ASTM A961/A961M-08
(Specification)Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications
ABSTRACT
This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications. If the primary melting is required it shall incorporate separate degassing or refining and may be followed by secondary melting, such as electroslag remelting or vacuum remelting. If secondary melting is employed, the heat shall be defined as all of the ingot remelted from a single primary heat. Material requiring heat treatment shall be treated as specified in the individual product specification using the following procedures such as full annealing, solution annealing, isothermal annealing, normalizing, tempering and post-weld heat treatment, stress relieving. Heat analysis shall be used to determine the percentages of carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, titanium, tantalum, copper, cobalt, nitrogen, aluminum, vanadium, cerium to meet the required chemical composition. The product analysis shall be used to determine if the chemical composition shall conform to the limits of the product specified. Mechanical tests shall be performed to determine the mechanical properties such as hardness, tensile properties, and impact properties.
SCOPE
1.1 This specification covers a group of common requirements that shall apply to steel flanges, forged fittings, valves, and parts for piping applications under any of the following individual product specifications:
Title of Specification ASTM Designation Forgings, Carbon Steel, for Piping Components A 105/A 105M Forgings, Carbon Steel, for General-Purpose Piping A 181/A 181M Forged or Rolled Alloy-Steel Pipe Flanges, Forged A 182/A 182M Fittings, and Valves and Parts for High Temperature
Service Forgings, Carbon and Low Alloy Steel, Requiring Notch A 350/A 350M Toughness Testing for Piping Components Forged or Rolled 8 and 9 % Nickel Alloy A 522/A 522M Steel Flanges, Fittings, Valves, and Parts for Low-Temperature Service Forgings, Carbon and Alloy Steel, for Pipe Flanges, A 694/A 694M Fittings, Valves, and Parts for High-Pressure
Transmission Service Flanges, Forged, Carbon and Alloy Steel for Low A 707/A 707M Temperature Service Forgings, Carbon Steel, for Piping Components with A 727/A 727M Inherent Notch Toughness Forgings, Titanium-Stabilized Carbon Steel, for A 836/A 836M Glass-Lined Piping and Pressure Vessel Service
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 Section 4.1.2). 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 between the purchaser and supplier.
1.4 The values stated in either inch-pound units or SI units (metric) 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 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. The inch-pound units shall apply, unless the “M” designation (SI) of the product specification is specified in the order.
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Designation: A 961/A 961M – 08
Standard Specification for
Common Requirements for Steel Flanges, Forged Fittings,
1
Valves, and Parts for Piping Applications
This standard is issued under the fixed designationA 961/A 961M; 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* values stated in each system are not exact equivalents; there-
fore each system must be used independently of the other.
1.1 This specification covers a group of common require-
Combining values from the two systems may result in noncon-
ments that shall apply to steel flanges, forged fittings, valves,
formance with the specification. The inch-pound units shall
and parts for piping applications under any of the following
apply, unless the “M” designation (SI) of the product specifi-
individual product specifications:
cation is specified in the order.
Title of Specification ASTM Designation
2. Referenced Documents
Forgings, Carbon Steel, for Piping Components A 105/A 105M
Forgings, Carbon Steel, for General-Purpose Piping A 181/A 181M
2
2.1 ASTM Standards:
Forged or Rolled Alloy-Steel Pipe Flanges, Forged A 182/A 182M
A 105/A 105M Specification for Carbon Steel Forgings for
Fittings, and Valves and Parts for High Temperature
Service
Piping Applications
Forgings, Carbon and Low Alloy Steel, Requiring Notch A 350/A 350M
A 181/A 181M Specification for Carbon Steel Forgings, for
Toughness Testing for Piping Components
General-Purpose Piping
Forged or Rolled 8 and 9 % Nickel Alloy A 522/A 522M
Steel Flanges, Fittings, Valves, and Parts
A 182/A 182M Specification for Forged or Rolled Alloy
for Low-Temperature Service
and Stainless Steel Pipe Flanges, Forged Fittings, and
Forgings, Carbon and Alloy Steel, for Pipe Flanges, A 694/A 694M
Valves and Parts for High-Temperature Service
Fittings, Valves, and Parts for High-Pressure
Transmission Service
A 275/A 275M Practice for Magnetic Particle Examination
Flanges, Forged, Carbon and Alloy Steel for Low A 707/A 707M
of Steel Forgings
Temperature Service
A 350/A 350M Specification for Carbon and Low-Alloy
Forgings, Carbon Steel, for Piping Components with A 727/A 727M
Inherent Notch Toughness
Steel Forgings, Requiring Notch Toughness Testing for
Forgings, Titanium-Stabilized Carbon Steel, for A 836/A 836M
Piping Components
Glass-Lined Piping and Pressure Vessel Service
A 370 Test Methods and Definitions for MechanicalTesting
1.2 In case of conflict between a requirement of the indi-
of Steel Products
vidual product specification and a requirement of this general
A 522/A 522M SpecificationforForgedorRolled8and9%
requirement specification, the requirements of the individual
Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for
product specification shall prevail over those of this specifica-
Low-Temperature Service
tion.
A 694/A 694M Specification for Carbon and Alloy Steel
1.3 By mutual agreement between the purchaser and the
Forgings for Pipe Flanges, Fittings, Valves, and Parts for
supplier, additional requirements may be specified (see Section
High-Pressure Transmission Service
4.1.2). The acceptance of any such additional requirements
A 700 Practices for Packaging, Marking, and Loading
shall be dependent on negotiations with the supplier and must
Methods for Steel Products for Shipment
be included in the order as agreed upon between the purchaser
A 707/A 707M Specification for Forged Carbon and Alloy
and supplier.
Steel Flanges for Low-Temperature Service
1.4 The values stated in either inch-pound units or SI units
A 727/A 727M Specification for Carbon Steel Forgings for
(metric) are to be regarded separately as standard. Within the
Piping Components with Inherent Notch Toughness
text and the tables, the SI units are shown in brackets. The
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
2
A01.22 on Steel Forgings andWrought Fittings for PipingApplications and Bolting For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Materials for Piping and Special Purpose Applications. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved May 1, 2008. Published June 2008. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1996. Last previous edition approved in 2007 as A 961/A 961M–07. the ASTM website.
*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.
1
...
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:A 961/A 961M–07 Designation: A 961/A 961M – 08
Standard Specification for
Common Requirements for Steel Flanges, Forged Fittings,
1
Valves, and Parts for Piping Applications
This standard is issued under the fixed designationA 961/A 961M; 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 steel flanges, forged fittings, valves, and parts
for piping applications under any of the following individual product specifications:
Title of Specification ASTM Designation
Forgings, Carbon Steel, for Piping Components A 105/A 105MA105/
A105M
Forgings, Carbon Steel, for General-Purpose Piping A 181/A 181MA181/
A181M
Forged or Rolled Alloy-Steel Pipe Flanges, Forged A 182/A 182MA182/
A182M
Fittings, and Valves and Parts for High Temperature
Service
Forgings, Carbon and Low Alloy Steel, Requiring Notch A 350/A 350MA350/
A350M
Toughness Testing for Piping Components
Forged or Rolled 8 and 9 % Nickel Alloy A 522/A 522MA522/
A522M
Steel Flanges, Fittings, Valves, and Parts
for Low-Temperature Service
Forgings, Carbon and Alloy Steel, for Pipe Flanges, A 694/A 694MA694/
A694M
Fittings, Valves, and Parts for High-Pressure
Transmission Service
Flanges, Forged, Carbon and Alloy Steel for Low A 707/A 707MA707/
A707M
Temperature Service
Forgings, Carbon Steel, for Piping Components with A 727/A 727MA727/
A727M
Inherent Notch Toughness
Forgings, Titanium-Stabilized Carbon Steel, for A 836/A 836MA836/
A836M
Glass-Lined Piping and Pressure Vessel Service
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 Section 4.1.2).
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 between the purchaser and supplier.
1.4 The values stated in either inch-pound units or SI units (metric) are to be regarded separately as standard. Within the text
andthetables,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;thereforeeachsystem
must be used independently of the other. Combining values from the two systems may result in nonconformance with the
specification.Theinch-poundunitsshallapply,unlessthe“M”designation(SI)oftheproductspecificationisspecifiedintheorder.
2. Referenced Documents
2
2.1 ASTM Standards:
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved Feb.May 1, 2007.2008. Published February 2007.June 2008. Originally approved in 1996. Last previous edition approved in 20052007 as
A 961/A 961M–057.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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.
1
---------------------- Page: 1 ----------------------
A 961/A 961M – 08
A105/A105M Specification for Carbon Steel Forgings for Piping Applications
A181/A181M Specification for Carbon Steel Forgings, for General-Purpose Piping
A182/A182M Specification for Forged or RolledAlloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts
for High-Temperature Service
A275/A275M Practice for Magnetic Particle Examination of Steel Forgings
A350/A350M Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping
Components
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A522/A522M Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for
Low-Temperature Servi
...
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:A961/A961M–07 Designation: A 961/A 961M – 08
Standard Specification for
Common Requirements for Steel Flanges, Forged Fittings,
1
Valves, and Parts for Piping Applications
This standard is issued under the fixed designationA 961/A 961M; 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 steel flanges, forged fittings, valves, and parts
for piping applications under any of the following individual product specifications:
Title of Specification ASTM Designation
Forgings, Carbon Steel, for Piping Components A 105/A 105M
Forgings, Carbon Steel, for General-Purpose Piping A 181/A 181M
Forged or Rolled Alloy-Steel Pipe Flanges, Forged A 182/A 182M
Fittings, and Valves and Parts for High Temperature
Service
Forgings, Carbon and Low Alloy Steel, Requiring Notch A 350/A 350M
Toughness Testing for Piping Components
Forged or Rolled 8 and 9 % Nickel Alloy A 522/A 522M
Steel Flanges, Fittings, Valves, and Parts
for Low-Temperature Service
Forgings, Carbon and Alloy Steel, for Pipe Flanges, A 694/A 694M
Fittings, Valves, and Parts for High-Pressure
Transmission Service
Flanges, Forged, Carbon and Alloy Steel for Low A 707/A 707M
Temperature Service
Forgings, Carbon Steel, for Piping Components with A 727/A 727M
Inherent Notch Toughness
Forgings, Titanium-Stabilized Carbon Steel, for A 836/A 836M
Glass-Lined Piping and Pressure Vessel Service
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 Section 4.1.2).
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 between the purchaser and supplier.
1.4 The values stated in either inch-pound units or SI units (metric) are to be regarded separately as standard. Within the text
andthetables,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;thereforeeachsystem
must be used independently of the other. Combining values from the two systems may result in nonconformance with the
specification.Theinch-poundunitsshallapply,unlessthe“M”designation(SI)oftheproductspecificationisspecifiedintheorder.
2. Referenced Documents
2
2.1 ASTM Standards:
A 105/A 105M Specification for Carbon Steel Forgings for Piping Applications
A 181/A 181M Specification for Carbon Steel Forgings, for General-Purpose Piping
A 182/A 182M Specification for Forged or RolledAlloy and Stainless Steel Pipe Flanges, Forged Fittings, andValves and Parts
for High-Temperature Service
A 275/A 275M Practice for Magnetic Particle Examination of Steel Forgings
A 350/A 350M Specification for Carbon and Low-Alloy Steel Forgings, Requiring Notch Toughness Testing for Piping
Components
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.22
on Steel Forgings and Wrought Fittings for Piping Applications and Bolting Materials for Piping and Special Purpose Applications.
Current edition approved Feb.May 1, 2007.2008. Published February 2007.June 2008. Originally approved in 1996. Last previous edition approved in 20052007 as
A 961/A 961M–057.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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.
1
---------------------- Page: 1 ----------------------
A 961/A 961M – 08
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 522/A 522M Specification for Forged or Rolled 8 and 9% Nickel Alloy Steel Flanges, Fittings, Valves, and Parts for
Low-Temperature Service
A 694/A 694M Specification for Carbon and Alloy Steel Forgings for Pipe Flanges, Fittin
...
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