ASTM A790/A790M-01

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 where 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-Mar-2001
• 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-00a - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
• Effective Date: 10-Mar-2001
• Replaced By: ASTM A790/A790M-02 - Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
• Effective Date: 10-Sep-2002
• Referred By: ASTM A999/A999M-23 - Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
• Effective Date: 10-Mar-2001
• Referred By: ASTM A554-21 - Standard Specification for Welded Stainless Steel Mechanical Tubing
• Effective Date: 10-Mar-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: A 790/A 790M – 01 An American National Standard
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
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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 Alloy and Stainless Steel Pipe
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E 213 Practice for Ultrasonic Examination of Metal Pipe
1.1 This specification covers seamless and straight-seam
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and Tubing
welded ferritic/austenitic steel pipe intended for general corro-
E 309 Practice for Eddy-Current Examination of Steel Tu-
sive service, with particular emphasis on resistance to stress
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bular Products Using Magnetic Saturation
corrosion cracking. These steels are susceptible to embrittle-
E 381 Method of Macroetch Testing Steel Bars, Billets,
ment if used for prolonged periods at elevated temperatures.
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Blooms, and Forgings
1.2 Optional supplementary requirements are provided for
E 426 Practice for Electromagnetic (Eddy-Current) Exami-
pipe when a greater degree of testing is desired. These
nation of Seamless and Welded Tubular Products, Austen-
supplementary requirements call for additional tests to be made
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itic Stainless Steel and Similar Alloys
and, when desired, one or more of these may be specified in the
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E 527 Practice for Numbering Metals and Alloys (UNS)
order.
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2.2 ANSI Standards:
1.3 Appendix X1 of this specification lists the dimensions
B1.20.1 Pipe Threads, General Purpose
of welded and seamless stainless steel pipe as shown in ANSI
B36.10 Welded and Seamless Wrought Steel Pipe
B36.19. Pipe having other dimensions may be furnished
B36.19 Stainless Steel Pipe
provided such pipe complies with all other requirements of this
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2.3 SAE Standard:
specification.
SAE J 1086
1.4 The values stated in either inch-pound units or SI units
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2.4 Other Standard:
are to be regarded separately as standard. Within the text, the
SNT-TC-1A Personal Qualification and Certification in
SI units are shown in brackets. The values stated in each
Nondestructive Testing
system are not exact equivalents; therefore, each system must
be used independently of the other. Combining values from the
3. Terminology
two systems may result in nonconformance with the specifi-
3.1 Definitions—For definitions of terms used in this speci-
cation. The inch-pound units shall apply unless the M desig-
fication refer to Terminology A 941.
nation of this specification is specified in the order.
NOTE 1—The dimensionless designator NPS (nominal pipe size) has 4. Ordering Information
been substituted in this standard for such traditional terms as nominal
4.1 Orders for material under this specification should
diameter, size, and nominal size.
include the following, as required, to describe the desired
material adequately:
2. Referenced Documents
4.1.1 Quantity (feet, metres, or number of lengths),
2.1 ASTM Standards:
4.1.2 Name of material (ferritic/austenitic steel pipe),
A 370 Test Methods and Definitions for Mechanical Testing
4.1.3 Process (seamless or welded),
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of Steel Products
4.1.4 Grade (see Table 1),
A 941 Terminology Relating to Steel, Stainless Steel, Re-
4.1.5 Size (NPS designator or outside diameter and sched-
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lated Alloys and Feroalloys
ule number of average wall thickness),
A 999/A 999M Specification for General Requirements for
4.1.6 Length (specific or random) (see Section 11),
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
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Stainless Steel, and Related Alloys and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 03.03.
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A01.10 on Stainless and Alloy Steel Tubular Products. Annual Book of ASTM Standards, Vol 03.01.
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Current edition approved Mar. 10, 2001. Published May 2001. Originally Available from American National Standards Institute, 11 West 42nd St., 13th
published as A 790 – 81. Last previous edition A 790/A 790M – 00a. Floor, New York, NY 10036.
2 8
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available from Society of Automotive Engineers, 400 Commonwealth Drive,
cation SA–790 in Section II of that Code. Warrendale, PA 15096.
3 9
Annual Book of ASTM Standards, Vol 01.03. Available from Society for Nondestructive Testing, 711 Arlingate Plaza, P.O.
4
Annual Book of ASTM Standards, Vol 01.01. Box 28518, Columbus, OH 43228-0518.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International
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