ASTM A790/A790M-03

Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

SCOPE
1.1 This specification covers seamless and straight-seam welded ferritic/austenitic steel pipe intended for general corrosive service, 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 Optional supplementary requirements are provided for pipe when a greater degree of testing is desired. These supplementary requirements call for additional tests to be made and, when desired, one or more of these may be specified in the order.
1.3 Appendix X1 of this specification lists the dimensions of welded and seamless stainless steel pipe as shown in ANSI B36.19. Pipe having other dimensions may be furnished provided such pipe complies with all other requirements of this specification.
1.4 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.
Note 1—The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as nominal diameter, size, and nominal size.

General Information

• Status: Historical
• Publication Date: 09-Apr-2003
• ICS: 23.040.10 - Iron and steel pipes
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.10 - Stainless and Alloy Steel Tubular Products

Relations

• Replaces: ASTM A790/A790M-02a - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
• Effective Date: 10-Apr-2003
• Replaced By: ASTM A790/A790M-04 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
• Effective Date: 01-Mar-2004
• Referred By: ASTM A999/A999M-23 - Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
• Effective Date: 10-Apr-2003
• Referred By: ASTM A554-21 - Standard Specification for Welded Stainless Steel Mechanical Tubing
• Effective Date: 10-Apr-2003

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 790/A 790M – 03
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Pipe
This standard is issued under the fixed designation A 790/A 790M; 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.
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1. Scope* lated Alloys and Feroalloys
2 A 999/A 999M Specification for General Requirements for
1.1 This specification covers seamless and straight-seam
4
Alloy and Stainless Steel Pipe
welded ferritic/austenitic steel pipe intended for general corro-
E 213 Practice for Ultrasonic Examination of Metal Pipe
sive service, with particular emphasis on resistance to stress
5
and Tubing
corrosion cracking. These steels are susceptible to embrittle-
E 309 Practice for Eddy-Current Examination of Steel Tu-
ment if used for prolonged periods at elevated temperatures.
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bular Products Using Magnetic Saturation
1.2 Optional supplementary requirements are provided for
E 381 Method of Macroetch Testing Steel Bars, Billets,
pipe when a greater degree of testing is desired. These
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Blooms, and Forgings
supplementary requirements call for additional tests to be made
E 426 Practice for Electromagnetic (Eddy-Current) Exami-
and, when desired, one or more of these may be specified in the
nation of Seamless and Welded Tubular Products, Austen-
order.
5
itic Stainless Steel and Similar Alloys
1.3 Appendix X1 of this specification lists the dimensions
4
E 527 Practice for Numbering Metals and Alloys (UNS)
of welded and seamless stainless steel pipe as shown in ANSI
7
2.2 ANSI Standards:
B36.19. Pipe having other dimensions may be furnished
B1.20.1 Pipe Threads, General Purpose
provided such pipe complies with all other requirements of this
B36.10 Welded and Seamless Wrought Steel Pipe
specification.
B36.19 Stainless Steel Pipe
1.4 The values stated in either inch-pound units or SI units
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2.3 SAE Standard:
are to be regarded separately as standard. Within the text, the
SAE J 1086
SI units are shown in brackets. The values stated in each
9
2.4 Other Standard:
system are not exact equivalents; therefore, each system must
SNT-TC-1A Personal Qualification and Certification in
be used independently of the other. Combining values from the
Nondestructive Testing
two systems may result in nonconformance with the specifi-
cation. The inch-pound units shall apply unless the M desig-
3. Terminology
nation of this specification is specified in the order.
3.1 Definitions—For definitions of terms used in this speci-
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
fication refer to Terminology A 941.
been substituted in this standard for such traditional terms as nominal
diameter, size, and nominal size.
4. Ordering Information
4.1 Orders for material under this specification should
2. Referenced Documents
include the following, as required, to describe the desired
2.1 ASTM Standards:
material adequately:
A 370 Test Methods and Definitions for Mechanical Testing
4.1.1 Quantity (feet, metres, or number of lengths),
3
of Steel Products
4.1.2 Name of material (ferritic/austenitic steel pipe),
A 941 Terminology Relating to Steel, Stainless Steel, Re-
4
Annual Book of ASTM Standards, Vol 01.01.
1 5
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Annual Book of ASTM Standards, Vol 03.03.
6
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 03.01.
7
A01.10 on Stainless and Alloy Steel Tubular Products. Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved Apr. 10, 2003. Published May 2003. Originally 4th Floor, New York, NY 10036.
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approved in 1981. Last previous edition approved in 2002 as A 790/A 790M – 02a. Available from Society of Automotive Engineers (SAE), 400 Commonwealth
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Dr., Warrendale, PA 15096-0001.
9
cation SA–790 in Section II of that Code. Available from The American Society for Nondestructive Testing (ASNT), P.O.
3
Annual Book of ASTM Standards, Vol 01.03. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518.
*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.
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A 790/A 790M – 03
4.1.3 Process (seamless or welded), 6.2 Discard—A sufficient discard shall be made from each
4.1.4 Grade (see Table 1), ingot to secure freedom from injurious piping and undue
4.1.5 Size (NPS designator or outsid
...