{"id":1025,"date":"2023-03-21T11:31:11","date_gmt":"2023-03-21T11:31:11","guid":{"rendered":"https:\/\/waldunsteel.com\/?post_type=portfolio&#038;p=1025"},"modified":"2023-11-13T02:46:38","modified_gmt":"2023-11-13T02:46:38","slug":"en8-acier","status":"publish","type":"portfolio","link":"https:\/\/waldunsteel.com\/fr\/products\/en8-steel\/","title":{"rendered":"Acier EN8 | BS970 080M40"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-6kar2p-4737c3a430f2e50485217882af747f12\">\n.flex_column.av-6kar2p-4737c3a430f2e50485217882af747f12{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-6kar2p-4737c3a430f2e50485217882af747f12 av_two_third  avia-builder-el-0  el_before_av_one_third  avia-builder-el-first  first flex_column_div av-zero-column-padding'     ><section  class='av_textblock_section av-kmj2wtde-45d9e3b45ad88bb6c162976c0bc6d0d8'  ><div class='avia_textblock' ><h1 style=\"text-align: center;\"><strong><b>Acier EN8 | <\/b><\/strong><strong><b>BS970 080M40<\/b><\/strong><\/h1>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-1027 size-full\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/EN8-forged-round-bar.jpg\" alt=\"barre ronde forg\u00e9e en8\" width=\"650\" height=\"487\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/EN8-forged-round-bar.jpg 650w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/EN8-forged-round-bar-300x225.jpg 300w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/EN8-forged-round-bar-16x12.jpg 16w\" sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/p>\n<p>L&#039;acier au carbone EN8 est de qualit\u00e9 britannique selon la norme BS 970.Il a une teneur moyenne en carbone avec 0,36-0,44%, ce qui lui conf\u00e8re une r\u00e9sistance \u00e0 la traction moyenne.L&#039;acier EN8 est g\u00e9n\u00e9ralement fourni \u00e0 l&#039;\u00e9tat non trait\u00e9 ou \u00e0 l&#039;\u00e9tat normalis\u00e9.Pour un processus ult\u00e9rieur, il peut \u00eatre \u00e0 la flamme ou tremp\u00e9 par induction pour produire une bonne duret\u00e9 de surface (50-55HRC) et une r\u00e9sistance \u00e0 l&#039;usure mod\u00e9r\u00e9e.Les mat\u00e9riaux EN8 sous leurs formes trait\u00e9es thermiquement poss\u00e8dent de bonnes structures m\u00e9tallurgiques homog\u00e8nes, donnant des propri\u00e9t\u00e9s d&#039;usinage stables, de sorte qu&#039;il peut \u00eatre facilement usin\u00e9 dans toutes les conditions.<\/p>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Formulaire d&#039;approvisionnement et taille et tol\u00e9rance<\/b><\/strong><\/h2>\n<p>Barre ronde forg\u00e9e \u00e0 chaud: \u03a6130-\u03a61000mm, longueur: 3000-10000mm<\/p>\n<p>Barre plate \/ Blcoks: \u00e9paisseur: 120-800 mm x largeur: 120-1500 mm, longueur: 2000-6000 mm<\/p>\n<table>\n<tbody>\n<tr>\n<td>Finition de surface<\/td>\n<td>Forg\u00e9 noir<\/td>\n<td>Noir roul\u00e9<\/td>\n<td>Tourn\u00e9<\/td>\n<td>Aff\u00fbtage<\/td>\n<td>Brillant<\/td>\n<td>Pel\u00e9<\/td>\n<td>\u00c9tir\u00e9 \u00e0 froid<\/td>\n<\/tr>\n<tr>\n<td>Tol\u00e9rance<\/td>\n<td>(0 \uff0c + 5 mm)<\/td>\n<td>(0 \uff0c + 1 mm)<\/td>\n<td>(0 \uff0c + 3 mm)<\/td>\n<td>Meilleur h9<\/td>\n<td>Meilleur h11<\/td>\n<td>Meilleur H11<\/td>\n<td>Meilleur H11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Composition chimique<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>Classe<\/td>\n<td>C<\/td>\n<td>Si<\/td>\n<td>Mn<\/td>\n<td>P<\/td>\n<td>S<\/td>\n<\/tr>\n<tr>\n<td>EN8 \/ 080M40<\/td>\n<td>0,36-0,44<\/td>\n<td>0,1-0,4<\/td>\n<td>0,60-1,0<\/td>\n<td>\u2264 0,05<\/td>\n<td>\u2264 0,05<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Normes pertinentes<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>Etats-Unis<\/td>\n<td>EN \/ DIN<\/td>\n<td>Japon<\/td>\n<\/tr>\n<tr>\n<td>1040\/1045<\/td>\n<td>C40 \/ CK40 \/ C45 \/ CK45 \/ 1.0511 \/ 1.1186 \/ 1.1189<\/td>\n<td>S40C \/ S45C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Propri\u00e9t\u00e9 m\u00e9canique<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>\u00c9tat<\/td>\n<td>N<\/td>\n<td>Q<\/td>\n<td>R<\/td>\n<\/tr>\n<tr>\n<td>Section de d\u00e9cision, mm<\/td>\n<td>254<\/td>\n<td>65<\/td>\n<td>20<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance \u00e0 la traction, Mpa<\/td>\n<td>510-540<\/td>\n<td>620-770<\/td>\n<td>690-850<\/td>\n<\/tr>\n<tr>\n<td>Limite d&#039;\u00e9lasticit\u00e9, Mpa<\/td>\n<td>\u2265 245<\/td>\n<td>\u2265385<\/td>\n<td>\u2265465<\/td>\n<\/tr>\n<tr>\n<td>\u00c9longation<\/td>\n<td>0.17<\/td>\n<td>0.16<\/td>\n<td>0.16<\/td>\n<\/tr>\n<tr>\n<td>Impact ISO V, J<\/td>\n<td>20<\/td>\n<td>33<\/td>\n<td>33<\/td>\n<\/tr>\n<tr>\n<td>Duret\u00e9, HBW<\/td>\n<td>152-207<\/td>\n<td>179-229<\/td>\n<td>201-255<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Forgeage de l&#039;acier EN8 \/ 080M40<\/b><\/strong><\/h2>\n<p>La temp\u00e9rature de forgeage autour de 1050 \u2103, mais ne forgez pas en dessous de 950 \u2103, l&#039;acier EN8 doit \u00eatre refroidi aussi lentement que possible \u00e0 l&#039;air calme (peut avoir des grains fins) ou dans le sable apr\u00e8s forg\u00e9.<\/p>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Traitement thermique<\/b><\/strong><\/h2>\n<ul>\n<li><b><\/b><strong><b>Normaliser<\/b><\/strong><\/li>\n<\/ul>\n<p>Chauffer l&#039;acier \u00e0 une temp\u00e9rature de 830 \u00e0 860 \u00b0 C, maintenir la temp\u00e9rature en fonction de la taille de l&#039;acier, puis refroidir \u00e0 l&#039;air calme.<\/p>\n<ul>\n<li><b><\/b><strong><b>Recuit<\/b><\/strong><\/li>\n<\/ul>\n<p>Chauffez lentement l&#039;acier EN8 \u00e0 680-710 \u00b0 C, maintenez la temp\u00e9rature stable. Refroidissez lentement dans le four.<\/p>\n<ul>\n<li><b><\/b><strong><b>Durcissement<\/b><\/strong><\/li>\n<\/ul>\n<p>Le durcissement de ce grade est r\u00e9alis\u00e9 \u00e0 partir d&#039;une temp\u00e9rature d&#039;aust\u00e9nitisation de 820-860 \u00b0 C suivie d&#039;une trempe \u00e0 l&#039;huile ou \u00e0 l&#039;eau.<\/p>\n<ul>\n<li><b><\/b><strong><b>Trempe<\/b><\/strong><\/li>\n<\/ul>\n<p>L&#039;acier au carbone EN8 ou 080m40 peut \u00eatre tremp\u00e9 \u00e0 une chaleur comprise entre 550 \u00b0 C et 660 \u00b0 C, en chauffant pendant environ 1 heure pour chaque pouce d&#039;\u00e9paisseur, puis refroidir dans de l&#039;huile ou de l&#039;eau.<\/p>\n<h2><strong><b>Acier EN8 <\/b><\/strong><strong><b>Application<\/b><\/strong><\/h2>\n<p>L&#039;acier EN8 est largement utilis\u00e9 dans les industries qui est utilis\u00e9 dans des applications o\u00f9 de meilleures propri\u00e9t\u00e9s que l&#039;acier doux sont n\u00e9cessaires.<\/p>\n<p><strong><b>Applications typiques:<\/b><\/strong><\/p>\n<ul>\n<li>Pi\u00e8ces automobiles<\/li>\n<li>Bielles<\/li>\n<li>Goujons, boulons<\/li>\n<li>Essieux, broches<\/li>\n<li>Composants d&#039;ing\u00e9nierie g\u00e9n\u00e9rale<\/li>\n<\/ul>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-43e3b5-f62701d9b3bbef7cbcb80ef8e9fbd75a\">\n.flex_column.av-43e3b5-f62701d9b3bbef7cbcb80ef8e9fbd75a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-43e3b5-f62701d9b3bbef7cbcb80ef8e9fbd75a av_one_third  avia-builder-el-2  el_after_av_two_third  avia-builder-el-last  flex_column_div av-zero-column-padding'     ><p><section  class='av_textblock_section av-kmj2twn6-79fd4ca8366417a6b6c6579c402a1419'  ><div class='avia_textblock' >\n<\/div><\/section><br \/>\n<div  class='avia-builder-widget-area clearfix  avia-builder-el-4  el_after_av_textblock  avia-builder-el-last'><section id=\"portfoliobox-2\" class=\"widget clearfix avia-widget-container newsbox\"><h3 class=\"widgettitle\">derniers produits<\/h3><ul class=\"news-wrap image_size_widget\"><li class=\"news-content post-format-standard\"><div class=\"news-link\"><a class='news-thumb' title=\"Lire : Acier 60CrMoV18-5\" href=\"https:\/\/waldunsteel.com\/fr\/products\/60crmov18-5-steel\/\"><img decoding=\"async\" fetchpriority=\"high\" width=\"36\" height=\"36\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-36x36.jpg\" class=\"wp-image-2212 avia-img-lazy-loading-not-2212 attachment-widget size-widget wp-post-image\" alt=\"1.2358\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-36x36.jpg 36w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-300x300.jpg 300w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-80x80.jpg 80w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-12x12.jpg 12w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-180x180.jpg 180w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-705x705.jpg 705w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358.jpg 750w\" sizes=\"(max-width: 36px) 100vw, 36px\" \/><\/a><div class=\"news-headline\"><a class='news-title' title=\"Lire : Acier 60CrMoV18-5\" href=\"https:\/\/waldunsteel.com\/fr\/products\/60crmov18-5-steel\/\">Acier 60CrMoV18-5<\/a><span class=\"news-time\">11 janvier 2024 - 3h02<\/span><\/div><\/div><\/li><li class=\"news-content post-format-standard\"><div class=\"news-link\"><a class='news-thumb' title=\"Lire : 1.2358 Acier\" href=\"https:\/\/waldunsteel.com\/fr\/products\/1-2358-steel\/\"><img decoding=\"async\" fetchpriority=\"high\" width=\"36\" height=\"36\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-36x36.jpg\" class=\"wp-image-2212 avia-img-lazy-loading-not-2212 attachment-widget size-widget wp-post-image\" alt=\"1.2358\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-36x36.jpg 36w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-300x300.jpg 300w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-80x80.jpg 80w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-12x12.jpg 12w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-180x180.jpg 180w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358-705x705.jpg 705w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2024\/01\/1.2358.jpg 750w\" sizes=\"(max-width: 36px) 100vw, 36px\" \/><\/a><div class=\"news-headline\"><a class='news-title' title=\"Lire : 1.2358 Acier\" href=\"https:\/\/waldunsteel.com\/fr\/products\/1-2358-steel\/\">1.2358 Acier<\/a><span class=\"news-time\">11 janvier 2024 - 02h55<\/span><\/div><\/div><\/li><li class=\"news-content post-format-standard\"><div class=\"news-link\"><a class='news-thumb' title=\"Lire : Acier lamin\u00e9 \u00e0 froid 1045\" href=\"https:\/\/waldunsteel.com\/fr\/products\/1045-cold-rolled-steel\/\"><img decoding=\"async\" fetchpriority=\"high\" width=\"36\" height=\"36\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/04\/SAE-1045-Carbon-Steel-Round-Bars-36x36.jpg\" class=\"wp-image-1365 avia-img-lazy-loading-not-1365 attachment-widget size-widget wp-post-image\" alt=\"barres rondes en acier au carbone sae 1045\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/04\/SAE-1045-Carbon-Steel-Round-Bars-36x36.jpg 36w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/04\/SAE-1045-Carbon-Steel-Round-Bars-80x80.jpg 80w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/04\/SAE-1045-Carbon-Steel-Round-Bars-180x180.jpg 180w\" sizes=\"(max-width: 36px) 100vw, 36px\" \/><\/a><div class=\"news-headline\"><a class='news-title' title=\"Lire : Acier lamin\u00e9 \u00e0 froid 1045\" href=\"https:\/\/waldunsteel.com\/fr\/products\/1045-cold-rolled-steel\/\">1045 Acier lamin\u00e9 \u00e0 froid<\/a><span class=\"news-time\">1 novembre 2023 - 11h32<\/span><\/div><\/div><\/li><li class=\"news-content post-format-standard\"><div class=\"news-link\"><a class='news-thumb' title=\"Lire : Acier 46Cr2 \/ 1.7006\" href=\"https:\/\/waldunsteel.com\/fr\/products\/46cr2-1-7006-steel\/\"><img decoding=\"async\" fetchpriority=\"high\" width=\"36\" height=\"36\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/08\/Steel-C60r-1-1223-Bar-or-Rod-for-Project-36x36.jpg\" class=\"wp-image-1810 avia-img-lazy-loading-not-1810 attachment-widget size-widget wp-post-image\" alt=\"Steel-C60r-1-1223-Bar-or-Rod-for-Project\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/08\/Steel-C60r-1-1223-Bar-or-Rod-for-Project-36x36.jpg 36w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/08\/Steel-C60r-1-1223-Bar-or-Rod-for-Project-80x80.jpg 80w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/08\/Steel-C60r-1-1223-Bar-or-Rod-for-Project-180x180.jpg 180w\" sizes=\"(max-width: 36px) 100vw, 36px\" \/><\/a><div class=\"news-headline\"><a class='news-title' title=\"Lire : Acier 46Cr2 \/ 1.7006\" href=\"https:\/\/waldunsteel.com\/fr\/products\/46cr2-1-7006-steel\/\">46Cr2 \/ 1.7006 Acier<\/a><span class=\"news-time\">24 octobre 2023 - 9h30<\/span><\/div><\/div><\/li><\/ul><span class=\"seperator extralight-border\"><\/span><\/section><section id=\"text-3\" class=\"widget clearfix widget_text\"><h3 class=\"widgettitle\">CONTACTER WALDUN STEEL<\/h3>\t\t\t<div class=\"textwidget\"><p><strong>Mobile: <\/strong><\/p>\n<p>+8618652469606<\/p>\n<p><strong>E-mail: <\/strong><\/p>\n<p>iguhongtao@gmail.com<\/p>\n<\/div>\n\t\t<span class=\"seperator extralight-border\"><\/span><\/section><section id=\"media_image-2\" class=\"widget clearfix widget_media_image\"><img decoding=\"async\" width=\"300\" height=\"158\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2022\/05\/Waldun-Steel-ISO-9001-Logo-300x158-1.png\" class=\"image wp-image-1937  attachment-full size-full\" alt=\"acier waldun logo iso 9001 300x158\" style=\"max-width: 100%; height: auto;\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2022\/05\/Waldun-Steel-ISO-9001-Logo-300x158-1.png 300w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2022\/05\/Waldun-Steel-ISO-9001-Logo-300x158-1-18x9.png 18w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><span class=\"seperator extralight-border\"><\/span><\/section><\/div><\/p><\/div><\/p>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":1027,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"portfolio_entries":[31,29],"class_list":["post-1025","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_entries-carbonsteel","portfolio_entries-engineeringsteel"],"_links":{"self":[{"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio\/1025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio"}],"about":[{"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/types\/portfolio"}],"author":[{"embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/comments?post=1025"}],"version-history":[{"count":0,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio\/1025\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/media\/1027"}],"wp:attachment":[{"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/media?parent=1025"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/tags?post=1025"},{"taxonomy":"portfolio_entries","embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio_entries?post=1025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}