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.degree.F. The wire consists essentially of 2.0 to 3.5 wt.% manganese; 0.01 wt.% to 1.5 wt.% silicon; .05 to 0.15 wt....

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Bibliographische Detailangaben
Hauptverfasser:	NAKABAYASHI, MASAHIRO, LEVINE, ERNEST N, BAUMANN, STEPHEN F, COLESS, THOMAS L, UTTRACHI, GERALD
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ALLOYS CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING FERROUS OR NON-FERROUS ALLOYS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS 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.degree.F. The wire consists essentially of 2.0 to 3.5 wt.% manganese; 0.01 wt.% to 1.5 wt.% silicon; .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 .3 wt.% up to 1.5 wt.%. The flux used with these wires is preferably acidic in nature.