MANUFACTURE OF TS780MPA CLASS STEEL EXCELLENT IN RESISTANCE TO HOT DIP GALVANIZING CRACK

PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel having >=TS780MPa strength and free from the occurrence of galvanizing crack in a weld zone. SOLUTION: A continuously cast slab, having a composition where one or >=2 kinds among 0.04-0.08%, by weight, C, 0.1-0.6% Si, 0.8-1.6%...

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Bibliographische Detailangaben
Hauptverfasser:	WADA NORIKI, ARAKAWA TAKEKAZU, KOJIMA TOSHIFUMI
Format:	Patent
Sprache:	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:	PROBLEM TO BE SOLVED: To provide a method for manufacturing a steel having >=TS780MPa strength and free from the occurrence of galvanizing crack in a weld zone. SOLUTION: A continuously cast slab, having a composition where one or >=2 kinds among 0.04-0.08%, by weight, C, 0.1-0.6% Si, 0.8-1.6% Mn,