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1.发明公开HIGH-YIELD-RATIO HIGH-STRENGTH THIN STEEL SHEET AND HIGH-YIELD-RATIO HIGH-STRENGTH HOT-DIP GALVANIZED THIN STEEL SHEET EXCELLING IN WELDABILITY AND DUCTILITY AS WELL AS HIGH-YIELD-RATIO HIGH-STRENGTH ALLOYED HOT-DIP GALVANIZED THIN STEEL SHEET AND PROCESS FOR PRODUCING THE SAME 有权具有高和以优异的焊接性和延展性高强度屈服比具有高和钢高强度屈服比热浸薄钢板以及合金化热浸薄钢板具有高和高强度屈服比及其制造方法
公开(公告)号：EP1681363A4
公开(公告)日：2009-11-25
申请号：EP04773654
申请日：2004-09-30
申请人： NIPPON STEEL CORP
CPC分类号： C22C38/02 , C21D6/005 , C21D8/02 , C21D8/0278 , C21D9/46 , C22C38/04 , C22C38/12 , C23C2/02 , C23C2/26 , Y10T428/12799
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2.发明公开HIGH YOUNG'S MODULUS STEEL PLATE, ZINC HOT DIP GALVANIZED STEEL SHEET USING THE SAME, ALLOYED ZINC HOT DIP GALVANIZED STEEL SHEET, HIGH YOUNG'S MODULUS STEEL PIPE, AND METHOD FOR PRODUCTION THEREOF 有权具有高的杨氏模量FEUERVERVERZINKTE钢板及其用途下钢板，合金化热浸钢板，具有高的杨氏模量的弹性和相关方法的钢管
公开(公告)号：EP1806421A4
公开(公告)日：2008-02-27
申请号：EP05767035
申请日：2005-07-27
申请人： NIPPON STEEL CORP
发明人： SUGIURA NATSUKO , YOSHINAGA NAOKI , HIWATASHI SHUNJI , TAKAHASHI MANABU , HANYA KOJI , UNO NOBUYOSHI , KANNO RYOICHI , MIYASAKA AKIHIRO , SENUMA TAKEHIDE
CPC分类号： C21D9/46 , C22C38/004 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/02 , C23C2/06 , C23C2/28 , Y10T428/12 , Y10T428/1266 , Y10T428/12799
摘要： An embodiment of a high Young's modulus steel sheet, wherein it has a chemical composition, in mass %, that C: 0.0005 to 0.30 %, Si: 2.5 % or less, Mn: 2.7 to 5.0 %, P: 0.15 % or less, S: 0.015 % or less, Mo: 0.15 to 1.5 %, B: 0.0006 to 0.01%, Al: 0.15 % or less, and the balance: Fe and inevitable impurities, and wherein both or any of {110} and {110} in a layer at 1/8 of the thickness of the sheet have a pole density of 10 or more and a Young' modulus in the rolling direction of more than 230 GPa: and another embodiment of a high Young's modulus steel sheet, wherein it has a chemical composition, in mass %, that C: 0.0005 to 0.30 %, Si: 2.5 % or less, Mn: 0.1 to 5.0 %, P: 0.15 % or less, S: 0.015 % or less, Al: 0.15 % or less, N: 0.01 % or less, and further comprises 0.015 to 1.91 % by mass in total of one or more of Mo: 0.005 to 1.5 %, Nb: 0.005 to 0.20 %, Ti: (48/14 X N)% to 0.2 % and B: 0.0001 to 0.01%, and the balance: Fe and inevitable impurities, and wherein {110} and/or {110} in a layer at 1/8 of the thickness of the sheet have a pole density of 10 or more and a Young' modulus in the rolling direction of more than 230 GPa.
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