STEEL SHEET FOR HOT PRESSING

PROBLEM TO BE SOLVED: To provide a high strength steel sheet for hot pressing which secures the strength of parts after hot pressing/quenching, and simultaneously has excellent quality in a spot weld zone. SOLUTION: The high strength steel sheet for hot pressing is composed of a steel comprising, by...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	FURUSAKO SEIJI, TOMOKIYO HISAMASA, SUZUKI SHINICHI
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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a high strength steel sheet for hot pressing which secures the strength of parts after hot pressing/quenching, and simultaneously has excellent quality in a spot weld zone. SOLUTION: The high strength steel sheet for hot pressing is composed of a steel comprising, by mass, 0.15 to 0.3% C, 0.005 to 1.0% Si, 0.01 to 3.0% Mn, 0.005 to 0.1% P, ≤0.02% S, 0.01 to 3.0% Al, 0.0005 to 0.01% N, 0.02 to 0.5% Cr, 0.005 to 0.5% Nb, 0.0002 to 0.01% B and 0.05 to 1% Mo, and the balance iron with inevitable impurities, and satisfying the inequality (A), and whose tensile strength after press quenching is ≥1,180 MPa: the inequality (A) is 0.35≥C+Si/30+Mn/20+Cr/20+Mo/15+4×B+2×P+4×S. COPYRIGHT: (C)2007,JPO&INPIT