METHOD FOR MANUFACTURING QUENCHED AND TEMPERED STEEL WITH SUPERIOR TENSILE STRENGTH OF AROUND 600MPa AND IMPROVED TOUGHNESS IN WELDED PART
PURPOSE: Provided is a method for manufacturing quenched and tempered steel with superior tensile strength of around 600MPa and improved toughness in welded part. CONSTITUTION: The quenched and tempered steel is manufactured by (i) hot rolling of a steel slab comprising C 0.06-0.12wt.%, Si 0.1-0.5wt...
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| description | PURPOSE: Provided is a method for manufacturing quenched and tempered steel with superior tensile strength of around 600MPa and improved toughness in welded part. CONSTITUTION: The quenched and tempered steel is manufactured by (i) hot rolling of a steel slab comprising C 0.06-0.12wt.%, Si 0.1-0.5wt.%, Mn 1.0-1.6wt.%, Al 0.01-0.08wt.%, Ti 0.005-0.02wt.%, B 0.0003-0.003wt.%, N 0.002-0.008wt.% and two or more metals selected from Cu 0.5wt.% or less, Ni 1.0wt.% or less, Cr 0.5wt.% or less, Mo 0.5wt.% or less, Nb 0.1wt.% or less, V 0.1wt.% or less, Ti/N 1.5-2.5, a balance of Fe and other unavoidable impurities wherein carbon equivalent(Ceq) is 0.32-0.38wt.%; (ii) reheating the slab at a temperature range of Ac3 and 950deg.C followed by water-cooling; (iii) tempering at a temperature range of 500deg.C to Ac1.
본 발명은 인장강도 600MPa급 소입·소려 강에 관한 것이며; 그 목적은 모재의 강도와 인성이 우수하고, 동시에 고능률용접부 인성이 우수한 인장강도 600MPa급 소입소려강 및 그 제조방법을 제공함에 있다. 상기 목적을 달성하기 위한 본 발명은, 중량%로 C:0.06-0.12%, Si:0.1-0.5%, Mn:1.0-1.6%, Al:0.01-0.08%, Ti:0.005-0.02%, B:0.0003-0.003%, N:0.002-0.008%와 여기에 Cu:0.5%이하, Ni:1.0%이하, Cr:0.5%이하, Mo:0.5%이하, Nb:0.1%이하, V:0.1%이하중 선택된 1종 또는 2종 이상을 함유하며, Ti/N:1.5-2.5, 탄소당량(Ceq):0.32-0.38%을 만족하고, 나머지 Fe 및 기타 불가피한 불순물로 조성되는 용접부 인성이 우수한 인장강도 600MPa급 소입·소려 강 그 제조방법에 관한 것을 그 요지로 한다. |
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본 발명은 인장강도 600MPa급 소입·소려 강에 관한 것이며; 그 목적은 모재의 강도와 인성이 우수하고, 동시에 고능률용접부 인성이 우수한 인장강도 600MPa급 소입소려강 및 그 제조방법을 제공함에 있다. 상기 목적을 달성하기 위한 본 발명은, 중량%로 C:0.06-0.12%, Si:0.1-0.5%, Mn:1.0-1.6%, Al:0.01-0.08%, Ti:0.005-0.02%, B:0.0003-0.003%, N:0.002-0.008%와 여기에 Cu:0.5%이하, Ni:1.0%이하, Cr:0.5%이하, Mo:0.5%이하, Nb:0.1%이하, V:0.1%이하중 선택된 1종 또는 2종 이상을 함유하며, Ti/N:1.5-2.5, 탄소당량(Ceq):0.32-0.38%을 만족하고, 나머지 Fe 및 기타 불가피한 불순물로 조성되는 용접부 인성이 우수한 인장강도 600MPa급 소입·소려 강 그 제조방법에 관한 것을 그 요지로 한다.</description><edition>7</edition><language>eng ; kor</language><subject>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</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20011117&DB=EPODOC&CC=KR&NR=100311791B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20011117&DB=EPODOC&CC=KR&NR=100311791B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JANG, UNG SEONG</creatorcontrib><creatorcontrib>LEE, MOK YEONG</creatorcontrib><title>METHOD FOR MANUFACTURING QUENCHED AND TEMPERED STEEL WITH SUPERIOR TENSILE STRENGTH OF AROUND 600MPa AND IMPROVED TOUGHNESS IN WELDED PART</title><description>PURPOSE: Provided is a method for manufacturing quenched and tempered steel with superior tensile strength of around 600MPa and improved toughness in welded part. CONSTITUTION: The quenched and tempered steel is manufactured by (i) hot rolling of a steel slab comprising C 0.06-0.12wt.%, Si 0.1-0.5wt.%, Mn 1.0-1.6wt.%, Al 0.01-0.08wt.%, Ti 0.005-0.02wt.%, B 0.0003-0.003wt.%, N 0.002-0.008wt.% and two or more metals selected from Cu 0.5wt.% or less, Ni 1.0wt.% or less, Cr 0.5wt.% or less, Mo 0.5wt.% or less, Nb 0.1wt.% or less, V 0.1wt.% or less, Ti/N 1.5-2.5, a balance of Fe and other unavoidable impurities wherein carbon equivalent(Ceq) is 0.32-0.38wt.%; (ii) reheating the slab at a temperature range of Ac3 and 950deg.C followed by water-cooling; (iii) tempering at a temperature range of 500deg.C to Ac1.
본 발명은 인장강도 600MPa급 소입·소려 강에 관한 것이며; 그 목적은 모재의 강도와 인성이 우수하고, 동시에 고능률용접부 인성이 우수한 인장강도 600MPa급 소입소려강 및 그 제조방법을 제공함에 있다. 상기 목적을 달성하기 위한 본 발명은, 중량%로 C:0.06-0.12%, Si:0.1-0.5%, Mn:1.0-1.6%, Al:0.01-0.08%, Ti:0.005-0.02%, B:0.0003-0.003%, N:0.002-0.008%와 여기에 Cu:0.5%이하, Ni:1.0%이하, Cr:0.5%이하, Mo:0.5%이하, Nb:0.1%이하, V:0.1%이하중 선택된 1종 또는 2종 이상을 함유하며, Ti/N:1.5-2.5, 탄소당량(Ceq):0.32-0.38%을 만족하고, 나머지 Fe 및 기타 불가피한 불순물로 조성되는 용접부 인성이 우수한 인장강도 600MPa급 소입·소려 강 그 제조방법에 관한 것을 그 요지로 한다.</description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2001</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjEEKwjAURLtxIeodPrgWGgqKy7T9aYJNUpMfuyxF4kq0UE_hqQ3iAVwNM29mltlbI0lbg7AONDdB8IqCU6aBc0BTSayBmxoIdYcuGU-ILfSKJPiQIpV2hMarFhNzaJpErADubEi7fZ7rbvxeKN05e0kXZEMjDXoPykCPbZ2yjjtaZ4vbeJ_j5qerbCuQKrmL03OI8zRe4yO-hpNjeV4wdjiysmTFf60P2Iw_2A</recordid><startdate>20011117</startdate><enddate>20011117</enddate><creator>JANG, UNG SEONG</creator><creator>LEE, MOK YEONG</creator><scope>EVB</scope></search><sort><creationdate>20011117</creationdate><title>METHOD FOR MANUFACTURING QUENCHED AND TEMPERED STEEL WITH SUPERIOR TENSILE STRENGTH OF AROUND 600MPa AND IMPROVED TOUGHNESS IN WELDED PART</title><author>JANG, UNG SEONG ; LEE, MOK YEONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR100311791BB13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; kor</language><creationdate>2001</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>JANG, UNG SEONG</creatorcontrib><creatorcontrib>LEE, MOK YEONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JANG, UNG SEONG</au><au>LEE, MOK YEONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR MANUFACTURING QUENCHED AND TEMPERED STEEL WITH SUPERIOR TENSILE STRENGTH OF AROUND 600MPa AND IMPROVED TOUGHNESS IN WELDED PART</title><date>2001-11-17</date><risdate>2001</risdate><abstract>PURPOSE: Provided is a method for manufacturing quenched and tempered steel with superior tensile strength of around 600MPa and improved toughness in welded part. CONSTITUTION: The quenched and tempered steel is manufactured by (i) hot rolling of a steel slab comprising C 0.06-0.12wt.%, Si 0.1-0.5wt.%, Mn 1.0-1.6wt.%, Al 0.01-0.08wt.%, Ti 0.005-0.02wt.%, B 0.0003-0.003wt.%, N 0.002-0.008wt.% and two or more metals selected from Cu 0.5wt.% or less, Ni 1.0wt.% or less, Cr 0.5wt.% or less, Mo 0.5wt.% or less, Nb 0.1wt.% or less, V 0.1wt.% or less, Ti/N 1.5-2.5, a balance of Fe and other unavoidable impurities wherein carbon equivalent(Ceq) is 0.32-0.38wt.%; (ii) reheating the slab at a temperature range of Ac3 and 950deg.C followed by water-cooling; (iii) tempering at a temperature range of 500deg.C to Ac1.
본 발명은 인장강도 600MPa급 소입·소려 강에 관한 것이며; 그 목적은 모재의 강도와 인성이 우수하고, 동시에 고능률용접부 인성이 우수한 인장강도 600MPa급 소입소려강 및 그 제조방법을 제공함에 있다. 상기 목적을 달성하기 위한 본 발명은, 중량%로 C:0.06-0.12%, Si:0.1-0.5%, Mn:1.0-1.6%, Al:0.01-0.08%, Ti:0.005-0.02%, B:0.0003-0.003%, N:0.002-0.008%와 여기에 Cu:0.5%이하, Ni:1.0%이하, Cr:0.5%이하, Mo:0.5%이하, Nb:0.1%이하, V:0.1%이하중 선택된 1종 또는 2종 이상을 함유하며, Ti/N:1.5-2.5, 탄소당량(Ceq):0.32-0.38%을 만족하고, 나머지 Fe 및 기타 불가피한 불순물로 조성되는 용접부 인성이 우수한 인장강도 600MPa급 소입·소려 강 그 제조방법에 관한 것을 그 요지로 한다.</abstract><edition>7</edition><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 | METHOD FOR MANUFACTURING QUENCHED AND TEMPERED STEEL WITH SUPERIOR TENSILE STRENGTH OF AROUND 600MPa AND IMPROVED TOUGHNESS IN WELDED PART |
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