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Welding consumables. Covered electrodes for manual metal arc welding of high-strength steels. Classification Ingestion-build-266356 BS 4856-3 is the third1 Scope This document specifies requirements for classification of covered electrodes and deposited metal in the as welded condition and in the post weld heat treated condition for manual metal arc welding of high strength steels with a minimum yield strength greater than 500 MPa or a minimum tensile strength greater than 570 MPa. This document is a combined specification providing a classification utilizing a system based on the yield strength and an