ASTM A789/A789M-16a

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.

General Information

• Status: Historical
• Publication Date: 31-Aug-2016
• ICS: 23.040.40 - Metal fittings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.10 - Stainless and Alloy Steel Tubular Products

Relations

• Replaces: ASTM A789/A789M-16 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
• Effective Date: 01-Sep-2016
• Replaced By: ASTM A789/A789M-17 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
• Effective Date: 15-Mar-2017
• Referred By: ASTM A1012-10(2021) - Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins
• Effective Date: 01-Sep-2016
• Referred By: ASTM A1016/A1016M-18a - Standard Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
• Effective Date: 01-Sep-2016
• Referred By: ASTM A1098/A1098M-18(2022) - Standard Specification for Welded Austenitic, Ferritic, Martensitic and Duplex Stainless Steel Boiler, Superheater, Condenser, and Heat Exchanger Tubes with Textured Surface(s)
• Effective Date: 01-Sep-2016
• Referred By: ASTM A1119/A1119M-23a - Standard Specification for Welded Partially Corrugated Stainless Steel Tube for Potable Water and General Service
• Effective Date: 01-Sep-2016

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:A789/A789M −16a
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* 3. Ordering Information
2
1.1 This specification covers grades of average wall
3.1 Orders for product under this specification should in-
thickness, or, if specified on the order, minimum wall
clude the following, as required, to describe the desired
thickness, of stainless steel tubing for services requiring
material adequately:
general corrosion resistance, with particular emphasis on
3.1.1 Quantity (feet, metres, or number of lengths),
resistance to stress corrosion cracking.These steels are suscep-
3.1.2 Name of product (seamless or welded tubes),
tible to embrittlement if used for prolonged periods at elevated
3.1.3 Grade (see Table 1),
temperatures.
3.1.4 Size (outside diameter and average wall thickness,
1.2 The values stated in either SI units or inch-pound units unless minimum wall thickness is specified),
are to be regarded separately as standard. The values stated in
3.1.5 Length (specific or random),
each system may not be exact equivalents; therefore, each
3.1.6 Optional requirements (for product analysis, see Sec-
system shall be used independently of the other. Combining
tion 8; for hydrostatic or nondestructive electric test, see
values from the two systems may result in non-conformance
Section 10),
with the standard. Within the text, the SI units are shown in
3.1.7 Test report required (see the Inspection section of
brackets. The inch-pound units shall apply unless the M
Specification A1016/A1016M),
designation of this specification is specified in the order.
3.1.8 Specification designation, and
3.1.9 Special requirements.
2. Referenced Documents
3
2.1 ASTM Standards:
4. General Requirements
A480/A480M Specification for General Requirements for
4.1 Product furnished under this specification shall conform
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
to the applicable requirements of Specification A1016/
Sheet, and Strip
A1016M, unless otherwise provided herein.
A1016/A1016M Specification for General Requirements for
Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless
5. Manufacture
Steel Tubes
E527 Practice for Numbering Metals and Alloys in the
5.1 The tubes shall be made by the seamless or welded
Unified Numbering System (UNS)
process with no filler metal added.
4
2.2 SAE Standard:
SAE J 1086 Practice for Numbering Metals and Alloys
6. Heat Treatment
(UNS)
6.1 All tubes shall be furnished in the heat-treated condition
in accordance with the procedures shown in Table 2. For
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
seamless tubes, as an alternate to final heat treatment in a
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
A01.10 on Stainless and Alloy Steel Tubular Products.
continuous furnace or batch-type furnace, immediately follow-
Current edition approved Sept. 1, 2016. Published September 2016. Originally
ing hot forming while the temperature of the tubes is not less
approved in 1981. Last previous edition approved in 2016 as A789/A789M – 16.
than the specified minimum solution treatment temperature,
DOI: 10.1520/A0789_A0789M-16A.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- tubes may be individually quenched in water or rapidly cooled
cation SA–789 in Section II of that Code.
by other means.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
7. Chemical Composition
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
4 7.1 The steel shall conform to the chemical requirements
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
Dr., Warrendale, PA 15096-0001, http://www.sae.org. prescribed in Table 1.
*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−16a
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 5.5–7.5 24.0–26.0 2.5–3.5 0.10–0.30 0.20–0.80 W 0.10–0.50
S31500 0.030 1.20–2.00 0.030 0.030 1.40–2.00 4.3–5.2 1
...

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 − 16 A789/A789M − 16a
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.
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),
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.
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, 2016Sept. 1, 2016. Published March 2016September 2016. Originally approved in 1981. Last previous edition approved in 20142016
as A789/A789M – 14.A789/A789M – 16. DOI: 10.1520/A0789_A0789M-16.10.1520/A0789_A0789M-16A.
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 [e-mail]. 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 − 16a
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 5.5–7.5 24.0–26.0 2.5–3.5 0.10–0.30 0.20–0.80 W 0.10–0.50
S31500 0.030 1.20–2.00 0.030 0.030 1.40–2.00 4.3–5.2 18.0–19.0 2.50–3.00 0.05–0.1 . . . . . .
S31803 0.030 2.00 0.030 0.020 1.00 4.5–6.5 21.0–23.0 2.5–3.5 0.08–0.20 . . . . . .
S32001 0.030 4.00–6.00 0.040 0.030 1.00 1.0–3.0 19.5–21.5 0.60 0.05–0.17 1.00 . . .
S32003 0.030 2.00 0.030 0.020 1.00 3.0-4.0 19.5-22.5 1.50-2.00 0.14-0.20 . . . . . .
S32101 0.040 4
...