A4.3:1993-ADD1 STANDARD METHODS FOR DETERMINATION OF THE DIFFUSIBLE HYDROGEN CONTENT OF MARTENSITIC, BAINITIC, AND FERRITIC STEEL WELD METAL PRODUCED BY ARC WELDING
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A standard 25 × 12 × 80 mm test specimen and method of preparation are set forth, along with three standard methods of diffusible hydrogen analysis, mercury displacement, gas chromatography, and standard hot carrier gas extraction method. The methods are
suitable for shielded metal arc welding, gas metal arc welding, flux cored arc welding, and submerged arc welding using welding conditions and electrodes given in several applicable American Welding Society filler metal specifications.
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