ASTM A423/A423M-19

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:A423/A423M −19
Standard Specification for
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Seamless and Electric-Welded Low-Alloy Steel Tubes
This standard is issued under the fixed designationA423/A423M; 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* mendations issued by the World Trade Organization Technical
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Barriers to Trade (TBT) Committee.
1.1 This specification covers minimum-wall-thickness,
low-alloy steel tubes for pressure containing parts such as
2. Referenced Documents
economizersorotherapplicationswherecorrosionresistanceis
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2.1 ASTM Standards:
important.
A450/A450M Specification for General Requirements for
1.2 The tubing sizes and thicknesses usually furnished to
Carbon and Low Alloy Steel Tubes
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this specification are ⁄2 to 5 in. [12.7 to 127 mm] in outside
E213 Practice for Ultrasonic Testing of Metal Pipe and
diameter and 0.035 to 0.500 in. [0.9 to 12.7 mm] inclusive, in
Tubing
minimum wall thickness.Tubing having other dimensions may
E273 Practice for Ultrasonic Testing of the Weld Zone of
be furnished, provided such tubes comply with all other
Welded Pipe and Tubing
requirements of this specification.
3. Ordering Information
1.3 Mechanical property requirements do not apply to
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3.1 Orders for material under this specification shall include
tubing smaller than ⁄4 in. [3.2 mm] in inside diameter or 0.015
the following, as required, to describe the desired material
in. [0.4 mm] in thickness.
adequately:
1.4 This specification covers three grades, two types, and
3.1.1 Quantity (feet, metres, or number of lengths),
two manufacture finishes:
3.1.2 Type of material (seamless or electric-resistance-
1.4.1 Grades 1, 2, and 3 are identified in Table 1 (Chemical
welded tubes),
Requirements), and Table 3 (Tensile Requirements),
3.1.3 Grade 1, 2, or 3 (Table 1 and Table 3),
1.4.2 Type (seamless or electric-resistance welded),
3.1.4 Manufacture (hot finished or cold finished),
1.4.3 Manufacture (hot finished or cold finished).
3.1.5 Size (outside diameter and minimum wall thickness),
1.5 Optional supplementary requirements S1 and S2 are
3.1.6 Length (specific or random),
provided and, when desired, shall be so stated in the order.
3.1.7 Required test options (hydrostatic or electric test,
11.7),
1.6 The values stated in either SI units or inch-pound units
3.1.8 Test report required (see Certification Section of
are to be regarded separately as standard. Within the text, the
Specification A450/A450M),
SI units are shown in brackets. The values stated in each
3.1.9 Specification designation (including year of issue),
system may not be exact equivalents; therefore, each system
and
shall be used independently of the other. Combining values
3.1.10 Specialrequirementsandanysupplementaryrequire-
from the two systems may result in non-conformance with the
ments selected.
standard. The inch-pound units shall apply unless the “M”
designation of this specification is specified in the order.
4. Manufacture
1.7 This international standard was developed in accor-
4.1 Tubesmadebytheseamlessprocessmaybehotfinished
dance with internationally recognized principles on standard-
or cold finished.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5. Heat Treatment
5.1 All tubes shall be normalized or given such heat
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This specification is under the jurisdiction of ASTM Committee A01 on Steel, treatment as may be necessary to conform to the requirements
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
of this specification.
A01.09 on Carbon Steel Tubular Products.
Current edition approved Nov. 1, 2019. Published November 2019. Originally
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approved in 1958. Last previous edition approved in 2014 as A423/A423M – 09 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(2014). DOI: 10.1520/A0423_A0423M-19. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-423 in Section II of that Code. the ASTM website.
*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
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A423/A423M−19
TABLE 1 Chemical Requirements TABLE 2 Number
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