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ASTM A727/A727M-00

(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

SCOPE
1.1 This specification covers forged carbon steel piping components intended primarily for service in pressure piping systems from -20 to +650oF [-30 to +345oC] 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 ANSI 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 inch-pound units or SI units 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.

General Information

Status
Historical
Publication Date
09-Sep-2000
ICS
77.140.85 - Iron and steel forgings
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.22 - Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications
Current Stage
Ref Project

Relations

Replaced By
ASTM A727/A727M-02 - Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness
Effective Date
10-Sep-2002

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ASTM A727/A727M-00 - Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch ToughnessASTM A727/A727M-00 - Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness
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ASTM A727/A727M-00 - Standard Specification for Carbon Steel Forgings for Piping Components with Inherent Notch Toughness
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Standards Content (Sample)

Designation: A 727/A 727M – 00 An American National Standard
Standard Specification for
Carbon Steel Forgings for Piping Components with Inherent
1
Notch Toughness
This standard is issued under the fixed designation A 727/A 727M; 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.
1. Scope Specification A 961, the following list of standards apply to
2
this specification.
1.1 This specification covers forged carbon steel piping
2.2 ASTM Standards:
components intended primarily for service in pressure piping
A 788 Specification for Steel Forgings, General Require-
systems from −20 to +650°F [−30 to +345°C] where inherent
3
ments
notch toughness is desired, but where notch toughness testing
A 961 Specification for Common Requirements for Steel
is not required. Included are forged or ring-rolled flanges,
Flanges, Forged Fittings, Valves, and Parts for Piping
forged fittings, and valves made to specified dimensions, or to
4
Applications
dimensional standards such as the ANSI and API specifications
E 59 Practice for Sampling Steel and Iron for Determination
referenced in Section 2.
5
of Chemical Composition
1.2 This specification is limited to forgings with maximum
6
2.3 ASME Boiler and Pressure Vessel Codes:
finished section thicknesses no larger than 2 in. [51 mm].
Section II, Material Specifications, Part C
1.3 It shall be the responsibility of the purchaser to deter-
SFA 5.5 Low-Alloy Steel Covered Arc-Welding Electrodes
mine whether material meeting the requirements of this speci-
B 16.5 Steel Pipe Flanges and Flanged Fittings
fication is satisfactory for the service application.
B 16.10 Face-to-Face and End-to-End Dimensions of Fer-
1.4 Supplementary requirements are provided for use when
rous Valves
additional testing or inspection is desired. These shall apply
B 16.11 Forged Steel Fittings, Socket-Welding and
only when specified by the purchaser in the order.
Threaded
NOTE 1—There are no provisions for impact testing in this specifica-
B 16.30 Unfired Pressure Vessel Flange Dimensions
tion. When impact testing is required, refer to Specification A 350/
7
2.4 API Standards:
A 350M.
600 Steel Gate Valves with Flanged or Butt-Welding Ends
1.5 This specification is expressed in both inch-pound units
602 Compact Design Carbon Steel Gate Valves for Refin-
and in SI units. However, unless the order specifies the
ery Use
applicable “M” specification designation (SI units), the mate-
605 Large Diameter Carbon Steel Flanges
rial shall be furnished to inch-pound units.
1.6 The values stated in either inch-pound units or SI units 3. General Requirements and Ordering Information
are to be regarded separately as standard. Within the text, the
3.1 Product furnished to this specification shall conform to
SI units are shown in brackets. The values stated in each
the requirements of Specification A 961, including any supple-
system are not exact equivalents; therefore, each system must
mentary requirements that are indicated in the purchase order.
be used independently of the other. Combining values from the
Failure to comply with the requirements of Specification A 961
two systems may result in nonconformance with the specifi-
constitutes nonconformance with this specification. In case of
cation.
a conflict between the requirements of this specification and
Specification A 961, this specification shall prevail.
2. Referenced Documents
3.2 It is the purchaser’s responsibility to specify in the
2.1 In addition to those reference documents listed in
purchase order all ordering information necessary to purchase
the needed material. Examples of such information include but
are not limited to the following:
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
3
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 01.05.
4
A01.22 on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Annual Book of ASTM Standards, Vol 01.01.
5
Materials for Piping and Special Purpose Applications. Annual Book of ASTM Standards, Vol 03.05.
6
Current edition approved Sept. 10, 2000. Published November 2000. Originally Available from American Society of Mechanical Engineers, Three Park
published as A 727 – 76. Last previous edition A 727/A 727M – 97. Avenue, New York, NY 10016–5990.
2 7
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Petroleum Institute, 1801 K Street, N.W., Washing-
cation SA-727 in Section II of that Code.
ton, DC 20037.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 727/A 727M
TABLE 1 Chemical Requirements
3.2.1 Additional requirements (see 15.1 and
...

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This specification covers a group of common requirements that, unless covered by the individual product specification in another ASTM document, applies to steel forgings for general use. Materials shall be produced primarily by either electric-furnace, basic oxygen, vacuum-induction (VIM), or open-hearth melting process. The primary melting may incorporate separate degassing or refining and may be followed by secondary melting, using electro slag (ESR) or vacuum arc remelting (VAR). Steel shall be forged by any of these three classes based on forging temperature: cold-worked forging, hot-cold-worked forging, or hot-worked forging. After forging, specimens shall be allowed to cool prior to reheating for heat treatment. Details of heat and product analyses for the evaluation of chemical composition are thoroughly discussed. Tension and hardness tests shall be conducted to evaluate mechanical properties such as percentage of elongation and reduction of area. Repair welding shall not be allowed unless permitted by the product specification.
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ASTM Designation  
Title  
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Standard Specification for Carbon Steel Forgings, for General-Purpose Piping

ABSTRACT
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1.2 Two classes of material are covered, designated as Classes 60 and 70, respectively, and are classified in accordance with their mechanical properties as specified in 6.1.  
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SCOPE
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ABSTRACT
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Standard Specification for Steel Forgings, Carbon and Alloy, for General Industrial Use

ABSTRACT
This specification deals with the standard requirements for untreated and heat-treated carbon and alloy steel forgings for general industrial use. This specification covers six classes of carbon steels (Class A to F) and seven classes of alloy steels (Class G, H, and J to N). Materials shall be forged by hot mechanical work. Except for Class A, all forgings shall be heat treated, depending on class, by the following techniques: annealed, or normalized, or normalized and tempered (Classes B, C, D, and G); normalized and tempered, or double-normalized and tempered (Class E); quenched and tempered, or normalized, quenched, and tempered (Classes F); normalized and tempered (Class H); normalized and tempered, or normalized, quenched, and tempered (Class J); and normalized, quenched, and tempered (Classes K, L, M, and N). Steel specimens shall undergo heat and product analyses, and shall conform to required chemical compositions for manganese, phosphorus, and sulfur. Steel forgings shall also be tested on their conformance to the following tensile requirements: tensile strength, yield point, yield strength, elongation, reduction of area, and Brinell hardness.
SCOPE
1.1 This specification covers untreated and heat-treated carbon and alloy steel forgings for general industrial use. Other ASTM specifications for forgings are available for specific applications such as pressure vessels, railroad use, turbine generators, gearing, and others involving special temperature requirements.  
1.2 Hot-rolled or cold finished bars are not within the scope of this specification.  
1.3 Six classes of carbon steel and seven classes of alloy steel forgings are listed (see Section 7), which indicate their required heat treatments, as well as mechanical properties.  
1.4 Provision, with the suffix H for certification and marking, for the supply of forgings after hardness testing only.  
1.5 Supplementary requirements, including those in Specification A788/A788M, of an optional nature are provided. These shall apply only when specified by the purchaser.  
1.6 Appendix X1 lists the current classes corresponding to the various classes of Specifications A235, A237, and A243, which have been superseded by this specification.  
1.7 The values stated in either SI units or inch-pound units are to be regarded separately as standard; within the text and tables, the SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.8 Unless the order specifies the applicable “M” specification, the forgings shall be furnished to the inch-pound units.  
1.9 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.

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  • Technical specification
    10 pages
    English language
    sale 15% off