{"id":579,"date":"2019-02-11T12:16:00","date_gmt":"2019-02-11T09:16:00","guid":{"rendered":"https:\/\/metallsmaster.ru\/?p=579"},"modified":"2021-09-20T10:02:43","modified_gmt":"2021-09-20T07:02:43","slug":"uglerodistaya-stal","status":"publish","type":"post","link":"https:\/\/metallsmaster.pro\/fr\/acier-au-carbone\/","title":{"rendered":"Acier au carbone, GOST, nuances, propri\u00e9t\u00e9s, types, qualit\u00e9s"},"content":{"rendered":"<p><strong>Acier au carbone<\/strong>\u00a0\u2014 est un acier \u00e0 outils contenant 0,04-2% de carbone et toujours pr\u00e9sent des impuret\u00e9s, ne contenant pas d&#039;\u00e9l\u00e9ments d&#039;alliage.\u00a0<strong>Acier au carbone<\/strong>\u00a0Selon le pourcentage de teneur en carbone, il est divis\u00e9 en trois types principaux :<\/p>\n<ul>\n<li><a href=\"https:\/\/metallsmaster.pro\/fr\/lacier-a-faible-teneur-en-carbone-et-ses-principales-caracteristiques\/\">\u00e0 faible \u00e9mission de carbone<\/a>;<\/li>\n<li><a href=\"https:\/\/metallsmaster.pro\/fr\/acier-au-carbone-moyen\/\">carbone moyen<\/a>;<\/li>\n<li><a href=\"https:\/\/metallsmaster.pro\/fr\/acier-a-haute-teneur-en-carbone\/\">\u00e0 haute teneur en carbone<\/a>.<\/li>\n<\/ul>\n<p>Ce mat\u00e9riau n\u00e9cessite un traitement thermique pour devenir suffisamment dur et r\u00e9sistant pour supporter les charges requises par les composants critiques. Le SAW est utilis\u00e9 dans la fabrication d&#039;outils.<\/p>\n<p><strong>Acier au carbone<\/strong>\u00a0class\u00e9 comme :<\/p>\n<ul>\n<li>de haute qualit\u00e9, contient jusqu&#039;\u00e0 0,035% de phosphore et de soufre ;<\/li>\n<li>de haute qualit\u00e9, contient jusqu&#039;\u00e0 0,025% de phosphore et de soufre.<\/li>\n<\/ul>\n<h2>\n\t<!--<div class='top-banner-pages'>\t\n\n\t<\/div>--->\n\t<\/h2>\n<h2>Nuance d&#039;acier au carbone<\/h2>\n<p><strong>Nuance d&#039;acier au carbone<\/strong>\u00a0qui pr\u00e9sentent une grande vari\u00e9t\u00e9. Selon la norme GOST 1435-99, l&#039;industrie m\u00e9tallurgique produit les nuances d&#039;acier \u00e0 outils au carbone suivantes\u00a0:<\/p>\n<ul>\n<li>U7;<\/li>\n<li>U7A;<\/li>\n<li>U8;<\/li>\n<li>U8A;<\/li>\n<li>U9A;<\/li>\n<li>U10;<\/li>\n<li>U11;<\/li>\n<li>UNA;<\/li>\n<li>U12;<\/li>\n<li>U12A;<\/li>\n<li>U13;<\/li>\n<li>U13A.<\/li>\n<\/ul>\n<p>La lettre U indique que l&#039;acier est au carbone. La lettre A, \u00e0 la fin de la nuance, d\u00e9signe un groupe d&#039;aciers de haute qualit\u00e9, \u00e0 teneur plus \u00e9lev\u00e9e en soufre et en phosphore. Les chiffres de la d\u00e9signation indiquent le pourcentage de carbone dans l&#039;alliage, multipli\u00e9 par 10 pour plus de commodit\u00e9. L&#039;absence de la lettre A indique un acier de haute qualit\u00e9. Le chiffre indique une teneur en carbone moyenne, tandis que la lettre G indique une teneur \u00e9lev\u00e9e en mangan\u00e8se.<\/p>\n<p><strong>Nuance d&#039;acier au carbone<\/strong>\u00a0Ils sont peu co\u00fbteux et extr\u00eamement durs, ce qui les distingue des autres aciers \u00e0 outils. Ces nuances pr\u00e9sentent une faible r\u00e9sistance \u00e0 l&#039;usure et \u00e0 la chaleur.\u00a0<strong>Nuance d&#039;acier au carbone<\/strong>\u00a0Les nuances U7 et U7A sont utilis\u00e9es avec succ\u00e8s pour les outils de travail du bois (haches, ciseaux et gouges) ainsi que pour les outils de travail des m\u00e9taux (ciseaux, matrices de forge, outils de travail des m\u00e9taux, marteaux, masses, tournevis, tenailles, etc.). Les nuances U8, U8A, U8G et U8GA sont utilis\u00e9es pour fabriquer des outils tr\u00e8s r\u00e9sistants \u00e0 la chaleur pendant le fonctionnement et supportant les charges de rotation (d\u00e9fonceuses \u00e0 bois, fraises, scies \u00e0 refendre, scies circulaires, molettes, etc.).<\/p>\n\n<!---<div class='top-banner-pages'>\n\n<\/div>-->\n\n\t\n<p><strong>Nuance d&#039;acier au carbone<\/strong>\u00a0Les U10 et U10A sont utilis\u00e9s pour la fabrication de fils \u00e0 aiguilles et d&#039;outils dont le tranchant ne chauffe pas. Les U13 et U13A sont utilis\u00e9s pour les outils n\u00e9cessitant une r\u00e9sistance accrue \u00e0 l&#039;usure, notamment les lames de rasoir, les instruments chirurgicaux et les outils de gravure sur m\u00e9tal et sur pierre.<\/p>\n<p><strong>Acier au carbone GOST<\/strong> Cette norme a \u00e9t\u00e9 introduite pour garantir que les acheteurs puissent acqu\u00e9rir de l&#039;acier aux propri\u00e9t\u00e9s et \u00e0 la composition sp\u00e9cifiques. Si un consommateur voit un mat\u00e9riau conforme \u00e0 GOST, il peut \u00eatre s\u00fbr de sa qualit\u00e9. GOST est une norme sp\u00e9cifique \u00e0 laquelle les produits des fabricants doivent se conformer.<\/p>\n<p><strong>Nuance d&#039;acier au carbone<\/strong> L&#039;acier pr\u00e9sente diverses caract\u00e9ristiques. La classification de ce mat\u00e9riau en nuances est n\u00e9cessaire \u00e0 sa classification. Par exemple, une usine produit des outils de construction. Cela n\u00e9cessite l&#039;utilisation d&#039;acier \u00e0 haute r\u00e9sistance. C&#039;est l\u00e0 qu&#039;intervient un syst\u00e8me de marquage de l&#039;acier. Le fabricant sait d&#039;avance qu&#039;une nuance d&#039;acier poss\u00e8de les caract\u00e9ristiques requises et peut l&#039;acheter imm\u00e9diatement aupr\u00e8s du fournisseur, sans perdre de temps \u00e0 examiner chaque nouveau lot.<\/p>\n<p>Les alliages diff\u00e8rent les uns des autres par leur m\u00e9thode de fabrication. Par exemple, <strong>acier au carbone de qualit\u00e9 ordinaire<\/strong> Il est fondu dans des fours \u00e0 sole ouverte, puis coul\u00e9 en gros lingots. <strong>Acier au carbone ordinaire<\/strong> Contient de nombreuses inclusions non m\u00e9talliques. Des rayures sont visibles sur la section transversale de ce mat\u00e9riau lorsqu&#039;il est lamin\u00e9.<\/p>\n\n\t<!--<div class='top-banner-pages'>\t\n\n\t<\/div>--->\n\t\n<p>Ils sont fondus dans des fours \u00e0 sole ouverte <strong>aciers au carbone de haute qualit\u00e9<\/strong>Le processus de production est soumis \u00e0 des exigences tr\u00e8s strictes. Le respect de toutes les normes permet d&#039;obtenir un mat\u00e9riau \u00e0 faible teneur en inclusions non m\u00e9talliques. Les m\u00e9taux de la plus haute qualit\u00e9 sont produits dans des fours \u00e9lectriques, qui se distinguent par d&#039;excellentes propri\u00e9t\u00e9s m\u00e9caniques.<\/p>\n<p><strong>Acier au carbone de qualit\u00e9 ordinaire<\/strong> Il existe de nombreuses nuances. Parmi elles, on trouve St1kp, St2kp, St3kp, St4ps, et ainsi de suite jusqu&#039;\u00e0 St6sp. Les premi\u00e8res lettres \u00ab\u00a0St\u00a0\u00bb sont l&#039;abr\u00e9viation de \u00ab\u00a0Steel\u00a0\u00bb. Le num\u00e9ro suivant indique le num\u00e9ro de nuance attribu\u00e9 au mat\u00e9riau en fonction de sa composition chimique. Plus le num\u00e9ro est \u00e9lev\u00e9, plus la teneur en carbone de l&#039;alliage est \u00e9lev\u00e9e. Certaines d\u00e9signations incluent la lettre \u00ab\u00a0G\u00a0\u00bb. Cela indique que du mangan\u00e8se a \u00e9t\u00e9 ajout\u00e9 \u00e0 l&#039;alliage et que sa teneur dans la fraction massique de l&#039;acier est \u00e9gale ou sup\u00e9rieure \u00e0 0,81\u00a0TP3T. \u00c0 la fin du marquage se trouvent deux lettres indiquant l&#039;\u00e9tat d&#039;oxydation du mat\u00e9riau\u00a0: \u00ab\u00a0Sp\u00a0\u00bb signifie calme, \u00ab\u00a0kp\u00a0\u00bb signifie \u00e9bullition et \u00ab\u00a0ps\u00a0\u00bb signifie semi-calme.<\/p>\n<p><strong>Acier au carbone ordinaire GOST<\/strong> Attribu\u00e9 au num\u00e9ro 380-2005. Il est id\u00e9al pour la production de produits lamin\u00e9s \u00e0 chaud.<\/p>\n<p><strong>Qualit\u00e9s de l&#039;acier au carbone<\/strong> Cela d\u00e9pend de leur teneur en mangan\u00e8se. Il existe des alliages \u00e0 teneur normale en mangan\u00e8se (jusqu&#039;\u00e0 0,8 TP3T) et \u00e0 teneur plus \u00e9lev\u00e9e (jusqu&#039;\u00e0 1,2 TP3T). Le mangan\u00e8se am\u00e9liore la trempabilit\u00e9 et la r\u00e9sistance de l&#039;acier. Cependant, il rend \u00e9galement le mat\u00e9riau moins ductile et mall\u00e9able.<\/p>\n<h3>La diff\u00e9rence entre les aciers alli\u00e9s et les aciers au carbone<\/h3>\n<p><strong>Aciers alli\u00e9s au carbone<\/strong> On les appelle ainsi car certains m\u00e9taux y sont ajout\u00e9s lors de leur production, afin de conf\u00e9rer au mat\u00e9riau les propri\u00e9t\u00e9s m\u00e9caniques ou chimiques souhait\u00e9es.<\/p>\n<p><strong>Aciers au carbone et alli\u00e9s<\/strong> Ils pr\u00e9sentent une diff\u00e9rence importante. L&#039;acier au carbone est fabriqu\u00e9 \u00e0 partir des m\u00eames mat\u00e9riaux que la mati\u00e8re premi\u00e8re d&#039;origine, notamment du fer, du carbone et des impuret\u00e9s nocives comme le phosphore et le soufre. Si d&#039;autres m\u00e9taux, comme le chrome ou le cuivre, y sont ajout\u00e9s, l&#039;alliage est appel\u00e9 alliage.<\/p>\n<h3>Caract\u00e9ristiques de l&#039;acier de construction<\/h3>\n\n<!---<div class='top-banner-pages'>\n\n<\/div>-->\n\n\t\n<p><strong>Aciers de construction au carbone<\/strong> Ils sont utilis\u00e9s dans la production de divers m\u00e9canismes et corps de machines. Ils servent \u00e9galement \u00e0 cr\u00e9er des \u00e9l\u00e9ments structurels. Les alliages contenant du molybd\u00e8ne et du nickel sont utilis\u00e9s dans la production d&#039;\u00e9quipements m\u00e9caniques. Ces \u00e9l\u00e9ments augmentent la t\u00e9nacit\u00e9 des alliages.<\/p>\n<p>Les aciers de construction utilis\u00e9s dans la construction contiennent de faibles teneurs en \u00e9l\u00e9ments d&#039;alliage. Leur caract\u00e9ristique distinctive est leur excellente soudabilit\u00e9.<\/p>\n<h3>M\u00e9thodes de soudage des aciers au carbone<\/h3>\n<p><strong>Soudage des aciers au carbone<\/strong> Plusieurs m\u00e9thodes sont possibles. Si le soudage \u00e0 l&#039;arc submerg\u00e9 est choisi, un fil de soudage est requis. Les flux utilis\u00e9s sont l&#039;AN-348-A et l&#039;OSC-45. Le soudage doit \u00eatre effectu\u00e9 \u00e0 faible courant.<\/p>\n<p>Le soudage \u00e0 l&#039;arc sous argon avec une \u00e9lectrode non consommable est souvent utilis\u00e9. Le principal probl\u00e8me de cette m\u00e9thode est la formation de pores, due \u00e0 une d\u00e9soxydation insuffisante du m\u00e9tal de base. Pour y rem\u00e9dier, il est n\u00e9cessaire de r\u00e9duire la quantit\u00e9 de m\u00e9tal de base dans le d\u00e9p\u00f4t. Le soudeur doit s\u00e9lectionner le mode de soudage appropri\u00e9. Le soudage s&#039;effectue en courant continu (CC) et en polarit\u00e9 directe.<\/p>\n<h3>Qualit\u00e9s de l&#039;acier au carbone<\/h3>\n<p><strong>Propri\u00e9t\u00e9s de l&#039;acier au carbone<\/strong>\u00a0sont consid\u00e9rablement am\u00e9lior\u00e9es lorsqu&#039;elles sont trait\u00e9es thermiquement.<\/p>\n<p>Apr\u00e8s ce processus, l&#039;alliage acquiert une duret\u00e9 \u00e9lev\u00e9e, une r\u00e9sistance \u00e9lev\u00e9e, la capacit\u00e9 de r\u00e9pondre \u00e0 de lourdes charges et de r\u00e9sister \u00e0 des temp\u00e9ratures \u00e9lev\u00e9es lorsque le tranchant est en fonctionnement.\u00a0<strong>Qualit\u00e9s de l&#039;acier au carbone<\/strong>\u00a0Cela en fait l&#039;un des types d&#039;acier les plus recherch\u00e9s. Ses caract\u00e9ristiques et propri\u00e9t\u00e9s sont r\u00e9gul\u00e9es lors de la fusion, garantissant ainsi le maintien du pourcentage requis d&#039;\u00e9l\u00e9ments d&#039;alliage.\u00a0<strong>Qualit\u00e9s de l&#039;acier au carbone<\/strong>\u00a0permettent de le souder et de le traiter avec succ\u00e8s par d\u00e9coupe, les \u00e9l\u00e9ments d&#039;alliage qui y sont introduits modifient ses propri\u00e9t\u00e9s, les propri\u00e9t\u00e9s m\u00e9caniques augmentent et la fragilit\u00e9 \u00e0 froid diminue.<\/p>\n\n<!---<div class='top-banner-pages'>\n\n<\/div>-->\n\n\t\n<h3>Types d&#039;acier au carbone<\/h3>\n<p><strong>Types d&#039;acier au carbone<\/strong>\u00a0sont divis\u00e9s en :<\/p>\n<ul>\n<li>A - fourni en fonction de ses propri\u00e9t\u00e9s m\u00e9caniques, qui peuvent \u00eatre modifi\u00e9es ;<\/li>\n<li>B - selon ses propri\u00e9t\u00e9s chimiques, tandis que les propri\u00e9t\u00e9s m\u00e9caniques changent et le niveau est d\u00e9termin\u00e9 par la composition chimique ;<\/li>\n<li>Les B- sont fournis en fonction du contenu chimique et de leurs propri\u00e9t\u00e9s m\u00e9caniques pour les pi\u00e8ces.<\/li>\n<\/ul>\n<p><strong>Types d&#039;acier au carbone<\/strong>\u00a0Selon le type de traitement, on distingue :<\/p>\n<ul>\n<li>lamin\u00e9 \u00e0 chaud;<\/li>\n<li>forg\u00e9;<\/li>\n<li>calibr\u00e9;<\/li>\n<li>rond avec une finition de surface sp\u00e9ciale.<\/li>\n<\/ul>\n<p>Selon le degr\u00e9 de d\u00e9soxydation :<\/p>\n<ul>\n<li>semi-calme;<\/li>\n<li>calme;<\/li>\n<li>\u00e9bullition.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-581 aligncenter\" src=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u0438\u0441\u0442\u0430\u044f-\u0441\u0442\u0430\u043b\u044c-\u0441\u043e\u0441\u0442\u0430\u0432.webp\" alt=\"Composition de l&#039;acier au carbone\" width=\"660\" height=\"148\" srcset=\"https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u0438\u0441\u0442\u0430\u044f-\u0441\u0442\u0430\u043b\u044c-\u0441\u043e\u0441\u0442\u0430\u0432.webp 660w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u0438\u0441\u0442\u0430\u044f-\u0441\u0442\u0430\u043b\u044c-\u0441\u043e\u0441\u0442\u0430\u0432-300x67.webp 300w, https:\/\/metallsmaster.pro\/wp-content\/uploads\/2019\/02\/\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u0438\u0441\u0442\u0430\u044f-\u0441\u0442\u0430\u043b\u044c-\u0441\u043e\u0441\u0442\u0430\u0432-254x57.webp 254w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>L&#039;acier au carbone est un acier \u00e0 outils contenant 0,04-2% de carbone et toujours des impuret\u00e9s pr\u00e9sentes, non\u2026<\/p>","protected":false},"author":1,"featured_media":580,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-metalls"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u0438\u0441\u0442\u044b\u0435 \u0441\u0442\u0430\u043b\u0438, \u0434\u0435\u0442\u0430\u043b\u044c\u043d\u043e\u0435 \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0441\u0432\u043e\u0439\u0441\u0442\u0432 \u0438 \u043e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0435\u0439, \u0442\u0435\u0445\u043d\u0438\u043a\u0430 \u043c\u0430\u0440\u043a\u0438\u0440\u043e\u0432\u043a\u0438 \u0438 \u043e\u0431\u043e\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u044f, \u0430 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