Ferrite stainless steel for automobile exhaust system member superior in thermal fatigue strength
A ferrite stainless steel for an automobile exhaust system member superior in thermal fatigue strength comprised of, by wt %, C: 0.020% or less, Si: 0.02 to 0.15%, Mn: 0.05 to 0.20%, P: 0.040% or less, S: 0.010% or less, Al: 0.005 to 0.10%, N: 0.020% or less, Cr: 15 to 18%, Mo: 1.5 to 2.0%, Ti: 3x(C...
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| creator | INOUE YOSHIHARU,KIKUCHI MASAO,KAJIMURA HARUHIKO,HIRAIDE NOBUHIKO,TANAKA YASUHISA,SUMI YOSUKE |
| description | A ferrite stainless steel for an automobile exhaust system member superior in thermal fatigue strength comprised of, by wt %, C: 0.020% or less, Si: 0.02 to 0.15%, Mn: 0.05 to 0.20%, P: 0.040% or less, S: 0.010% or less, Al: 0.005 to 0.10%, N: 0.020% or less, Cr: 15 to 18%, Mo: 1.5 to 2.0%, Ti: 3x(C+N) to 0.25%, Nb: 0.4 to 0.8%, B: 0.0003 to 0.0050%, the C and N satisfying the relationship of C+N: 0.030% or less, and the Al, Si, and Mn satisfying the relationship of Alx(Si+Mn): 0.001 to 0.020, and a balance of Fe and unavoidable impurities. The 0.2% proof stress at 900° C. before heat treatment in the atmosphere at 900° C. for 300 hours is at least 15 MPa, and a difference of the 0.2% proof stress before and after the heat treatment is not more than 5 MPa. |
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The 0.2% proof stress at 900° C. before heat treatment in the atmosphere at 900° C. for 300 hours is at least 15 MPa, and a difference of the 0.2% proof stress before and after the heat treatment is not more than 5 MPa.</description><language>eng</language><subject>ALLOYS ; BLASTING ; CHEMISTRY ; ENGINE PLANTS IN GENERAL ; FERROUS OR NON-FERROUS ALLOYS ; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES ; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; HEATING ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MECHANICAL ENGINEERING ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; STEAM ENGINES ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WEAPONS</subject><creationdate>2007</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=20070801&DB=EPODOC&CC=CN&NR=1329547C$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20070801&DB=EPODOC&CC=CN&NR=1329547C$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>INOUE YOSHIHARU,KIKUCHI MASAO,KAJIMURA HARUHIKO,HIRAIDE NOBUHIKO,TANAKA YASUHISA,SUMI YOSUKE</creatorcontrib><title>Ferrite stainless steel for automobile exhaust system member superior in thermal fatigue strength</title><description>A ferrite stainless steel for an automobile exhaust system member superior in thermal fatigue strength comprised of, by wt %, C: 0.020% or less, Si: 0.02 to 0.15%, Mn: 0.05 to 0.20%, P: 0.040% or less, S: 0.010% or less, Al: 0.005 to 0.10%, N: 0.020% or less, Cr: 15 to 18%, Mo: 1.5 to 2.0%, Ti: 3x(C+N) to 0.25%, Nb: 0.4 to 0.8%, B: 0.0003 to 0.0050%, the C and N satisfying the relationship of C+N: 0.030% or less, and the Al, Si, and Mn satisfying the relationship of Alx(Si+Mn): 0.001 to 0.020, and a balance of Fe and unavoidable impurities. The 0.2% proof stress at 900° C. before heat treatment in the atmosphere at 900° C. for 300 hours is at least 15 MPa, and a difference of the 0.2% proof stress before and after the heat treatment is not more than 5 MPa.</description><subject>ALLOYS</subject><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES</subject><subject>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>STEAM ENGINES</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjL0KwkAQhNNYiPoO-wIWGkWsD4OVlX3YyMQc3E_Y3QN9e0_wAazmg_lmlg13EPEGUmOfAlQrAYHGLMTFcsyDDyC8Ji5qpO9aR4qIA4S0zBBfTZ_IJkjkOmTzz_I9FKSnTetmMXJQbH65aqi73N11izn30JkfSLDe3Xbt_nw8nJxr_1A-Hjw-eg</recordid><startdate>20070801</startdate><enddate>20070801</enddate><creator>INOUE YOSHIHARU,KIKUCHI MASAO,KAJIMURA HARUHIKO,HIRAIDE NOBUHIKO,TANAKA YASUHISA,SUMI YOSUKE</creator><scope>EVB</scope></search><sort><creationdate>20070801</creationdate><title>Ferrite stainless steel for automobile exhaust system member superior in thermal fatigue strength</title><author>INOUE YOSHIHARU,KIKUCHI MASAO,KAJIMURA HARUHIKO,HIRAIDE NOBUHIKO,TANAKA YASUHISA,SUMI YOSUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN1329547CC3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>ALLOYS</topic><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES</topic><topic>GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>STEAM ENGINES</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>INOUE YOSHIHARU,KIKUCHI MASAO,KAJIMURA HARUHIKO,HIRAIDE NOBUHIKO,TANAKA YASUHISA,SUMI YOSUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>INOUE YOSHIHARU,KIKUCHI MASAO,KAJIMURA HARUHIKO,HIRAIDE NOBUHIKO,TANAKA YASUHISA,SUMI YOSUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ferrite stainless steel for automobile exhaust system member superior in thermal fatigue strength</title><date>2007-08-01</date><risdate>2007</risdate><abstract>A ferrite stainless steel for an automobile exhaust system member superior in thermal fatigue strength comprised of, by wt %, C: 0.020% or less, Si: 0.02 to 0.15%, Mn: 0.05 to 0.20%, P: 0.040% or less, S: 0.010% or less, Al: 0.005 to 0.10%, N: 0.020% or less, Cr: 15 to 18%, Mo: 1.5 to 2.0%, Ti: 3x(C+N) to 0.25%, Nb: 0.4 to 0.8%, B: 0.0003 to 0.0050%, the C and N satisfying the relationship of C+N: 0.030% or less, and the Al, Si, and Mn satisfying the relationship of Alx(Si+Mn): 0.001 to 0.020, and a balance of Fe and unavoidable impurities. The 0.2% proof stress at 900° C. before heat treatment in the atmosphere at 900° C. for 300 hours is at least 15 MPa, and a difference of the 0.2% proof stress before and after the heat treatment is not more than 5 MPa.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ALLOYS BLASTING CHEMISTRY ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS STEAM ENGINES TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS |
| title | Ferrite stainless steel for automobile exhaust system member superior in thermal fatigue strength |
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