ASTM A765/A765M-07
(Specification)Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
Standard Specification for Carbon Steel and Low-Alloy Steel Pressure-Vessel-Component Forgings with Mandatory Toughness Requirements
ABSTRACT
This specification covers heat-treated carbon steel and alloy steel forgings with mandatory toughness requirements. These forgings include tube sheets, covers, channel barrels, integral forged channels, rings, nozzles, flanges, and similar parts. The maximum thickness of forgings produced to this specification is limited only by the capacity of the selected grade to respond to any heat treatment specified and to meet the specified mechanical tests, including impact tests at the specified temperature. Heat treatment shall consist of one of the following treatment options: normalize and temper; double normalize, wherein the second austenitizing temperature is at the same or lower temperature than the first, followed by tempering; quench and temper, with the option of adding a preliminary normalize before austenitizing for quenching in a suitable liquid medium. The forgings shall be subjected to tension and Charpy V-notch impact tests.
SCOPE
1.1 This specification covers heat-treated carbon steel and alloy steel forgings with mandatory toughness requirements. These forgings are intended for pressure vessels, feedwater heaters, and similar uses.
1.2 These forgings include tube sheets, covers, channel barrels, integral forged channels, rings, nozzles, flanges, and similar parts.
1.3 All grades are considered weldable under proper conditions.
1.4 The maximum thickness of forgings produced to this specification is limited only by the capacity of the selected grade to respond to any heat treatment specified and to meet the specified mechanical tests, including impact tests at the specified temperature.
1.5 Material supplied to this specification shall conform to the requirements of Specification A 788/A 788M, which outlines additional ordering information, manufacturing requirements, testing and retesting methods and procedures, marking, certification, product analysis variations, and additional supplementary requirements.
1.6 If the requirements of this specification are in conflict with the requirements of Specification A 788/A 788M, the requirements of this specification shall prevail.
1.7 The values stated in either inch-pound units or SI [metric] units are to be regarded separately as the standard; within the text and tables, 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.
1.8 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.
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Designation: A765/A765M – 07
Standard Specification for
Carbon Steel and Low-Alloy Steel Pressure-Vessel-
Component Forgings with Mandatory Toughness
1
Requirements
This standard is issued under the fixed designationA765/A765M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2 3
1.1 This specification covers heat-treated carbon steel and 2.1 ASTM Standards:
alloy steel forgings with mandatory toughness requirements. A275/A275M Practice for Magnetic Particle Examination
These forgings are intended for pressure vessels, feedwater of Steel Forgings
heaters, and similar uses. A370 Test Methods and Definitions for Mechanical Testing
1.2 These forgings include tube sheets, covers, channel of Steel Products
barrels, integral forged channels, rings, nozzles, flanges, and A388/A388M Practice for Ultrasonic Examination of Steel
similar parts. Forgings
1.3 All grades are considered weldable under proper condi- A788/A788M Specification for Steel Forgings, General Re-
tions. quirements
1.4 The maximum thickness of forgings produced to this E112 Test Methods for Determining Average Grain Size
specification is limited only by the capacity of the selected E165 PracticeforLiquidPenetrantExaminationforGeneral
gradetorespondtoanyheattreatmentspecifiedandtomeetthe Industry
4
specified mechanical tests, including impact tests at the speci- 2.2 ASME Standards:
fied temperature. ASME Boiler and Pressure Vessel Code
1.5 Material supplied to this specification shall conform to
3. Ordering Information
the requirements of Specification A788/A788M, which out-
3.1 In addition to the ordering information requirements of
lines additional ordering information, manufacturing require-
ments, testing and retesting methods and procedures, marking, Specification A788/A788M, a detailed sketch or written de-
scription of the forging and the method of selecting the test
certification,productanalysisvariations,andadditionalsupple-
mentary requirements. location (see 6.2) should be supplied to the producer, when
appropriate areas of significant in-service loading of the
1.6 If the requirements of this specification are in conflict
with the requirements of Specification A788/A788M, the forging need to be designated.
3.2 The required impact test temperature should be supplied
requirements of this specification shall prevail.
1.7 The values stated in either inch-pound units or SI if different than the temperature listed inTable 3, otherwise the
impacttestshallbeconductedatthetemperaturelistedinTable
[metric] units are to be regarded separately as the standard;
within the text and tables, the SI units are shown in brackets. 3 for the chosen Grade.
3.3 IfahubbedtubesheetistobesuppliedforASMEBoiler
The values stated in each system are not exact equivalents;
and Pressure Code Application Supplementary Requirement
therefore,eachsystemmustbeusedindependentlyoftheother.
Combining values from the two systems may result in noncon- S12 of Specification A788/A788M shall be specified.
3.4 If steel is required to be vacuum degassed, Supplemen-
formance with the specification.
1.8 Unless the order specifies the applicable “M” specifica- tary Requirement S8 of Specification A788/A788M should be
specified.
tion designation, the material shall be furnished to the inch-
pound units.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
3
A01.06 on Steel Forgings and Billets. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2007. Published October 2007. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1979. Last previous edition approved in 2004 as A765/A765M – 04. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0765_A0765M-07. the ASTM website.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from American Society of Mechanical Engineers, 345 E. 47th St.,
cation SA–765/SA–765M in Section II of that code. New York, NY 10017.
*ASummary 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.
1
---------------------- Page: 1 ----------------------
A765/A765M – 07
TABLE 1 Chemical Requirements
the test temperature is at least as low as the intended service
Composition, % temperatures and the provided impact energy requirements of
Table 3 are met
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A765/A765M–04 Designation: A 765/A 765M – 07
Standard Specification for
Carbon Steel and Low-Alloy Steel Pressure-Vessel-
Component Forgings with Mandatory Toughness
1
Requirements
This standard is issued under the fixed designationA765/A765M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
2
1.1 This specification covers heat-treated carbon steel and alloy steel forgings with mandatory toughness requirements. These
forgings are intended for pressure vessels, feedwater heaters, and similar uses.
1.2 These forgings include tube sheets, covers, channel barrels, integral forged channels, rings, nozzles, flanges, and similar
parts.
1.3 All grades are considered weldable under proper conditions.
1.4 The maximum thickness of forgings produced to this specification is limited only by the capacity of the selected grade to
respond to any heat treatment specified and to meet the specified mechanical tests, including impact tests at the specified
temperature.
1.5 Material supplied to this specification shall conform to the requirements of Specification A 788/A 788M, which outlines
additional ordering information, manufacturing requirements, testing and retesting methods and procedures, marking, certification,
product analysis variations, and additional supplementary requirements.
1.6 If the requirements of this specification are in conflict with the requirements of Specification A 788/A 788M, the
requirements of this specification shall prevail.
1.7 The values stated in either inch-pound units or SI [metric] units are to be regarded separately as the standard; within the
text and tables, 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.
1.8 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound
units.
2. Referenced Documents
3
2.1 ASTM Standards:
A 275/A 275M Test Method Practice for Magnetic Particle Examination of Steel Forgings
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 388/A 388M Practice for Ultrasonic Examination of Heavy Steel Forgings
A788 788/A 788M Specification for Steel Forgings, General Requirements
E 112 Test Methods for Determining Average Grain Size
E 165 Test Method for Liquid Penetrant Examination
2.2 ASME Standards:
4
Boiler and Pressure Vessel Code
ASME Boiler and Pressure Vessel Code
3. Ordering Information
3.1 InadditiontotheorderinginformationrequirementsofSpecificationA 788/A 788M,adetailedsketchorwrittendescription
of the forging and the method of selecting the test location (see 6.2) should be supplied to the producer, when appropriate areas
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel,Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.06 on Steel Forgings and Billets.
Current edition approved JulySept. 1, 2004.2007. Published August 2004.October 2007. Originally approved in 1979. Last previous edition approved in 20012004 as
A 765/A 765M – 014.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA–765/SA–765M in Section II of that code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from American Society of Mechanical Engineers, 345 E. 47th St., New York, NY 10017.
*ASummary 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.
1
---------------------- Page: 1 ----------------------
A 765/A 765M – 07
of significant in-service loading of the forging need to be designated.
3.2 The required impact test temperature should be supplied if different than the temperature listed in Table 3, otherwise the
impact test shall be conducted at the temperature listed in Table 3 for the chosen Grade.
3.3 If a hubbed tube sheet is to be supplied forASME Boiler and Pressure CodeApplication Supplementary Requ
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:A 765/A 765M–04 Designation: A765/A765M – 07
Standard Specification for
Carbon Steel and Low-Alloy Steel Pressure-Vessel-
Component Forgings with Mandatory Toughness
1
Requirements
This standard is issued under the fixed designationA765/A765M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
2
1.1 This specification covers heat-treated carbon steel and alloy steel forgings with mandatory toughness requirements. These
forgings are intended for pressure vessels, feedwater heaters, and similar uses.
1.2 These forgings include tube sheets, covers, channel barrels, integral forged channels, rings, nozzles, flanges, and similar
parts.
1.3 All grades are considered weldable under proper conditions.
1.4 The maximum thickness of forgings produced to this specification is limited only by the capacity of the selected grade to
respond to any heat treatment specified and to meet the specified mechanical tests, including impact tests at the specified
temperature.
1.5 Material supplied to this specification shall conform to the requirements of SpecificationA788A788A788/A788M, which
outlines additional ordering information, manufacturing requirements, testing and retesting methods and procedures, marking,
certification, product analysis variations, and additional supplementary requirements.
1.6 If the requirements of this specification are in conflict with the requirements of SpecificationA788A788A788/A788M, the
requirements of this specification shall prevail.
1.7 The values stated in either inch-pound units or SI [metric] units are to be regarded separately as the standard; within the
text and tables, 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.
1.8 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound
units.
2. Referenced Documents
3
2.1 ASTM Standards:
A275/A275M Test MethodPractice for Magnetic Particle Examination of Steel Forgings
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A388/A388M Practice for Ultrasonic Examination of Heavy Steel Forgings
A788788/A788M Specification for Steel Forgings, General Requirements
E112 Test Methods for Determining Average Grain Size
E165 Test Method for Liquid Penetrant Examination Practice for Liquid Penetrant Examination for General Industry
2.2 ASME Standards:
4
Boiler and Pressure Vessel Code
ASME Boiler and Pressure Vessel Code
3. Ordering Information
3.1 In addition to the ordering information requirements of SpecificationA788A788A788/A788M, a detailed sketch or written
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel,Steel and RelatedAlloys and is the direct responsibility of Subcommittee
A01.06 on Steel Forgings and Billets.
Current edition approved July 1, 2004. Published August 2004. Originally approved in 1979. Last previous edition approved in 2001 as A 765/A 765M–01.
Current edition approved Sept. 1, 2007. Published October 2007. Originally approved in 1979. Last previous edition approved in 2004 as A765/A765M – 04. DOI:
10.1520/A0765_A0765M-07.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA–765/SA–765M in Section II of that code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. ForAnnualBookofASTMStandards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from American Society of Mechanical Engineers, 345 E. 47th St., New York, NY 10017.
*ASummary 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.
1
---------------------- Page: 1 ----------------------
A765/A765M – 07
description of the forging and the method of selecting the test location (see 6.2) should be supplied to the producer, when
appropriate areas of significant in-service loading of the forging need to be designated.
3.2 The required impact test temperature should be supplied if different than the temperatu
...
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