ULTRAHIGH-STEEL Q960E SLAB AND MANUFACTURING METHOD

The invention discloses an ultrahigh steel Q960E thick plate and relates to the field of ultrahigh-strength steel thick plate manufacturing. The ultrahigh steel Q960E thick plate comprises chemical components including, by mass percent, C: 0.15%-0.18%, Si: 0.20%-0.50%, Mn: 0.80%-1.30%, P: ≤0.010%, S...

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Bibliographische Detailangaben
Hauptverfasser:	JIANG, Hui, HOU, Zhonghua, YAN, Qiangjun, WANG, Sheng, ZHANG, Yijie, JIANG, Zaiwei
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The invention discloses an ultrahigh steel Q960E thick plate and relates to the field of ultrahigh-strength steel thick plate manufacturing. The ultrahigh steel Q960E thick plate comprises chemical components including, by mass percent, C: 0.15%-0.18%, Si: 0.20%-0.50%, Mn: 0.80%-1.30%, P: ≤0.010%, S: ≤0.003%, Cr: 0.30%-0.50%, Mo: 0.40%-0.60%, Ni:0.80%-1.0%, Ti: 0.008%-0.030%, Nb: 0.015%-0.050%, B: 0.0008%-0.0025% and the balance: Fe and unavoidable impurities. A design of medium-high carbon and alloying is adopted, controlled rolling and offline heat treatment methods are adopted for assistance and a 90mm thick ultrahigh-strength steel thick plate is provided.