ASTM A790/A790M-09
(Specification)Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe
ABSTRACT
The specification covers seamless and straight-seam welded ferritic/austenitic steel pipe for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. The pipe shall be made by the seamless or an automatic welding process, with no addition of filler metal in the welding operation. Heat analysis shall be made to determine the percentages of the elements specified. Tension tests, hardening tests, flattening tests, hydrostatic tests and nondestructive electric tests shall be made to conform to the specified requirements.
SIGNIFICANCE AND USE
This test method may be used for product development and design, production validation, manufacturing process control, lot acceptance, or for a combination thereof.
The rate of inflation in this method does not attempt to mimic that of an actual cushion deployment, nor is it intended to subject the cushion to the dynamic loads, stress, and temperatures during such an event. It is also recognized that the compressed air used for this tests may not leak through the cushion at the same rate as the gas or mixture of gasses typically used in cushion inflators. Rather this method is intended to give a relative indication of the pressure holding ability of the cushion.
The internal volume and internal design of cushions varies greatly. This test method is most useful when comparing data from cushions of the same design and volume. This test method does not provide any data concerning the volume of gas leaking from the bag. At certain higher levels of the initial internal pressure, this test method will irreversibly damage the cushion and change its leakage properties for future testing or for commercial use. The damage to the bag is dependent on the design or shape of a specific bag and the type of coating applied. It is the responsibility of the supplier and / or purchaser to determine if the parameters under which a cushion is tested will be destructive and render the cushion unfit for future use
Within the limits of variance expressed in Section 12, this test method is useful for design and production validation and may be suitable for incorporation in a cushion specification or for lot acceptance testing of commercial shipments.
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.
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Designation: A790/A790M – 09
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Pipe
This standard is issued under the fixed designationA790/A790M; 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* A370 Test Methods and Definitions for Mechanical Testing
2 of Steel Products
1.1 This specification covers seamless and straight-seam
A923 Test Methods for Detecting Detrimental Intermetallic
welded ferritic/austenitic steel pipe intended for general corro-
Phase in Duplex Austenitic/Ferritic Stainless Steels
sive service, with particular emphasis on resistance to stress
A941 Terminology Relating to Steel, Stainless Steel, Re-
corrosion cracking. These steels are susceptible to embrittle-
lated Alloys, and Ferroalloys
ment if used for prolonged periods at elevated temperatures.
A999/A999M Specification for General Requirements for
1.2 Optional supplementary requirements are provided for
Alloy and Stainless Steel Pipe
pipe when a greater degree of testing is desired. These
E213 Practice for Ultrasonic Testing of Metal Pipe and
supplementaryrequirementscallforadditionalteststobemade
Tubing
and,whendesired,oneormoreofthesemaybespecifiedinthe
E309 Practice for Eddy-Current Examination of Steel Tu-
order.
bular Products Using Magnetic Saturation
1.3 Appendix X1 of this specification lists the dimensions
E381 Method of Macroetch Testing Steel Bars, Billets,
of welded and seamless stainless steel pipe as shown in ANSI
Blooms, and Forgings
B36.19. Pipe having other dimensions may be furnished
E426 Practice for Electromagnetic (Eddy-Current) Exami-
provided such pipe complies with all other requirements of this
nation of Seamless and Welded Tubular Products, Austen-
specification.
itic Stainless Steel and Similar Alloys
1.4 The values stated in either inch-pound units or SI units
E527 Practice for Numbering Metals and Alloys in the
are to be regarded separately as standard. Within the text, the
Unified Numbering System (UNS)
SI units are shown in brackets. The values stated in each
4
2.2 ANSI Standards:
system are not exact equivalents; therefore, each system must
B1.20.1 Pipe Threads, General Purpose
be used independently of the other. Combining values from the
B36.10 Welded and Seamless Wrought Steel Pipe
two systems may result in nonconformance with the specifi-
B36.19 Stainless Steel Pipe
cation. The inch-pound units shall apply unless the M desig-
5
2.3 SAE Standard:
nation of this specification is specified in the order.
SAE J 1086
NOTE 1—The dimensionless designator NPS (nominal pipe size) has 6
2.4 Other Standard:
been substituted in this standard for such traditional terms as nominal
SNT-TC-1A Personal Qualification and Certification in
diameter, size, and nominal size.
Nondestructive Testing
2.5 AWS Standard
2. Referenced Documents
3 A5.9 Corrosion-Resisting Chromium and Chromium-
2.1 ASTM Standards:
Nickel Steel Welding Rods and Electrodes
1
3. Terminology
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
3.1 Definitions—For definitions of terms used in this speci-
A01.10 on Stainless and Alloy Steel Tubular Products.
fication refer to Terminology A941.
Current edition approved Aug. 1, 2009. Published September 2009. Originally
approved in 1981. Last previous edition approved in 2008 as A790/A790M – 08a.
DOI: 10.1520/A0790_A0790M-09.
2 4
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
cation SA–790 in Section II of that Code. 4th Floor, New York, NY 10036, http://www.ansi.org.
3 5
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Society of Automotive Engineers (SAE), 400 Commonwealth
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Dr., Warrendale, PA 15096-0001, http://www.sae.org.
6
Standards volume information, refer to the standard’s Document Summary page on AvailablefromAmericanSocietyforNondestructiveTesting(ASNT),P.O.Box
the ASTM website. 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.
*ASummary 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 ----------------------
A790/A790M – 09
4. Ordering Information 5. General Requirements
4.1 Orders for material under this specification should
5.1 Material furnished under this
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:A 790/A 790M–08a Designation: A790/A790M – 09
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Pipe
This standard is issued under the fixed designationA790/A790M; 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 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 Optionalsupplementaryrequirementsareprovidedforpipewhenagreaterdegreeoftestingisdesired.Thesesupplementary
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 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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.
2. Referenced Documents
3
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A923 Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E213 Practice for Ultrasonic Testing of Metal Pipe and Tubing
E309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
E381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E426 Practice for Electromagnetic (Eddy-Current) Examination of Seamless andWeldedTubular Products,Austenitic Stainless
Steel and Similar Alloys
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
4
2.2 ANSI Standards:
B1.20.1 Pipe Threads, General Purpose
B36.10 Welded and Seamless Wrought Steel Pipe
B36.19 Stainless Steel Pipe
5
2.3 SAE Standard:
SAE J 1086
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.10
on Stainless and Alloy Steel Tubular Products.
Current edition approved Oct.Aug. 1, 2008.2009. Published November 2008.September 2009. Originally approved in 1981. Last previous edition approved in 2008 asA
790/A 790M–08. A790/A790M – 08a. DOI: 10.1520/A0790_A0790M-09.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA–790 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
*ASummary 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 ----------------------
A790/A790M – 09
6
2.4 Other Standard:
SNT-TC-1A Personal Qualification and Certification in Nondestructive Testing
2.5 AWS Standard
A5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Electrodes
3. Terminology
3.1 Definitions—For definitions of terms used in this specification refer to
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:A790/A790M–08a Designation: A 790/A 790M – 09
Standard Specification for
Seamless and Welded Ferritic/Austenitic Stainless Steel
1
Pipe
This standard is issued under the fixed designationA 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
2
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 Optionalsupplementaryrequirementsareprovidedforpipewhenagreaterdegreeoftestingisdesired.Thesesupplementary
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 Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunits
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.
2. Referenced Documents
3
2.1 ASTM Standards:
A 370 Test Methods and Definitions for Mechanical Testing of Steel Products
A 923 Test Methods for Detecting Detrimental Intermetallic Phase in Duplex Austenitic/Ferritic Stainless Steels
A 941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A 999/A 999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E 213 Practice for Ultrasonic Testing of Metal Pipe and Tubing
E 309 Practice for Eddy-Current Examination of Steel Tubular Products Using Magnetic Saturation
E 381 Method of Macroetch Testing Steel Bars, Billets, Blooms, and Forgings
E 426 PracticeforElectromagnetic(Eddy-Current)ExaminationofSeamlessandWeldedTubularProducts,AusteniticStainless
Steel and Similar Alloys
E 527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
4
2.2 ANSI Standards:
B1.20.1 Pipe Threads, General Purpose
B36.10 Welded and Seamless Wrought Steel Pipe
B36.19 Stainless Steel Pipe
5
2.3 SAE Standard:
SAE J 1086
1
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of SubcommitteeA01.10
on Stainless and Alloy Steel Tubular Products .
Current edition approved Oct.Aug. 1, 2008.2009. Published November 2008.September 2009. Originally approved in 1981. Last previous edition approved in 2008 as
A 790/A 790M – 08a.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA–790 in Section II of that Code.
3
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.
*ASummary 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 ----------------------
A 790/A 790M – 09
6
2.4 Other Standard:
SNT-TC-1A Personal Qualification and Certification in Nondestructive Testing
2.5 AWS Standard
A5.9 Corrosion-Resisting Chromium and Chromium-Nickel Steel Welding Rods and Electrodes
3. Terminology
3.1 Definitions—For definitions of terms used in this specification refer to Terminology A 941.
4. Ordering Informa
...
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