ASTM A789/A789M-04

Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

SCOPE
1.1 This specification covers 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.
1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, 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 of this specification is specified in the order.

General Information

• Status: Historical
• Publication Date: 29-Feb-2004
• 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-02a - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
• Effective Date: 01-Mar-2004
• Replaced By: ASTM A789/A789M-04a - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
• Effective Date: 01-Jul-2004
• 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-Mar-2004
• 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-Mar-2004
• Referred By: ASTM A1119/A1119M-23a - Standard Specification for Welded Partially Corrugated Stainless Steel Tube for Potable Water and General Service
• Effective Date: 01-Mar-2004
• 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-Mar-2004

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A 789/A 789M – 04
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Tubing for General Service
This standard is issued under the fixed designation A 789/A 789M; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope* SAE J 1086 Practice for Numbering Metals and Alloys
2 (UNS)
1.1 This specification covers grades of nominal wall thick-
ness, stainless steel tubing for services requiring general
3. Ordering Information
corrosion resistance, with particular emphasis on resistance to
3.1 Orders for product under this specification should in-
stress corrosion cracking. These steels are susceptible to
clude the following, as required, to describe the desired
embrittlement if used for prolonged periods at elevated tem-
material adequately:
peratures.
3.1.1 Quantity (feet, metres, or number of lengths),
1.2 The values stated in either inch-pound units or SI units
3.1.2 Name of product (seamless or welded tubes),
are to be regarded separately as standard. Within the text, the
3.1.3 Grade (see Table 1),
SI units are shown in brackets. The values stated in each
3.1.4 Size (outside diameter and nominal wall thickness),
system are not exact equivalents; therefore, each system must
3.1.5 Length (specific or random),
be used independently of the other. Combining values from the
3.1.6 Optional requirements (for product analysis, see Sec-
two systems may result in nonconformance with the specifi-
tion 8; for hydrostatic or nondestructive electric test, see
cation. The inch-pound units shall apply unless the M desig-
Section 10),
nation of this specification is specified in the order.
3.1.7 Test report required (see the Inspection section of
2. Referenced Documents Specification A 1016/A 1016M),
3
3.1.8 Specification designation, and
2.1 ASTM Standards:
3.1.9 Special requirements.
A 480/A 480M Specification for General Requirements for
Flat-Rolled Stainless and Heat-Resisting Steel Plate,
4. General Requirements
Sheet, and Strip
4.1 product furnished under this specification shall conform
A 1016/A 1016M Specification for General Requirements
to the applicable requirements of Specification A 1016/
for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stain-
A 1016M, unless otherwise provided herein.
less Steel Tubes
E 527 Practice for Numbering Metals and Alloys (UNS)
5. Manufacture
4
2.2 SAE Standard:
5.1 The tubes shall be made by the seamless or welded
process with no filler metal added.
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
6. Heat Treatment
Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee
A01.10 on Stainless and Alloy Steel Tubular Products.
6.1 All tubes shall be furnished in the heat-treated condition
Current edition approved March 1, 2004. Published March 2004. Originally
in accordance with the procedures shown in Table 2. For
approved in 1981. Last previous edition approved in 2002 as A 789/A 789M–02a.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- seamless tubes, as an alternate to final heat treatment in a
cation SA–789 in Section II of that Code.
continuous furnace or batch-type furnace, immediately follow-
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
ing hot forming while the temperature of the tubes is not less
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
than the specified minimum solution treatment temperature,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
tubes may be individually quenched in water or rapidly cooled
4
Available from Society of Automotive Engineers (SAE), 400 Commonwealth
by other means.
Dr., Warrendale, PA 15096-0001.
*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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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.
A 789/A 789M – 04
TABLE 1 Chemical Requirements
UNS
C Mn P S Si Ni Cr Mo N Cu Others
A
Designation
S31803 0.030 max 2.00 max 0.030 max 0.020 max 1.00 max 4.5–6.5 21.0–23.0 2.5–3.5 0.08–0.20 . . . . . .
S32205 0.030 max 2.00 max 0.030 max 0.020 max 1.00 max 4.5–6.5 22.0–23.0 3.0–3.5 0.14–0.20 . . . . . .
S31500 0.030 max 1.20–2.00 0.030 max 0.030 max 1.40–2.00 4.3–5.2 18.0–19.0 2.50–3.00 0.05–0.1 . . . . . .
S32550 0.04 max
...