JP2738216B

A Cr-Mo steel pipe having a wall thickness of 5 to 25 mm consisting essentially of 0.03 to 0.10 wt. % C, 0.5 to 1.0 wt. % Si, 0.3 to 0.6 wt. % Mn, 0.02 wt. % or less P, 0.007 wt. % or less S, 1.0 to 1.5 wt. % Cr, 0.45 to 0.65 wt. % Mo, 0.002 to 0.1 wt. % Al, 0.002 to 0.01 wt. % N, and the balance be...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUSHITA AKYOSHI, OYAMA MOTOAKI, NISHINO YUKIO, TAKAMURA TOSHIHIRO
Format:	Patent
Sprache:	eng
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 Cr-Mo steel pipe having a wall thickness of 5 to 25 mm consisting essentially of 0.03 to 0.10 wt. % C, 0.5 to 1.0 wt. % Si, 0.3 to 0.6 wt. % Mn, 0.02 wt. % or less P, 0.007 wt. % or less S, 1.0 to 1.5 wt. % Cr, 0.45 to 0.65 wt. % Mo, 0.002 to 0.1 wt. % Al, 0.002 to 0.01 wt. % N, and the balance being Fe and unavoidable impurities. In the method of welding the Cr-Mo steel pipe, the Cr-Mo steel pipe is welded by shielded metal arc welding without a preheat treatment and/or a post weld heat treatment.