{"id":427,"date":"2025-05-15T14:11:35","date_gmt":"2025-05-15T12:11:35","guid":{"rendered":"https:\/\/www.nitinox.com\/?page_id=427"},"modified":"2026-10-21T09:50:05","modified_gmt":"2026-10-21T07:50:05","slug":"aisi-431-martensitic-en-14057-uns-s43100","status":"publish","type":"page","link":"https:\/\/nitinox.com\/en\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/","title":{"rendered":"AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100"},"content":{"rendered":"<h1>AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100<\/h1>\n<h2>Description<\/h2>\n<p>El acero inoxidable <strong>MARTENS\u00cdTICO EN 1.4057<\/strong> se conoce habitualmente como UNS S43100 o <strong>AISI 431<\/strong>. Esta aleaci\u00f3n al cromo y n\u00edquel destaca dentro del grupo de los aceros martens\u00edticos. De hecho, la presencia de n\u00edquel mejora considerablemente su tenacidad. Asimismo, incrementa su resistencia a la corrosi\u00f3n en ambientes moderadamente agresivos, como el agua salada y los \u00e1cidos suaves.<\/p>\n<p>Por otro lado, el <strong>AISI 431<\/strong> se endurece mediante tratamiento t\u00e9rmico de templado y revenido. Por esta raz\u00f3n, alcanza una elevada resistencia a la tracci\u00f3n y una excelente dureza. En consecuencia, mantiene una magn\u00edfica resistencia al impacto bajo cargas exigentes. Adem\u00e1s, conserva sus propiedades magn\u00e9ticas en todas las condiciones de suministro.<\/p>\n<p>Debido a su equilibrio entre resistencia mec\u00e1nica superior y protecci\u00f3n contra la corrosi\u00f3n, el uso de este acero resulta id\u00f3neo en entornos marinos e industriales. Como distribuidores especializados, garantizamos un suministro certificado y con total trazabilidad t\u00e9cnica.<\/p>\n<h2>Applications in the real world<\/h2>\n<ul>\n<li>Ejes de bombas y h\u00e9lices para aplicaciones marinas<\/li>\n<li>Valve components and accessories<\/li>\n<li>Elementos de m\u00e1quinas sujetos a alta tensi\u00f3n (por ejemplo, bielas)<\/li>\n<li>Sujetadores (tornillos, tuercas, pernos)<\/li>\n<li>Componentes de turbinas<\/li>\n<li>Equipos para la industria aeroespacial<\/li>\n<li>Instrumentos m\u00e9dicos y quir\u00fargicos (donde se requiere alta dureza y resistencia a la corrosi\u00f3n)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.webp\" alt=\"Stock de barras de acero inoxidable martens\u00edtico AISI 431 \/ EN 1.4057 en el almac\u00e9n de Nitinox Solutions.\" width=\"1000\" height=\"450\" class=\"alignnone size-full wp-image-1062\" srcset=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.webp 1000w, https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b-300x135.webp 300w, https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b-768x346.webp 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3>Enlaces \u00fatiles para AISI 431 \/ EN 1.4057<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.astm.org\" target=\"_blank\" rel=\"noopener\">ASTM International Standards for UNS S43100<\/a><\/li>\n<li><a href=\"https:\/\/www.matweb.com\" target=\"_blank\" rel=\"noopener\">MatWeb Property Data for EN 1.4057<\/a><\/li>\n<li><a href=\"https:\/\/www.azom.com\" target=\"_blank\" rel=\"noopener\">AZoM Stainless Steel &#8211; Grade 431 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\/materials\/martensitic\/\">Martensitic<\/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>AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100 Descripci\u00f3n El acero inoxidable MARTENS\u00cdTICO EN 1.4057 se conoce habitualmente como UNS S43100 o AISI 431. Esta aleaci\u00f3n al cromo y n\u00edquel destaca dentro del grupo de los aceros martens\u00edticos. De hecho, la presencia de n\u00edquel mejora considerablemente su tenacidad. Asimismo, incrementa su resistencia a [&hellip;] <a class=\"more-link\" href=\"https:\/\/nitinox.com\/en\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/\">Read More &#10095;&#10095;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":307,"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-427","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 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100 - Nitinox<\/title>\n<meta name=\"description\" content=\"Acero inoxidable AISI 431 \/ EN 1.4057 (UNS S43100). Grado martens\u00edtico con n\u00edquel para alta tenacidad y resistencia a la corrosi\u00f3n.\" \/>\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\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100 - Nitinox\" \/>\n<meta property=\"og:description\" content=\"Acero inoxidable AISI 431 \/ EN 1.4057 (UNS S43100). Grado martens\u00edtico con n\u00edquel para alta tenacidad y resistencia a la corrosi\u00f3n.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nitinox.com\/en\/materials\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/\" \/>\n<meta property=\"og:site_name\" content=\"Nitinox\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-21T07:50:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.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\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/\",\"url\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/\",\"name\":\"AISI 431 \\\/ MARTENSITIC \\\/ EN 1.4057 \\\/ UNS S43100 - Nitinox\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/warehouse-03b.webp\",\"datePublished\":\"2025-05-15T12:11:35+00:00\",\"dateModified\":\"2026-10-21T07:50:05+00:00\",\"description\":\"Acero inoxidable AISI 431 \\\/ EN 1.4057 (UNS S43100). Grado martens\u00edtico con n\u00edquel para alta tenacidad y resistencia a la corrosi\u00f3n.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/#primaryimage\",\"url\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/warehouse-03b.webp\",\"contentUrl\":\"https:\\\/\\\/nitinox.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/warehouse-03b.webp\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/aisi-431-martensitic-en-14057-uns-s43100\\\/#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\":\"Martensitic\",\"item\":\"https:\\\/\\\/nitinox.com\\\/materiales\\\/martensitic\\\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"AISI 431 \\\/ MARTENSITIC \\\/ EN 1.4057 \\\/ UNS S43100\"}]},{\"@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 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100 - Nitinox","description":"Acero inoxidable AISI 431 \/ EN 1.4057 (UNS S43100). Grado martens\u00edtico con n\u00edquel para alta tenacidad y resistencia a la corrosi\u00f3n.","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\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/","og_locale":"en_GB","og_type":"article","og_title":"AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100 - Nitinox","og_description":"Acero inoxidable AISI 431 \/ EN 1.4057 (UNS S43100). Grado martens\u00edtico con n\u00edquel para alta tenacidad y resistencia a la corrosi\u00f3n.","og_url":"https:\/\/nitinox.com\/en\/materials\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/","og_site_name":"Nitinox","article_modified_time":"2026-10-21T07:50:05+00:00","og_image":[{"width":1000,"height":450,"url":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.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\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/","url":"https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/","name":"AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100 - Nitinox","isPartOf":{"@id":"https:\/\/nitinox.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/#primaryimage"},"image":{"@id":"https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/#primaryimage"},"thumbnailUrl":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.webp","datePublished":"2025-05-15T12:11:35+00:00","dateModified":"2026-10-21T07:50:05+00:00","description":"Acero inoxidable AISI 431 \/ EN 1.4057 (UNS S43100). Grado martens\u00edtico con n\u00edquel para alta tenacidad y resistencia a la corrosi\u00f3n.","breadcrumb":{"@id":"https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/#primaryimage","url":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.webp","contentUrl":"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/warehouse-03b.webp"},{"@type":"BreadcrumbList","@id":"https:\/\/nitinox.com\/materiales\/martensitic\/aisi-431-martensitic-en-14057-uns-s43100\/#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":"Martensitic","item":"https:\/\/nitinox.com\/materiales\/martensitic\/"},{"@type":"ListItem","position":4,"name":"AISI 431 \/ MARTENSITIC \/ EN 1.4057 \/ UNS S43100"}]},{"@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\/427","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=427"}],"version-history":[{"count":5,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/427\/revisions"}],"predecessor-version":[{"id":1756,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/427\/revisions\/1756"}],"up":[{"embeddable":true,"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/pages\/307"}],"wp:attachment":[{"href":"https:\/\/nitinox.com\/en\/wp-json\/wp\/v2\/media?parent=427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}