890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and preparation method thereof
The invention relates to 890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and a preparation method thereof. The bridge steel is composed of the following elements in percentage by mass: 0.095%-0.155% of C, 0.15%-0.25% of Si, 1.60%-1.95% of Mn, less than or equal to 0.015% of P,...
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| creator | TONG MINGWEI LIU WENBIN ZHANG KAIGUANG BU YONG DONG ZHONGBO DU TAO LIANG BAOZHU XI TIANHUI YU HONGWEI |
| description | The invention relates to 890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and a preparation method thereof. The bridge steel is composed of the following elements in percentage by mass: 0.095%-0.155% of C, 0.15%-0.25% of Si, 1.60%-1.95% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.40%-0.70% of Cr, 0.25%-0.30% of Cu, 0.60%-1.50% of Ni, 0.20%-0.30% of Mo, 0.045%-0.075% of Nb, 0.008%-0.025% of Ti, 0.020%-0.040% of Re, 0.0030%-0.0050% of O, 0.015%-0.045% of Als and the balance of Fe and inevitable impurities, and the chemical components need to meet the (2) I > = 6.75; the yield strength of the steel is larger than or equal to 915 MPa, the tensile strength is larger than or equal to 1025 MPa, the yield ratio is smaller than or equal to 0.90, the longitudinal KV2 at the temperature of-40 DEG C is larger than or equal to 198 J, the corrosion resistance index I value is larger than or equal to 6.75, the relative corrosion resistance is larger than or equal to 2 |
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The bridge steel is composed of the following elements in percentage by mass: 0.095%-0.155% of C, 0.15%-0.25% of Si, 1.60%-1.95% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.40%-0.70% of Cr, 0.25%-0.30% of Cu, 0.60%-1.50% of Ni, 0.20%-0.30% of Mo, 0.045%-0.075% of Nb, 0.008%-0.025% of Ti, 0.020%-0.040% of Re, 0.0030%-0.0050% of O, 0.015%-0.045% of Als and the balance of Fe and inevitable impurities, and the chemical components need to meet the (2) I > = 6.75; the yield strength of the steel is larger than or equal to 915 MPa, the tensile strength is larger than or equal to 1025 MPa, the yield ratio is smaller than or equal to 0.90, the longitudinal KV2 at the temperature of-40 DEG C is larger than or equal to 198 J, the corrosion resistance index I value is larger than or equal to 6.75, the relative corrosion resistance is larger than or equal to 2</description><language>chi ; eng</language><subject>ALLOYS ; CASTING ; CASTING OF METALS ; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES ; 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 ; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; PERFORMING OPERATIONS ; POWDER METALLURGY ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; PUNCHING METAL ; ROLLING OF METAL ; TRANSPORTING ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>2022</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=20220826&DB=EPODOC&CC=CN&NR=114941108A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25547,76298</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220826&DB=EPODOC&CC=CN&NR=114941108A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TONG MINGWEI</creatorcontrib><creatorcontrib>LIU WENBIN</creatorcontrib><creatorcontrib>ZHANG KAIGUANG</creatorcontrib><creatorcontrib>BU YONG</creatorcontrib><creatorcontrib>DONG ZHONGBO</creatorcontrib><creatorcontrib>DU TAO</creatorcontrib><creatorcontrib>LIANG BAOZHU</creatorcontrib><creatorcontrib>XI TIANHUI</creatorcontrib><creatorcontrib>YU HONGWEI</creatorcontrib><title>890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and preparation method thereof</title><description>The invention relates to 890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and a preparation method thereof. The bridge steel is composed of the following elements in percentage by mass: 0.095%-0.155% of C, 0.15%-0.25% of Si, 1.60%-1.95% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.40%-0.70% of Cr, 0.25%-0.30% of Cu, 0.60%-1.50% of Ni, 0.20%-0.30% of Mo, 0.045%-0.075% of Nb, 0.008%-0.025% of Ti, 0.020%-0.040% of Re, 0.0030%-0.0050% of O, 0.015%-0.045% of Als and the balance of Fe and inevitable impurities, and the chemical components need to meet the (2) I > = 6.75; the yield strength of the steel is larger than or equal to 915 MPa, the tensile strength is larger than or equal to 1025 MPa, the yield ratio is smaller than or equal to 0.90, the longitudinal KV2 at the temperature of-40 DEG C is larger than or equal to 198 J, the corrosion resistance index I value is larger than or equal to 6.75, the relative corrosion resistance is larger than or equal to 2</description><subject>ALLOYS</subject><subject>CASTING</subject><subject>CASTING OF METALS</subject><subject>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</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>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>PERFORMING OPERATIONS</subject><subject>POWDER METALLURGY</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>PUNCHING METAL</subject><subject>ROLLING OF METAL</subject><subject>TRANSPORTING</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjDEOgkAQRWksjHqH8QCbQKTA0hCNjcbCnozsBzaBnc3s3D9SeACrX7z3_rZAcy4fL3ajsgf1whbi6AYFiG2RnCZo6FegKjlIdIocsnE0-mjwIygbMBNHT0mRWNcHibTAJvFkaw4Z9sVm4Dnj8Ntdcbxd3-3dIUmHnLhHhHXts6rqc11VZXM5_eN8AQgUP0A</recordid><startdate>20220826</startdate><enddate>20220826</enddate><creator>TONG MINGWEI</creator><creator>LIU WENBIN</creator><creator>ZHANG KAIGUANG</creator><creator>BU YONG</creator><creator>DONG ZHONGBO</creator><creator>DU TAO</creator><creator>LIANG BAOZHU</creator><creator>XI TIANHUI</creator><creator>YU HONGWEI</creator><scope>EVB</scope></search><sort><creationdate>20220826</creationdate><title>890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and preparation method thereof</title><author>TONG MINGWEI ; LIU WENBIN ; ZHANG KAIGUANG ; BU YONG ; DONG ZHONGBO ; DU TAO ; LIANG BAOZHU ; XI TIANHUI ; YU HONGWEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN114941108A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2022</creationdate><topic>ALLOYS</topic><topic>CASTING</topic><topic>CASTING OF METALS</topic><topic>CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES</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>MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>PERFORMING OPERATIONS</topic><topic>POWDER METALLURGY</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>PUNCHING METAL</topic><topic>ROLLING OF METAL</topic><topic>TRANSPORTING</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><toplevel>online_resources</toplevel><creatorcontrib>TONG MINGWEI</creatorcontrib><creatorcontrib>LIU WENBIN</creatorcontrib><creatorcontrib>ZHANG KAIGUANG</creatorcontrib><creatorcontrib>BU YONG</creatorcontrib><creatorcontrib>DONG ZHONGBO</creatorcontrib><creatorcontrib>DU TAO</creatorcontrib><creatorcontrib>LIANG BAOZHU</creatorcontrib><creatorcontrib>XI TIANHUI</creatorcontrib><creatorcontrib>YU HONGWEI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TONG MINGWEI</au><au>LIU WENBIN</au><au>ZHANG KAIGUANG</au><au>BU YONG</au><au>DONG ZHONGBO</au><au>DU TAO</au><au>LIANG BAOZHU</au><au>XI TIANHUI</au><au>YU HONGWEI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and preparation method thereof</title><date>2022-08-26</date><risdate>2022</risdate><abstract>The invention relates to 890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and a preparation method thereof. The bridge steel is composed of the following elements in percentage by mass: 0.095%-0.155% of C, 0.15%-0.25% of Si, 1.60%-1.95% of Mn, less than or equal to 0.015% of P, less than or equal to 0.003% of S, 0.40%-0.70% of Cr, 0.25%-0.30% of Cu, 0.60%-1.50% of Ni, 0.20%-0.30% of Mo, 0.045%-0.075% of Nb, 0.008%-0.025% of Ti, 0.020%-0.040% of Re, 0.0030%-0.0050% of O, 0.015%-0.045% of Als and the balance of Fe and inevitable impurities, and the chemical components need to meet the (2) I > = 6.75; the yield strength of the steel is larger than or equal to 915 MPa, the tensile strength is larger than or equal to 1025 MPa, the yield ratio is smaller than or equal to 0.90, the longitudinal KV2 at the temperature of-40 DEG C is larger than or equal to 198 J, the corrosion resistance index I value is larger than or equal to 6.75, the relative corrosion resistance is larger than or equal to 2</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | 890MPa-grade coating-free atmospheric corrosion-resistant bridge steel and preparation method thereof |
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