ASTM A376/A376M-01

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Designation: A 376/A 376M – 01 An American National Standard
Used in USDOE-NE standards
Standard Specification for
Seamless Austenitic Steel Pipe for High-Temperature
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Central-Station Service
This standard is issued under the fixed designation A 376/A 376M; 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 E 213 Practice for Ultrasonic Examination of Metal Pipe
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and Tubing
1.1 This specification covers seamless austenitic steel pipe
E 381 Method of Macroetch Testing Steel Bars, Billets,
intended for high-temperature central-station service. Among
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Blooms, and Forgings
the grades covered are five H grades and two nitrogen grades
E 426 Practice for Electromagnetic (Eddy-Current) Exami-
(304N and 316N) that are specifically intended for high-
nation of Seamless and Welded Tubular Products, Austen-
temperature service.
6
itic Stainless Steel, and Similar Alloys
1.2 Optional supplementary requirements (S1 through S10)
2.2 ASME Boiler and Pressure Vessel Code:
are provided. These supplementary requirements specify addi-
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Section IX Welding Qualifications
tional tests that will be made only when stated in the order,
2.3 Other Standards:
together with the number of such tests required.
SNT-TC-1A Personnel Qualification and Certification in
1.3 Grades TP321 and TP321H have lower strength require-
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3 Nondestructive Testing
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 A 941.
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
2.1 ASTM Standards:
in Length Section of Specification A 999/A 999M),
A 262 Practices for Detecting Susceptibility to Intergranu-
4.1.6 End finish (Ends Section of Specification A 999/
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lar Attack in Austenitic Stainless Steels
A 999M),
A 941 Terminology Relating to Steel, Stainless Steel, Re-
4.1.7 Optional requirements (Section 9) (see Hydrostatic
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lated Alloys, and Ferroalloys
Test Requirements Section and the Permissible Variation in
A 999/A 999M Specification for General Requirements for
Weight for Seamless Pipe Section for weighing individual
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Alloy and Stainless Steel Pipe
lengths, of Specification A 999/A 999M), (see 10.6, repairing
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E 112 Test Methods for Determining Average Grain Size
by welding; 14.2, die stamping),
4.1.8 Test report required (Certification Section of Specifi-
cation A 999/A 999M),
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This specification is under the jurisdiction of ASTM Committee A01 on Steel,
4.1.9 Specification designation, and
Stainless Steel, and Related Alloysand is the direct responsibility of Subcommittee
4.1.10 Special requirements or any supplementary require-
A01.10 on Stainless and Alloy Steel Tubular Products.
Current edition approved Mar. 10, 2001. Published May 2001. Originally ments selected, or both.
published as A 376 – 54 T. Last previous edition A 376/A 376M – 00a.
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For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cation SA-376 in Section II of that Code.
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Annual Book of ASTM Standards, Vol 01.03. Annual Book of ASTM Standards, Vol 03.03.
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Annual Book of ASTM Standards, Vol 01.01. Available from the American Society for Nondestructive Testing, P.O. Box
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Annual Book of ASTM Standards, Vol 03.01. 28518, 1711 Arlington Lane, Columbus, OH 43228-0518.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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A 376/A 376M
TABLE 1 Chemical Requirements
Grade UNS Composition,%
De
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