This document specifies requirements for classification of solid wire electrodes, tubular cored electrodes and electrode/ flux combinations (all-weld metal deposits) for submerged arc welding of creep resisting and low-alloy elevated-temperature application steels. One electrode can be tested and classified with different fluxes. The solid wire electrode is also classified separately based on its chemical composition.
This document is a combined specification providing a classification system based on either:
— the chemical composition of the solid wire electrode and all-weld metal deposit or
— the tensile strength of the all-weld metal deposit and the chemical composition of the solid wire electrode and all-weld metal deposit obtained with the electrode/ flux combination.

Clauses, subclauses and tables which carry the suffix letter " A" are applicable only to solid wire electrodes, tubular cored electrodes and all-weld metal deposits classified in accordance with the system based upon chemical composition.
Clauses, subclauses and tables which carry the suffix letter " B" are applicable only to solid wire electrodes, tubular cored electrodes and all-weld metal deposits classified in accordance with the system based upon the tensile strength of all-weld metal deposits and the chemical composition of solid wire electrodes and all-weld metal deposits.
Clauses, subclauses and tables which do not have either the suffix letter " A" or the suffix letter " B" are applicable to all solid wire electrodes, tubular cored electrodes and electrode/ flux combinations classified under this document.