Welding consumables — Covered electrodes for manual metal arc welding of high-strength steels — Classification Published (Edition 4, 2026)

Abstract

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 average impact energy of 47 J of the all-weld metal, or utilizing a system based on the tensile strength and an average impact energy of 27 J of the all-weld metal.

Clauses, subclauses and tables which carry the suffix “System A” are applicable only to covered electrodes classified under the system based on the yield strength and an average impact energy of 47 J of the all-weld metal given in this document.
Clauses, subclauses and tables which carry the suffix “System B” are applicable only to covered electrodes classified under the system based on the tensile strength and an average impact energy of 27 J of the all-weld metal given in this document.
Subclauses and tables which do not have either the suffix “System A” or the suffix “System B” are applicable to all covered electrodes classified under this document.

General information

Status : Published

Publication date : 2026-05

Stage : International Standard published

Edition : 4

Number of pages : 28

ISO

ISO 20271-2:2026

ISO 18275:2026

ISO 13180-1:2026

ISO 20305:2026

ISO 25451:2026

ISO 6123-3:2026

ISO 18954:2026

ISO 29821:2026

ISO 9348:2026

ISO 21319:2026

ISO 6754:2026

ISO 18646-6:2026