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<\/figure>\n\n\n\nApr\u00e8s avoir rev\u00eatu les \u00e9quipements de s\u00e9curit\u00e9 obligatoires \u2014 chaussures, veste, casque, lunettes et gants \u2014 nous avons embarqu\u00e9 dans des cars affr\u00e9t\u00e9s par l\u2019entreprise afin de parcourir les diff\u00e9rents secteurs du site.<\/p>\n\n\n\n Le site ArcelorMittal de Dunkerque<\/strong><\/p>\n\n\n\n Construit en 1962, le site b\u00e9n\u00e9ficie d\u2019une situation g\u00e9ographique strat\u00e9gique facilitant l\u2019approvisionnement en minerai de fer et en charbon par voie maritime, la digue du Braeck fait ainsi partie du site.<\/p>\n\n\n\n Il s\u2019agit de l\u2019un des plus grands sites sid\u00e9rurgiques d\u2019Europe. Il emploie environ 3350 salari\u00e9s et produit chaque ann\u00e9e pr\u00e8s de 7 millions de tonnes d\u2019acier.<\/p>\n\n\n\n Aujourd\u2019hui, les hauts-fourneaux HF3 (6000 tonnes quotidiennes) et HF4 (10000 tonnes quotidiennes) sont en fonctionnement. HF1 a \u00e9t\u00e9 arr\u00eat\u00e9 lors de la modernisation de l\u2019usine dans les ann\u00e9es 1970-1980 et HF2 n\u2019est plus utilis\u00e9 depuis sa derni\u00e8re maintenance en 2015.<\/p>\n\n\n\n Un grand four \u00e9lectrique (EAF) doit remplacer l\u2019un des hauts-fourneaux \u00e0 l\u2019horizon 2029. Cette \u00e9volution vise \u00e0 r\u00e9duire fortement les \u00e9missions de CO\u2082 de la sid\u00e9rurgie, mais tous les aciers ne peuvent \u00eatre fabriqu\u00e9s dans un four \u00e9lectrique.<\/p>\n\n\n\n Les activit\u00e9s des sites<\/strong><\/p>\n\n\n\n Dunkerque : du minerai \u00e0 l\u2019acier<\/strong><\/p>\n\n\n\n Le site de Dunkerque produit environ 7 millions de tonnes de brames (plaques d\u2019acier de 20 tonnes) et 4,5 millions de tonnes de bobines (coils) \u00e0 chaud par an.<\/p>\n\n\n\n Les principales installations sont :<\/p>\n\n\n\n Mardyck<\/strong><\/p>\n\n\n\n Le site de Mardyck comprend notamment :<\/p>\n\n\n\n L\u2019apr\u00e8s-midi du vendredi 22 mai 2026, les \u00e9l\u00e8ves de PCSI ainsi que des \u00e9l\u00e8ves de…<\/p>\n","protected":false},"author":8,"featured_media":6293,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[16],"tags":[20,193,127,192,125],"class_list":["post-6291","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite-cpge","tag-cpge","tag-dunkerque","tag-ingenierie","tag-metallurgie","tag-visite"],"featured_image_urls":{"full":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-scaled.jpg",2560,1920,false],"thumbnail":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-150x150.jpg",150,150,true],"medium":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-300x225.jpg",300,225,true],"medium_large":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-768x576.jpg",640,480,true],"large":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-1024x768.jpg",640,480,true],"1536x1536":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-1536x1152.jpg",1536,1152,true],"2048x2048":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-2048x1536.jpg",2048,1536,true],"newsphere-slider-full":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-1280x720.jpg",1280,720,true],"newsphere-featured":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-1024x768.jpg",1024,768,true],"newsphere-medium":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-720x380.jpg",720,380,true],"menu-24x24":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-24x18.jpg",24,18,true],"menu-36x36":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-36x27.jpg",36,27,true],"menu-48x48":["https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-48x36.jpg",48,36,true]},"author_info":{"display_name":"Gaudeline Wagner","author_link":"https:\/\/cesarbaggio.fr\/WP\/author\/wagner-g\/"},"category_info":"Actualit\u00e9 - CPGE<\/a>","tag_info":"Actualit\u00e9 - CPGE","comment_count":"0","jetpack_featured_media_url":"https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-scaled.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/posts\/6291","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/comments?post=6291"}],"version-history":[{"count":1,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/posts\/6291\/revisions"}],"predecessor-version":[{"id":6296,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/posts\/6291\/revisions\/6296"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/media\/6293"}],"wp:attachment":[{"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/media?parent=6291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/categories?post=6291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cesarbaggio.fr\/WP\/wp-json\/wp\/v2\/tags?post=6291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"https:\/\/cesarbaggio.fr\/WP\/wp-content\/uploads\/2026\/06\/4-300x225.jpg\")
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