AUSTENITIC STAINLESS STEEL

AUSTENITIC STAINLESS STEEL

PURPOSE:To improve the hot workability of the titled steel in which weldability is improved by allowing small amounts of delta ferrite to remain, by adding specific amounts of rare earth elements and B to a stainless steel having a specific composition. CONSTITUTION:An austenitic stainless steel has...

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1. Verfasser: YAMADA SEIKICHI
Format: Patent
Sprache:eng
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator YAMADA SEIKICHI
description PURPOSE:To improve the hot workability of the titled steel in which weldability is improved by allowing small amounts of delta ferrite to remain, by adding specific amounts of rare earth elements and B to a stainless steel having a specific composition. CONSTITUTION:An austenitic stainless steel has a composition consisting of
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CONSTITUTION:An austenitic stainless steel has a composition consisting of <=0.08% C, <=2.0% Si, <=3.0% Mn, 8.0-15.0% Ni, 17.0-25.0% Cr, 0.005-0.05% rare earth elements and/or 0.0005-0.010% B, and the balance Fe and also has a structure in which delta ferrite comprises 10-20%. Moreover, one or more kinds among <=1.0% Nb, <=3.0% Mo, and <=0.1% N may be further incorporated to this steel. The above rare earth elements improve hot workability because they are precipitated in the grain boundaries and strengthen the grain boundaries, and the effect of the addition is produced when their contents reach the lower limits, while compounds harmful to hot workability are formed when they exceed the upper limits. B also has an effect similar to that of rare earth element, but, when its content exceeds the upper limit, hot workability is deteriorated on the contrary.]]></description><language>eng</language><subject>ALLOYS ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; METALLURGY ; TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><creationdate>1988</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=19880630&amp;DB=EPODOC&amp;CC=JP&amp;NR=S63157840A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19880630&amp;DB=EPODOC&amp;CC=JP&amp;NR=S63157840A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>YAMADA SEIKICHI</creatorcontrib><title>AUSTENITIC STAINLESS STEEL</title><description><![CDATA[PURPOSE:To improve the hot workability of the titled steel in which weldability is improved by allowing small amounts of delta ferrite to remain, by adding specific amounts of rare earth elements and B to a stainless steel having a specific composition. CONSTITUTION:An austenitic stainless steel has a composition consisting of <=0.08% C, <=2.0% Si, <=3.0% Mn, 8.0-15.0% Ni, 17.0-25.0% Cr, 0.005-0.05% rare earth elements and/or 0.0005-0.010% B, and the balance Fe and also has a structure in which delta ferrite comprises 10-20%. Moreover, one or more kinds among <=1.0% Nb, <=3.0% Mo, and <=0.1% N may be further incorporated to this steel. The above rare earth elements improve hot workability because they are precipitated in the grain boundaries and strengthen the grain boundaries, and the effect of the addition is produced when their contents reach the lower limits, while compounds harmful to hot workability are formed when they exceed the upper limits. B also has an effect similar to that of rare earth element, but, when its content exceeds the upper limit, hot workability is deteriorated on the contrary.]]></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>1988</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJByDA0OcfXzDPF0VggOcfT083ENDgayXF19eBhY0xJzilN5oTQ3g6Kba4izh25qQX58anFBYnJqXmpJvFdAsJmxoam5hYmBozExagBQWSDJ</recordid><startdate>19880630</startdate><enddate>19880630</enddate><creator>YAMADA SEIKICHI</creator><scope>EVB</scope></search><sort><creationdate>19880630</creationdate><title>AUSTENITIC STAINLESS STEEL</title><author>YAMADA SEIKICHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPS63157840A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1988</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>YAMADA SEIKICHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>YAMADA SEIKICHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AUSTENITIC STAINLESS STEEL</title><date>1988-06-30</date><risdate>1988</risdate><abstract><![CDATA[PURPOSE:To improve the hot workability of the titled steel in which weldability is improved by allowing small amounts of delta ferrite to remain, by adding specific amounts of rare earth elements and B to a stainless steel having a specific composition. CONSTITUTION:An austenitic stainless steel has a composition consisting of <=0.08% C, <=2.0% Si, <=3.0% Mn, 8.0-15.0% Ni, 17.0-25.0% Cr, 0.005-0.05% rare earth elements and/or 0.0005-0.010% B, and the balance Fe and also has a structure in which delta ferrite comprises 10-20%. Moreover, one or more kinds among <=1.0% Nb, <=3.0% Mo, and <=0.1% N may be further incorporated to this steel. The above rare earth elements improve hot workability because they are precipitated in the grain boundaries and strengthen the grain boundaries, and the effect of the addition is produced when their contents reach the lower limits, while compounds harmful to hot workability are formed when they exceed the upper limits. B also has an effect similar to that of rare earth element, but, when its content exceeds the upper limit, hot workability is deteriorated on the contrary.]]></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 AUSTENITIC STAINLESS STEEL
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