ASTM A860/A860M-10
(Specification)Standard Specification for Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
Standard Specification for Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
ABSTRACT
This specification covers wrought high-strength low-alloy butt-welding steel fittings of seamless and electric fusion-welded construction for applications in high-pressure gas and oil transmission and distribution systems. Starting materials shall consist of plate, sheet, forgings, forging quality bar, and seamless or fusion-welded tubular products with filler metal added. Materials shall be heat treated by normalizing, quenching, and tempering or stress relieving. Specimens shall conform to required values of chemical composition and mechanical properties, namely: yield strength, tensile strength, elongation, notch toughness, and hardness. This specification does not require hydrostatic testing.
SCOPE
1.1 This specification covers wrought high-strength ferritic steel butt-welding fittings of seamless and electric fusion-welded construction covered by the latest revisions of ASME B16.9 and MSS-SP-75. Butt-welding fittings differing from these ASME and MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A 960/A 960M. These fittings are for use in high-pressure gas and oil transmission and distribution systems.
1.2 Optional supplementary requirements are provided for fittings when a greater degree of examination is desired. One or more of the supplementary requirements may be specified in the order.
1.3 This specification does not cover cast-welding fittings or fittings machined from castings.
1.4 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. Unless the order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.
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Designation:A860/A860M −10
StandardSpecification for
1
Wrought High-Strength Ferritic Steel Butt-Welding Fittings
This standard is issued under the fixed designationA860/A860M; 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.
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1. Scope* 2.2 ASME Standards:
B16.9Steel Butt-Welding Fittings
1.1 This specification covers wrought high-strength ferritic
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2.3 ASME Boiler and Pressure Vessel Code:
steel butt-welding fittings of seamless and electric fusion-
Section VNondestructive Examination
welded construction covered by the latest revisions of ASME
Section VIIIDivision 1, Pressure Vessels
B16.9 and MSS-SP-75. Butt-welding fittings differing from
Section IXWelding and Brazing Qualifications
these ASME and MSS standards shall be furnished in accor-
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2.4 MSS Standards:
dance with Supplementary Requirement S58 of Specification
MSS SP-25 The Standard Marking System of Valves,
A960/A960M. These fittings are for use in high-pressure gas
Fittings, Flanges and Unions
and oil transmission and distribution systems.
MSS-SP-75 Specification for High Test Wrought Butt-
1.2 Optional supplementary requirements are provided for
Welding Fittings
fittingswhenagreaterdegreeofexaminationisdesired.Oneor
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2.5 American Society of Nondestructive Testing:
more of the supplementary requirements may be specified in
SNT-TC-1A Recommended Practice for Nondestructive
the order.
Testing Personnel Qualification and Certification
1.3 Thisspecificationdoesnotcovercast-weldingfittingsor
fittings machined from castings. 3. Ordering Information
1.4 The values stated in either SI units or inch-pound units 3.1 In addition to the requirements of Specification A960/
A960M, the following ordering information applies:
are to be regarded separately as standard. Within the text, the
SI units are shown in brackets. The values stated in each 3.1.1 Grade Symbol,
3.1.2 Requirements for certification of test report.
system may not be exact equivalents; therefore, each system
shall be used independently of the other. Combining values
4. General Requirements
from the two systems may result in non-conformance with the
standard. Unless the order specifies the applicable “M” speci-
4.1 Product furnished to this specification shall conform to
fication designation (SI units), the material shall be furnished
the requirements of Specification A960/A960M, including any
to inch-pound units.
supplementary requirements that are indicated in the purchase
order. Failure to comply with the general requirements of
2. Referenced Documents
Specification A960/A960M constitutes nonconformance with
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this specification. In case of conflict between the requirements
2.1 ASTM Standards:
of this specification and Specification A960/A960M, this
A751Test Methods, Practices, and Terminology for Chemi-
specification shall prevail.
cal Analysis of Steel Products
A960/A960MSpecification for Common Requirements for
5. Materials and Manufacture
Wrought Steel Piping Fittings
5.1 The material for fittings shall be fully killed fine-grain
material made by a melting process that is intended to produce
rounded, well dispersed, fine sulphide inclusions, that promote
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This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloysand is the direct responsibility of Subcommittee
A01.22onSteelForgingsandWroughtFittingsforPipingApplicationsandBolting
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Materials for Piping and Special Purpose Applications. Available from American Society of Mechanical Engineers (ASME), ASME
Current edition approved Nov. 1, 2010. Published December 2010. Originally International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
approved in 1986. Last previous edition approved in 2009 as A860/A860M–09. www.asme.org.
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DOI: 10.1520/A0860_A0860M-10. AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM hq.com.
5
Standards volume information, refer to the standard’s Document Summary page on AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
the ASTM website. 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
*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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A860/A860M−10
good notch toughness, assists in the resistance to hydrog
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This document is not anASTM standard and is intended only to provide the user of anASTM 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:A860/A860M–09 Designation: A860/A860M – 10
Standard Specification for
1
Wrought High-Strength Ferritic Steel Butt-Welding Fittings
This standard is issued under the fixed designationA860/A860M; 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*
1.1 This specification covers wrought high-strength ferritic steel butt-welding fittings of seamless and electric fusion-welded
constructioncoveredbythelatestrevisionsofASMEB16.9andMSS-SP-75.Butt-weldingfittingsdifferingfromtheseASMEand
MSS standards shall be furnished in accordance with Supplementary Requirement S58 of Specification A960/A960M. These
fittings are for use in high-pressure gas and oil transmission and distribution systems.
1.2 Optionalsupplementaryrequirementsareprovidedforfittingswhenagreaterdegreeofexaminationisdesired.Oneormore
of the supplementary requirements may be specified in the order.
1.3 This specification does not cover cast-welding fittings or fittings machined from castings.
1.4 ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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. Unless the
order specifies the applicable “M” specification designation (SI units), the material shall be furnished to inch-pound units.
2. Referenced Documents
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2.1 ASTM Standards: A370Test Methods and Definitions for Mechanical Testing of Steel Products
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A960/A960M Specification for Common Requirements for Wrought Steel Piping Fittings
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2.2 ASME Standards:
B16.9 Steel Butt-Welding Fittings
3
2.3 ASME Boiler and Pressure Vessel Code:
Section V Nondestructive Examination
Section VIII Division 1, Pressure Vessels
Section IX Welding and Brazing Qualifications
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2.4 MSS Standards:
MSS SP-25 The Standard Marking System of Valves, Fittings, Flanges and Unions
MSS-SP-75 Specification for High Test Wrought Butt-Welding Fittings
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2.5 American Society of Nondestructive Testing:
SNT-TC-1A Recommended Practice for Nondestructive Testing Personnel Qualification and Certification
3. Ordering Information
3.1 In addition to the requirements of Specification A960/A960M, the following ordering information applies:
3.1.1 Grade Symbol,
3.1.2 Requirements for certification of test report.
4. General Requirements
4.1 Product furnished to this specification shall conform to the requirements of Specification A960/A960M, including any
supplementary requirements that are indicated in the purchase order. Failure to comply with the general requirements of
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ThisspecificationisunderthejurisdictionofASTMCommitteeA01onSteel,StainlessSteelandRelatedAlloysandisthedirectresponsibilityofSubcommitteeA01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved MayNov. 1, 2009.2010. Published May 2009.December 2010. Originally approved in 1986. Last previous edition approved in 20082009 as
A860/A860M–08.A860/A860M–09. DOI: 10.1520/A0860_A0860M-109.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
www.asme.org.
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Available from Manufacturers Standardization Society of the Valve and Fittings Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-hq.com.
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Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
*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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A860/A860M – 10
SpecificationA960/A960Mconstitutesnonconformancewiththisspecification.Incaseofconflictbetweentherequirementsoft
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