STEEL FOR MACHINE STRUCTURE AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To produce a steel for a machine structure excellent in delayed fracture resistance, utterly free from the generation of delayed fracture in a certain period and having >=160kgf/mm tensile strength. SOLUTION: (1)This steel for a machine structure has a compsn. contg., by wei...

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Hauptverfasser:	KUSHIDA TAKAHIRO, KURATOMI NAOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	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
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creator	KUSHIDA TAKAHIRO KURATOMI NAOYUKI
description	PROBLEM TO BE SOLVED: To produce a steel for a machine structure excellent in delayed fracture resistance, utterly free from the generation of delayed fracture in a certain period and having >=160kgf/mm tensile strength. SOLUTION: (1)This steel for a machine structure has a compsn. contg., by weight, 0.3 to 0.6% C, 0.5 to 2% Si, 0.1 to 1% Cu, 0.1 to 1.5% Cr, 0.05 to 1% W, 0.001 to 0.01% Al, 0.005 to 0.2% Nb, 0.05 to 0.5% Ni, 0.01 to 0.3% V, 0 to 0.5% Mn,
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SOLUTION: (1)This steel for a machine structure has a compsn. contg., by weight, 0.3 to 0.6% C, 0.5 to 2% Si, 0.1 to 1% Cu, 0.1 to 1.5% Cr, 0.05 to 1% W, 0.001 to 0.01% Al, 0.005 to 0.2% Nb, 0.05 to 0.5% Ni, 0.01 to 0.3% V, 0 to 0.5% Mn, <=0.01% N, 0 to 0.15% Zr, 0 to 0.1 % Ti, 0 to 0.005% B, and the balance substantial Fe and satisfying the following (I) and (II): I; 0.2<=Cu(%)+W(%) and II; 1.93<=Al(%)/effective N(%) <=10, where the effective N(%)=N(%)- Zr(%)/6.25}- Ti(%)/3.43}- B(%)/0.78}. (2) This method for producing the steel for a machine structure is the one in which, after quenching, tempering is executed at the Ac1 point or below.</description><edition>6</edition><language>eng</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>1997</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=19971007&DB=EPODOC&CC=JP&NR=H09263911A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76304</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19971007&DB=EPODOC&CC=JP&NR=H09263911A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KUSHIDA TAKAHIRO</creatorcontrib><creatorcontrib>KURATOMI NAOYUKI</creatorcontrib><title>STEEL FOR MACHINE STRUCTURE AND ITS PRODUCTION</title><description>PROBLEM TO BE SOLVED: To produce a steel for a machine structure excellent in delayed fracture resistance, utterly free from the generation of delayed fracture in a certain period and having >=160kgf/mm tensile strength. SOLUTION: (1)This steel for a machine structure has a compsn. contg., by weight, 0.3 to 0.6% C, 0.5 to 2% Si, 0.1 to 1% Cu, 0.1 to 1.5% Cr, 0.05 to 1% W, 0.001 to 0.01% Al, 0.005 to 0.2% Nb, 0.05 to 0.5% Ni, 0.01 to 0.3% V, 0 to 0.5% Mn, <=0.01% N, 0 to 0.15% Zr, 0 to 0.1 % Ti, 0 to 0.005% B, and the balance substantial Fe and satisfying the following (I) and (II): I; 0.2<=Cu(%)+W(%) and II; 1.93<=Al(%)/effective N(%) <=10, where the effective N(%)=N(%)- Zr(%)/6.25}- Ti(%)/3.43}- B(%)/0.78}. (2) This method for producing the steel for a machine structure is the one in which, after quenching, tempering is executed at the Ac1 point or below.</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>1997</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNALDnF19VFw8w9S8HV09vD0c1UIDgkKdQ4JDXJVcPRzUfAMCVYICPJ3AQp5-vvxMLCmJeYUp_JCaW4GRTfXEGcP3dSC_PjU4oLE5NS81JJ4rwAPA0sjM2NLQ0NHY2LUAADtTSYJ</recordid><startdate>19971007</startdate><enddate>19971007</enddate><creator>KUSHIDA TAKAHIRO</creator><creator>KURATOMI NAOYUKI</creator><scope>EVB</scope></search><sort><creationdate>19971007</creationdate><title>STEEL FOR MACHINE STRUCTURE AND ITS PRODUCTION</title><author>KUSHIDA TAKAHIRO ; KURATOMI NAOYUKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH09263911A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1997</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>KUSHIDA TAKAHIRO</creatorcontrib><creatorcontrib>KURATOMI NAOYUKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KUSHIDA TAKAHIRO</au><au>KURATOMI NAOYUKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>STEEL FOR MACHINE STRUCTURE AND ITS PRODUCTION</title><date>1997-10-07</date><risdate>1997</risdate><abstract>PROBLEM TO BE SOLVED: To produce a steel for a machine structure excellent in delayed fracture resistance, utterly free from the generation of delayed fracture in a certain period and having >=160kgf/mm tensile strength. SOLUTION: (1)This steel for a machine structure has a compsn. contg., by weight, 0.3 to 0.6% C, 0.5 to 2% Si, 0.1 to 1% Cu, 0.1 to 1.5% Cr, 0.05 to 1% W, 0.001 to 0.01% Al, 0.005 to 0.2% Nb, 0.05 to 0.5% Ni, 0.01 to 0.3% V, 0 to 0.5% Mn, <=0.01% N, 0 to 0.15% Zr, 0 to 0.1 % Ti, 0 to 0.005% B, and the balance substantial Fe and satisfying the following (I) and (II): I; 0.2<=Cu(%)+W(%) and II; 1.93<=Al(%)/effective N(%) <=10, where the effective N(%)=N(%)- Zr(%)/6.25}- Ti(%)/3.43}- B(%)/0.78}. (2) This method for producing the steel for a machine structure is the one in which, after quenching, tempering is executed at the Ac1 point or below.</abstract><edition>6</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	STEEL FOR MACHINE STRUCTURE AND ITS PRODUCTION
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