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AWS A4.3:2025

Standard Methods for Determination of the Diffusible Hydrogen Content of Martensitic, Bainitic, and Ferritic Steel Weld Metal Produced by Arc Welding

Standard test specimens and method of preparation are set forth, along with standard methods of diffusible hydrogen analysis. The methods are suitable for shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), flux cored arc welding (FCAW), and submerged arc welding (SAW) using welding conditions and electrodes given in several applicable American Welding Society and International Standards Organization filler metal specifications.

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American Welding Society [aws]

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