STEEL SHEET HAVING EXCELLENT LOW TEMPERATURE TOUGHNESS IN WELDED JOINT PART

PROBLEM TO BE SOLVED: To provide a steel sheet having low temperature toughness in a welded joint part (such as the vicinity of a welding line at the time of high heat input welding and a two phase region heated part at the time of low heat input welding). SOLUTION: The steel sheet having excellent...

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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 METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator	OKANO SHIGEO
description	PROBLEM TO BE SOLVED: To provide a steel sheet having low temperature toughness in a welded joint part (such as the vicinity of a welding line at the time of high heat input welding and a two phase region heated part at the time of low heat input welding). SOLUTION: The steel sheet having excellent low temperature toughness in a welded joint part contains, by mass, 0.005 to 0.10% C, ≤0.7% Si, 0.5 to 2% Mn, ≤0.1% Al, 0.005 to 0.03% Ti and 0.001 to 0.01% N, and has a microstructure composed of ferrite and the other structure other than the ferrite; wherein, the average carbon content in the other structure is ≤4 times to the carbon concentration in the whole of the steel sheet. COPYRIGHT: (C)2006,JPO&NCIPI
format	Patent
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SOLUTION: The steel sheet having excellent low temperature toughness in a welded joint part contains, by mass, 0.005 to 0.10% C, ≤0.7% Si, 0.5 to 2% Mn, ≤0.1% Al, 0.005 to 0.03% Ti and 0.001 to 0.01% N, and has a microstructure composed of ferrite and the other structure other than the ferrite; wherein, the average carbon content in the other structure is ≤4 times to the carbon concentration in the whole of the steel sheet. 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SOLUTION: The steel sheet having excellent low temperature toughness in a welded joint part contains, by mass, 0.005 to 0.10% C, ≤0.7% Si, 0.5 to 2% Mn, ≤0.1% Al, 0.005 to 0.03% Ti and 0.001 to 0.01% N, and has a microstructure composed of ferrite and the other structure other than the ferrite; wherein, the average carbon content in the other structure is ≤4 times to the carbon concentration in the whole of the steel sheet. 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SOLUTION: The steel sheet having excellent low temperature toughness in a welded joint part contains, by mass, 0.005 to 0.10% C, ≤0.7% Si, 0.5 to 2% Mn, ≤0.1% Al, 0.005 to 0.03% Ti and 0.001 to 0.01% N, and has a microstructure composed of ferrite and the other structure other than the ferrite; wherein, the average carbon content in the other structure is ≤4 times to the carbon concentration in the whole of the steel sheet. COPYRIGHT: (C)2006,JPO&NCIPI</abstract><oa>free_for_read</oa></addata></record>
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subjects	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
title	STEEL SHEET HAVING EXCELLENT LOW TEMPERATURE TOUGHNESS IN WELDED JOINT PART
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