ASTM A960/A960M-19
(Specification)Standard Specification for Common Requirements for Wrought Steel Piping Fittings
Standard Specification for Common Requirements for Wrought Steel Piping Fittings
ABSTRACT
This specification covers the common requirements that shall apply to wrought steel piping fittings. The material shall consist of forgings, bars, plates, and seamless or welded tubular products. Ferritic steels shall be fully killed. Hollow cylindrically shaped parts up to and including NPS 4 may be machined from bar or seamless tubular material. Elbows, return bends, tees, and header tees shall not be machined directly from bar stock. The following procedures shall be done for heat treatment: full annealing, solution annealing, isothermal annealing, normalizing, tempering and post-weld heat treatment, stress relieving, and quench and temper. Chemical analysis, heat analysis, and product analysis shall also be done. The chemical requirements shall conform to the required compositions of carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, vanadium, columbium, titanium, aluminum, lead, and copper. The following tests shall be done for the mechanical requirements: tension, hardness, impact, and hydrostatic tests.
SCOPE
1.1 This specification covers a group of common requirements that shall apply to wrought steel piping fittings covered in any of the following individual product specifications or any other ASTM specification that invokes this specification or portions thereof:
Title of Specification
ASTM
Designation
Specification for Piping Fittings of Wrought
Carbon Steel and Alloy Steel for Moderate and
High Temperature Service
A234/A234M
Specification for Wrought Austenitic Stainless
Steel Piping Fittings
A403/A403M
Specification for Piping Fittings of Wrought Carbon
Steel and Alloy Steel for Low-Temperature Service
A420/A420M
Specification for Wrought-Carbon Steel Butt-Welding
Piping Fittings with Improved Notch Toughness
A758/A758M
Specification for As-Welded Wrought Austenitic
Stainless Steel Fittings for General Corrosive
Service at Low and Moderate Temperatures
A774/A774M
Specification for Wrought Ferritic, Ferritic/Austenitic,
and Martensitic Stainless Steel Piping Fittings
A815/A815M
Specification for Heat-Treated Carbon Steel
Fittings for Low-Temperature and Corrosive Service
A858/A858M
Specification for Wrought High-Strength
Ferritic Steel Butt-Welding Fittings
A860/A860M
1.2 In case of conflict between a requirement of the individual product specification and a requirement of this general requirement specification, the requirements of the individual product specification shall prevail over those of this specification.
1.3 By mutual agreement between the purchaser and the supplier, additional requirements may be specified (See 4.1.8). The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon by the purchaser and supplier.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text and the tables, 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 specification. The inch-pound units shall apply unless the “M” designation [SI] of the product specification is specified in the order.
1.5 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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Designation:A960/A960M −19
Standard Specification for
1
Common Requirements for Wrought Steel Piping Fittings
This standard is issued under the fixed designationA960/A960M; 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* in each system may not be exact equivalents; therefore each
system shall be used independently of the other. Combining
1.1 This specification covers a group of common require-
values from the two systems may result in non-conformance
ments that shall apply to wrought steel piping fittings covered
with the specification. The inch-pound units shall apply unless
in any of the following individual product specifications or any
the “M” designation [SI] of the product specification is
other ASTM specification that invokes this specification or
specified in the order.
portions thereof:
1.5 This international standard was developed in accor-
Title of Specification ASTM
Designation
dance with internationally recognized principles on standard-
Specification for Piping Fittings of Wrought A234/A234M
ization established in the Decision on Principles for the
Carbon Steel and Alloy Steel for Moderate and
Development of International Standards, Guides and Recom-
High Temperature Service
Specification for Wrought Austenitic Stainless A403/A403M
mendations issued by the World Trade Organization Technical
Steel Piping Fittings
Barriers to Trade (TBT) Committee.
Specification for Piping Fittings of Wrought Carbon A420/A420M
Steel and Alloy Steel for Low-Temperature Service
2. Referenced Documents
Specification for Wrought-Carbon Steel Butt-Welding A758/A758M
Piping Fittings with Improved Notch Toughness
2
2.1 ASTM Standards:
Specification for As-Welded Wrought Austenitic A774/A774M
Stainless Steel Fittings for General Corrosive
A29/A29M SpecificationforGeneralRequirementsforSteel
Service at Low and Moderate Temperatures
Bars, Carbon and Alloy, Hot-Wrought
Specification for Wrought Ferritic, Ferritic/Austenitic, A815/A815M
A234/A234M Specification for Piping Fittings of Wrought
and Martensitic Stainless Steel Piping Fittings
Specification for Heat-Treated Carbon Steel A858/A858M
Carbon Steel and Alloy Steel for Moderate and High
Fittings for Low-Temperature and Corrosive Service
Temperature Service
Specification for Wrought High-Strength A860/A860M
A262 Practices for Detecting Susceptibility to Intergranular
Ferritic Steel Butt-Welding Fittings
Attack in Austenitic Stainless Steels
1.2 In case of conflict between a requirement of the indi-
A370 Test Methods and Definitions for Mechanical Testing
vidual product specification and a requirement of this general
of Steel Products
requirement specification, the requirements of the individual
A388/A388M Practice for Ultrasonic Examination of Steel
product specification shall prevail over those of this specifica-
Forgings
tion.
A403/A403M SpecificationforWroughtAusteniticStainless
1.3 By mutual agreement between the purchaser and the
Steel Piping Fittings
supplier, additional requirements may be specified (See 4.1.8).
A420/A420M Specification for Piping Fittings of Wrought
The acceptance of any such additional requirements shall be
Carbon Steel and Alloy Steel for Low-Temperature Ser-
dependent on negotiations with the supplier and must be
vice
included in the order as agreed upon by the purchaser and
A700 Guide for Packaging, Marking, and Loading Methods
supplier.
for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemi-
1.4 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. Within the text and cal Analysis of Steel Products
A758/A758M Specification for Wrought-Carbon Steel Butt-
the tables, the SI units are shown in brackets.The values stated
Welding Piping Fittings with Improved Notch Toughness
A763 Practices for Detecting Susceptibility to Intergranular
Attack in Ferritic Stainless Steels
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting
2
Materials for Piping and Special Purpose Applications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved March 1, 2019. Published March 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1996. Last previous edition approved in 2016 as A960/A960M – 16a. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0960_A0960M-19 the ASTM website.
...
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: A960/A960M − 16a A960/A960M − 19
Standard Specification for
1
Common Requirements for Wrought Steel Piping Fittings
This standard is issued under the fixed designation A960/A960M; 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*
1.1 This specification covers a group of common requirements that shall apply to wrought steel piping fittings covered in any
of the following individual product specifications or any other ASTM specification that invokes this specification or portions
thereof:
Title of Specification ASTM
Designation
Specification for Piping Fittings of Wrought A234/A234M
Carbon Steel and Alloy Steel for Moderate and
Elevated Temperatures
Specification for Piping Fittings of Wrought A234/A234M
Carbon Steel and Alloy Steel for Moderate and
High Temperature Service
Specification for Wrought Austenitic Stainless A403/A403M
Steel Piping Fittings
Specification for Piping Fittings of Wrought Carbon A420/A420M
Steel and Alloy Steel for Low-Temperature Service
Specification for Butt-Welding, Wrought-Carbon A758/A758M
Steel, Piping
Fittings with Improved Notch Toughness
Specification for Wrought-Carbon Steel A758/A758M
Butt-Welding
Piping Fittings with Improved Notch Toughness
Specification for As-Welded Wrought Austenitic A774/A774M
Stainless Steel Fittings for General Corrosive
Service at Low and Moderate Temperatures
Specification for Wrought Ferritic, Ferritic/Austenitic, A815/A815M
and Martensitic Stainless Steel Piping Fittings
Specification for Heat-Treated Carbon Steel A858/A858M
Fittings for Low-Temperature and Corrosive Service
Specification for Wrought High-Strength A860/A860M
Low-Alloy Steel Butt-Welded Fittings
Specification for Wrought High-Strength A860/A860M
Ferritic Steel Butt-Welding Fittings
1.2 In case of conflict between a requirement of the individual product specification and a requirement of this general
requirement specification, the requirements of the individual product specification shall prevail over those of this specification.
1.3 By mutual agreement between the purchaser and the supplier, additional requirements may be specified (See 4.1.8). The
acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the
order as agreed upon by the purchaser and supplier.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text and the
tables, 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
specification. The inch-pound units shall apply unless the “M” designation [SI] of the product specification is specified in the order.
1.5 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.
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 A01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved Dec. 1, 2016March 1, 2019. Published December 2016March 2019. Originally approved in 1996. Last previous edition approved in 2016 as
A960/A960M – 16.A960/A960M – 16a. DOI: 10.1520/A0960_A0960M-16A.10.1520/A0960_A0960M-19
*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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A960/A960M − 19
2. Referenced Documents
2
2.1 ASTM Standards:
A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
A234/A234M Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature
Service
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A370 Test Meth
...
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