LEAN DUPLEX STAINLESS STEEL HAVING EXCELLENT BENDING PROCESSABILITY

LEAN DUPLEX STAINLESS STEEL HAVING EXCELLENT BENDING PROCESSABILITY

A lean duplex stainless steel having excellent bending processability is disclosed. According to one embodiment of the present invention, the lean duplex stainless steel comprises, by wt%, 0.01-0.06%of C, 0.2-1.0% of Si, 3.5-6.5% of Mn, 18.5-22.5% of Cr, 0.05-0.25% of N, and the balance of iron (Fe)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM BONG WN, JO GYU JIN, CHAE DONG CHUL
Format: Patent
Sprache:chi ; eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:A lean duplex stainless steel having excellent bending processability is disclosed. According to one embodiment of the present invention, the lean duplex stainless steel comprises, by wt%, 0.01-0.06%of C, 0.2-1.0% of Si, 3.5-6.5% of Mn, 18.5-22.5% of Cr, 0.05-0.25% of N, and the balance of iron (Fe) and other inevitable impurities, wherein Cr + Mn is 26.0-28.5% and Cr/Mn is 3.4-4.1. 公开了具有优异的弯曲加工性的节约型双相不锈钢。根据本发明的个实施方案，所述节约型双相不锈钢以重量％计包含0.01％至0.06％的C、0.2％至1.0％的Si、3.5％至6.5％的Mn、18.5％至22.5％的Cr、0.05％至0.25％的N，以及余量的铁(Fe)和其他不可避免的杂质，其中Cr+Mn为26.0％至28.5％，Cr/Mn为3.4至4.1。