ASTM A1123/A1123M-22
Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube

Standard No.

ASTM A1123/A1123M-22

Release Date

2022

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM A1123/A1123M-22

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 Vnotch 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 inchpound 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.

ASTM A1123/A1123M-22 Referenced Document

• ANSI/AISC 360 Specification for Structural Steel Buildings*， 2024-04-21 Update
• ASTM A36/A36M Standard Specification for Carbon Structural Steel
• ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• ASTM A572/A572M Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel
• ASTM A673/A673M Standard Specification for Sampling Procedure for Impact Testing of Structural Steel
• ASTM A700 Standard Practices for Packaging, Marking, and Loading Methods for Steel Products for Domestic Shipment
• ASTM A941 Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys*， 2024-03-01 Update
• ASTM E1417/E1417M Standard Practice for Liquid Penetrant Testing
• ASTM E164 Standard Practice for Ultrasonic Contact Examination of Weldments
• ASTM E165/E165M Standard Practice for Liquid Penetrant Testing for General Industry
• ASTM E190 Standard Test Method for Guided Bend Test for Ductility of Welds
• ASTM E290 Standard Test Methods for Bend Testing of Material for Ductility
• AWS A3.0M/A3.0 
• CSA W47.1 
• ISO 11666 Non-destructive testing of welds - Ultrasonic testing - Acceptance levels
• ISO 12932 Welding - Laser-arc hybrid welding of steels, nickel and nickel alloys - Quality levels for imperfections
• ISO 13919-1 Electron and laser-beam welded joints — Requirements and recommendations on quality levels for imperfections — Part 1: Steel, nickel, titanium and their alloys
• ISO 15609-4 Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 4: Laser beam welding
• ISO 15609-6 Specification and qualification of welding procedures for metallic materials - Welding procedure specification - Part 6: Laser-arc hybrid welding
• ISO 17638 Non-destructive testing of welds - Magnetic particle testing
• ISO 17640 Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and assessment
• ISO 23277 Non-destructive testing of welds - Penetrant testing - Acceptance levels
• ISO 23278 Non-destructive testing of welds - Magnetic particle testing - Acceptance levels
• ISO 3452-1 Non-destructive testing - Penetrant testing - Part 1: General principles

ASTM A1123/A1123M-22 history

• 2022 ASTM A1123/A1123M-22 Standard Specification for Carbon Steel Laser and Laser-Hybrid Welded, Sharp-Cornered Profile (SCP), Built-Up, Square, Rectangular, and Special Shape Tube