ASTM A999/A999M-23
(Specification)Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
SCOPE
1.1 This specification2 covers a group of general requirements that, unless otherwise specified in an individual specification, shall apply to the ASTM product specifications noted below.
1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this specification and a more stringent requirement of the purchase order, the purchase order shall prevail.
Title of Specification
ASTM Desig-
nation3
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A312/A312M
Seamless and Welded Steel Pipe for Low-Temperature
Service and Other Applications with Required Notch
Toughness
A333/A333M
Seamless Ferritic Alloy-Steel Pipe for High Temperature
Service
A335/A335M
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless
Steel Pipe for High-Temperature Service and General
Applications
A358/A358M
Carbon and Ferritic Alloy Steel Forged and Bored Pipe for
High-Temperature Service
A369/A369M
Seamless Austenitic Steel Pipe for High-Temperature
Service
A376/A376M
Welded Large Diameter Austenitic Steel Pipe for Corrosive
or High-Temperature Service
A409/A409M
Centrifugally Cast Ferritic Alloy Steel Pipe for
High-Temperature Service
A426/A426M
Centrifugally Cast Austenitic Steel Pipe for High-
Temperature Service
A451/A451M
Centrifugally Cast Iron-Chromium-Nickel High-Alloy
Tubing for Pressure Application at High
Temperatures
A608/A608M
Welded, Unannealed Austenitic Stainless Steel Tubular
Products
A778/A778M
Seamless and Welded Ferritic/Austenitic
Stainless Steel Pipe
A790/A790M
Single- or Double-Welded Austenitic Stainless Steel Pipe
A813/A813M
Cold-Worked Welded Austenitic Stainless Steel Pipe
A814/A814M
Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe
for Corrosive Environments
A872/A872M
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric
Fusion Welded with Addition of Filler Metal
A928/A928M
Spray-Formed Seamless Austenitic Stainless Steel Pipes
A943/A943M
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel Pipe
A949/A949M
Austenitic Chromium-Nickel-Silicon Alloy Steel Seamless
and Welded Pipe
A954
1.3 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. The inch-pound units apply unless the “M” designation (SI) of the product specification is specified in the order.
Note 1: The dimensionless designator NPS (nominal pipe size) is used in this standard for such traditional terms as “nominal diameter,” “size,” “nominal bore,” and “nominal size.”
1.4 The following precautionary statement pertains only to the test method portion, Section 21, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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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Standards Content (Sample)
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.
Designation: A999/A999M − 23
Standard Specification for
1
General Requirements for Alloy and Stainless Steel Pipe
This standard is issued under the fixed designation A999/A999M; 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*
Single- or Double-Welded Austenitic Stainless Steel Pipe A813/A813M
Cold-Worked Welded Austenitic Stainless Steel Pipe A814/A814M
2
1.1 This specification covers a group of general require-
Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe A872/A872M
ments that, unless otherwise specified in an individual for Corrosive Environments
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric A928/A928M
specification, shall apply to the ASTM product specifications
Fusion Welded with Addition of Filler Metal
noted below.
Spray-Formed Seamless Austenitic Stainless Steel Pipes A943/A943M
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel A949/A949M
1.2 In the case of conflict between a requirement of a
Pipe
product specification and a requirement of this specification,
Austenitic Chromium-Nickel-Silicon Alloy Steel Seamless A954
and Welded Pipe
the product specification shall prevail. In the case of conflict
between a requirement of the product specification or a 1.3 The values stated in either SI units or inch-pound units
requirement of this specification and a more stringent require-
are to be regarded separately as standard. Within the text, the
ment of the purchase order, the purchase order shall prevail. SI units are shown in brackets. The values stated in each
system may not be exact equivalents; therefore, each system
Title of Specification ASTM Desig-
3
nation
shall be used independently of the other. Combining values
from the two systems may result in non-conformance with the
Seamless, Welded, and Heavily Cold Worked Austenitic A312/A312M
standard. The inch-pound units apply unless the “M” designa-
Stainless Steel Pipes
Seamless and Welded Steel Pipe for Low-Temperature A333/A333M
tion (SI) of the product specification is specified in the order.
Service and Other Applications with Required Notch
Toughness
NOTE 1—The dimensionless designator NPS (nominal pipe size) is used
Seamless Ferritic Alloy-Steel Pipe for High Temperature A335/A335M
in this standard for such traditional terms as “nominal diameter,” “size,”
Service
“nominal bore,” and “nominal size.”
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless A358/A358M
1.4 The following precautionary statement pertains only to
Steel Pipe for High-Temperature Service and General
Applications
the test method portion, Section 21, of this specification: This
Carbon and Ferritic Alloy Steel Forged and Bored Pipe for A369/A369M
standard does not purport to address all of the safety concerns,
High-Temperature Service
Seamless Austenitic Steel Pipe for High-Temperature A376/A376M if any, associated with its use. It is the responsibility of the user
Service
of this standard to establish appropriate safety, health, and
Welded Large Diameter Austenitic Steel Pipe for Corrosive A409/A409M
environmental practices and determine the applicability of
or High-Temperature Service
Centrifugally Cast Ferritic Alloy Steel Pipe for A426/A426M regulatory limitations prior to use.
High-Temperature Service
1.5 This international standard was developed in accor-
Centrifugally Cast Austenitic Steel Pipe for High- A451/A451M
dance with internationally recognized principles on standard-
Temperature Service
Centrifugally Cast Iron-Chromium-Nickel High-Alloy A608/A608M
ization established in the Decision on Principles for the
Tubing for Pressure Application at High
Development of International Standards, Guides and Recom-
Temperatures
mendations issued by the World Trade Organization Technical
Welded, Unannealed Austenitic Stainless Steel Tubular A778/A778M
Products
Barriers to Trade (TBT) Committee.
Seamless and Welded Ferritic/Austenitic A790/A790M
Stainless Steel Pipe
2. Referenced Documents
4
2.1 ASTM Standards:
1
A312/A312M Specification for Seamless, Welded, and
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
Heavily Cold Worked Austenitic Stainless Steel Pipes
A01.10 on Stainless and Alloy Steel Tubular Products.
A333/A333M Specification for Seamless and Welded Steel
Current edition approved Sept. 1, 2023. Published September 2023. Originally
approved in 1998. Last prev
...
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: A999/A999M − 18 A999/A999M − 23
Standard Specification for
1
General Requirements for Alloy and Stainless Steel Pipe
This standard is issued under the fixed designation A999/A999M; 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 a group of general requirements that, unless otherwise specified in an individual specification, shall
apply to the ASTM product specifications noted below.
1.2 In the case of conflict between a requirement of a product specification and a requirement of this specification, the product
specification shall prevail. In the case of conflict between a requirement of the product specification or a requirement of this
specification and a more stringent requirement of the purchase order, the purchase order shall prevail.
Title of Specification ASTM Desig-
3
nation
Seamless, Welded, and Heavily Cold Worked Austenitic A312/A312M
Stainless Steel Pipes
Seamless and Welded Steel Pipe for Low-Temperature A333/A333M
Service and Other Applications with Required Notch
Toughness
Seamless Ferritic Alloy-Steel Pipe for High Temperature A335/A335M
Service
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless A358/A358M
Steel Pipe for High-Temperature Service and General
Applications
Carbon and Ferritic Alloy Steel Forged and Bored Pipe for A369/A369M
High-Temperature Service
Seamless Austenitic Steel Pipe for High-Temperature A376/A376M
Service
Welded Large Diameter Austenitic Steel Pipe for Corrosive A409/A409M
or High-Temperature Service
Centrifugally Cast Ferritic Alloy Steel Pipe for A426/A426M
High-Temperature Service
Centrifugally Cast Austenitic Steel Pipe for High- A451/A451M
Temperature Service
Centrifugally Cast Iron-Chromium-Nickel High-Alloy A608/A608M
Tubing for Pressure Application at High
Temperatures
Welded, Unannealed Austenitic Stainless Steel Tubular A778/A778M
Products
Seamless and Welded Ferritic/Austenitic A790/A790M
Stainless Steel Pipe
Single- or Double-Welded Austenitic Stainless Steel Pipe A813/A813M
Cold-Worked Welded Austenitic Stainless Steel Pipe A814/A814M
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 A01.10
on Stainless and Alloy Steel Tubular Products.
Current edition approved March 1, 2018Sept. 1, 2023. Published March 2018September 2023. Originally approved in 1998. Last previous edition approved in 20172018
as A999/A999M – 17.A999/A999M – 18. DOI: 10.1520/A0999_A0999M-18.10.1520/A0999_A0999M-23.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA 999 in Section II of that Code.
3
These designations refer to the latest issue of the respective specifications. See Annual Book of ASTM Standards, Vol 01.01.
*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
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A999/A999M − 23
Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe A872/A872M
for Corrosive Environments
Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric A928/A928M
Fusion Welded with Addition of Filler Metal
Spray-Formed Seamless Austenitic Stainless Steel Pipes A943/A943M
Spray-Formed Seamless Ferritic/Austenitic Stainless Steel A949/A949M
Pipe
Austenitic Chromium-Nickel-Silicon Alloy Steel Seamless A954
and Welded Pipe
1.3 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. The
inch-pound units apply unless the “M” designation (SI) of the product specification is specified in the order.
NOTE 1—The dimensionless designator NPS (nominal pipe size) is used in this standard for such traditional terms as “nominal diameter,” “size,” “nominal
bore,” and “nominal size.”
1.4 The following precautionary statement pertains only to the test method portion, Section 2221, of this specification: This
standard does not purport to address all of
...
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