ASTM A376/A376M-06
(Specification)Standard Specification for Seamless Austenitic Steel Pipe for High-Temperature Central-Station Service
Standard Specification for Seamless Austenitic Steel Pipe for High-Temperature Central-Station Service
ABSTRACT
This specification covers seamless austenitic steel pipe intended for high-temperature central-station service. The grades covered are five H grades and two nitrogen grades. Pipe may be either hot finished or cold finished, with a suitable finishing treatment. All pipes shall be furnished in the heat-treated condition unless the order specifically states that no final heat treatment shall be applied. Tensile tests, hydrostatic test, nondestructive electric tests, ultrasonic tests, eddy-current tests, tension tests, and flattening tests shall be made to conform to the requirements specified.
SCOPE
1.1 This specification covers seamless austenitic steel pipe intended for high-temperature central-station service. Among the grades covered are five H grades and two nitrogen grades (304N and 316N) that are specifically intended for high-temperature service.
1.2 Optional supplementary requirements (S1 through S10) are provided. These supplementary requirements specify additional tests that will be made only when stated in the order, together with the number of such tests required.
1.3 Grades TP321 and TP321H have lower strength requirements for nominal wall thicknesses greater than 3/8 in. [9.5 mm].
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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Used in USDOE-NE standards
Designation: A376/A376M – 06
Standard Specification for
Seamless Austenitic Steel Pipe for High-Temperature
1
Central-Station Service
This standard is issued under the fixed designationA376/A376M; 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* Alloy and Stainless Steel Pipe
2
E112 Test Methods for Determining Average Grain Size
1.1 This specification covers seamless austenitic steel pipe
E213 Practice for Ultrasonic Testing of Metal Pipe and
intended for high-temperature central-station service. Among
Tubing
the grades covered are five H grades and two nitrogen grades
E381 Method of Macroetch Testing Steel Bars, Billets,
(304N and 316N) that are specifically intended for high-
Blooms, and Forgings
temperature service.
E426 Practice for Electromagnetic (Eddy-Current) Exami-
1.2 Optional supplementary requirements (S1 through S10)
nation of Seamless and Welded Tubular Products, Auste-
are provided. These supplementary requirements specify addi-
nitic Stainless Steel and Similar Alloys
tional tests that will be made only when stated in the order,
2.2 Other Standards:
together with the number of such tests required.
SNT-TC-1A Personnel Qualification and Certification in
1.3 GradesTP321 andTP321H have lower strength require-
4
Nondestructive Testing
3
ments for nominal wall thicknesses greater than ⁄8 in. [9.5
mm].
3. Terminology
1.4 The values stated in either inch-pound units or SI units
3.1 Definitions—For definitions of terms used in this speci-
are to be regarded separately as standard. Within the text, the
fication, refer to Terminology A941.
SI units are shown in brackets. The values stated in each
system are not exact equivalents; therefore, each system must
4. Ordering Information
be used independently of the other. Combining values from the
4.1 Orders for material to this specification should include
two systems may result in nonconformance with the specifi-
the following, as required to describe the desired material
cation. The inch-pound units shall apply unless the “M”
adequately:
designation of this specification is specified in the order.
4.1.1 Quantity (feet, centimetres, or number of lengths),
NOTE 1—The dimensionless designator NPS (nominal pipe size) has
4.1.2 Name of material (seamless austenitic steel pipe),
been substituted in this standard for such traditional terms as “nominal
4.1.3 Grade (Table 1),
diameter,” “size,” and “nominal size.”
4.1.4 Size (nominal size, or outside diameter and schedule
number or average wall thickness),
2. Referenced Documents
4.1.5 Lengths (specific or random), (Permissible Variations
3
2.1 ASTM Standards:
in Length Section of Specification A999/A999M),
A262 Practices for Detecting Susceptibility to Intergranular
4.1.6 End finish (Ends Section of Specification A999/
Attack in Austenitic Stainless Steels
A999M),
A941 Terminology Relating to Steel, Stainless Steel, Re-
4.1.7 Optional requirements (Section 9) (see Hydrostatic
lated Alloys, and Ferroalloys
Test Requirements Section and the Permissible Variation in
A999/A999M Specification for General Requirements for
Weight for Seamless Pipe Section for weighing individual
lengths,ofSpecificationA999/A999M),(see10.6,repairingby
1
welding; 14.3, die stamping),
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
4.1.8 Test report required (Certification Section of Specifi-
A01.10 on Stainless and Alloy Steel Tubular Products.
cation A999/A999M),
Current edition approved March 1, 2006. Published April 2006. Originally
4.1.9 Specification designation, and
approved in 1954. Last previous edition approved in 2004 as A376/A376M – 04.
DOI: 10.1520/A0376_A0376M-06. 4.1.10 Special requirements or any supplementary require-
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
ments selected, or both.
cation SA-376 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
4
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.
*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 ----------------------
A376/A376M – 06
TABLE 1 Chemical
...
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.
Used in USDOE-NE standards
Designation:A 376/A 376M–04 Designation: A376/A376M – 06
Standard Specification for
Seamless Austenitic Steel Pipe for High-Temperature
1
Central-Station Service
This standard is issued under the fixed designationA376/A376M; 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 austenitic steel pipe intended for high-temperature central-station service. Among the
grades covered are five H grades and two nitrogen grades (304N and 316N) that are specifically intended for high-temperature
service.
1.2 Optional supplementary requirements (S1 through S10) are provided. These supplementary requirements specify additional
tests that will be made only when stated in the order, together with the number of such tests required.
3
1.3 Grades TP321 and TP321H have lower strength requirements for nominal wall thicknesses greater than ⁄8 in. [9.5 mm].
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:
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic 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
E112 Test Methods for Determining Average Grain Size
E213 Practice for Ultrasonic ExaminationTesting of Metal Pipe and Tubing
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,Steel and Similar Alloys
2.2 Other Standards:
4
SNT-TC-1A Personnel Qualification and Certification in Nondestructive Testing
3. Terminology
3.1 Definitions—For definitions of terms used in this specification, refer to Terminology A 941A941.
4. Ordering Information
4.1 Ordersformaterialtothisspecificationshouldincludethefollowing,asrequiredtodescribethedesiredmaterialadequately:
4.1.1 Quantity (feet, centimetres, or number of lengths),
4.1.2 Name of material (seamless austenitic steel pipe),
4.1.3 Grade (Table 1),
4.1.4 Size (nominal size, or outside diameter and schedule number or average wall thickness),
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. 1, 2004. Published October 2004. Originally approved in 1954. Last previous edition approved in 2002 as A 376/A 376M–02a.
Current edition approved March 1, 2006. Published April 2006. Originally approved in 1954. Last previous edition approved in 2004 as A376/A376M – 04. DOI:
10.1520/A0376_A0376M-06.
2
For ASME Boiler and Pressure Vessel Code applications see related Specification SA-376 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 the American Society for Nondestructive Testing (ASNT), P.O. 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.
1
---------------------- Page: 1 ----------------------
A376/A376M – 06
TABLE 1 Chemical Requirements
UNS Composition,%
Desig-
Carbon Man- Phos- Sul- Sili- Nickel Chromium Molyb- Tita- Colum- Tan- Nitro- Others
Grade
nation
A
ganese, phorus, fur, con, denum nium bium talum gen
max
...
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