STEEL FOR NITRIDING AND COLD FORGED/NITRIDED COMPONENT WITH EXCELLENT COLD FORGING AND NITRIDING PROPERTIES

To provide a steel for nitriding and a cold forged/nitrided component which prevent a decrease in core hardness after nitriding while exhibiting excellent cold forgeability.SOLUTION: A nitriding steel for cold forging comprises, in mass%, C: 0.15-0.30%, Si: 0.15-0.40%, Mn: 0.50-1.50%, Cr: 0.50-2.00%...

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Bibliographische Detailangaben
Hauptverfasser:	TOKOKAGE NORIMASA, IDEGUCHI TAKAHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	To provide a steel for nitriding and a cold forged/nitrided component which prevent a decrease in core hardness after nitriding while exhibiting excellent cold forgeability.SOLUTION: A nitriding steel for cold forging comprises, in mass%, C: 0.15-0.30%, Si: 0.15-0.40%, Mn: 0.50-1.50%, Cr: 0.50-2.00%, Mo: 0.02-0.30%, Al: 0.025-0.300%, V: 0.05-0.30%, N: 0.004-0.030%, with the balance being Fe and inevitable impurities, and satisfies formula 1: 0.15