{"id":6249,"date":"2026-09-11T04:28:36","date_gmt":"2026-09-11T04:28:36","guid":{"rendered":"https:\/\/beiyutitanium.com\/titanium-facts\/"},"modified":"2026-09-11T12:24:23","modified_gmt":"2026-09-11T12:24:23","slug":"titanium-facts","status":"publish","type":"post","link":"https:\/\/beiyutitanium.com\/es\/titanium-facts\/","title":{"rendered":"Datos del titanio: las cifras, su dispersi\u00f3n y lo que confirma un certificado"},"content":{"rendered":"

La mayor\u00eda de las listas de datos sobre el titanio mezclan dos cosas distintas: curiosidades sobre el elemento y cifras que un ingeniero va a incluir en un plano. Conviene acertar con las segundas, porque varias de las cifras que circulan se citan con m\u00e1s precisi\u00f3n de la que realmente respaldan las fuentes, y algunas de las propiedades m\u00e1s citadas no se verifican mediante las especificaciones conforme a las que se compra titanio.<\/p>\n

\"Batch<\/figure>\n

Las cifras, con la dispersi\u00f3n que realmente muestran las fuentes<\/h2>\n

Estos son los valores que Beiyu Titanium publica para Grade 2, una calidad sin alear. Cuando las fuentes discrepan, se muestra la discrepancia en lugar de ocultarla mediante un promedio.<\/p>\n\n\n\n\n\n\n\n\n\n\n
Propiedad<\/th>\nM\u00e9trico<\/th>\nImperial<\/th>\n<\/tr>\n
Densidad<\/td>\n4,51 g\/cm³<\/td>\n0.163 lb\/in³<\/td>\n<\/tr>\n
Punto de fusi\u00f3n<\/td>\nAproximadamente 1660 °C; las fuentes indican de 1649 a 1671 °C<\/td>\nAproximadamente 3020 °F; de 3000 a 3040 °F<\/td>\n<\/tr>\n
M\u00f3dulo de elasticidad<\/td>\n105 GPa<\/td>\n15,2 \u00d7 10\u2076 psi<\/td>\n<\/tr>\n
Coeficiente de Poisson<\/td>\n0.32<\/td>\n0.32<\/td>\n<\/tr>\n
Conductividad t\u00e9rmica a 20 °C<\/td>\n20 a 22 W\/m·K<\/td>\n11.6 a 12.7 BTU\/hr·ft·°F<\/td>\n<\/tr>\n
Capacidad calor\u00edfica espec\u00edfica<\/td>\n520 J\/kg·K<\/td>\n0.124 BTU\/lb·°F<\/td>\n<\/tr>\n
Coeficiente de expansi\u00f3n t\u00e9rmica<\/td>\n8.6 × 10⁻\u2076 \/K (0 to 100 °C)<\/td>\n4.8 µin\/in·°F (68 a 212 °F)<\/td>\n<\/tr>\n
Resistividad el\u00e9ctrica<\/td>\n0.48 a 0.53 µΩ·m<\/td>\n19 a 21 µΩ·in<\/td>\n<\/tr>\n<\/table>\n

Dos de esas entradas merecen una advertencia en lugar de una cifra cerrada. Los 20 a 22 W\/m·K de la tabla corresponden a 20 °C; entre fuentes y temperaturas de referencia, la dispersi\u00f3n publicada se ampl\u00eda a aproximadamente 16 a 22 W\/m·K, y la resistividad el\u00e9ctrica se comporta del mismo modo, por lo que conviene dimensionar con la cifra respaldada por el c\u00f3digo de dise\u00f1o. Del mismo modo, distintas referencias citan el punto de fusi\u00f3n de forma diferente, por lo que aqu\u00ed se indica como intervalo y no como valor \u00fanico. Una cifra \u00fanica no es m\u00e1s precisa que un intervalo; solo oculta d\u00f3nde se encuentra la incertidumbre.<\/p>\n

La resistividad el\u00e9ctrica es donde esa dispersi\u00f3n es mayor y donde m\u00e1s importa la calidad, porque Grade 5 tiene aproximadamente tres veces m\u00e1s resistividad que Grade 2. Las cifras por calidad, y la discrepancia entre fuentes publicadas presentadas una junto a otra en lugar de promediadas, est\u00e1n en si el titanio es conductor<\/a>.<\/p>\n

Cu\u00e1les de ellas confirma realmente un certificado de materiales<\/h2>\n

Esta es la parte que distingue un dato que merece citarse de uno que sirve para tomar decisiones. ASTM B265 y ASTM B348, las especificaciones conforme a las que se pide la mayor parte de las chapas finas, chapas gruesas y barras de titanio, establecen la composici\u00f3n qu\u00edmica, las propiedades mec\u00e1nicas y las tolerancias dimensionales. No incluyen las propiedades f\u00edsicas de la tabla anterior.<\/p>\n\n\n\n\n\n\n
Tipo de cifra<\/th>\n\u00bfEs un dato que se informa habitualmente conforme a B265 o B348?<\/th>\nQu\u00e9 significa para un plano<\/th>\n<\/tr>\n
Composici\u00f3n qu\u00edmica y propiedades de tracci\u00f3n<\/td>\nS\u00ed, se exigen y se informan<\/td>\nSe pueden especificar y utilizar como criterio de rechazo<\/td>\n<\/tr>\n
Densidad, punto de fusi\u00f3n, valores t\u00e9rmicos y el\u00e9ctricos<\/td>\nNo<\/td>\nDatos de dise\u00f1o; un l\u00edmite de aceptaci\u00f3n requiere un acuerdo separado en el pedido<\/td>\n<\/tr>\n
Dureza<\/td>\nNo. La ficha t\u00e9cnica de Grade 2 indica valores t\u00edpicos publicados pr\u00f3ximos a 150 HB y, por separado, de 160 a 200 HV<\/td>\nRequiere un ensayo adicional acordado si es un requisito<\/td>\n<\/tr>\n
Permeabilidad magn\u00e9tica<\/td>\nNo<\/td>\nConsulte si el titanio es magn\u00e9tico<\/a> para las cifras y la cl\u00e1usula<\/td>\n<\/tr>\n<\/table>\n

La consecuencia pr\u00e1ctica es que una especificaci\u00f3n que repite una densidad de manual o un punto de fusi\u00f3n nominal como si la norma lo verificara se apoya en algo que esas especificaciones no informan. No es imposible comprar conforme a ese l\u00edmite, pero debe acordarse por separado, con el m\u00e9todo y el requisito de informe incluidos en el pedido. De lo contrario, la cifra corresponde al c\u00e1lculo y no a la cl\u00e1usula de aceptaci\u00f3n.<\/p>\n

\"Titanium<\/figure>\n

Tres datos que cambian lo que hace un comprador<\/h2>\n\n\n\n\n\n
Dato<\/th>\nPor qu\u00e9 importa en un pedido<\/th>\n<\/tr>\n
El titanio Grade 2 tiene una densidad de 4,51 g\/cm³<\/td>\nEl peso por metro es un c\u00e1lculo, no un valor de cat\u00e1logo; se obtiene de la secci\u00f3n y de esta densidad<\/td>\n<\/tr>\n
El titanio no forma herrumbre, porque la herrumbre es \u00f3xido de hierro<\/td>\nEn su lugar, presenta una pel\u00edcula pasiva de di\u00f3xido de titanio. La resistencia a la corrosi\u00f3n suele asociarse a esa pel\u00edcula, y en algunos medios la pel\u00edcula puede perder estabilidad, por lo que no formar herrumbre no equivale a no corroerse<\/td>\n<\/tr>\n
El titanio sin alear no es un \u00fanico material<\/td>\nGrade 1, 2, 3 y 4 son todos sin alear y presentan distintos l\u00edmites de composici\u00f3n qu\u00edmica, con el ox\u00edgeno y otros intersticiales entre los elementos que los diferencian. Indicar “titanio CP” sin la calidad, la forma del producto y la norma aplicable deja sin definir los requisitos qu\u00edmicos y mec\u00e1nicos aplicables<\/td>\n<\/tr>\n<\/table>\n

Para las cifras por calidad que respaldan estos datos, consulte las Grade 2<\/a> y Grade 5<\/a> fichas t\u00e9cnicas, que incluyen los l\u00edmites de composici\u00f3n qu\u00edmica, los m\u00ednimos mec\u00e1nicos y las normas conforme a las que se suministra cada una.<\/p>\n

Detalles de especificaci\u00f3n con fuentes<\/h2>\n

Los valores de propiedades f\u00edsicas citados anteriormente son los que figuran en la ficha t\u00e9cnica de Grade 2 de Beiyu Titanium, incluido el punto de fusi\u00f3n de aproximadamente 1660 \u00b0C (las fuentes indican de 1649 a 1671 \u00b0C) y la dispersi\u00f3n de conductividad t\u00e9rmica de aproximadamente 16 a 22 W\/m\u00b7K indicada all\u00ed. La afirmaci\u00f3n de que estas propiedades no figuran en ASTM B265 ni ASTM B348 refleja el alcance de esas especificaciones, que cubren composici\u00f3n qu\u00edmica, propiedades mec\u00e1nicas y tolerancias dimensionales; la densidad, el punto de fusi\u00f3n, la dureza y la permeabilidad magn\u00e9tica no est\u00e1n entre los datos informados, por lo que un l\u00edmite para cualquiera de ellas se acuerda entre comprador y proveedor y se indica en el pedido, en lugar de darse por supuesto a partir de la norma.<\/p>\n

Comprar conforme a las cifras y no a las curiosidades<\/h2>\n

Beiyu Titanium suministra barras, chapas gruesas, chapas finas, tubos y piezas forjadas de titanio en Grade 1, 2, 5, 7, 9, 12 y 23 conforme a especificaciones ASTM y AMS, con un certificado de inspecci\u00f3n 3.1 seg\u00fan EN 10204 conforme al alcance del pedido. Env\u00ede la calidad, la especificaci\u00f3n aplicable, las dimensiones con tolerancia, el estado de suministro y de la superficie y el alcance de inspecci\u00f3n. Cuando una propiedad f\u00edsica deba mantenerse dentro de un l\u00edmite, indique el l\u00edmite, el m\u00e9todo de ensayo y el requisito de informe en el pedido para que puedan acordarse en la oferta.<\/p>","protected":false},"excerpt":{"rendered":"

Most titanium fact lists mix two different things: trivia about the element, and numbers an engineer is going to put on a drawing. The second kind is worth getting right, because several of the figures that circulate are quoted to more precision than the sources actually support, and a few of the properties most often […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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La producci\u00f3n se realiza en la f\u00e1brica de titanio de Beiyu en Baoji, Shaanxi. Los pedidos se basan en solicitudes de oferta, con certificados de inspecci\u00f3n 3.1 seg\u00fan EN 10204 y trazabilidad por n\u00famero de colada disponibles a petici\u00f3n.","areaServed":"Worldwide","knowsAbout":["Titanium","Titanium alloy","Titanium bar","Titanium sheet and plate","Titanium tube and pipe","Titanium forgings","Titanium wire","Titanium anode"],"address":{"@type":"PostalAddress","streetAddress":"Baotai Road Industrial Park, High-tech Development Zone","addressLocality":"Baoji","addressRegion":"Shaanxi","addressCountry":"CN"},"legalName":"Jiaxing Beiyu New Materials Technology Co., Ltd."},{"@type":"Person","@id":"https:\/\/beiyutitanium.com\/#\/schema\/person\/3560db17cf08813edf34f012735b971b","name":"Penn Ma","image":{"@type":"ImageObject","inLanguage":"es-ES","@id":"https:\/\/secure.gravatar.com\/avatar\/0659bdefb633d0d8e567b06d2f8bffac2a369834e53e96c922a06fd8a96f3c72?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/0659bdefb633d0d8e567b06d2f8bffac2a369834e53e96c922a06fd8a96f3c72?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/0659bdefb633d0d8e567b06d2f8bffac2a369834e53e96c922a06fd8a96f3c72?s=96&d=mm&r=g","caption":"Penn Ma"},"description":"Penn Ma es la persona que responde a las solicitudes de oferta en Beiyu Titanium. 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Esas son las mismas cuatro cosas que un comprador de la industria de procesos o regulada exigir\u00e1 a un proveedor de titanio, y haber tenido que aplicarlas como cliente es la raz\u00f3n por la que aqu\u00ed se tratan como parte del suministro y no como documentaci\u00f3n elaborada posteriormente. Su trabajo diario abarca las cuestiones que este sitio est\u00e1 concebido para responder: elegir entre calidades de titanio comercialmente puro y aleado para un servicio corrosivo, interpretar un certificado de materiales frente a la norma solicitada y relacionar la designaci\u00f3n de un comprador (calidad ASTM, UNS, n\u00famero Werkstoff alem\u00e1n o c\u00f3digo NF franc\u00e9s) con el mismo metal en distintos mercados. 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