ASTM A789/A789M-22
(Specification)Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
ABSTRACT
This specification covers standard requirements for grades of nominal wall thickness, stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures. Heat and product analyses shall be performed wherein the steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, nickel, chromium, molybdenum, nitrogen, copper, and others. All tubes shall be furnished in the heat-treated condition in accordance with the specified temperature and quench conditions. When the final heat treatment is in a continuous furnace, or when heat treated condition is obtained directly by quenching after hot forming, the number of tubes of the same size and from the same heat in a lot shall be determined from the prescribed sizes of the tubes. The material shall conform to the prescribed tensile and hardness properties. Mechanical tests such as tension test, flaring test (for seamless tubes), flange test (for welded tubes), hardness test, and reverse flattening test shall be performed on the steel tubing. Each tube shall also be subjected to the nondestructive electric test or the hydrostatic test.
SCOPE
1.1 This specification2 covers grades of average wall thickness, or, if specified on the order, minimum wall thickness, of stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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. Within the text, the SI units are shown in brackets. The inch-pound units shall apply unless the M designation of this specification is specified in the order.
1.3 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:A789/A789M −22
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Tubing for General Service
This standard is issued under the fixed designationA789/A789M; 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* E527 Practice for Numbering Metals and Alloys in the
2 Unified Numbering System (UNS)
1.1 This specification covers grades of average wall
4
2.2 SAE Standard:
thickness, or, if specified on the order, minimum wall
SAE J 1086 Practice for Numbering Metals and Alloys
thickness, of stainless steel tubing for services requiring
(UNS)
general corrosion resistance, with particular emphasis on
resistance to stress corrosion cracking.These steels are suscep-
3. Ordering Information
tible to embrittlement if used for prolonged periods at elevated
3.1 Orders for product under this specification should in-
temperatures.
clude the following, as required, to describe the desired
1.2 The values stated in either SI units or inch-pound units
material adequately:
are to be regarded separately as standard. The values stated in
3.1.1 Quantity (feet, metres, or number of lengths),
each system may not be exact equivalents; therefore, each
3.1.2 Name of product (seamless or welded tubes),
system shall be used independently of the other. Combining
3.1.3 Grade (see Table 1),
values from the two systems may result in non-conformance
3.1.4 Size (outside diameter and average wall thickness,
with the standard. Within the text, the SI units are shown in
unless minimum wall thickness is specified),
brackets. The inch-pound units shall apply unless the M
3.1.5 Length (specific or random),
designation of this specification is specified in the order.
3.1.6 Optional requirements (for product analysis, see Sec-
1.3 This international standard was developed in accor-
tion 8; for hydrostatic or nondestructive electric test, see
dance with internationally recognized principles on standard-
Section 10),
ization established in the Decision on Principles for the
3.1.7 Test report required (see the Inspection section of
Development of International Standards, Guides and Recom-
Specification A1016/A1016M),
mendations issued by the World Trade Organization Technical
3.1.8 Specification designation, and
Barriers to Trade (TBT) Committee.
3.1.9 Special requirements.
2. Referenced Documents
4. General Requirements
3
2.1 ASTM Standards:
4.1 Product furnished under this specification shall conform
A480/A480M Specification for General Requirements for
to the applicable requirements of Specification A1016/
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
A1016M, unless otherwise provided herein.
Sheet, and Strip
A1016/A1016M Specification for General Requirements for
5. Manufacture
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
5.1 The tubes shall be made by the seamless or welded
Steel Tubes
process with no filler metal added.
1
6. Heat Treatment
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
6.1 All tubes shall be furnished in the heat-treated condition
A01.10 on Stainless and Alloy Steel Tubular Products.
in accordance with the procedures shown in Table 2. For
Current edition approved March 1, 2022. Published March 2022. Originally
approved in 1981. Last previous edition approved in 2020 as A789/A789M – 20.
seamless tubes, as an alternate to final heat treatment in a
DOI: 10.1520/A0789_A0789M-22.
continuous furnace or batch-type furnace, immediately follow-
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
ing hot forming while the temperature of the tubes is not less
cation SA–789 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001, http://www.sae.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
1
---------------------- Page: 1 ----------------------
A789/A789M−22
A
TABLE 1 Chemical Requirements
UNS
C Mn P S Si Ni Cr Mo N Cu Others
B
Desig
...
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: A789/A789M − 20 A789/A789M − 22
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Tubing for General Service
This standard is issued under the fixed designation A789/A789M; 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 grades of average wall thickness, or, if specified on the order, minimum wall thickness, of stainless
steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking.
These steels are susceptible to embrittlement if used for prolonged periods at elevated temperatures.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. 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. Within the text, the SI units are shown in brackets. The inch-pound
units shall apply unless the M designation of this specification is specified in the order.
1.3 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.
2. Referenced Documents
3
2.1 ASTM Standards:
A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel
Tubes
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
4
2.2 SAE Standard:
SAE J 1086 Practice for Numbering Metals and Alloys (UNS)
3. Ordering Information
3.1 Orders for product under this specification should include the following, as required, to describe the desired material
adequately:
3.1.1 Quantity (feet, metres, or number of lengths),
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, 2020March 1, 2022. Published March 2020March 2022. Originally approved in 1981. Last previous edition approved in 20182020 as
A789/A789M – 18.A789/A789M – 20. DOI: 10.1520/A0789_A0789M-20.10.1520/A0789_A0789M-22.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA–789 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM 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.
4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.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
1
---------------------- Page: 1 ----------------------
A789/A789M − 22
3.1.2 Name of product (seamless or welded tubes),
3.1.3 Grade (see Table 1),
3.1.4 Size (outside diameter and average wall thickness, unless minimum wall thickness is specified),
3.1.5 Length (specific or random),
3.1.6 Optional requirements (for product analysis, see Section 8; for hydrostatic or nondestructive electric test, see Section 10),
3.1.7 Test report required (see the Inspection section of Specification A1016/A1016M),
3.1.8 Specification designation, and
3.1.9 Special requirements.
4. General Requirements
4.1 Product furnished under this specification shall conform to the applicable requirements of Specification A1016/A1016M,
unless otherwise provided herein.
5. Manufacture
5.1 The tubes shall be made by the seamless or welded process with no filler metal added.
6. Heat Treatment
6.1 All tubes shall be furnished in the heat-treated condition in accordance with the procedures shown in Table 2. For seamless
A
TABLE 1 Chemical Requirements
UNS
C Mn P S Si Ni Cr M
...
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: A789/A789M − 22
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Tubing for General Service
This standard is issued under the fixed designation A789/A789M; 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* E527 Practice for Numbering Metals and Alloys in the
2 Unified Numbering System (UNS)
1.1 This specification covers grades of average wall
4
2.2 SAE Standard:
thickness, or, if specified on the order, minimum wall
SAE J 1086 Practice for Numbering Metals and Alloys
thickness, of stainless steel tubing for services requiring
(UNS)
general corrosion resistance, with particular emphasis on
resistance to stress corrosion cracking. These steels are suscep-
3. Ordering Information
tible to embrittlement if used for prolonged periods at elevated
3.1 Orders for product under this specification should in-
temperatures.
clude the following, as required, to describe the desired
1.2 The values stated in either SI units or inch-pound units
material adequately:
are to be regarded separately as standard. The values stated in
3.1.1 Quantity (feet, metres, or number of lengths),
each system may not be exact equivalents; therefore, each
3.1.2 Name of product (seamless or welded tubes),
system shall be used independently of the other. Combining
3.1.3 Grade (see Table 1),
values from the two systems may result in non-conformance
3.1.4 Size (outside diameter and average wall thickness,
with the standard. Within the text, the SI units are shown in
unless minimum wall thickness is specified),
brackets. The inch-pound units shall apply unless the M
3.1.5 Length (specific or random),
designation of this specification is specified in the order.
3.1.6 Optional requirements (for product analysis, see Sec-
1.3 This international standard was developed in accor-
tion 8; for hydrostatic or nondestructive electric test, see
dance with internationally recognized principles on standard-
Section 10),
ization established in the Decision on Principles for the
3.1.7 Test report required (see the Inspection section of
Development of International Standards, Guides and Recom-
Specification A1016/A1016M),
mendations issued by the World Trade Organization Technical
3.1.8 Specification designation, and
Barriers to Trade (TBT) Committee.
3.1.9 Special requirements.
2. Referenced Documents
4. General Requirements
3
2.1 ASTM Standards:
4.1 Product furnished under this specification shall conform
A480/A480M Specification for General Requirements for
to the applicable requirements of Specification A1016/
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
A1016M, unless otherwise provided herein.
Sheet, and Strip
A1016/A1016M Specification for General Requirements for
5. Manufacture
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
5.1 The tubes shall be made by the seamless or welded
Steel Tubes
process with no filler metal added.
1
6. Heat Treatment
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
6.1 All tubes shall be furnished in the heat-treated condition
A01.10 on Stainless and Alloy Steel Tubular Products.
in accordance with the procedures shown in Table 2. For
Current edition approved March 1, 2022. Published March 2022. Originally
approved in 1981. Last previous edition approved in 2020 as A789/A789M – 20.
seamless tubes, as an alternate to final heat treatment in a
DOI: 10.1520/A0789_A0789M-22.
continuous furnace or batch-type furnace, immediately follow-
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi-
ing hot forming while the temperature of the tubes is not less
cation SA–789 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from Society of Automotive Engineers (SAE), 400 Commonwealth
the ASTM website. Dr., Warrendale, PA 15096-0001, http://www.sae.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
1
---------------------- Page: 1 ----------------------
A789/A789M − 22
A
TABLE 1 Chemical Requirements
UNS
C Mn P S Si Ni Cr Mo N Cu Others
B
Designation
S31200 0.030 2.00 0.045 0.030 1.00 5.5–6.5 24.0–26.0 1.20–2.00 0.14–0.20 . . . . . .
S31260 0.030 1.00 0.030 0.030 0.75 5.5
...
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