ASTM A1123/A1123M-22
(Specification)Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube
Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube
SCOPE
1.1 This specification covers laser beam or laser hybrid welded, built-up, carbon steel, sharp-cornered profiles (SCP) square, rectangular, or custom shape structural tubing for welded, riveted, or bolted construction. This specification does not include weathering steels, since most cannot be welded by these methods. SCP tubing is used in, but not limited to, the following applications: buildings and structures, including architecturally exposed steel structures (AESS); architectural steel profiles such as curtain wall, staircases, and others; industrial; and general structural applications.
Note 1: There is no standard for other sharp-cornered laser or laser hybrid welded carbon steel structural shapes, but Appendix X1 provides guidance on their specification.
1.2 The SCP structural tubing sections produced to this specification have a perimeter of 2845 mm [112 in.] or less and wall thickness of between 4.76 and 38.1 mm [3/16 and 1.50 in.]. The thicknesses of walls within a specified SCP tube shape can be different.
1.3 This specification establishes the minimum requirements for manufacturing of built-up, SCP laser, and laser hybrid welded carbon steel tube sections and requires the welds to, at a minimum, match the tensile and yield strength of the base metal.
Note 2: Product covered by this specification is manufactured in small lots on dedicated production lines. Product quality requirements are ensured through welding procedure qualification of the manufacturing facility in accordance with AWS, ISO, or CSA requirements. In addition to the standard weld inspection and weld quality requirements, the purchaser can specify higher levels of weld inspection; Supplementary S1 tensile, S2 bend, and S3 Charpy V- notch lot testing; and other requirements.
Note 3: Because of the varying requirements of the end-use applications, four different length tolerance and weld inspection levels may be specified.
1.4 This specification uses Specifications A36/A36M, A572/A572M, EN 10025-2, or EN 10025-3 for the chemical and mechanical requirements of the designated strength grade.
1.5 The text of this specification contains notes and footnotes that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.
1.6 Units—This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. 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 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.
1.7 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.
1.8 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.
General Information
Standards Content (Sample)
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:A1123/A1123M −22
Standard Specification for
Carbon Steel Laser and Laser-Hybrid Welded, Sharp-
Cornered Profile (SCP), Built-Up, Square, Rectangular, and
1
Special Shape Tube
This standard is issued under the fixed designation A1123/A1123M; 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 1.4 This specification uses Specifications A36/A36M,
A572/A572M, EN 10025-2, or EN 10025-3 for the chemical
1.1 This specification covers laser beam or laser hybrid
and mechanical requirements of the designated strength grade.
welded, built-up, carbon steel, sharp-cornered profiles (SCP)
1.5 The text of this specification contains notes and foot-
square, rectangular, or custom shape structural tubing for
welded, riveted, or bolted construction.This specification does notes that provide explanatory material. Such notes and
footnotes, excluding those in tables and figures, do not contain
not include weathering steels, since most cannot be welded by
these methods. SCP tubing is used in, but not limited to, the any mandatory requirements.
following applications: buildings and structures, including
1.6 Units—This specification is expressed in both inch-
architecturally exposed steel structures (AESS); architectural
poundunitsandinSIunits;however,unlessthepurchaseorder
steel profiles such as curtain wall, staircases, and others;
or contract specifies the applicable M specification designation
industrial; and general structural applications.
(SIunits),theinch-poundunitsshallapply.Thevaluesstatedin
eitherinch-poundunitsorSIunitsaretoberegardedseparately
NOTE 1—There is no standard for other sharp-cornered laser or laser
hybrid welded carbon steel structural shapes, but Appendix X1 provides asstandard.Withinthetext,theSIunitsareshowninbrackets.
guidance on their specification.
Thevaluesstatedineachsystemmaynotbeexactequivalents;
therefore,eachsystemshallbeusedindependentlyoftheother.
1.2 The SCP structural tubing sections produced to this
Combiningvaluesfromthetwosystemsmayresultinnoncon-
specificationhaveaperimeterof2845mm[112in.]orlessand
formance with the standard.
wall thickness of between 4.76 and 38.1 mm [3/16 and 1.50
in.].ThethicknessesofwallswithinaspecifiedSCPtubeshape
1.7 This standard does not purport to address all of the
can be different.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
1.3 This specification establishes the minimum require-
priate safety, health, and environmental practices and deter-
ments for manufacturing of built-up, SCP laser, and laser
mine the applicability of regulatory limitations prior to use.
hybridweldedcarbonsteeltubesectionsandrequiresthewelds
1.8 This international standard was developed in accor-
to, at a minimum, match the tensile and yield strength of the
dance with internationally recognized principles on standard-
base metal.
ization established in the Decision on Principles for the
NOTE2—Productcoveredbythisspecificationismanufacturedinsmall
Development of International Standards, Guides and Recom-
lots on dedicated production lines. Product quality requirements are
mendations issued by the World Trade Organization Technical
ensured through welding procedure qualification of the manufacturing
Barriers to Trade (TBT) Committee.
facility in accordance with AWS, ISO, or CSA requirements. In addition
to the standard weld inspection and weld quality requirements, the
purchasercanspecifyhigherlevelsofweldinspection;SupplementaryS1
2. Referenced Documents
tensile, S2 bend, and S3 Charpy V- notch lot testing; and other require-
2
2.1 ASTM Standards:
ments.
A36/A36MSpecification for Carbon Structural Steel
NOTE 3—Because of the varying requirements of the end-use
applications, four different length tolerance and weld inspection levels A370Test Methods and Definitions for Mechanical Testing
may be specified.
of Steel Products
A572/A572MSpecification for High-Strength Low-Alloy
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
2
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee For referenced ASTM standards, visit the ASTM website, www.astm.org, or
A01.09 on Carbon Steel Tubular Products. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Nov. 1, 2022. Published December 2022. DOI: Standards volume information, refer to the standard’s Document Summar
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