DIN EN ISO 26304:2011-11

This standard specifies requirements for classification of solid wire electrodes, tubular cored electrodes, and electrode-flux combinations (the all-weld metal deposits) in the as-welded condition and in the post-weld heat-treated condition for submerged arc welding of high strength steels with a minimum yield strength greater than 500 MPa or a minimum tensile strength greater than 570 MPa. One flux can be tested and classified with different electrodes. One electrode can be tested and classified with different fluxes. The solid wire electrode is also classified separately based on its chemical composition. The International Standard has been prepared by applying the cohabitation principle, that means, two approaches, subdivided into A and B, are specified for the same subject to be standardized. Approach A mainly reflects the European specifications; approach B mainly reflects the specifications in the Pacific Rim. It shall be noted that it shall be specified according to which approach (A or B) products shall be manufactured or supplied. This standard contains a combined specification providing for classification utilizing a system based upon the yield strength and average impact energy of 47 J for the all-weld metal, or utilizing a system based upon the tensile strength and average impact energy of 27 J for the all-weld metal. With respect to the previous document, the specifications relating to the test pieces have been subdivided into A-side and B-side. The underlying International Standard ISO 26304:2011 has been prepared by ISO/TC 44/SC 3 "Welding consumables", the secretariat of which is held by ANSI (USA) and has been adopted identically as a European draft standard by CEN/TC 121 "Welding" (secretariat: DIN). The responsible German standardization committee is Working Committee NA 092-00-03 AA "Schweißzusätze (DVS AG W 5)" ("Welding consumables (DVS AG W 5)") at NAS.