MANUFACTURE OF 2CR MATERIAL FOR WELDED CAN WITH SUPERIOR WORKABILITY INTO FLANGE

PURPOSE:To obtain 2CR material for a welded can with superior workability into a flange by hot rolling an Mn steel having a restricted C content, specifying the finish rolling temp., and coiling or soaking and holding the hot rolled steel at a prescribed temp. CONSTITUTION:A steel consisting of 0.6-...

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Hauptverfasser:	ASANO HIDEJIROU, ARAI SHINICHI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Zusammenfassung:	PURPOSE:To obtain 2CR material for a welded can with superior workability into a flange by hot rolling an Mn steel having a restricted C content, specifying the finish rolling temp., and coiling or soaking and holding the hot rolled steel at a prescribed temp. CONSTITUTION:A steel consisting of 0.6-1.5wt% Mn and the balance Fe with inevitable impurities is hot rolled. The hot finish rolling is carried out at a temp. below the A3 point, and the hot rolled steel is coiled at >=600 deg.C or soaked and held at the temp. By the treatment, the grains after cold rolling and annealing are coarsened, and the softening of the material during welding is effectively inhibited. By this method, 2CR material for a welded can with superior workability into a flange is obtd.