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4. NATG

DIN Standards Committee Technical Fundamentals

Overview

This International Standard provides a classification system for tubular cored electrodes in terms of tensile properties, impact properties, chemical composition of the all-weld metal, type of electrode core, shielding gas, and welding position. The ratio of yield to tensile strength of weld metal is generally higher than that of the parent metal. Matching weld metal yield strength to parent metal yield strength will not necessarily ensure that the weld metal tensile strength matches that of the parent metal. Where the application requires matching tensile strengths, selection of consumables is made by reference to column 3 of Table 1A or Table 1B. Of note is that the mechanical properties of all-weld metal test specimens used to classify the tubular cored electrodes will vary from those obtained in production joints because of the differences in welding procedure such as electrode size, width of weave, welding position, and parent metal composition. The classification in accordance with system A is mainly based on EN 758:1997 "Welding consumables - Tubular cored electrodes for metal arc welding with and without a gas shield of non-alloy and fine grain steels - Classification". The classification in accordance with system B is mainly based upon standards used around the Pacific Rim. The committee responsible for this standard is NA 092-00-03 AA "Schweißzusätze (DVS AG W 5)" ("Welding consumables (DVS AG W5)") at DIN Standards Committee Welding and allied processes (NAS).

Document: references other documents

Document: referenced in other documents

Responsible national committee

NA 092-00-03 AA - Welding consumables (DVS AG W 5)  

Responsible european committee

CEN/TC 121/WG 3 - Welding consumables