{"id":2434,"date":"2026-01-22T10:12:22","date_gmt":"2026-01-22T09:12:22","guid":{"rendered":"https:\/\/www.nickelcasting.com\/?p=2434"},"modified":"2026-01-30T03:01:46","modified_gmt":"2026-01-30T02:01:46","slug":"hastelloy-x-vs-inconel-718","status":"publish","type":"post","link":"https:\/\/www.nickelcasting.com\/it\/hastelloy-x-vs-inconel-718\/","title":{"rendered":"Hastelloy X vs Inconel 718"},"content":{"rendered":"<p>La scelta della giusta superlega a base di nichel \u00e8 fondamentale per il settore aerospaziale, la produzione di energia e la lavorazione chimica. Due dei principali contendenti sono <b data-path-to-node=\"0\" data-index-in-node=\"154\"><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/hastelloy-nickel-alloys\/hastelloy-x\/\">Hastelloy X<\/a><\/b> e <b data-path-to-node=\"0\" data-index-in-node=\"170\"><a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/ligas-de-niquel-inconel\/inconel-718\/\">Inconel 718<\/a><\/b>. Entrambi offrono prestazioni eccezionali, ma hanno ruoli meccanici e termici molto diversi.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-2435\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/66.jpg\" alt=\"\" width=\"1200\" height=\"655\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/66.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/66-300x164.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/66-1024x559.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/66-768x419.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/66-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h3 data-path-to-node=\"2\">Hastelloy X vs 718 a confronto<\/h3>\n<p data-path-to-node=\"3\">A livello molecolare, la differenza fondamentale tra <b data-path-to-node=\"3\" data-index-in-node=\"59\">Hastelloy X<\/b> e <b data-path-to-node=\"3\" data-index-in-node=\"75\">Inconel 718<\/b> Il loro meccanismo di rinforzo \u00e8 il seguente. L'Hastelloy X \u00e8 un <b data-path-to-node=\"3\" data-index-in-node=\"144\">solido-soluzione rafforzato<\/b> (prevalentemente Nichel-Cromo-Ferro-Molibdeno), mentre l'Inconel 718 \u00e8 una lega di <b data-path-to-node=\"3\" data-index-in-node=\"252\">indurente per precipitazione<\/b> (indurito dall'et\u00e0).<\/p>\n<p data-path-to-node=\"4\">L'Inconel 718 contiene quantit\u00e0 significative di niobio (<span class=\"math-inline\" data-math=\"Nb\" data-index-in-node=\"53\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">N<\/span><span class=\"mord mathnormal\">b<\/span><\/span><\/span><\/span><\/span>) e titanio (<span class=\"math-inline\" data-math=\"Ti\" data-index-in-node=\"71\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord mathnormal\">T<\/span><span class=\"mord mathnormal\">i<\/span><\/span><\/span><\/span><\/span>), che formano i primi gamma (<span class=\"math-inline\" data-math=\"\\gamma'\" data-index-in-node=\"100\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) e gamma double-prime (<span class=\"math-inline\" data-math=\"\\gamma''\" data-index-in-node=\"133\"><span class=\"katex\"><span class=\"katex-html\" aria-hidden=\"true\"><span class=\"base\"><span class=\"mord\"><span class=\"mord mathnormal\">\u03b3<\/span><span class=\"msupsub\"><span class=\"vlist-t\"><span class=\"vlist-r\"><span class=\"vlist\"><span class=\"\"><span class=\"sizing reset-size6 size3 mtight\"><span class=\"mord mtight\">\u2032\u2032<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span>) precipita. Ci\u00f2 lo rende significativamente pi\u00f9 duro e pi\u00f9 forte dell'Hastelloy X a temperature ambiente e moderate. D'altra parte, l'Hastelloy X si concentra su <b data-path-to-node=\"4\" data-index-in-node=\"299\">resistenza all'ossidazione<\/b> e <b data-path-to-node=\"4\" data-index-in-node=\"324\">fabbricabilit\u00e0<\/b>, making it a &#8220;workhorse&#8221; for components that need to withstand extreme heat without necessarily carrying heavy structural loads.<\/p>\n<table data-path-to-node=\"5\">\n<thead>\n<tr>\n<td><strong>Propriet\u00e0<\/strong><\/td>\n<td><strong>Hastelloy X (UNS N06002)<\/strong><\/td>\n<td><strong>Inconel 718 (UNS N07718)<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"5,1,0,0\"><b data-path-to-node=\"5,1,0,0\" data-index-in-node=\"0\">Meccanismo di forza primaria<\/b><\/span><\/td>\n<td><span data-path-to-node=\"5,1,1,0\">Soluzione solida<\/span><\/td>\n<td><span data-path-to-node=\"5,1,2,0\">Indurimento per precipitazione<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"5,2,0,0\"><b data-path-to-node=\"5,2,0,0\" data-index-in-node=\"0\">Densit\u00e0 (<span class=\"math-inline\" data-math=\"g\/cm^3\" data-index-in-node=\"9\">$g\/cm^3$<\/span>)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"5,2,1,0\">8.22<\/span><\/td>\n<td><span data-path-to-node=\"5,2,2,0\">8.19<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"5,3,0,0\"><b data-path-to-node=\"5,3,0,0\" data-index-in-node=\"0\">Intervallo di fusione<\/b><\/span><\/td>\n<td><span data-path-to-node=\"5,3,1,0\">2300-2470\u00b0F (1260-1355\u00b0C)<\/span><\/td>\n<td><span data-path-to-node=\"5,3,2,0\">2300-2437\u00b0F (1260-1336\u00b0C)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"5,4,0,0\"><b data-path-to-node=\"5,4,0,0\" data-index-in-node=\"0\">Resistenza allo snervamento (a 1200\u00b0F)<\/b><\/span><\/td>\n<td><span data-path-to-node=\"5,4,1,0\">~35.000 psi (240 MPa)<\/span><\/td>\n<td><span data-path-to-node=\"5,4,2,0\">~150.000 psi (1030 MPa)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"5,5,0,0\"><b data-path-to-node=\"5,5,0,0\" data-index-in-node=\"0\">Limite massimo di ossidazione<\/b><\/span><\/td>\n<td><span data-path-to-node=\"5,5,1,0\">2200\u00b0F (1200\u00b0C)<\/span><\/td>\n<td><span data-path-to-node=\"5,5,2,0\">1300\u00b0F (704\u00b0C)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 data-path-to-node=\"7\">Hastelloy X vs 718 Resistenza alle alte temperature<\/h3>\n<p data-path-to-node=\"8\">Quando si analizza <b data-path-to-node=\"8\" data-index-in-node=\"15\">Hastelloy X vs 718 resistenza alle alte temperature<\/b>, you must distinguish between &#8220;load-bearing strength&#8221; and &#8220;environmental survival.&#8221;<\/p>\n<ul data-path-to-node=\"9\">\n<li>\n<p data-path-to-node=\"9,0,0\"><b data-path-to-node=\"9,0,0\" data-index-in-node=\"0\">Inconel 718<\/b> \u00e8 il re dell'integrit\u00e0 strutturale fino a <b data-path-to-node=\"9,0,0\" data-index-in-node=\"54\">1300\u00b0F (700\u00b0C)<\/b>. Mantiene incredibili propriet\u00e0 di resistenza allo scorrimento e alla trazione. Tuttavia, una volta che le temperature superano questa soglia, i precipitati che conferiscono al 718 la sua resistenza iniziano a coagularsi (overage) e il materiale perde rapidamente il suo vantaggio strutturale.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"9,1,0\"><b data-path-to-node=\"9,1,0\" data-index-in-node=\"0\">Hastelloy X<\/b> non ha lo stesso picco di snervamento del 718, ma offre una stabilit\u00e0 superiore a temperature molto pi\u00f9 elevate. Offre un'eccezionale <b data-path-to-node=\"9,1,0\" data-index-in-node=\"149\">resistenza all'ossidazione<\/b> fino a <b data-path-to-node=\"9,1,0\" data-index-in-node=\"176\">2200\u00b0F (1200\u00b0C)<\/b>. Resiste alla carburazione e alla nitrurazione, che sono modalit\u00e0 di guasto comuni nelle zone di combustione delle turbine a gas.<\/p>\n<\/li>\n<\/ul>\n<h3 data-path-to-node=\"11\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-2436\" src=\"http:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/67.jpg\" alt=\"\" width=\"1200\" height=\"655\" srcset=\"https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/67.jpg 1200w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/67-300x164.jpg 300w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/67-1024x559.jpg 1024w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/67-768x419.jpg 768w, https:\/\/www.nickelcasting.com\/wp-content\/uploads\/2026\/01\/67-18x10.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/h3>\n<h3 data-path-to-node=\"11\">Hastelloy X vs 718 Come scegliere<\/h3>\n<p data-path-to-node=\"12\">La decisione su <b data-path-to-node=\"12\" data-index-in-node=\"16\">Hastelloy X vs 718 come scegliere<\/b> di solito dipende dalla temperatura di esercizio e dai requisiti strutturali del pezzo.<\/p>\n<ol start=\"1\" data-path-to-node=\"13\">\n<li>\n<p data-path-to-node=\"13,0,0\"><b data-path-to-node=\"13,0,0\" data-index-in-node=\"0\">Selezionare Inconel 718 se:<\/b> Progettate componenti ad alta sollecitazione come dischi di turbine, elementi di fissaggio o serbatoi criogenici, dove la resistenza allo snervamento e alla fatica sono le priorit\u00e0 principali al di sotto dei 1300\u00b0F.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,1,0\"><b data-path-to-node=\"13,1,0\" data-index-in-node=\"0\">Selezionare Hastelloy X se:<\/b> You are designing &#8220;hot-section&#8221; components like combustion liners, afterburners, or furnace retorts. If the part must survive in an oxidizing environment above 1500\u00b0F, Hastelloy X is the safer, more durable choice.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"13,2,0\"><b data-path-to-node=\"13,2,0\" data-index-in-node=\"0\">Esigenze di fabbricazione:<\/b> L'Hastelloy X \u00e8 generalmente pi\u00f9 facile da saldare e formare. L'Inconel 718, pur essendo saldabile, \u00e8 pi\u00f9 suscettibile alle cricche da deformazione e richiede un rigoroso trattamento termico post-saldatura (PWHT) per raggiungere la sua piena resistenza.<\/p>\n<\/li>\n<\/ol>\n<hr data-path-to-node=\"14\" \/>\n<h3 data-path-to-node=\"15\">Domande e risposte correlate<\/h3>\n<p data-path-to-node=\"16\"><b data-path-to-node=\"16\" data-index-in-node=\"0\">Q1: L'Inconel 718 pu\u00f2 essere utilizzato per le muffole dei forni?<\/b> In generale, no. Sebbene il 718 sia resistente, non \u00e8 ottimizzato per l'ossidazione costante ad alta temperatura che si verifica nei forni. Hastelloy X o <a href=\"https:\/\/www.nickelcasting.com\/pt\/ligas-de-niquel\/ligas-de-niquel-inconel\/inconel-600\/\">Inconel 600<\/a> sono pi\u00f9 adatti ad ambienti di forno non strutturali.<\/p>\n<p data-path-to-node=\"17\"><b data-path-to-node=\"17\" data-index-in-node=\"0\">D2: Hastelloy X \u00e8 pi\u00f9 costoso di Inconel 718?<\/b> I prezzi fluttuano in base ai mercati del molibdeno e del nichel, ma l'Hastelloy X ha spesso un sovrapprezzo a causa del suo contenuto di molibdeno specializzato e del volume di produzione inferiore rispetto all'Inconel 718, ampiamente utilizzato.<\/p>\n<p data-path-to-node=\"18\"><b data-path-to-node=\"18\" data-index-in-node=\"0\">D3: Quale lega \u00e8 migliore per le applicazioni criogeniche?<\/b> L'Inconel 718 \u00e8 eccezionalmente adatto alle temperature criogeniche, in quanto mantiene un'elevata tenacit\u00e0 e resistenza senza diventare fragile, il che lo rende uno standard per i sistemi a propellente liquido per razzi.<\/p>\n<p data-path-to-node=\"4\">","protected":false},"excerpt":{"rendered":"<p>Choosing the right nickel-based superalloy is critical for aerospace, power generation, and chemical processing. Two of the most prominent contenders are Hastelloy X and Inconel 718. While both offer exceptional performance, they serve very different mechanical and thermal roles. Hastelloy X vs 718 Comparison At the molecular level, the fundamental difference between Hastelloy X and [&hellip;]<\/p>","protected":false},"author":1,"featured_media":2435,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","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":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2434","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"spectra_custom_meta":{"_edit_lock":["1769738364:1"],"_edit_last":["1"],"rank_math_internal_links_processed":["1"],"rank_math_seo_score":["57"],"rank_math_description":["Compare Hastelloy X and Inconel 718 in strengthening mechanisms, high-temperature performance, oxidation resistance, and applications."],"rank_math_focus_keyword":["hastelloy x vs inconel 718"],"_thumbnail_id":["2435"],"_wp_page_template":["default"],"site-sidebar-layout":["default"],"ast-site-content-layout":["default"],"site-content-style":["default"],"site-sidebar-style":["default"],"theme-transparent-header-meta":["default"],"ilj_blacklistdefinition":["a:0:{}"],"ilj_linkdefinition":["a:1:{i:0;s:26:\"Hastelloy X vs Inconel 718\";}"],"astra-migrate-meta-layouts":["set"],"_uag_page_assets":["a:9:{s:3:\"css\";s:263:\".uag-blocks-common-selector{z-index:var(--z-index-desktop) !important}@media (max-width: 976px){.uag-blocks-common-selector{z-index:var(--z-index-tablet) !important}}@media (max-width: 767px){.uag-blocks-common-selector{z-index:var(--z-index-mobile) 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the right nickel-based superalloy is critical for aerospace, power generation, and chemical processing. Two of the most prominent contenders are Hastelloy X and Inconel 718. While both offer exceptional performance, they serve very different mechanical and thermal roles. Hastelloy X vs 718 Comparison At the molecular level, the fundamental difference between Hastelloy X and&hellip;","_links":{"self":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/posts\/2434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/comments?post=2434"}],"version-history":[{"count":2,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/posts\/2434\/revisions"}],"predecessor-version":[{"id":2438,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/posts\/2434\/revisions\/2438"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/media\/2435"}],"wp:attachment":[{"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/media?parent=2434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/categories?post=2434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nickelcasting.com\/it\/wp-json\/wp\/v2\/tags?post=2434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}