NON-AGING TYPE COLD ROLLED STEEL SHEET WITH HIGH YIELD RATIO AND PROCESS FOR PRODUCING THE SAME

NON-AGING TYPE COLD ROLLED STEEL SHEET WITH HIGH YIELD RATIO AND PROCESS FOR PRODUCING THE SAME

A non-aging type cold rolled steel sheet capable of enhancing yield strength and lowering in-plane anisotropy by fine MnS precipitates and AlN precipitates and a method for manufacturing the same are provided. A non-aging type cold rolled steel sheet with high yield ratio comprises, by weight percen...

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Hauptverfasser: JIN, HYEON JUN, YOON, JEONG BONG
Format: Patent
Sprache:eng
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ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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YOON, JEONG BONG
description A non-aging type cold rolled steel sheet capable of enhancing yield strength and lowering in-plane anisotropy by fine MnS precipitates and AlN precipitates and a method for manufacturing the same are provided. A non-aging type cold rolled steel sheet with high yield ratio comprises, by weight percent, 0.005% or less of C, 0.01 to 0.3% of Mn, 0.005 to 0.08% of S, 0.1% or less of Al, 0.004 to 0.02% of N, 0.2% or less of P, 0.0001 to 0.002% of B and 0.005 to 0.15% of Ti with the balance being Fe and other inevitable impurities, wherein the Mn, S, Ti, N and C satisfy relational expressions of 1
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A non-aging type cold rolled steel sheet with high yield ratio comprises, by weight percent, 0.005% or less of C, 0.01 to 0.3% of Mn, 0.005 to 0.08% of S, 0.1% or less of Al, 0.004 to 0.02% of N, 0.2% or less of P, 0.0001 to 0.002% of B and 0.005 to 0.15% of Ti with the balance being Fe and other inevitable impurities, wherein the Mn, S, Ti, N and C satisfy relational expressions of 1<=(Mn/55)/(S^*/32)<=30, 1<=(Al/27)/(N^*/14)<=10 and 0.8<=(Ti^*/48)/(C/12)<=5.0, wherein S^*=S-0.8Î(Ti-0.8Î(48/14)ÎN)Î(32/48), N^*=N-0.8Î(Ti-0.8Î(48/32)ÎS))Î(14/48) and Ti^*=Ti-0.8Î((48/14)ÎN+(48/32)ÎS), and wherein MnS precipitates and AlN precipitates have an average size of 0.2 mum or less.]]></description><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2006</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&amp;date=20061109&amp;DB=EPODOC&amp;CC=KR&amp;NR=20060115626A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20061109&amp;DB=EPODOC&amp;CC=KR&amp;NR=20060115626A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JIN, HYEON JUN</creatorcontrib><creatorcontrib>YOON, JEONG BONG</creatorcontrib><title>NON-AGING TYPE COLD ROLLED STEEL SHEET WITH HIGH YIELD RATIO AND PROCESS FOR PRODUCING THE SAME</title><description><![CDATA[A non-aging type cold rolled steel sheet capable of enhancing yield strength and lowering in-plane anisotropy by fine MnS precipitates and AlN precipitates and a method for manufacturing the same are provided. A non-aging type cold rolled steel sheet with high yield ratio comprises, by weight percent, 0.005% or less of C, 0.01 to 0.3% of Mn, 0.005 to 0.08% of S, 0.1% or less of Al, 0.004 to 0.02% of N, 0.2% or less of P, 0.0001 to 0.002% of B and 0.005 to 0.15% of Ti with the balance being Fe and other inevitable impurities, wherein the Mn, S, Ti, N and C satisfy relational expressions of 1<=(Mn/55)/(S^*/32)<=30, 1<=(Al/27)/(N^*/14)<=10 and 0.8<=(Ti^*/48)/(C/12)<=5.0, wherein S^*=S-0.8Î(Ti-0.8Î(48/14)ÎN)Î(32/48), N^*=N-0.8Î(Ti-0.8Î(48/32)ÎS))Î(14/48) and Ti^*=Ti-0.8Î((48/14)ÎN+(48/32)ÎS), and wherein MnS precipitates and AlN precipitates have an average size of 0.2 mum or less.]]></description><subject>ALLOYS</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>METALLURGY</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2006</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjLEKwjAUALM4iPoPD5wLacXuIXlNgjEpyRPpFIrESbRQ_x-p-AFOd8Nxa5Z98JXQ1mugoUeQwSmIwTlUkAjRQTKIBFdLBozVBgaLSyLIBhBeQR-DxJSgC3FxdZHfmUFI4oxbtrqPj7nsftywfYckTVWmVy7zNN7Ks7zzKTact7yuj23TisN_1QfNsDNz</recordid><startdate>20061109</startdate><enddate>20061109</enddate><creator>JIN, HYEON JUN</creator><creator>YOON, JEONG BONG</creator><scope>EVB</scope></search><sort><creationdate>20061109</creationdate><title>NON-AGING TYPE COLD ROLLED STEEL SHEET WITH HIGH YIELD RATIO AND PROCESS FOR PRODUCING THE SAME</title><author>JIN, HYEON JUN ; YOON, JEONG BONG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_KR20060115626A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2006</creationdate><topic>ALLOYS</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>METALLURGY</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>JIN, HYEON JUN</creatorcontrib><creatorcontrib>YOON, JEONG BONG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JIN, HYEON JUN</au><au>YOON, JEONG BONG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>NON-AGING TYPE COLD ROLLED STEEL SHEET WITH HIGH YIELD RATIO AND PROCESS FOR PRODUCING THE SAME</title><date>2006-11-09</date><risdate>2006</risdate><abstract><![CDATA[A non-aging type cold rolled steel sheet capable of enhancing yield strength and lowering in-plane anisotropy by fine MnS precipitates and AlN precipitates and a method for manufacturing the same are provided. A non-aging type cold rolled steel sheet with high yield ratio comprises, by weight percent, 0.005% or less of C, 0.01 to 0.3% of Mn, 0.005 to 0.08% of S, 0.1% or less of Al, 0.004 to 0.02% of N, 0.2% or less of P, 0.0001 to 0.002% of B and 0.005 to 0.15% of Ti with the balance being Fe and other inevitable impurities, wherein the Mn, S, Ti, N and C satisfy relational expressions of 1<=(Mn/55)/(S^*/32)<=30, 1<=(Al/27)/(N^*/14)<=10 and 0.8<=(Ti^*/48)/(C/12)<=5.0, wherein S^*=S-0.8Î(Ti-0.8Î(48/14)ÎN)Î(32/48), N^*=N-0.8Î(Ti-0.8Î(48/32)ÎS))Î(14/48) and Ti^*=Ti-0.8Î((48/14)ÎN+(48/32)ÎS), and wherein MnS precipitates and AlN precipitates have an average size of 0.2 mum or less.]]></abstract><oa>free_for_read</oa></addata></record>
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subjects ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title NON-AGING TYPE COLD ROLLED STEEL SHEET WITH HIGH YIELD RATIO AND PROCESS FOR PRODUCING THE SAME
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