{"id":380,"date":"2025-05-13T14:03:27","date_gmt":"2025-05-13T12:03:27","guid":{"rendered":"https:\/\/www.nitinox.com\/?page_id=380"},"modified":"2026-10-14T09:23:21","modified_gmt":"2026-10-14T07:23:21","slug":"aisi-347h-en-14550-uns-s34700-austenitic","status":"publish","type":"page","link":"https:\/\/nitinox.com\/en\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/","title":{"rendered":"AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC"},"content":{"rendered":"<h1>AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC<\/h1>\n<h2>Description<\/h2>\n<p>El acero inoxidable AUSTEN\u00cdTICO EN 1.4550 (tambi\u00e9n conocido como UNS S34700 o AISI 347) es una aleaci\u00f3n de cromo-n\u00edquel estabilizada con niobio (colombio). Similar al 321 (1.4541) que usa titanio, la adici\u00f3n de niobio minimiza la precipitaci\u00f3n de carburos en el l\u00edmite de grano, lo que confiere una excelente resistencia a la corrosi\u00f3n intergranular, especialmente despu\u00e9s de la exposici\u00f3n a temperaturas elevadas (entre 425 \u00b0C y 870 \u00b0C).<\/p>\n<p>Esta estabilizaci\u00f3n permite su uso en aplicaciones de alta temperatura donde la soldadura es com\u00fan y se necesita resistencia a la corrosi\u00f3n sin un recocido posterior a la soldadura. El AISI 347 mantiene las buenas propiedades de conformabilidad y soldabilidad de los aceros austen\u00edticos est\u00e1ndar.<\/p>\n<p>Gracias a su estabilidad t\u00e9rmica superior y su comportamiento en uniones soldadas a elevadas temperaturas, el uso de AISI 347 resulta fundamental en plantas de generaci\u00f3n de energ\u00eda y colectores industriales. Como distribuidores especializados, aseguramos un suministro certificado y con total trazabilidad t\u00e9cnica.<\/p>\n<h2>Applications in the real world<\/h2>\n<ul>\n<li>Tubos de escape y colectores de automoci\u00f3n<\/li>\n<li>Componentes de hornos y calderas de alta temperatura<\/li>\n<li>Recipientes a presi\u00f3n para servicios a elevadas temperaturas<\/li>\n<li>Compensadores de dilataci\u00f3n y fuelles<\/li>\n<li>Revestimientos de chimeneas y conductos de humos en centrales el\u00e9ctricas<\/li>\n<li>Tubos de sobrecalentador en centrales t\u00e9rmicas<\/li>\n<li>Equipos para la industria aeroespacial<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp\" alt=\"Stock de chapas y tubos de acero inoxidable AISI 347 \/ EN 1.4550 en el almac\u00e9n de Nitinox Solutions.\" width=\"1000\" height=\"450\" class=\"alignnone size-full wp-image-1064\" srcset=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp 1000w, https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02-300x135.webp 300w, https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02-768x346.webp 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3>Enlaces \u00fatiles para AISI 347 (H) \/ EN 1.4550 \/ UNS S34700<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.astm.org\" target=\"_blank\" rel=\"noopener\">ASTM International Standards for AISI 347<\/a><\/li>\n<li><a href=\"https:\/\/www.matweb.com\" target=\"_blank\" rel=\"noopener\">MatWeb Property Data for EN 1.4550<\/a><\/li>\n<li><a href=\"https:\/\/www.azom.com\" target=\"_blank\" rel=\"noopener\">AZoM Stainless Steel &#8211; Grade 347 Guide<\/a><\/li>\n<\/ul>\n<p>You can also find the complete list of similar materials on the main page of <a href=\"\/en\/material\/austenitic\/\">Austenitic<\/a>.<\/p>\n<hr>\n<h5><strong>Please, <a href=\"\/en\/contact-us\/\">Contact us<\/a> if you would like more information or a quote.<\/strong><\/h5>","protected":false},"excerpt":{"rendered":"<p>El acero inoxidable AUSTEN\u00cdTICO EN 1.4550 (tambi\u00e9n conocido como UNS S34700 o AISI 347) es una aleaci\u00f3n de cromo-n\u00edquel estabilizada con niobio (colombio). Similar al 321 (1.4541) que usa titanio, la adici\u00f3n de niobio minimiza la precipitaci\u00f3n de carburos en el l\u00edmite de grano, lo que confiere una excelente resistencia a la corrosi\u00f3n intergranular, especialmente despu\u00e9s de la exposici\u00f3n a temperaturas elevadas (entre 425 \u00b0C y 870 \u00b0C). <a class=\"more-link\" href=\"https:\/\/nitinox.com\/en\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/\">Read More &#10095;&#10095;<\/a><\/p>","protected":false},"author":1,"featured_media":0,"parent":300,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","pgc_sgb_lightbox_settings":"","footnotes":""},"class_list":["post-380","page","type-page","status-publish","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC - Nitinox<\/title>\n<meta name=\"description\" content=\"Acero inoxidable AISI 347 \/ EN 1.4550 (UNS S34700). Aleaci\u00f3n estabilizada con niobio para alta resistencia a la corrosi\u00f3n intergranular.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nitinox.com\/en\/materials\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC - Nitinox\" \/>\n<meta property=\"og:description\" content=\"Acero inoxidable AISI 347 \/ EN 1.4550 (UNS S34700). Aleaci\u00f3n estabilizada con niobio para alta resistencia a la corrosi\u00f3n intergranular.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nitinox.com\/en\/materials\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/\" \/>\n<meta property=\"og:site_name\" content=\"Nitinox\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-14T07:23:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"450\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/\",\"url\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/\",\"name\":\"AISI 347 (H) \\\/ EN 1.4550 \\\/ UNS S34700 \\\/ AUSTENITIC - Nitinox\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/warehouse-02.webp\",\"datePublished\":\"2025-05-13T12:03:27+00:00\",\"dateModified\":\"2026-10-14T07:23:21+00:00\",\"description\":\"Acero inoxidable AISI 347 \\\/ EN 1.4550 (UNS S34700). Aleaci\u00f3n estabilizada con niobio para alta resistencia a la corrosi\u00f3n intergranular.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/#primaryimage\",\"url\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/warehouse-02.webp\",\"contentUrl\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/warehouse-02.webp\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/aisi-347h-en-14550-uns-s34700-austenitic\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/nitinox.com\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Materiales\",\"item\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Austenitic\",\"item\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/austenitic\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"AISI 347 (H) \\\/ EN 1.4550 \\\/ UNS S34700 \\\/ AUSTENITIC\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/#website\",\"url\":\"https:\\\/\\\/nitinox.com\\\/\",\"name\":\"Nitinox\",\"description\":\"Distribuci\u00f3n de aceros inoxidables, aceros especiales y aleaciones de n\u00edquel y titanio\",\"publisher\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/nitinox.com\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/#organization\",\"name\":\"Nitinox\",\"url\":\"https:\\\/\\\/nitinox.com\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/NITINOX-SOLUTIONS.png\",\"contentUrl\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/NITINOX-SOLUTIONS.png\",\"width\":2065,\"height\":1645,\"caption\":\"Nitinox\"},\"image\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.linkedin.com\\\/company\\\/103227720\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC - Nitinox","description":"Acero inoxidable AISI 347 \/ EN 1.4550 (UNS S34700). Aleaci\u00f3n estabilizada con niobio para alta resistencia a la corrosi\u00f3n intergranular.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/nitinox.com\/en\/materials\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/","og_locale":"en_GB","og_type":"article","og_title":"AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC - Nitinox","og_description":"Acero inoxidable AISI 347 \/ EN 1.4550 (UNS S34700). Aleaci\u00f3n estabilizada con niobio para alta resistencia a la corrosi\u00f3n intergranular.","og_url":"https:\/\/nitinox.com\/en\/materials\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/","og_site_name":"Nitinox","article_modified_time":"2026-10-14T07:23:21+00:00","og_image":[{"width":1000,"height":450,"url":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/","url":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/","name":"AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC - Nitinox","isPartOf":{"@id":"https:\/\/nitinox.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/#primaryimage"},"image":{"@id":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/#primaryimage"},"thumbnailUrl":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp","datePublished":"2025-05-13T12:03:27+00:00","dateModified":"2026-10-14T07:23:21+00:00","description":"Acero inoxidable AISI 347 \/ EN 1.4550 (UNS S34700). Aleaci\u00f3n estabilizada con niobio para alta resistencia a la corrosi\u00f3n intergranular.","breadcrumb":{"@id":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/#primaryimage","url":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp","contentUrl":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-02.webp"},{"@type":"BreadcrumbList","@id":"https:\/\/nitinox.com\/materiales\/austenitic\/aisi-347h-en-14550-uns-s34700-austenitic\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/nitinox.com\/"},{"@type":"ListItem","position":2,"name":"Materiales","item":"https:\/\/nitinox.com\/materiales\/"},{"@type":"ListItem","position":3,"name":"Austenitic","item":"https:\/\/nitinox.com\/materiales\/austenitic\/"},{"@type":"ListItem","position":4,"name":"AISI 347 (H) \/ EN 1.4550 \/ UNS S34700 \/ AUSTENITIC"}]},{"@type":"WebSite","@id":"https:\/\/nitinox.com\/#website","url":"https:\/\/nitinox.com\/","name":"Nitinox","description":"Distribution of stainless steels, special steels and nickel-titanium alloys","publisher":{"@id":"https:\/\/nitinox.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/nitinox.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/nitinox.com\/#organization","name":"Nitinox","url":"https:\/\/nitinox.com\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/nitinox.com\/#\/schema\/logo\/image\/","url":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/06\/NITINOX-SOLUTIONS.png","contentUrl":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/06\/NITINOX-SOLUTIONS.png","width":2065,"height":1645,"caption":"Nitinox"},"image":{"@id":"https:\/\/nitinox.com\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.linkedin.com\/company\/103227720\/"]}]}},"_links":{"self":[{"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/comments?post=380"}],"version-history":[{"count":6,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/380\/revisions"}],"predecessor-version":[{"id":1700,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/380\/revisions\/1700"}],"up":[{"embeddable":true,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/300"}],"wp:attachment":[{"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/media?parent=380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}