{"id":432,"date":"2025-05-15T14:13:48","date_gmt":"2025-05-15T12:13:48","guid":{"rendered":"https:\/\/www.nitinox.com\/?page_id=432"},"modified":"2026-10-21T09:52:43","modified_gmt":"2026-10-21T07:52:43","slug":"aisi-440b-martensitic-en-14112-uns-s44003","status":"publish","type":"page","link":"https:\/\/nitinox.com\/en\/materiales\/martensitic\/aisi-440b-martensitic-en-14112-uns-s44003\/","title":{"rendered":"AISI 440B \/ MARTENSITIC \/ EN 1.4112 \/ UNS S44003"},"content":{"rendered":"<h1>AISI 440B \/ MARTENSITIC \/ EN 1.4112 \/ UNS S44003<\/h1>\n<h2>Description<\/h2>\n<p>El acero inoxidable <strong>MARTENS\u00cdTICO EN 1.4112<\/strong> se conoce habitualmente como UNS S44003 o <strong>AISI 440B<\/strong> (X90CrMoV18). Esta aleaci\u00f3n al cromo destaca por su alto contenido de carbono. Adem\u00e1s, incluye adiciones estrat\u00e9gicas de molibdeno y vanadio. Por esta raz\u00f3n, alcanza una dureza extremadamente alta tras el tratamiento t\u00e9rmico de templado y revenido.<\/p>\n<p>Asimismo, el <strong>AISI 440B<\/strong> alcanza niveles de dureza de hasta 58-60 HRC. En consecuencia, ofrece una resistencia al desgaste y a la abrasi\u00f3n sobresaliente. Por otro lado, proporciona una buena resistencia a la corrosi\u00f3n en agua dulce, vapor y ambientes suaves. De igual forma, se mantiene magn\u00e9tico en todas las condiciones de suministro.<\/p>\n<p>Debido a su capacidad excepcional para retener el filo, la utilizaci\u00f3n de este acero es fundamental en herramientas de precisi\u00f3n. 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>Cuchiller\u00eda de alta calidad (cuchillos de chef, cuchillos industriales)<\/li>\n<li>Instrumentos quir\u00fargicos y m\u00e9dicos de precisi\u00f3n<\/li>\n<li>Rodamientos y cojinetes de bolas y rodillos<\/li>\n<li>Moldes y matrices para la industria del pl\u00e1stico y caucho<\/li>\n<li>Componentes de v\u00e1lvulas y bombas sometidos a desgaste severo<\/li>\n<li>Herramientas de corte y medici\u00f3n<\/li>\n<li>Piezas de maquinaria que requieren alta dureza y resistencia a la abrasi\u00f3n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/nitinox-solutions-warehouse-08.webp\" alt=\"Stock de barras y chapas de acero inoxidable martens\u00edtico AISI 440B \/ EN 1.4112 en el almac\u00e9n de Nitinox Solutions.\" width=\"1000\" height=\"667\" class=\"alignnone size-full wp-image-1056\" srcset=\"https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/nitinox-solutions-warehouse-08.webp 1000w, https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/nitinox-solutions-warehouse-08-300x200.webp 300w, https:\/\/nitinox.com\/wp-content\/uploads\/2026\/03\/nitinox-solutions-warehouse-08-768x512.webp 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<h3>Enlaces \u00fatiles para AISI 440B \/ EN 1.4112<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.astm.org\" target=\"_blank\" rel=\"noopener\">ASTM International Standards for UNS S44003<\/a><\/li>\n<li><a href=\"https:\/\/www.matweb.com\" target=\"_blank\" rel=\"noopener\">MatWeb Property Data for EN 1.4112<\/a><\/li>\n<li><a href=\"https:\/\/www.azom.com\" target=\"_blank\" rel=\"noopener\">AZoM Stainless Steel &#8211; Grade 440 Series 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 440B \/ MARTENSITIC \/ EN 1.4112 \/ UNS S44003 Descripci\u00f3n El acero inoxidable MARTENS\u00cdTICO EN 1.4112 se conoce habitualmente como UNS S44003 o AISI 440B (X90CrMoV18). Esta aleaci\u00f3n al cromo destaca por su alto contenido de carbono. Adem\u00e1s, incluye adiciones estrat\u00e9gicas de molibdeno y vanadio. Por esta raz\u00f3n, alcanza una dureza extremadamente alta tras [&hellip;] <a class=\"more-link\" href=\"https:\/\/nitinox.com\/en\/materiales\/martensitic\/aisi-440b-martensitic-en-14112-uns-s44003\/\">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-432","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 440B \/ MARTENSITIC \/ EN 1.4112 \/ UNS S44003 - Nitinox<\/title>\n<meta name=\"description\" content=\"Acero inoxidable AISI 440B \/ EN 1.4112 (UNS S44003). 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