Method and wire for submerged arc welding of pipe

A combination of welding wire and welding flux for submerged arc welding of high strength low alloy pipe which require low temperature impact properties of at least 30 ft./lb. at -13 DEG F. The wire consists essentially of 2.0 to 3.5 wt. % manganese; 0.01 wt. % to 1.5 wt. % silicon; 0.05 to 0.15 wt....

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Bibliographische Detailangaben
Hauptverfasser:	COLESS, THOMAS L, UTTRACHI, GERALD D, LEVINE, ERNEST N, BAUMANN, STEPHEN F, NAKABAYASHI, MASAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A combination of welding wire and welding flux for submerged arc welding of high strength low alloy pipe which require low temperature impact properties of at least 30 ft./lb. at -13 DEG F. The wire consists essentially of 2.0 to 3.5 wt. % manganese; 0.01 wt. % to 1.5 wt. % silicon; 0.05 to 0.15 wt. % carbon; balance iron with the proviso that when manganese is greater than 2.5 up to 3.5 wt. % the silicon content is between 0.01 wt. % to 1.5 wt. % and when the manganese content is between 2.0 to 2.5 wt. % the silicon content is greater than 0.3 wt. % up to 1.5 wt. %. The flux used with these wires is preferably acidic in nature.