STEEL FOR MACHINE STRUCTURE USE EXCELLENT IN MACHINABILITY

PURPOSE:To provide steel for machine structure use in which the addition effect of In is enough demonstrated and which is excellent in machinability, to prevent grain boundary segregation of In with In addition and to restrain the deterioration of hot workability and fatigue strength as small as pos...

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Bibliographische Detailangaben
Hauptverfasser:	IDOJIRI HIROSHI, KAKOU HIROSHI, TAKESHITA HIDEO
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide steel for machine structure use in which the addition effect of In is enough demonstrated and which is excellent in machinability, to prevent grain boundary segregation of In with In addition and to restrain the deterioration of hot workability and fatigue strength as small as possible. CONSTITUTION:This steel consists of 0.05-0.6% C, 0.03-4% Si, 0.1-2% Mn, 0.005-0.12% S, 0.001-0.1% In, 0.003-0.02% N, as necessary, 0.0005-0.03% B, by restraining to