cold-Finished, Special Quality, for Pressure Piping Com-
additional testing or inspection is desired. These shall apply
ponents
only when specified individually by the purchaser in the order.
A 788 Specification for Steel Forgings, General Require-
1.3 SpecificationA 266/A 266M covers other steel forgings
ments
and Specifications A 675 and A 696 cover other steel bars.
A 961 Specification for Common Requirements for Steel
1.4 This specification is expressed in both inch-pound units
Flanges, Forged Fittings, Valves, and Parts for Piping
and SI units. However, unless the order specifies the applicable
Applications
“M” specification designation (SI units), the material shall be
2.3 MSS Standards:
furnished to inch-pound units. 4
SP 44 Standard for Steel Pipe Line Flanges
1.5 The values stated in either inch-pound units or SI are to
2.4 ASME Standards:
be regarded separately as standard.Within the text, the SI units
B16.5 Dimensional Standards for Steel Pipe Flanges and
are shown in brackets.The values stated in each system are not 5
Flanged Fittings
exact equivalents; therefore, each system must be used inde- 5
B16.9 Wrought Steel Buttwelding Fittings
pendentlyoftheother.Combiningvaluesfromthetwosystems
B16.10 Face-to-Face and End-to-End Dimensions of Fer-
may result in nonconformance with the specification. 5
rous Valves
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting Standards volume information, refer to the standard’s Document Summary page on
Materials for Piping and Special Purpose Applications. the ASTM website.
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Current edition approved Oct. 1, 2003. Published November 2003. Originally AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
approved in 1926. Last previous edition approved in 2002 as A 105/A 105M – 02. Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602.
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Society of Mechanical Engineers (ASME), ASME
cation SA-105 in Section II of that Code. International Headquarters, Three Park Ave., New York, NY 10016-5990.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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