STEEL FOR DIE-CASTING MOLD

To provide a steel for a die-casting mold that retains high toughness even when the hardness after tempering is increased.SOLUTION: A steel for a die-casting mold contains, in mass%, 0.35≤C≤0.41, 0.05≤Si≤0.15, 0.70≤Mn≤1.00, 5.60≤Cr≤6.10, 2.40≤Mo≤2.60, 0.60≤V≤0.70, Ni≤0.25, Cu≤0.25, Al≤0.030, N≤0.025...

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Bibliographische Detailangaben
Hauptverfasser:	TENG HUI LIN, TATSUYA MASAKATSU, HIGUCHI SHIGEKI, HASUNO AKIHITO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FOUNDRY MOULDING METALLURGY PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	To provide a steel for a die-casting mold that retains high toughness even when the hardness after tempering is increased.SOLUTION: A steel for a die-casting mold contains, in mass%, 0.35≤C≤0.41, 0.05≤Si≤0.15, 0.70≤Mn≤1.00, 5.60≤Cr≤6.10, 2.40≤Mo≤2.60, 0.60≤V≤0.70, Ni≤0.25, Cu≤0.25, Al≤0.030, N≤0.0250, O≤0.0030, P≤0.030 with the balance being Fe and inevitable impurities.SELECTED DRAWING: None 【課題】調質後の硬さを高めた場合でも高靭性を維持することができるダイカスト金型用鋼を提供する。【解決手段】ダイカスト金型用の鋼は、質量％で０．３５≦Ｃ≦０．４１、０．０５≦Ｓｉ≦０．１５、０．７０≦Ｍｎ≦１．００、５．６０≦Ｃｒ≦６．１０、２．４０≦Ｍｏ≦２．６０、０．６０≦Ｖ≦０．７０、Ｎｉ≦０．２５、Ｃｕ≦０．２５、Ａｌ≦０．０３０、Ｎ≦０．０２５０、Ｏ≦０．００３０、Ｐ≦０．０３０を含有し、残部がＦｅ及び不可避的不純物の組成を有する。【選択図】なし