{"id":420,"date":"2025-05-15T14:07:06","date_gmt":"2025-05-15T12:07:06","guid":{"rendered":"https:\/\/www.nitinox.com\/?page_id=420"},"modified":"2026-10-21T09:37:59","modified_gmt":"2026-10-21T07:37:59","slug":"aisi-420a-martensitic-en-14021-uns-s42000","status":"publish","type":"page","link":"https:\/\/nitinox.com\/en\/materiales\/martensitic\/aisi-420a-martensitic-en-14021-uns-s42000\/","title":{"rendered":"AISI 420A \/ MARTENSITIC \/ EN 1.4021 \/ UNS S42000"},"content":{"rendered":"<h1>AISI 420A \/ MARTENSITIC \/ EN 1.4021 \/ UNS S42000<\/h1>\n<h2>Description<\/h2>\n<p>El acero inoxidable <strong>MARTENS\u00cdTICO EN 1.4021<\/strong> se conoce habitualmente como UNS S42000 o <strong>AISI 420A<\/strong>. Esta aleaci\u00f3n al cromo destaca por su gran dureza. Adem\u00e1s, logra una elevada resistencia mec\u00e1nica tras el tratamiento de templado y revenido. Asimismo, ofrece una buena protecci\u00f3n contra la corrosi\u00f3n en aire y agua dulce.<\/p>\n<p>Este grado posee m\u00e1s carbono que la variante 410. Por esta raz\u00f3n, el <strong>AISI 420A<\/strong> alcanza niveles de dureza superiores. En consecuencia, resulta ideal para piezas que sufren desgaste continuo. Tambi\u00e9n conserva un excelente filo en herramientas de corte. Por otro lado, es un material magn\u00e9tico en cualquier condici\u00f3n de suministro.<\/p>\n<p>Debido a estas propiedades mec\u00e1nicas, este acero es muy com\u00fan en herramientas e instrumental 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 quir\u00fargicos, herramientas de corte)<\/li>\n<li>Instrumentos quir\u00fargicos y dentales<\/li>\n<li>Tijeras y herramientas manuales<\/li>\n<li>Rodamientos de bolas y rodillos<\/li>\n<li>Componentes de v\u00e1lvulas y asientos de v\u00e1lvula (alta dureza)<\/li>\n<li>Resortes y componentes de bombas sujetas a abrasi\u00f3n<\/li>\n<li>Moldes para pl\u00e1sticos y componentes de herramientas<\/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 y chapas de acero inoxidable martens\u00edtico AISI 420A \/ EN 1.4021 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 420A \/ EN 1.4021<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.astm.org\" target=\"_blank\" rel=\"noopener\">ASTM International Standards for UNS S42000<\/a><\/li>\n<li><a href=\"https:\/\/www.matweb.com\" target=\"_blank\" rel=\"noopener\">MatWeb Property Data for EN 1.4021<\/a><\/li>\n<li><a href=\"https:\/\/www.azom.com\" target=\"_blank\" rel=\"noopener\">AZoM Stainless Steel &#8211; Grade 420 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 420A \/ MARTENSITIC \/ EN 1.4021 \/ UNS S42000 Descripci\u00f3n El acero inoxidable MARTENS\u00cdTICO EN 1.4021 se conoce habitualmente como UNS S42000 o AISI 420A. Esta aleaci\u00f3n al cromo destaca por su gran dureza. Adem\u00e1s, logra una elevada resistencia mec\u00e1nica tras el tratamiento de templado y revenido. Asimismo, ofrece una buena protecci\u00f3n contra la [&hellip;] <a class=\"more-link\" href=\"https:\/\/nitinox.com\/en\/materiales\/martensitic\/aisi-420a-martensitic-en-14021-uns-s42000\/\">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-420","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 420A \/ MARTENSITIC \/ EN 1.4021 \/ UNS S42000 - Nitinox<\/title>\n<meta name=\"description\" content=\"Acero inoxidable AISI 420A \/ EN 1.4021 (UNS S42000). 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