HIGH STRENGTH STEEL SHEET FOR HIGH HEAT INPUT WELDING

To provide a high strength steel sheet for high heat input welding based on new guidelines on component design.SOLUTION: A high strength steel sheet for high heat input welding contains, in mass%, C: 0.03-0.08%, Mn: 0.3-1.6%, Cu: 0.6-2.0%, Ni: 1.3-7.0%, Ti: 0.003-0.015%, Al: 0.03-0.10%, Cr: 0-1.1%,...

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Bibliographische Detailangaben
Hauptverfasser:	HONMA RYUICHI, FURUKAWA HIROTSUGU, URAKAWA TOMOKI, TAKAHIRA NOBUYUKI, SHINOHARA YASUHIRO, OTOMATSU YUKI, WATABE YOSHIYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	To provide a high strength steel sheet for high heat input welding based on new guidelines on component design.SOLUTION: A high strength steel sheet for high heat input welding contains, in mass%, C: 0.03-0.08%, Mn: 0.3-1.6%, Cu: 0.6-2.0%, Ni: 1.3-7.0%, Ti: 0.003-0.015%, Al: 0.03-0.10%, Cr: 0-1.1%, Mo: 0-1.0%, Nb: 0-0.03%, V: 0-0.10%, W: 0-1.0%, B: 0-0.0050%, Ca: 0-0.005%, Mg: 0-0.005%, REM: 0-0.005%, Zr: 0-0.005%, the balance being Fe and impurities, Ti/N of 3.0 or less, DI(inch) of 10.0-21.0, CeqWES of 0.500-0.700% or more, and CeqIIW of 0.650-0.890%.SELECTED DRAWING: None 【課題】新たな成分設計の指針に基づいて、大入熱溶接用高強度鋼板を提供する。【解決手段】本発明の大入熱溶接用高強度鋼板は、質量％で、Ｃ：０．０３〜０．０８％、Ｍｎ：０．３〜１．６％、Ｃｕ：０．６〜２．０％、Ｎｉ：１．３〜７．０％、Ｔｉ：０．００３〜０．０１５％、Ａｌ：０．０３〜０．１０％、Ｃｒ：０〜１．１％、Ｍｏ：０〜１．０％、Ｎｂ：０〜０．０３％、Ｖ：０〜０．１０％、Ｗ：０〜１．０％、Ｂ：０〜０．００５０％、Ｃａ：０〜０．００５％、Ｍｇ：０〜０．００５％、ＲＥＭ：０〜０．００５％、Ｚｒ：０〜０．００５％、を含有し、残部がＦｅ及び不純物からなり、Ｔｉ／Ｎが３．０以下であり、ＤＩ（ｉｎｃｈ）が１０．０〜２１．０であり、ＣｅｑＷＥＳが０．５００〜０．７００％以上であり、ＣｅｑＩＩＷが０．６５０〜０．８９０％である。【選択図】なし