HOT-ROLLED STEEL SHEET
A hot rolled steel sheet having a chemical composition consisting of, in mass %, C: 0.020 - 0.180%, Si: 0.05 - 1.70%, Mn: 0.50 - 2.50%, Al: 0.010 - 1.000%, N: 0.0060%, P ≤ 0.050%, S ≤ 0.005%, Ti: 0 - 0.150%, Nb: 0 - 0.100%, V: 0 - 0.300%, Cu: 0 - 2.00%, Ni: 0 - 2.00%, Cr: 0 - 2.00%, Mo: 0 - 1.00%, B...
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creator | OOTSUKA, Kazuya YOKOI, Tatsuo YONEMURA, Shigeru YOSHIKAWA, Nobuo |
description | A hot rolled steel sheet having a chemical composition consisting of, in mass %, C: 0.020 - 0.180%, Si: 0.05 - 1.70%, Mn: 0.50 - 2.50%, Al: 0.010 - 1.000%, N: 0.0060%, P ≤ 0.050%, S ≤ 0.005%, Ti: 0 - 0.150%, Nb: 0 - 0.100%, V: 0 - 0.300%, Cu: 0 - 2.00%, Ni: 0 - 2.00%, Cr: 0 - 2.00%, Mo: 0 - 1.00%, B: 0 - 0.0100%, Mg: 0 - 0.0100%, Ca: 0 - 0.0100%, REM: 0 - 0.1000%, Zr: 0 - 1.000%, Co: 0 - 1.000%, Zn: 0 - 1.000%, W: 0 - 1.000%, the balance: Fe and impurities, wherein a metal microstructure includes, in area %, at a position 1/4W or 3/4W from an end face of the steel sheet and 1/4t or 3/4t from a surface, martensite: more than 2% - 10%, retained austenite < 2%, bainite ≤ 40%, pearlite ≤ 2%, the balance: ferrite, an average circle-equivalent diameter of a metallic phase constituted of martensite/retained austenite is 1.0 - 5.0 µm, an average of minimum distances between adjacent metallic phases is 3 µm or more, and a standard deviation of nano hardness is 2.0 GPa or less. |
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fre ; ger</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>2020</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=20200812&DB=EPODOC&CC=EP&NR=3604586A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200812&DB=EPODOC&CC=EP&NR=3604586A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>OOTSUKA, Kazuya</creatorcontrib><creatorcontrib>YOKOI, Tatsuo</creatorcontrib><creatorcontrib>YONEMURA, Shigeru</creatorcontrib><creatorcontrib>YOSHIKAWA, Nobuo</creatorcontrib><title>HOT-ROLLED STEEL SHEET</title><description>A hot rolled steel sheet having a chemical composition consisting of, in mass %, C: 0.020 - 0.180%, Si: 0.05 - 1.70%, Mn: 0.50 - 2.50%, Al: 0.010 - 1.000%, N: 0.0060%, P ≤ 0.050%, S ≤ 0.005%, Ti: 0 - 0.150%, Nb: 0 - 0.100%, V: 0 - 0.300%, Cu: 0 - 2.00%, Ni: 0 - 2.00%, Cr: 0 - 2.00%, Mo: 0 - 1.00%, B: 0 - 0.0100%, Mg: 0 - 0.0100%, Ca: 0 - 0.0100%, REM: 0 - 0.1000%, Zr: 0 - 1.000%, Co: 0 - 1.000%, Zn: 0 - 1.000%, W: 0 - 1.000%, the balance: Fe and impurities, wherein a metal microstructure includes, in area %, at a position 1/4W or 3/4W from an end face of the steel sheet and 1/4t or 3/4t from a surface, martensite: more than 2% - 10%, retained austenite < 2%, bainite ≤ 40%, pearlite ≤ 2%, the balance: ferrite, an average circle-equivalent diameter of a metallic phase constituted of martensite/retained austenite is 1.0 - 5.0 µm, an average of minimum distances between adjacent metallic phases is 3 µm or more, and a standard deviation of nano hardness is 2.0 GPa or less.</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>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBDz8A_RDfL38XF1UQgOcXX1UQj2cHUN4WFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BxmYGJqYWZo4mxkQoAQB0Ih67</recordid><startdate>20200812</startdate><enddate>20200812</enddate><creator>OOTSUKA, Kazuya</creator><creator>YOKOI, Tatsuo</creator><creator>YONEMURA, Shigeru</creator><creator>YOSHIKAWA, Nobuo</creator><scope>EVB</scope></search><sort><creationdate>20200812</creationdate><title>HOT-ROLLED STEEL SHEET</title><author>OOTSUKA, Kazuya ; YOKOI, Tatsuo ; YONEMURA, Shigeru ; YOSHIKAWA, Nobuo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP3604586A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2020</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>OOTSUKA, Kazuya</creatorcontrib><creatorcontrib>YOKOI, Tatsuo</creatorcontrib><creatorcontrib>YONEMURA, Shigeru</creatorcontrib><creatorcontrib>YOSHIKAWA, Nobuo</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>OOTSUKA, Kazuya</au><au>YOKOI, Tatsuo</au><au>YONEMURA, Shigeru</au><au>YOSHIKAWA, Nobuo</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HOT-ROLLED STEEL SHEET</title><date>2020-08-12</date><risdate>2020</risdate><abstract>A hot rolled steel sheet having a chemical composition consisting of, in mass %, C: 0.020 - 0.180%, Si: 0.05 - 1.70%, Mn: 0.50 - 2.50%, Al: 0.010 - 1.000%, N: 0.0060%, P ≤ 0.050%, S ≤ 0.005%, Ti: 0 - 0.150%, Nb: 0 - 0.100%, V: 0 - 0.300%, Cu: 0 - 2.00%, Ni: 0 - 2.00%, Cr: 0 - 2.00%, Mo: 0 - 1.00%, B: 0 - 0.0100%, Mg: 0 - 0.0100%, Ca: 0 - 0.0100%, REM: 0 - 0.1000%, Zr: 0 - 1.000%, Co: 0 - 1.000%, Zn: 0 - 1.000%, W: 0 - 1.000%, the balance: Fe and impurities, wherein a metal microstructure includes, in area %, at a position 1/4W or 3/4W from an end face of the steel sheet and 1/4t or 3/4t from a surface, martensite: more than 2% - 10%, retained austenite < 2%, bainite ≤ 40%, pearlite ≤ 2%, the balance: ferrite, an average circle-equivalent diameter of a metallic phase constituted of martensite/retained austenite is 1.0 - 5.0 µm, an average of minimum distances between adjacent metallic phases is 3 µm or more, and a standard deviation of nano hardness is 2.0 GPa or less.</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 | HOT-ROLLED STEEL SHEET |
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