{"id":48612,"date":"2025-12-02T10:00:16","date_gmt":"2025-12-02T09:00:16","guid":{"rendered":"https:\/\/www.bonomiacciai.it\/?p=48612"},"modified":"2025-12-02T10:01:00","modified_gmt":"2025-12-02T09:01:00","slug":"thermodur-e40k-evoluzione-del-1-2344-contro-la-fatica-termica","status":"publish","type":"post","link":"https:\/\/www.bonomiacciai.it\/en\/thermodur-e40k-evoluzione-del-1-2344-contro-la-fatica-termica\/","title":{"rendered":"Thermodur\u00ae E40K Superclean: The Definitive Answer to Thermal Fatigue"},"content":{"rendered":"<div class=\"wpb-content-wrapper\">[vc_row][vc_column][vc_column_text css=&#8221;&#8221;]We continue our column &#8220;Specialty as Normality&#8221; with a steel that has transformed the management of the number one criticality in the foundry: thermal fatigue (heat checking). We are talking about <b>Thermodur\u00ae E40K Superclean<\/b>. While standard steels like <b>1.2343 (H11)<\/b> and <b>1.2344 (H13)<\/b> have represented the backbone of die casting for decades, the evolution of processes and the demand for increasingly intensive cycles have made a leap in quality necessary. E40K was born precisely here: where standards reach their limit of thermal fatigue resistance.[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column width=&#8221;1\/5&#8243;][\/vc_column][vc_column width=&#8221;3\/5&#8243;][vc_single_image image=&#8221;48609&#8243; style=&#8221;vc_box_shadow&#8221; onclick=&#8221;custom_link&#8221; css=&#8221;&#8221; link=&#8221;https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2023\/08\/E40K_Thermodur-ITA.pdf&#8221;][\/vc_column][vc_column width=&#8221;1\/5&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=&#8221;&#8221;]\n<p style=\"text-align: center;\">The official technical datasheet of Thermodur\u00ae E40K Superclean.<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/www.bonomiacciai.it\/wp-content\/uploads\/2023\/08\/E40K_Thermodur-ITA.pdf\"><strong>Click here to download the full technical datasheet in PDF<\/strong><\/a><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"vcex-module vcex-divider vcex-divider-solid vcex-divider-center wpex-mx-auto wpex-block wpex-h-0 wpex-border-b wpex-border-solid wpex-border-main\" style=\"border-color:#ebebeb;\"><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Beyond 1.2344: A New Standard of Resistance&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]\n<p data-path-to-node=\"6\">Why consider E40K a necessary &#8220;normality&#8221; and not just a special steel? The answer lies in the direct comparison with the materials you use daily. Comparative tests, conducted both in research laboratories and in real applications (as documented in our scientific papers), show substantial differences:<\/p>\n<ul>\n<li data-path-to-node=\"7,0,0\"><b>Compared to 1.2343 (H11):<\/b> E40K offers superior hot strength while maintaining the high toughness that often makes H11 preferred for large dies.<\/li>\n<li data-path-to-node=\"7,1,0\"><b>Compared to 1.2344 (H13):<\/b> The performance leap is evident in the resistance to crack propagation. Where H13 begins to show the classic &#8220;crocodile skin&#8221; (heat checking), E40K resists longer, delaying initiation and slowing the growth of the cracks themselves.<\/li>\n<\/ul>\n<p data-path-to-node=\"8\">In summary: E40K combines the toughness needed to avoid sudden breakage (catastrophic failure) with the thermal resistance essential for lasting over time.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"vcex-module vcex-divider vcex-divider-solid vcex-divider-center wpex-mx-auto wpex-block wpex-h-0 wpex-border-b wpex-border-solid wpex-border-main\" style=\"border-color:#ebebeb;\"><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Scientific Validation of Thermodur E40K Superclean: The Data&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]The superiority of this material is the result of years of research and field tests, validated by the most important institutions in the sector.<\/p>\n<p>We have collected the most relevant technical documentation for you to delve into every aspect:[\/vc_column_text][vc_empty_space height=&#8221;16px&#8221;][vc_custom_heading text=&#8221;1. The NADCA 2024 Scientific Paper&#8221; font_container=&#8221;tag:h2|font_size:18px|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Presented at the American congress last year, this study details E40K\u2019s performance with real case studies on automotive and structural components.[\/vc_column_text][vc_row_inner][vc_column_inner width=&#8221;1\/6&#8243;][\/vc_column_inner][vc_column_inner width=&#8221;2\/3&#8243;][vc_empty_space height=&#8221;16px&#8221;][vc_single_image image=&#8221;48473&#8243; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]\n<p style=\"text-align: center;\">Do you want to receive the full scientific paper &#8220;Heat Check Resistance Hot Work Tool Steel&#8221;?<\/p>\n<p style=\"text-align: center;\">Write directly to our Eng. Andrea Magistrelli to request a copy. \ud83d\udce9\u00a0 <u><a href=\"mailto:a.magistrelli@bonomiacciai.com\">Send a request via email to a.magistrelli@bonomiacciai.it<\/a><\/u><\/p>\n[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/6&#8243;][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=&#8221;16px&#8221;][vc_custom_heading text=&#8221;2. Technical Analysis in &#8220;La Metallurgia Italiana&#8220;&#8221; font_container=&#8221;tag:h2|font_size:18px|text_align:left&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]An in-depth analysis (in Italian), curated by our technical department, analyzing resilience tests and tempering curves compared to grades 1.2343 and 1.2344.[\/vc_column_text][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]\n<p style=\"text-align: center;\"><strong>Read the dedicated article on our blog:<\/strong><\/p>\n<p style=\"text-align: center;\">\ud83d\udc49 <a href=\"https:\/\/www.bonomiacciai.it\/resistenza-alla-fatica-termica-lanalisi-tecnica-del-thermodur-e40k-superclean\/\">Thermal Fatigue Resistance: The Technical Analysis of Thermodur E40K Superclean<\/a><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"vcex-module vcex-divider vcex-divider-solid vcex-divider-center wpex-mx-auto wpex-block wpex-h-0 wpex-border-b wpex-border-solid wpex-border-main\" style=\"border-color:#ebebeb;\"><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;When to Choose E40K?&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]\n<p data-path-to-node=\"18\">Switching from 1.2344 to E40K becomes strategic when:<\/p>\n<ul>\n<li data-path-to-node=\"19,0,0\">Die life is prematurely limited by <b>thermal fatigue<\/b>.<\/li>\n<li data-path-to-node=\"19,1,0\">Producing <b>large castings<\/b> with dies that require high toughness.<\/li>\n<li data-path-to-node=\"19,2,0\">You want to reduce the frequency of maintenance for polishing or die restoration.<\/li>\n<\/ul>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column]<div class=\"vcex-module vcex-divider vcex-divider-solid vcex-divider-center wpex-mx-auto wpex-block wpex-h-0 wpex-border-b wpex-border-solid wpex-border-main\" style=\"border-color:#ebebeb;\"><\/div>[\/vc_column][\/vc_row][vc_row][vc_column][vc_custom_heading text=&#8221;Thermodur\u00ae E40K Superclean: The Continuity of a Winning Choice&#8221; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_empty_space height=&#8221;16px&#8221;][vc_column_text css=&#8221;&#8221;]Considering Thermodur\u00ae E40K Superclean only as a &#8220;special&#8221; steel means limiting your foundry&#8217;s potential. Today, for those seeking efficiency and durability, <b>this material represents the new benchmark standard<\/b>. Bonomi Acciai, partner of <a href=\"https:\/\/swisssteel-group.com\/it\">Swiss Steel Group<\/a>, is at your disposal to analyze your application and evaluate the switch to new high-performance grades.[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=&#8221;stretch_row_content&#8221; css=&#8221;.vc_custom_1717678542423{background-color: #ebebeb !important;}&#8221; visibility=&#8221;hidden-phone&#8221;][vc_column]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_custom_heading text=&#8221;Want to learn more?&#8221; font_container=&#8221;tag:h2|font_size:46px|text_align:center|color:%23172028&#8243; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;][vc_column_text css=&#8221;&#8221;]\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\">\n<div class=\"flex-shrink-0 flex flex-col relative items-end\">\n<div class=\"pt-0\">\n<div class=\"gizmo-bot-avatar flex h-8 w-8 items-center justify-center overflow-hidden rounded-full\">\n<div class=\"relative p-1 rounded-sm flex items-center justify-center bg-token-main-surface-primary text-token-text-primary h-8 w-8\">\n<h3 style=\"text-align: center;\">Do you want to delve into the technical details of this research or evaluate the application of Thermodur\u00ae E40K Superclean in your processes?<\/h3>\n<h3 style=\"text-align: center;\"><strong>Fill out the form below to receive more information and about its applications.<\/strong><\/h3>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n[\/vc_column_text]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_custom_heading text=&#8221;Contact our technical office:&#8221; 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css=&#8221;.vc_custom_1717678552691{background-color: #ebebeb !important;}&#8221; visibility=&#8221;visible-phone&#8221;][vc_column]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_custom_heading text=&#8221;Do you want to delve into the technical details of this research or evaluate the application of Thermodur\u00ae E40K Superclean in your processes?&#8221; font_container=&#8221;tag:h2|font_size:35px|text_align:center|color:%23172028&#8243; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_single_image image=&#8221;46368&#8243; img_size=&#8221;1080&#215;1080&#8243; alignment=&#8221;center&#8221; css=&#8221;&#8221;]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:35px;\"><\/div>[vc_custom_heading text=&#8221;Daniele Magistroni&#8221; font_container=&#8221;tag:h2|font_size:26px|text_align:center|color:%23282828&#8243; google_fonts=&#8221;font_family:Arimo%3Aregular%2Citalic%2C700%2C700italic|font_style:700%20bold%20regular%3A700%3Anormal&#8221; css_animation=&#8221;none&#8221;][vc_custom_heading text=&#8221;Powder &amp; Cold Work Tool Steels Application Manager&#8221; font_container=&#8221;tag:h2|font_size:19px|text_align:center|color:%23282828&#8243; google_fonts=&#8221;font_family:Arimo%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal&#8221; css_animation=&#8221;none&#8221;]<style>.vcex-social-links.vcex_6a8f5cdeaca43{font-size:20px;}.vcex-social-links.vcex_6a8f5cdeaca43 .vcex-social-links__item{color:#282828;}.vcex-social-links.vcex_6a8f5cdeaca43 .vcex-social-links__item:hover{color:#4a6670;}<\/style><div class=\"vcex-social-links vcex-module wpex-flex wpex-flex-wrap wpex-social-btns vcex-social-btns wpex-items-center wpex-justify-center wpex-gap-5 wpex-last-mr-0 vcex_6a8f5cdeaca43\"><a href=\"mailto:d&#046;&#109;a&#103;is&#116;ro&#110;i&#064;bo&#110;&#111;&#109;&#105;&#097;&#099;ci&#097;&#105;.i&#116;\" class=\"vcex-social-links__item wpex-social-btn wpex-social-btn-no-style wpex-has-custom-color wpex-email\"><span class=\"vcex-social-links__icon wpex-icon\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 512 512\"><path d=\"M48 64C21.5 64 0 85.5 0 112c0 15.1 7.1 29.3 19.2 38.4L236.8 313.6c11.4 8.5 27 8.5 38.4 0L492.8 150.4c12.1-9.1 19.2-23.3 19.2-38.4c0-26.5-21.5-48-48-48H48zM0 176V384c0 35.3 28.7 64 64 64H448c35.3 0 64-28.7 64-64V176L294.4 339.2c-22.8 17.1-54 17.1-76.8 0L0 176z\"\/><\/svg><\/span><span class=\"screen-reader-text\">Email<\/span><\/a><a href=\"https:\/\/www.linkedin.com\/in\/daniele-magistroni-37b803ab\/\" class=\"vcex-social-links__item wpex-social-btn wpex-social-btn-no-style wpex-has-custom-color wpex-linkedin\"><span class=\"vcex-social-links__icon wpex-icon\" aria-hidden=\"true\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 448 512\"><path d=\"M100.3 448H7.4V148.9h92.9zM53.8 108.1C24.1 108.1 0 83.5 0 53.8a53.8 53.8 0 0 1 107.6 0c0 29.7-24.1 54.3-53.8 54.3zM447.9 448h-92.7V302.4c0-34.7-.7-79.2-48.3-79.2-48.3 0-55.7 37.7-55.7 76.7V448h-92.8V148.9h89.1v40.8h1.3c12.4-23.5 42.7-48.3 87.9-48.3 94 0 111.3 61.9 111.3 142.3V448z\"\/><\/svg><\/span><span class=\"screen-reader-text\">LinkedIn<\/span><\/a><\/div><div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:24px;\"><\/div><div class=\"vcex-module vcex-divider vcex-divider-solid vcex-divider-center wpex-mx-auto wpex-max-w-100 wpex-block wpex-h-0 wpex-border-b wpex-border-solid wpex-border-main\" style=\"width:250px;margin-block:15px;border-color:#282828;\"><\/div><div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:24px;\"><\/div>[vc_custom_heading text=&#8221;Oppure compila il modulo sottostante per ricevere maggiori informazioni e sulle sue applicazioni.&#8221; font_container=&#8221;tag:h2|font_size:35px|text_align:center|color:%23172028&#8243; use_theme_fonts=&#8221;yes&#8221; css=&#8221;&#8221;]<div class=\"vcex-spacing wpex-w-100 wpex-clear\" style=\"height:24px;\"><\/div>\n<div class=\"wpcf7 no-js\" id=\"wpcf7-f44579-o2\" lang=\"it-IT\" dir=\"ltr\" data-wpcf7-id=\"44579\">\n<div class=\"screen-reader-response\"><p role=\"status\" aria-live=\"polite\" aria-atomic=\"true\"><\/p> <ul><\/ul><\/div>\n<form action=\"\/en\/wp-json\/wp\/v2\/posts\/48612#wpcf7-f44579-o2\" method=\"post\" class=\"wpcf7-form init\" aria-label=\"Modulo di contatto\" novalidate=\"novalidate\" data-status=\"init\">\n<fieldset class=\"hidden-fields-container\"><input type=\"hidden\" name=\"_wpcf7\" value=\"44579\" \/><input type=\"hidden\" name=\"_wpcf7_version\" value=\"6.1.7\" \/><input type=\"hidden\" name=\"_wpcf7_locale\" value=\"it_IT\" \/><input type=\"hidden\" name=\"_wpcf7_unit_tag\" value=\"wpcf7-f44579-o2\" \/><input type=\"hidden\" name=\"_wpcf7_container_post\" value=\"0\" \/><input type=\"hidden\" name=\"_wpcf7_posted_data_hash\" value=\"\" \/>\n<\/fieldset>\n<style>\n.contact-form-wrapper {\n background: white; 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with a steel that has transformed the management of the number one criticality in the foundry: thermal fatigue (heat checking). We are talking about Thermodur\u00ae E40K Superclean. While standard steels like 1.2343 (H11) and 1.2344 (H13) have represented the backbone of die casting for decades, the evolution&hellip;<\/p>\n","protected":false},"author":1,"featured_media":48615,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2595,9,14,2615,2494,2484,32],"tags":[2637,2597,11,598,2607,2638,2640,294,1677,2639,431],"post_series":[],"class_list":["post-48612","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aim","category-blog","category-home","category-lavorazioni-a-caldo","category-nadca","category-pressocolata","category-prodotti","tag-1-2343","tag-1-2344","tag-bonomi-acciai","tag-die-casting","tag-h11","tag-h13","tag-heat-checking","tag-nadca","tag-swiss-steel-group","tag-thermal-fatigue","tag-thermodur-e40k-superclean","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.8 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Thermodur\u00ae E40K: Evoluzione del 1.2344 contro la Fatica Termica<\/title>\n<meta name=\"description\" content=\"Thermodur\u00ae E40K: l&#039;acciaio che supera 1.2343 e 1.2344 nella resistenza alla fatica termica. 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