AWS A5.23-A5.23M:2011 pdf download.Specification for Low-Alloy Steel Electrodes and Fluxes for Submerged Arc Welding
1. Scope
1.1 This specification prescribes requirements for the classification of carbon steel and low-alloy steel electrodes (both solid and composite) and fluxes for submerged arc welding. Multiple pass flux- electrode classifications include requirements for low-alloy weld metal composition. Two-run fux- electrode classifications, which are also permitted under this specification, have no requirements for weld metal composition. The multiple pass classification of flux- electrode combinations for carbon steel submerged arc welding is not within the scope of this specification but remains with AWS A5. 17/A5.17M, Specification for Carbon Steel Electrodes and Fluxres for Submerged Arc Welding.
1.2 Safety and health issues and concerns are beyond the scope of this standard and, therefore, are not fully addressed herein. Some safety and health information can be found in the nonmandatory Annex Clauses A5 and A 10. Safety and health information is available from other sources, including, but not limited to, ANSI Z49.1, Safety in Welding, Cutting,and Allied Processes, and applicable federal and state regulations.
1.3 This specification makes use of both U.S. Customary Units and the International System of Units (SI). The measurements are not exact equivalents; therefore, each system must be used independently of the other without combining in any way when referring to weld metal properties. The specification with the designation A5.23 uses U.S.Customary Units. The specification A5.23M uses SI units. The latter are shown within brackets[ ] or in appropriate columns in tables and figures. Standard dimensions based on either system may be used for the sizing of electrodes or packaging or both under specification A5.23 or A5.23M.
7.1 Electrodes. Chemical analysis of the electrode is the only test required for classification of a solid electrode under this specification. The chemical analysis of the rod stock from which the solid electrode is made may also be used provided the electrode manufacturing process does not alter the chemical composition. For composite electrodes,chemical analysis of the weld metal produced with the composite electrode and a particular fux is required.
7.2 Fluxes. The tests required for each classification are specified in Table 5. The purpose of these tests is to determine the mechanical properties and soundness of the weld metal. The base metal for test assemblies, the preparations of the test samples, the welding and testing procedures to be employed, and the results required are given in Clauses 9 through 14.
7.3 Flux classification is based upon a 5/32 in [4.0 mm] electrode size as standard. If this size electrode is not manufactured, the closest size shall be used for classification tests (see Table 6, Note d, and Table 7, Note d).AWS A5.23-A5.23M pdf download.