ASTM A961/A961M-16a

Standard Specification for Common Requirements for Steel Flanges, Forged Fittings, Valves, and Parts for Piping Applications<?Pub _bookmark Command="[Quick Mark]"?>

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  
A105/A105M  
Forgings, Carbon Steel, for General-Purpose Piping  
A181/A181M  
Forged or Rolled Alloy-Steel Pipe Flanges, Forged  
A182/A182M  
Fittings, and Valves and Parts for High Temperature
Service  
Forgings, Carbon and Low Alloy Steel, Requiring Notch  
A350/A350M  
Toughness Testing for Piping Components  
Forged or Rolled 8 and 9 % Nickel Alloy  
A522/A522M  
Steel Flanges, Fittings, Valves, and Parts  
for Low-Temperature Service  
Forgings, Carbon and Alloy Steel, for Pipe Flanges,  
A694/A694M  
Fittings, Valves, and Parts for High-Pressure
Transmission Service  
Flanges, Forged, Carbon and Alloy Steel for Low  
A707/A707M  
Temperature Service  
Forgings, Carbon Steel, for Piping Components with  
A727/A727M  
Inherent Notch Toughness  
Forgings, Titanium-Stabilized Carbon Steel, for  
A836/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 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 standard. The inch-pound units shall apply, unless the “M” designation (SI) of the product specification is specified in the order.

General Information

• Status: Historical
• Publication Date: 30-Nov-2016
• ICS: 23.040.01 - Pipeline components and pipelines in general
• ICS: 77.140.20 - Stainless steels
• 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

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:A961/A961M −16a
Standard Specification for
Common Requirements for Steel Flanges, Forged Fittings,
1
Valves, and Parts for Piping Applications
This standard is issued under the fixed designationA961/A961M; 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* the tables, the SI units are shown in brackets.The values stated
in each system may not be exact equivalents; therefore, each
1.1 This specification covers a group of common require-
system shall be used independently of the other. Combining
ments that shall apply to steel flanges, forged fittings, valves,
values from the two systems may result in non-conformance
and parts for piping applications under any of the following
with the standard. The inch-pound units shall apply, unless the
individual product specifications:
“M”designation(SI)oftheproductspecificationisspecifiedin
Title of Specification ASTM Designation
the order.
Forgings, Carbon Steel, for Piping Components A105/A105M
Forgings, Carbon Steel, for General-Purpose Piping A181/A181M 2. Referenced Documents
Forged or Rolled Alloy-Steel Pipe Flanges, Forged A182/A182M
2
2.1 ASTM Standards:
Fittings, and Valves and Parts for High Temperature
Service
A105/A105M Specification for Carbon Steel Forgings for
Forgings, Carbon and Low Alloy Steel, Requiring Notch A350/A350M
Piping Applications
Toughness Testing for Piping Components
A181/A181M Specification for Carbon Steel Forgings, for
Forged or Rolled 8 and 9 % Nickel Alloy A522/A522M
Steel Flanges, Fittings, Valves, and Parts
General-Purpose Piping
for Low-Temperature Service
A182/A182M Specification for Forged or Rolled Alloy and
Forgings, Carbon and Alloy Steel, for Pipe Flanges, A694/A694M
Stainless Steel Pipe Flanges, Forged Fittings, and Valves
Fittings, Valves, and Parts for High-Pressure
Transmission Service
and Parts for High-Temperature Service
Flanges, Forged, Carbon and Alloy Steel for Low A707/A707M
A275/A275M Practice for Magnetic Particle Examination of
Temperature Service
Steel Forgings
Forgings, Carbon Steel, for Piping Components with A727/A727M
Inherent Notch Toughness
A350/A350M SpecificationforCarbonandLow-AlloySteel
Forgings, Titanium-Stabilized Carbon Steel, for A836/A836M
Forgings, Requiring Notch Toughness Testing for Piping
Glass-Lined Piping and Pressure Vessel Service
Components
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
A522/A522M Specification for Forged or Rolled 8 and 9%
product specification shall prevail over those of this specifica-
NickelAlloy Steel Flanges, Fittings, Valves, and Parts for
tion.
Low-Temperature Service
1.3 By mutual agreement between the purchaser and the
A694/A694M Specification for Carbon and Alloy Steel
supplier, additional requirements may be specified (see Section
Forgings for Pipe Flanges, Fittings, Valves, and Parts for
4.1.2). The acceptance of any such additional requirements
High-Pressure Transmission Service
shall be dependent on negotiations with the supplier and must
A700 Guide for Packaging, Marking, and Loading Methods
be included in the order as agreed upon between the purchaser
for Steel Products for Shipment
and supplier.
A707/A707M Specification for Forged Carbon and Alloy
Steel Flanges for Low-Temperature Service
1.4 The values stated in either SI units or inch-pound units
A727/A727M Specification for Carbon Steel Forgings for
are to be regarded separately as standard. Within the text and
Piping Components with Inherent Notch Toughness
A751 Test Methods, Practices, and Terminology for Chemi-
1
cal Analysis of Steel Products
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 Dec. 1, 2016. Published December 2016. Originally contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
approved in 1996. Last previous edition approved in 2016 as A961/A961M – 16. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0961_A0961M-16A. 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,
...

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: A961/A961M − 16 A961/A961M − 16a
Standard Specification for
Common Requirements for Steel Flanges, Forged Fittings,
1
Valves, and Parts for Piping Applications
This standard is issued under the fixed designation A961/A961M; 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 A105/A105M
Forgings, Carbon Steel, for General-Purpose Piping A181/A181M
Forged or Rolled Alloy-Steel Pipe Flanges, Forged A182/A182M
Fittings, and Valves and Parts for High Temperature
Service
Forgings, Carbon and Low Alloy Steel, Requiring Notch A350/A350M
Toughness Testing for Piping Components
Forged or Rolled 8 and 9 % Nickel Alloy A522/A522M
Steel Flanges, Fittings, Valves, and Parts
for Low-Temperature Service
Forgings, Carbon and Alloy Steel, for Pipe Flanges, A694/A694M
Fittings, Valves, and Parts for High-Pressure
Transmission Service
Flanges, Forged, Carbon and Alloy Steel for Low A707/A707M
Temperature Service
Forgings, Carbon Steel, for Piping Components with A727/A727M
Inherent Notch Toughness
Forgings, Titanium-Stabilized Carbon Steel, for A836/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 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 standard.
The inch-pound units shall apply, unless the “M” designation (SI) of the product specification is specified in the order.
2. Referenced Documents
2
2.1 ASTM Standards:
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 Rolled Alloy 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
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 June 1, 2016Dec. 1, 2016. Published June 2016December 2016. Originally approved in 1996. Last previous edition approved in 20152016 as
A961/A961M – 15.A961/A961M – 16. DOI: 10.1520/A0961_A0961M-16.10.1520/A0961_A0961M-16A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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 ----------------------
A961/A961M − 16a
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 Service
A694/A694M Spe
...