Steel plate having welding joint with excellent tenacity and manufacturing method thereof

The invention discloses a steel board, which comprises the following parts: 0.02-0.12% C, 0.002-0.010% N, 0.005-0.025% Ti, 0.003-0.025% Nb, wherein the Ti nitrate and Nb carbonitride is evolved and dispersed over 100©÷/mm2; the adaptor of steel board possesses excellent flexibility.

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Bibliographische Detailangaben
1. Verfasser:	OKANO SHIGEO
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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a steel board, which comprises the following parts: 0.02-0.12% C, 0.002-0.010% N, 0.005-0.025% Ti, 0.003-0.025% Nb, wherein the Ti nitrate and Nb carbonitride is evolved and dispersed over 100©÷/mm2; the adaptor of steel board possesses excellent flexibility.