Apparatus and method for welding duplex stainless steel

Arc welding of duplex stainless steel tubing is accomplished using a non-pulsed electric arc and a high refractory weld flux. Weld beads, uniform throughout their lengths, and having a duplex phase structure and desirable profile are produced by single pass orbital welding, even if the wall thicknes...

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Bibliographische Detailangaben
Hauptverfasser: Ames, Nathan D, Marshall, Andrew P, Sapsford, Charles, Wolf, Edwin L
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Arc welding of duplex stainless steel tubing is accomplished using a non-pulsed electric arc and a high refractory weld flux. Weld beads, uniform throughout their lengths, and having a duplex phase structure and desirable profile are produced by single pass orbital welding, even if the wall thickness of the duplex tubing exceeds 2 mm.