ASTM A426/A426M-18
(Specification)Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service
Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service
SCOPE
1.1 This specification2 covers centrifugally cast alloy steel pipe intended for use in high-temperature, high-pressure service.
1.2 Several grades of ferritic steels are covered. Their compositions are given in Table 1. (A) Where ellipses appear in this table, there is no requirement, and the element need not be analyzed or reported.(B) All values are maximums unless a range is provided.
1.3 Supplementary Requirements S1 through S12 are provided. The supplementary requirements provide for additional tests of an optional nature and, when desired, shall be so stated in the order (Section 4).
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.4.1 Within the text, the SI units are shown in brackets.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: A426/A426M −18
Standard Specification for
Centrifugally Cast Ferritic Alloy Steel Pipe for High-
1
Temperature Service
This standard is issued under the fixed designationA426/A426M; 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. Referenced Documents
2 3
1.1 This specification covers centrifugally cast alloy steel 2.1 ASTM Standards:
pipe intended for use in high-temperature, high-pressure ser- A370 Test Methods and Definitions for Mechanical Testing
vice. of Steel Products
A609/A609M Practice for Castings, Carbon, Low-Alloy,
1.2 Several grades of ferritic steels are covered. Their
and Martensitic Stainless Steel, Ultrasonic Examination
compositions are given in Table 1.
Thereof
1.3 Supplementary Requirements S1 through S12 are A941 TerminologyRelatingtoSteel,StainlessSteel,Related
Alloys, and Ferroalloys
provided. The supplementary requirements provide for addi-
tional tests of an optional nature and, when desired, shall be so A999/A999M Specification for General Requirements for
stated in the order (Section 4). Alloy and Stainless Steel Pipe
E94/E94M Guide for Radiographic Examination Using In-
1.4 The values stated in either inch-pound units or SI units
dustrial Radiographic Film
are to be regarded separately as standard. The values stated in
E165/E165M Practice for Liquid Penetrant Examination for
each system may not be exact equivalents; therefore, each
General Industry
system shall be used independently of the other. Combining
1
E186 Reference Radiographs for Heavy-Walled (2 to 4 ⁄2 in.
values from the two systems may result in nonconformance
(50.8 to 114 mm)) Steel Castings
with the standard.
E208 Test Method for Conducting Drop-Weight Test to
1.4.1 Within the text, the SI units are shown in brackets.
Determine Nil-Ductility Transition Temperature of Fer-
ritic Steels
1.5 This standard does not purport to address all of the
1
E280 Reference Radiographs for Heavy-Walled (4 ⁄2 to 12
safety concerns, if any, associated with its use. It is the
in. (114 to 305 mm)) Steel Castings
responsibility of the user of this standard to establish appro-
E446 Reference Radiographs for Steel Castings Up to 2 in.
priate safety, health, and environmental practices and deter-
(50.8 mm) in Thickness
mine the applicability of regulatory limitations prior to use.
E709 Guide for Magnetic Particle Testing
1.6 This international standard was developed in accor-
4
2.2 ANSI Standard:
dance with internationally recognized principles on standard-
B46.1 Surface Texture
ization established in the Decision on Principles for the
5
Development of International Standards, Guides and Recom-
2.3 ASME Boiler and Pressure Vessel Code:
mendations issued by the World Trade Organization Technical
Section IX Welding and Brazing Qualifications
Barriers to Trade (TBT) Committee.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel, contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee Standards volume information, refer to the standard’s Document Summary page on
A01.18 on Castings. the ASTM website.
4
Current edition approved May 1, 2018. Published May 2018. Originally Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
approved in 1958. Last previous edition approved in 2013 as A426/A426M – 13. 4th Floor, New York, NY 10036, http://www.ansi.org.
5
DOI: 10.1520/A0426_A0426M-18. Available from American Society of Mechanical Engineers (ASME), ASME
2
For ASME Boiler and Pressure Vessel Code applications, see related Specifi- International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
cation SA-426 in Section II of that Code. www.asme.org.
*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 ----------------------
A426/A426M − 18
A,B
TABLE 1 Composition Requirements
Element, %
UNS
Grade Carbon Manganese Phosphorus Sulfur Silicon Chromium Molybdenum
Number
CP1 J12521 0.25 0.30–0.80 0.030 0.025 0.10–0.50 . 0.44–0.65
CP2 J11547 0.10–0.20 0.30–0.61 0.030 0.025 0.10–0.50 0.50–0.81 0.44–0.65
CP5 J42045 0.20 0.30–0.70 0.030 0.025 0.75 4.00–6.50 0.45–0.65
CP5b J51545 0.15
...
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.
Designation: A426/A426M − 13 A426/A426M − 18
Standard Specification for
Centrifugally Cast Ferritic Alloy Steel Pipe for High-
1
Temperature Service
This standard is issued under the fixed designation A426/A426M; 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 centrifugally cast alloy steel pipe intended for use in high-temperature, high-pressure service.
1.2 Several grades of ferritic steels are covered. Their compositions are given in Table 1.
1.3 Supplementary Requirements S1 through S12 are provided. The supplementary requirements provide for additional tests
of an optional nature and, when desired, shall be so stated in the order (Section 4).
1.4 The values stated in either inch-pound units or SI units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformancenonconformance with the standard.
1.4.1 Within the text, the SI units are shown in brackets.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
3
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A609/A609M Practice for Castings, Carbon, Low-Alloy, and Martensitic Stainless Steel, Ultrasonic Examination Thereof
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E94E94/E94M Guide for Radiographic Examination Using Industrial Radiographic Film
E165E165/E165M Practice for Liquid Penetrant Examination for General Industry
1
E186 Reference Radiographs for Heavy-Walled (2 to 4 ⁄2 in. (50.8 to 114 mm)) Steel Castings
E208 Test Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic Steels
1
E280 Reference Radiographs for Heavy-Walled (4 ⁄2 to 12 in. (114 to 305 mm)) Steel Castings
E446 Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness
E709 Guide for Magnetic Particle Testing
4
2.2 ANSI Standard:
B46.1 Surface Texture
5
2.3 ASME Boiler and Pressure Vessel Code:
Section IX Welding and Brazing Qualifications
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.18
on Castings.
Current edition approved Nov. 1, 2013May 1, 2018. Published November 2013May 2018. Originally approved in 1958. Last previous edition approved in 20112013 as
A426/A426M - 11a.A426/A426M – 13. DOI: 10.1520/A0426_A0426M-13. 10.1520/A0426_A0426M-18.
2
For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-426 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 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 American Society of Mechanical Engineers (ASME), ASME International Headquarters, Two Park Ave., New York, NY 10016-5990, http://
www.asme.org.
*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 ----------------------
A426/A426M − 18
A
TABLE 1 Chemical Requirements
Composition, %
Phos-
UNS Sulfur,
Grade Carbon Manganese phorus, Silicon Chromi
...
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