{"id":2527,"date":"2017-11-30T12:41:17","date_gmt":"2017-11-30T15:41:17","guid":{"rendered":"https:\/\/www.nachodelatorre.com.ar\/mosconi\/?p=2527"},"modified":"2017-11-30T12:41:17","modified_gmt":"2017-11-30T15:41:17","slug":"nuevo-acero-super-resistente-para-armas-de-fuego","status":"publish","type":"post","link":"https:\/\/www.fie.undef.edu.ar\/ceptm\/?p=2527","title":{"rendered":"Nuevo acero &#8220;super resistente&#8221; para armas de fuego"},"content":{"rendered":"<p style=\"font-weight: 400;\">El fabricante franc\u00e9s de aceros de gran calidad AUBERT &amp; DUVAL ha presentado su nuevo acero aleado de alta pureza, que permitir\u00e1 que los ca\u00f1ones de armas de fuego sean m\u00e1s resistentes, posean mayor dureza y tengan una vida \u00fatil m\u00e1s prolongada. El nuevo producto, denominado ARMAD, es similar en su composici\u00f3n al que hoy emplea el fusil franc\u00e9s FAMAS,\u00a0 con el agregado de un 3% de Cromo. Pero lo m\u00e1s importante de \u00e9ste nuevo desarrollo, no es la composici\u00f3n del acero, sino el\u00a0<u>moderno m\u00e9todo de fabricaci\u00f3n<\/u>\u00a0\u00a0que garantiza muy bajos niveles de impurezas, dando como resultado una estructura de grano m\u00e1s fina y uniforme, que luego de tratamientos t\u00e9rmicos espec\u00edficos, permite obtener aceros m\u00e1s duros y resistentes que los convencionales empleados en armamento port\u00e1til.<!--more--><\/p>\n<p>French steelmaker Aubert &amp; Duval have announced a new high purity\u00a0<a href=\"http:\/\/www.thefirearmblog.com\/blog\/2015\/10\/13\/korean-scientists-develop-lightweight-steel-stronger-cheaper-than-titanium\/\" target=\"_blank\" rel=\"noopener noreferrer\">steel alloy<\/a>\u00a0that could allow future\u00a0<a class=\"vglnk\" title=\"Link added by VigLink\" href=\"https:\/\/www.brownells.com\/search\/index.htm?k=firearms\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">firearms<\/a>\u00a0barrels\u00a0to be stronger, be tougher, and last longer. The steel, called \u201cARMAD\u201d, is a 3% chromoly steel made with a similar composition to\u00a0their\u00a0<a href=\"https:\/\/www.aubertduval.com\/wp-media\/uploads\/sites\/2\/pdf\/gb_GKH.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">GKH (33CrMoV12-9) steel<\/a>\u00a0used for small\u00a0<a class=\"vglnk\" title=\"Link added by VigLink\" href=\"https:\/\/www.brownells.com\/search\/index.htm?k=arms\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">arms<\/a>\u00a0barrels,\u00a0<a href=\"http:\/\/www.thefirearmblog.com\/blog\/2017\/04\/06\/french-army-famas-hk416f-videos\/\" target=\"_blank\" rel=\"noopener noreferrer\">such as those used on\u00a0the FAMAS rifle<\/a>. Where ARMAD differs is in how it is made, rather than what it is made from. Aubert &amp; Duval has developed a very precise process that uses both electric arc furnace and laddle furnace stages,\u00a0which results in very low levels of impurities \u2013 significantly less than 50\u00a0parts\u00a0per million of phosphorous and less than 5\u00a0<a class=\"vglnk\" title=\"Link added by VigLink\" href=\"https:\/\/www.brownells.com\/search\/index.htm?k=parts\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">parts<\/a>\u00a0per million of sulfur. The high purity results in a steel with a finer and more uniform grain structure, which means it\u00a0can\u00a0be heat treated to higher hardnesses while retaining its strength \u2013 meaning\u00a0gun\u00a0barrels\u00a0made out of the stuff should last longer, while being both stronger and tougher than those made of more conventional steels. A technical article describing the new steel and the process to make it\u00a0<a href=\"https:\/\/www.forgefonderie.org\/fr\/la-federation\/la-revue-forge-fonderie\" target=\"_blank\" rel=\"noopener noreferrer\">has been published by Forge &amp; Fonderie magazine<\/a>, but Aubert &amp; Duval provided an English language document to TFB for publication:<\/p>\n<p>&nbsp;<\/p>\n<p>As this image shows, ARMAD\u2019s refined process results in a much more uniform grain structure than other steel grades. ARMAD shown in the green box on the left, 32CrMoV12-10 on the right:<\/p>\n<p><a href=\"http:\/\/www.thefirearmblog.com\/blog\/2017\/09\/01\/new-super-strong-barrel-steel-released-aubert-duval\/armadsteelmicrostructure\/\" rel=\"attachment wp-att-696130\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-696130\" src=\"http:\/\/www.thefirearmblog.com\/blog\/wp-content\/uploads\/2017\/08\/ARMADsteelmicrostructure.png\" sizes=\"(max-width: 708px) 100vw, 708px\" srcset=\"http:\/\/www.thefirearmblog.com\/blog\/wp-content\/uploads\/2017\/08\/ARMADsteelmicrostructure.png 708w, http:\/\/www.thefirearmblog.com\/blog\/wp-content\/uploads\/2017\/08\/ARMADsteelmicrostructure-390x155.png 390w, http:\/\/www.thefirearmblog.com\/blog\/wp-content\/uploads\/2017\/08\/ARMADsteelmicrostructure-660x263.png 660w\" alt=\"\" width=\"708\" height=\"282\" \/><\/a><\/p>\n<p>You can\u2019t buy\u00a0<a class=\"vglnk\" title=\"Link added by VigLink\" href=\"https:\/\/www.brownells.com\/search\/index.htm?k=barrels\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">barrels<\/a>\u00a0made out of ARMAD just yet, but Aubert &amp; Duval has sent material to several\u00a0<a class=\"vglnk\" title=\"Link added by VigLink\" href=\"https:\/\/www.brownells.com\/search\/index.htm?k=barrel\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">barrel<\/a>\u00a0manufacturers in both the United States and Europe for testing. Maybe someday, high hardness steels of this type will be standard for small\u00a0arms\u00a0<a class=\"vglnk\" title=\"Link added by VigLink\" href=\"https:\/\/www.brownells.com\/search\/index.htm?k=barrels\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">barrels<\/a>, who knows?<\/p>\n<p style=\"font-weight: 400;\">Fuente: <em><a href=\"http:\/\/www.thefirearmblog.com\/blog\/2017\/09\/01\/new-super-strong-barrel-steel-released-aubert-duval\/?utm_source=Newsletter&amp;utm_medium=Email&amp;utm_content=2017-09-05&amp;utm_campaign=Weekly+Newsletter\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.thefirearmblog.com<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El fabricante franc\u00e9s de aceros de gran calidad AUBERT &amp; DUVAL ha presentado su nuevo acero aleado de alta pureza, que permitir\u00e1 que los ca\u00f1ones&hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[18,29],"tags":[],"_links":{"self":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/2527"}],"collection":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2527"}],"version-history":[{"count":0,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=\/wp\/v2\/posts\/2527\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2527"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2527"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fie.undef.edu.ar\/ceptm\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2527"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}