ASTM A727/A727M-14(2019)
(Specification)Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness
Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness
ABSTRACT
This specification covers forged carbon steel piping components intended primarily for service in pressure piping systems from a specific temperature range where inherent notch toughness is desired, but where notch toughness testing is not required. Included are forged or ring-rolled flanges, forged fittings, and valves made to specified dimensions. The steel shall be made by one or more of the following processes: open-hearth, basic-oxygen, or electric-furnace, and shall be fully killed, fine-grain practice. Following plastic working, the forgings shall be heat treated by normalizing, or normalizing and tempering, or quenching and tempering. The forgings shall be subjected to tension, hardness, and hydrostatic tests.
SCOPE
1.1 This specification2 covers forged carbon steel piping components intended primarily for service in pressure piping systems from −20 to +650 °F [−30 to +345 °C] where inherent notch toughness is desired, but where notch toughness testing is not required. Included are forged or ring-rolled flanges, forged fittings, and valves made to specified dimensions, or to dimensional standards such as the ASME and API specifications referenced in Section 2.
1.2 This specification is limited to forgings with maximum finished section thicknesses no larger than 2 in. [51 mm].
1.3 It shall be the responsibility of the purchaser to determine whether material meeting the requirements of this specification is satisfactory for the service application.
1.4 Supplementary requirements are provided for use when additional testing or inspection is desired. These shall apply only when specified by the purchaser in the order.
Note 1: There are no provisions for impact testing in this specification. When impact testing is required, refer to Specification A350/A350M.
1.5 This specification is expressed in both inch-pound units and in SI units. However, unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.
1.6 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A727/A727M −14 (Reapproved 2019)
Standard Specification for
Carbon Steel Forgings for Piping Components with Inherent
1
Notch Toughness
This standard is issued under the fixed designationA727/A727M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope ization established in the Decision on Principles for the
2 Development of International Standards, Guides and Recom-
1.1 This specification covers forged carbon steel piping
mendations issued by the World Trade Organization Technical
components intended primarily for service in pressure piping
Barriers to Trade (TBT) Committee.
systems from −20 to +650 °F [−30 to +345 °C] where inherent
notch toughness is desired, but where notch toughness testing
2. Referenced Documents
is not required. Included are forged or ring-rolled flanges,
2.1 In addition to those reference documents listed in
forged fittings, and valves made to specified dimensions, or to
Specification A961/A961M, the following list of standards
dimensional standards such as the ASME and API specifica-
apply to this specification.
tions referenced in Section 2.
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2.2 ASTM Standards:
1.2 This specification is limited to forgings with maximum
A350/A350MSpecificationforCarbonandLow-AlloySteel
finished section thicknesses no larger than 2 in. [51 mm].
Forgings, Requiring Notch Toughness Testing for Piping
1.3 It shall be the responsibility of the purchaser to deter-
Components
mine whether material meeting the requirements of this speci-
A788/A788MSpecification for Steel Forgings, General Re-
fication is satisfactory for the service application.
quirements
1.4 Supplementary requirements are provided for use when A961/A961MSpecification for Common Requirements for
additional testing or inspection is desired. These shall apply
Steel Flanges, Forged Fittings, Valves, and Parts for
only when specified by the purchaser in the order. Piping Applications
E59Practice for Sampling Steel and Iron for Determination
NOTE 1—There are no provisions for impact testing in this specifica-
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of Chemical Composition (Withdrawn 1996)
tion.Whenimpacttestingisrequired,refertoSpecificationA350/A350M.
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2.3 ASME Boiler and Pressure Vessel Codes:
1.5 This specification is expressed in both inch-pound units
Section II, Material Specifications, Part C
and in SI units. However, unless the order specifies the
SFA5.5Low-Alloy Steel Covered Arc-Welding Electrodes
applicable “M” specification designation (SI units), the mate-
B16.5 Steel Pipe Flanges and Flanged Fittings
rial shall be furnished to inch-pound units.
B16.10Face-to-Face and End-to-End Dimensions of Fer-
1.6 The values stated in either SI units or inch-pound units
rous Valves
are to be regarded separately as standard. Within the text, the
B16.11ForgedSteelFittings,Socket-WeldingandThreaded
SI units are shown in brackets. The values stated in each
B16.30Unfired Pressure Vessel Flange Dimensions
system may not be exact equivalents; therefore, each system 6
2.4 API Standards:
shall be used independently of the other. Combining values
600Steel Gate Valves with Flanged or Butt-Welding Ends
from the two systems may result in non-conformance with the
602 CompactDesignCarbonSteelGateValvesforRefinery
standard.
Use
1.7 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, Standards volume information, refer to the standard’s Document Summary page on
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee the ASTM website.
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A01.22onSteelForgingsandWroughtFittingsforPipingApplicationsandBolting The last approved version of this historical standard is referenced on
Materials for Piping and Special Purpose Applications. www.astm.org.
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Current edition approved Dec. 1, 2019. Published December 2019. Originally Available from American Society of Mechanical Engineers (ASME), ASME
approved in 1976. Last previous edition approved in 2014 as A727/A727M–14. International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
DOI: 10.1520/A0727_A0727M-14R19. www.asme.org.
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2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Petroleum Institute (API), 1220 L. St., NW,
cation SA
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