STEEL SHEET FOR HOT PRESSING USE, METHOD FOR PRODUCING SAME, AND HOT PRESS STEEL SHEET MEMBER

A steel sheet for hot stamping includes a predetermined chemical composition containing: C: 0.08% or more and less than 0.20%; Si: 0.003% to 0.2%; Mn: 1.6% to 3.5%, and others, and further includes asteel structure expressed by, in an area ratio: bainite: 1% to 95%; ferrite: 5% to 94%; and balance:...

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Bibliographische Detailangaben
Hauptverfasser:	HIKIDA KAZUO, TAMAKI AKARI
Format:	Patent
Sprache:	chi ; eng
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:	A steel sheet for hot stamping includes a predetermined chemical composition containing: C: 0.08% or more and less than 0.20%; Si: 0.003% to 0.2%; Mn: 1.6% to 3.5%, and others, and further includes asteel structure expressed by, in an area ratio: bainite: 1% to 95%; ferrite: 5% to 94%; and balance: one or more selected from the group consisting of pearlite, martensite and retained austenite. Whenan Mn content is represented by [Mn], a C content is represented by [C], an expression of [Mn]+6.67[C]-2.73 >= 0 is satisfied. 本发明涉及种热压用钢板，其具有C：0.08％以上且低于0.20％、Si：0.003％～0.2％、Mn：1.6％～3.5％等规定的化学组成，进而以面积率计，具有由贝氏体：1％～95％、铁素体：5％～94％、剩余部分：选自珠光体、马氏体以及残余奥氏体之中的1种或2种以上所表示的钢组织。当将Mn含量表示为[Mn]、C含量表示为[C]时，"[Mn]+6.67×[C]－2.73≥0"成立。