{"id":9444,"date":"2025-12-24T10:51:53","date_gmt":"2025-12-24T02:51:53","guid":{"rendered":"https:\/\/www.cncmachiningshops.com\/?p=9444"},"modified":"2026-01-01T10:24:35","modified_gmt":"2026-01-01T02:24:35","slug":"416-stainless-steel","status":"publish","type":"post","link":"https:\/\/www.cncmachiningshops.com\/fr\/416-stainless-steel\/","title":{"rendered":"Acier inoxydable 416 : caract\u00e9ristiques, usinabilit\u00e9 et applications techniques"},"content":{"rendered":"<div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 fusion-flex-container nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row fusion-flex-align-items-flex-start fusion-flex-content-wrap\" style=\"max-width:calc( 1280px + 80px );margin-left: calc(-80px \/ 2 );margin-right: calc(-80px \/ 2 );\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-flex-column\" style=\"--awb-bg-size:cover;--awb-width-large:100%;--awb-margin-top-large:0px;--awb-spacing-right-large:40px;--awb-margin-bottom-large:0px;--awb-spacing-left-large:40px;--awb-width-medium:100%;--awb-spacing-right-medium:40px;--awb-spacing-left-medium:40px;--awb-width-small:100%;--awb-spacing-right-small:40px;--awb-spacing-left-small:40px;\"><div class=\"fusion-column-wrapper fusion-flex-justify-content-flex-start fusion-content-layout-column\"><div class=\"fusion-text fusion-text-1\"><div data-page-id=\"Ge9ydWRs0oVh2dxwe22cPXb5nVT\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Lorsque les ing\u00e9nieurs et les \u00e9quipes de fabrication demandent : \u201c Qu\u2019est-ce que l\u2019acier inoxydable 416 ? \u201d, ils ne s\u2019interrogent g\u00e9n\u00e9ralement pas sur la m\u00e9tallurgie de base. En pratique, la principale raison de choisir l\u2019acier inoxydable 416 est qu\u2019il est tr\u00e8s facile \u00e0 usiner dans une production de haute pr\u00e9cision \u00e0 grand volume.<\/span><\/p>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le 416 est le premier acier inoxydable \u201c \u00e0 usinabilit\u00e9 am\u00e9lior\u00e9e \u201d jamais fabriqu\u00e9. Il appartient \u00e0 une cat\u00e9gorie diff\u00e9rente de celle des nuances \u00e0 usage g\u00e9n\u00e9ral comme le 304 ou le 316. D\u2019un point de vue technique, il est pr\u00e9f\u00e9rable de le consid\u00e9rer comme un mat\u00e9riau optimis\u00e9 pour la fabrication. Lorsque l\u2019on ajoute intentionnellement du soufre (S) \u00e0 une base d\u2019acier inoxydable martensitique, l\u2019alliage produit des copeaux courts et faciles \u00e0 casser, r\u00e9duit les efforts de coupe et permet une usure d\u2019outil pr\u00e9visible. C\u2019est le choix par d\u00e9faut pour le tournage CNC, l\u2019usinage suisse et les op\u00e9rations de tour automatique o\u00f9 le temps de cycle affecte le co\u00fbt unitaire.<\/span><\/p>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Mais cette efficacit\u00e9 s\u2019accompagne de compromis \u00e9vidents. Le 416 n\u2019est pas une solution qui convient \u00e0 tout le monde. Sa r\u00e9sistance \u00e0 la corrosion est inf\u00e9rieure \u00e0 celle des nuances aust\u00e9nitiques, et il est tr\u00e8s difficile \u00e0 souder. En bref, le 416 est con\u00e7u pour \u00eatre rapide, pas pour fonctionner dans des environnements agressifs ou avec des structures soud\u00e9es.<\/span><\/p>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Cet article est un guide pour le choix dans le domaine de l\u2019ing\u00e9nierie. Nous examinerons la composition chimique, les limites m\u00e9caniques, les r\u00e9alit\u00e9s d\u2019usinage et la comparaison strat\u00e9gique de l\u2019acier inoxydable 416 pour vous aider \u00e0 d\u00e9cider quand sa rapidit\u00e9 vaut ses inconv\u00e9nients.<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Qu\u2019est-ce que l\u2019acier inoxydable 416 ? \u2014 Types de mat\u00e9riaux et normes<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le UNS S41600 est un acier inoxydable martensitique facile \u00e0 usiner. Contrairement aux s\u00e9ries 300 courantes (aust\u00e9nitiques) ou au 430 (ferritique), le 416 est con\u00e7u pour \u00eatre trait\u00e9 thermiquement afin d\u2019augmenter sa duret\u00e9 et est l\u2019acier inoxydable le plus facile \u00e0 usiner.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Qu'est-ce que l'acier inoxydable martensitique ?<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le mot \u201c martensitique \u201d d\u00e9crit la structure cristalline de l\u2019alliage et ses capacit\u00e9s :<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Traitement thermique possible :<\/span><\/strong><span class=\"ng-star-inserted\"> Vous pouvez tremper et revenir le 416 pour obtenir une large gamme de niveaux de duret\u00e9, tout comme l\u2019acier au carbone (jusqu\u2019\u00e0 ~40 HRC). La chaleur ne peut pas durcir les aciers aust\u00e9nitiques (304).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Magn\u00e9tique :<\/span><\/strong><span class=\"ng-star-inserted\"> Sa structure quadratique centr\u00e9e le rend ferromagn\u00e9tique dans tous les cas.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Faible teneur en nickel :<\/span><\/strong><span class=\"ng-star-inserted\"> Il ne contient pas le nickel qui rend les s\u00e9ries 300 si flexibles et r\u00e9sistantes \u00e0 la corrosion. \u00c0 la place, il utilise du chrome.<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Positionnement en ing\u00e9nierie :<\/span><\/strong><span class=\"ng-star-inserted\"> Le 416 sacrifie la r\u00e9sistance \u00e0 la corrosion et la soudabilit\u00e9 en \u00e9change d\u2019un usinage plus rapide et d\u2019une capacit\u00e9 de durcissement. C\u2019est l\u2019\u00e9quivalent de l\u2019acier de d\u00e9colletage (comme le 12L14), mais en version inoxydable.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Normes et d\u00e9signations<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La normalisation mondiale garantit que le 416 est une option fiable et facile \u00e0 trouver :<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La normalisation mondiale garantit l'uniformit\u00e9 :<\/span><\/strong><span class=\"ng-star-inserted\"> 416<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">UNS :<\/span><\/strong><span class=\"ng-star-inserted\"> S41600<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">ASTM :<\/span><\/strong><span class=\"ng-star-inserted\"> A582 (Barres \u00e0 usinabilit\u00e9 am\u00e9lior\u00e9e) et A240 (T\u00f4les)<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">EN \/ DIN :<\/span><\/strong><span class=\"ng-star-inserted\"> 4005 \/ X12CrS13<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Composition chimique de l\u2019acier inoxydable 416<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Un d\u00e9s\u00e9quilibre chimique planifi\u00e9 fait fonctionner le 416. Il ajoute des \u00e9l\u00e9ments qui aident \u00e0 la coupe tout en retirant ceux qui aident \u00e0 la r\u00e9sistance \u00e0 la corrosion.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tableau 1 : Composition chimique normale (wt%)<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c9l\u00e9ment<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Gamme typique<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Poste d'ing\u00e9nieur<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Chrome (Cr)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">12.0\u201314.0<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">C\u2019est le principal film passif qui prot\u00e8ge contre la corrosion.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Soufre (S)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">0.15\u20130.35<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le diff\u00e9renciateur cl\u00e9. Cr\u00e9e des inclusions de MnS pour casser les copeaux.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Carbone (C)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">0,15 max<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Permet la transformation martensitique (durcissement) lors du traitement thermique.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Mangan\u00e8se (Mn)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">1,25 max<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">En se combinant avec le soufre, il forme des sulfures de mangan\u00e8se b\u00e9n\u00e9fiques.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Phosphore (P)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">0,06 max<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Am\u00e9liore l\u2019usinabilit\u00e9 mais d\u00e9grade la t\u00e9nacit\u00e9.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Silicium (Si)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">1,0 max<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">D\u00e9soxydant.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Fer (Fe)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Solde<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Matrice de base.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pourquoi l\u2019ajout de soufre facilite l\u2019usinage<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La caract\u00e9ristique d\u00e9terminante est l\u2019ajout de soufre. Le soufre et le mangan\u00e8se se combinent dans la matrice d\u2019acier pour former des inclusions de sulfure de mangan\u00e8se (MnS).<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Bris de copeaux :<\/span><\/strong><span class=\"ng-star-inserted\"> Ces inclusions favorisent la rupture des copeaux en petits fragments faciles \u00e0 g\u00e9rer plut\u00f4t qu\u2019en longs amas filandreux.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Lubrification :<\/span><\/strong><span class=\"ng-star-inserted\"> Les inclusions contribuent \u00e0 lubrifier l\u2019int\u00e9rieur de l\u2019interface outil-copeau, ce qui r\u00e9duit la chaleur et le frottement.<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le compromis est que ces m\u00eames inclusions fragmentent la couche protectrice d\u2019oxyde de chrome, facilitant ainsi le d\u00e9marrage de la corrosion par piq\u00fbres.<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Propri\u00e9t\u00e9s physiques et m\u00e9caniques de l\u2019acier inoxydable 416<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">La valeur du 416 r\u00e9side dans sa grande polyvalence. Les ing\u00e9nieurs peuvent le sp\u00e9cifier \u00e0 l\u2019\u00e9tat recuit pour un formage et un usinage optimaux, ou \u00e0 l\u2019\u00e9tat durci pour la r\u00e9sistance.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Propri\u00e9t\u00e9s m\u00e9caniques (\u00e9tat A vs. \u00e9tat T)<\/span><\/h3>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tableau 2 : Comparaison des propri\u00e9t\u00e9s m\u00e9caniques<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Propri\u00e9t\u00e9<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Recuit (\u00e9tat A)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c9tat T : revenu<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Interpr\u00e9tation technique<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">R\u00e9sistance \u00e0 la traction<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">environ 517 MPa (75 ksi)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~790\u20131000 MPa ou plus<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le traitement thermique peut doubler la r\u00e9sistance.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Limite d'\u00e9lasticit\u00e9<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~275 MPa (40 ksi)<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">~600 \u00e0 850 MPa<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">L\u2019\u00e9tat T conf\u00e8re \u00e0 la structure une grande r\u00e9sistance.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c9longation<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">30%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">15 \u00e0 20%<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Apr\u00e8s durcissement, la ductilit\u00e9 diminue consid\u00e9rablement.<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Duret\u00e9<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">environ 150\u2013200 HB<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">24\u201335 HRC<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Suffisamment r\u00e9sistant pour les pi\u00e8ces d\u2019usure, mais usinable.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Note de conception :<\/span><\/strong><span class=\"ng-star-inserted\"> L\u2019\u00e9tat T (revenu interm\u00e9diaire) est une sp\u00e9cification courante qui \u00e9tablit un \u00e9quilibre entre la r\u00e9sistance (environ 90 ksi de limite d\u2019\u00e9lasticit\u00e9) et l\u2019usinabilit\u00e9. Cela signifie que les pi\u00e8ces peuvent \u00eatre usin\u00e9es apr\u00e8s traitement thermique sans d\u00e9formation.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Aspect physique<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Densit\u00e9 :<\/span><\/strong><span class=\"ng-star-inserted\"> 7,75 g\/cm\u00b3, ce qui est normal pour l\u2019acier.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Dilatation thermique :<\/span><\/strong><span class=\"ng-star-inserted\"> environ 9,9 \u00b5m\/m\u00b7\u00b0C. Inf\u00e9rieur au 304 (environ 17,2), ce qui maintient le 416 stable en dimensions lorsque la temp\u00e9rature change.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Conductivit\u00e9 thermique :<\/span><\/strong><span class=\"ng-star-inserted\"> environ 24,9 W\/m\u00b7K. Meilleur que le 304 car il laisse la chaleur s'\u00e9chapper plus rapidement lors de l'usinage.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">R\u00e9sistance \u00e0 la corrosion : o\u00f9 le 416 fonctionne et o\u00f9 il ne fonctionne pas<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">L'acier inoxydable 416 est quelque peu r\u00e9sistant \u00e0 la corrosion. Il est \u201c inoxydable \u201d, mais \u00e0 peine.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">O\u00f9 il fonctionne<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Conditions :<\/span><\/strong><span class=\"ng-star-inserted\"> air sec, eau propre, vapeur et mati\u00e8res organiques douces comme l'huile et la graisse.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Utilisations :<\/span><\/strong><span class=\"ng-star-inserted\"> pi\u00e8ces pour l'int\u00e9rieur d'un bureau, pi\u00e8ces pour une pompe n\u00e9cessitant une lubrification, et fixations dans des assemblages qui ne rouillent pas.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">O\u00f9 il pose probl\u00e8me<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Environnements :<\/span><\/strong><span class=\"ng-star-inserted\"> eau sal\u00e9e, air marin, solutions chlor\u00e9es et acides.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le m\u00e9canisme\u00a0:<\/span><\/strong><span class=\"ng-star-inserted\"> Les inclusions de soufre (MnS) qui facilitent l'usinage agissent \u00e9galement comme de minuscules piq\u00fbres pr\u00eates \u00e0 se former. Ces endroits rouillent rapidement en pr\u00e9sence d'\u00e9lectrolytes (comme l'eau sal\u00e9e).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Comparaison :<\/span><\/strong><span class=\"ng-star-inserted\"> Le 416 est beaucoup moins r\u00e9sistant \u00e0 la corrosion que le 304, le 316 et m\u00eame le 410 (qui ne contient pas de soufre).<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">R\u00e8gle empirique pour les ing\u00e9nieurs :<\/span><\/strong><span class=\"ng-star-inserted\"> N'utilisez jamais le 416 pour du mat\u00e9riel marin ou des pi\u00e8ces expos\u00e9es aux sels de d\u00e9gla\u00e7age.<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pourquoi l'acier inoxydable 416 est un favori CNC pour l'usinage<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le fait que le 416 soit facile \u00e0 usiner est sa meilleure caract\u00e9ristique. Il est \u00e9valu\u00e9 \u00e0 environ 85\u2013110% de la barre standard B1112, qui est la r\u00e9f\u00e9rence pour l'acier. Cela diff\u00e8re de l'inox 304, qui n'obtient qu'une note d'environ 40\u201350%.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Comment fonctionnent le tournage et le fraisage CNC<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Contr\u00f4le des puces :<\/span><\/strong><span class=\"ng-star-inserted\"> Le 416 produit de petits copeaux cassants faciles \u00e0 \u00e9vacuer de la zone de coupe. Cela signifie que vous n'avez pas besoin de \u201c percer par \u00e0-coups \u201d ou de vous arr\u00eater souvent pour d\u00e9gager les copeaux en nids d'oiseau.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Vitesses de coupe :<\/span><\/strong><span class=\"ng-star-inserted\"> Vous pouvez usiner le 416 \u00e0 130\u2013160 SFM (pieds de surface par minute), tandis que le 304 se travaille \u00e0 60\u201380 SFM. Cela signifie que les temps de cycle sont deux fois plus rapides.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Dur\u00e9e de vie de l'outil :<\/span><\/strong><span class=\"ng-star-inserted\"> Comme le mat\u00e9riau ne devient pas collant, il ne cr\u00e9e pas d'ar\u00eate rapport\u00e9e (BUE) sur les outils, ce qui prolonge consid\u00e9rablement la dur\u00e9e de vie des plaquettes en carbure.<\/span><\/p>\n<\/li>\n<\/ul>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Guide de strat\u00e9gie d'usinage<\/span><\/h3>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Condition :<\/span><\/strong><span class=\"ng-star-inserted\"> Usinez \u00e0 l'\u00e9tat trait\u00e9 thermiquement (\u00e9tat T) (environ 26\u201332 HRC) pour obtenir le meilleur \u00e9tat de surface. Il est assez dur pour se couper proprement mais assez doux pour se couper rapidement. Parfois, le 416 recuit peut \u00eatre \u201c collant \u201d.\u201d<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Outils :<\/span><\/strong><span class=\"ng-star-inserted\"> Les outils en carbure standard fonctionnent parfaitement. Des rev\u00eatements comme le TiAlN peuvent prolonger la dur\u00e9e de vie, mais ils ne sont pas toujours n\u00e9cessaires.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Liquide de refroidissement :<\/span><\/strong><span class=\"ng-star-inserted\"> Un liquide de refroidissement hydrosoluble standard suffit.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Comportement de durcissement et de traitement thermique<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Comme le 416 est martensitique, le traitement thermique est un excellent moyen de modifier ses propri\u00e9t\u00e9s.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Les \u00e9tapes<\/span><\/h3>\n<ol class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pour durcir, chauffer \u00e0 environ 980\u00b0C et refroidir rapidement (\u00e0 l'huile ou \u00e0 l'air). Le r\u00e9sultat est une structure martensitique dure et fragile (jusqu'\u00e0 45 HRC).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Trempe :<\/span><\/strong><span class=\"ng-star-inserted\"> R\u00e9chauffez-le \u00e0 une temp\u00e9rature plus basse pour lui redonner de la t\u00e9nacit\u00e9.<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Revenu \u00e0 basse temp\u00e9rature (environ 300\u00b0C) :<\/span><\/strong><span class=\"ng-star-inserted\"> tr\u00e8s dur mais pas tr\u00e8s tenace.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Revenu \u00e9lev\u00e9 (environ 600\u00b0C) :<\/span><\/strong><span class=\"ng-star-inserted\"> La t\u00e9nacit\u00e9 est \u00e9lev\u00e9e, mais la duret\u00e9 est faible (\u00e9tat T).<\/span><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Mise en garde en ing\u00e9nierie :<\/span><\/strong><span class=\"ng-star-inserted\"> Ne faites pas de revenu entre 400\u00b0C et 560\u00b0C. Le 416 perd sa capacit\u00e9 \u00e0 r\u00e9sister \u00e0 la corrosion et sa t\u00e9nacit\u00e9 aux chocs dans cette plage en raison de la pr\u00e9cipitation de carbures (fragilisation au revenu).<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Limitations concernant le soudage et la fabrication<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le 416 a beaucoup de bons points, mais un gros probl\u00e8me est qu'il ne se soude pas bien.<\/span><\/p>\n<h3 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le probl\u00e8me du soudage<\/span><\/h3>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u201cLa \u201d fragilit\u00e9 \u00e0 chaud \u00bb (fissuration \u00e0 chaud) se produit en raison de la teneur \u00e9lev\u00e9e en soufre. Lorsque le bain de soudure refroidit, le soufre cr\u00e9e des films liquides aux joints de grains. Cela provoque une fissuration imm\u00e9diate de la soudure lorsqu'elle est chauff\u00e9e.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Conseil :<\/span><\/strong><span class=\"ng-star-inserted\"> Ne soudez pas le 416. Si vous devez souder, utilisez des \u00e9lectrodes \u00e0 faible teneur en hydrog\u00e8ne, chauffez la pi\u00e8ce \u00e0 200\u00b0C, puis effectuez un recuit post-soudure imm\u00e9diatement. M\u00eame dans ce cas, le joint soud\u00e9 sera faible et peu r\u00e9sistant \u00e0 la corrosion.<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Guide d'ing\u00e9nierie pour choisir entre les aciers inoxydables 416, 316 et 304<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Choisir le bon acier inoxydable est un compromis entre la facilit\u00e9 d'usinage et l'ad\u00e9quation \u00e0 l'environnement.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Tableau 3 : Matrice de d\u00e9cision pour l'acier inoxydable<\/span><\/strong><\/p>\n<div class=\"table-container ng-star-inserted\">\n<table>\n<tbody>\n<tr class=\"table-header ng-star-inserted\">\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Fonctionnalit\u00e9<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Inox 416<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Inox 304<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Inox 316<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Acier inoxydable 303<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Usinabilit\u00e9<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Meilleur<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pauvre<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pauvre<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Excellent<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">R\u00e9sistance \u00e0 la corrosion<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Juste<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Bon<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Meilleur<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Bon (Int\u00e9rieur)<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Magn\u00e9tique ?<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Oui<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Durcissable ?<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Oui<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Peut-il \u00eatre soud\u00e9 ?<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Oui<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Oui<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Non<\/span><\/td>\n<\/tr>\n<tr class=\"ng-star-inserted\">\n<td class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Co\u00fbt (Pi\u00e8ce)<\/span><\/strong><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le plus bas<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Mod\u00e9r\u00e9<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c9lev\u00e9<\/span><\/td>\n<td class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Faible<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Crit\u00e8res de s\u00e9lection :<\/span><\/strong><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Choisissez le 416 pour les \u00e9crous, engrenages ou arbres \u00e0 grand volume utilis\u00e9s en int\u00e9rieur (dans un environnement d'huile ou de graisse).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Si vous avez besoin d'une usinabilit\u00e9 \u00e9lev\u00e9e mais aussi de propri\u00e9t\u00e9s non magn\u00e9tiques ou d'une r\u00e9sistance \u00e0 la corrosion l\u00e9g\u00e8rement meilleure, choisissez le 303.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pour les assemblages soud\u00e9s \u00e0 usage g\u00e9n\u00e9ral, choisissez le 304.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Choisissez le 316 si vous serez expos\u00e9 \u00e0 des produits chimiques ou \u00e0 l\u2019oc\u00e9an.<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Utilisations courantes de l\u2019acier inoxydable 416<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Le 416 est l\u2019acier inoxydable utilis\u00e9 dans les \u201c machines \u00e0 d\u00e9colleter \u201d. On le trouve dans les endroits o\u00f9 les pi\u00e8ces sont complexes, nombreuses, et o\u00f9 l\u2019environnement est contr\u00f4l\u00e9.<\/span><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">\u00c9l\u00e9ments de fixation<\/span><\/strong><span class=\"ng-star-inserted\"> comprennent les \u00e9crous, les boulons et les vis, en particulier ceux qui doivent \u00eatre tr\u00e8s r\u00e9sistants.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Pi\u00e8ces de pompes et de vannes<\/span><\/strong><span class=\"ng-star-inserted\"> comprennent les tiges de vannes, les arbres de pompes et les pi\u00e8ces internes capables de supporter des fluides non corrosifs comme l\u2019huile et la vapeur.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Automobile :<\/span><\/strong><span class=\"ng-star-inserted\"> Arbres de moteurs, bo\u00eetiers de capteurs et sol\u00e9no\u00efdes.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Armes \u00e0 feu :<\/span><\/strong><span class=\"ng-star-inserted\"> Canons, culasses et pi\u00e8ces de d\u00e9tente (car ils peuvent \u00eatre usin\u00e9s et durcis).<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Moteurs \u00e9lectriques :<\/span><\/strong><span class=\"ng-star-inserted\"> Arbres (les propri\u00e9t\u00e9s magn\u00e9tiques aident ici).<\/span><\/p>\n<\/li>\n<\/ul>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">R\u00e9sum\u00e9 \u2014 Ce que les ing\u00e9nieurs doivent garder \u00e0 l'esprit<\/span><\/h2>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">L\u2019acier inoxydable 416 est un type d\u2019acier sp\u00e9cial. Il r\u00e9sout un probl\u00e8me sp\u00e9cifique : le co\u00fbt de fabrication des pi\u00e8ces.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Points importants :<\/span><\/strong><\/p>\n<ul class=\"ng-star-inserted\">\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Roi de la vitesse :<\/span><\/strong><span class=\"ng-star-inserted\"> Il offre les vitesses d\u2019usinage les plus rapides de tous les aciers inoxydables, ce qui r\u00e9duit consid\u00e9rablement le temps n\u00e9cessaire \u00e0 la fabrication des pi\u00e8ces d\u00e9collet\u00e9es.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Trempable :<\/span><\/strong><span class=\"ng-star-inserted\"> Vous pouvez traiter thermiquement le 416 jusqu\u2019\u00e0 environ 40 HRC pour la r\u00e9sistance \u00e0 l\u2019usure, ce qui diff\u00e8re de la s\u00e9rie 300.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Limites environnementales :<\/span><\/strong><span class=\"ng-star-inserted\"> Il rouillera s\u2019il est mouill\u00e9. Il ne doit pas \u00eatre utilis\u00e9 pour la quincaillerie marine.<\/span><\/p>\n<\/li>\n<li class=\"ng-star-inserted\">\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Ne pas souder :<\/span><\/strong><span class=\"ng-star-inserted\"> Utilisez des fixations ou des ajustements serr\u00e9s au lieu de soudures pour assembler les pi\u00e8ces.<\/span><\/p>\n<\/li>\n<\/ul>\n<p class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Les ing\u00e9nieurs peuvent \u00e9conomiser beaucoup d\u2019argent en s\u2019assurant que le 416 est utilis\u00e9 de la bonne mani\u00e8re, par exemple pour des pi\u00e8ces durcies, \u00e0 grand volume et en int\u00e9rieur, sans perte de performance.<\/span><\/p>\n<h2 class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">FAQ<\/span><\/h2>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Q : L\u2019acier inoxydable 416 a-t-il un champ magn\u00e9tique ?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">R : Oui. Le 416 est ferromagn\u00e9tique dans tous les \u00e9tats, qu\u2019il soit recuit ou durci. C\u2019est un moyen rapide de le distinguer du 303\/304, qui ne sont pas magn\u00e9tiques.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Q : Le 416 rouille-t-il ?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">R : Oui. Par rapport \u00e0 d\u2019autres types d\u2019acier inoxydable, il est le moins r\u00e9sistant \u00e0 la corrosion. Si vous le laissez dans l\u2019eau, le sel ou une humidit\u00e9 \u00e9lev\u00e9e pendant longtemps, il rouillera. Il fonctionne mieux dans les endroits o\u00f9 il y a de l\u2019huile ou de la graisse.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Q : Quelle est la meilleure fa\u00e7on d\u2019usiner le 416 ?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">R : \u00c9tat T (tremp\u00e9). Le 416 recuit est plus doux, mais il peut aussi \u00eatre \u201c collant \u201d. L\u2019\u00e9tat T (environ 26\u201332 HRC) est suffisamment dur pour casser les copeaux proprement, ce qui donne de meilleurs \u00e9tats de surface et des tol\u00e9rances plus stables.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Q : Est-il possible d\u2019\u00e9conomiser de l\u2019argent en passant du 304 au 416 ?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">R : Uniquement si l\u2019environnement corrosif le permet. Oui, si la pi\u00e8ce est \u00e0 l\u2019int\u00e9rieur d\u2019un r\u00e9ducteur rempli d\u2019huile. Non, il rouillera si la pi\u00e8ce est un support ext\u00e9rieur.<\/span><\/p>\n<p class=\"ng-star-inserted\"><strong class=\"ng-star-inserted\"><span class=\"ng-star-inserted\">Q : Le 416 est-il s\u00fbr pour le contact alimentaire ?<\/span><\/strong><br class=\"ng-star-inserted\" \/><span class=\"ng-star-inserted\">R : Non, g\u00e9n\u00e9ralement pas. Parce qu\u2019il contient beaucoup de soufre et ne r\u00e9siste pas aussi bien \u00e0 la corrosion, il ne doit pas \u00eatre utilis\u00e9 sur des surfaces en contact avec les aliments, car les piq\u00fbres peuvent pi\u00e9ger les bact\u00e9ries. Pour un usage alimentaire, utilisez du 304 ou du 316.<\/span><\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>When engineers and manufacturing teams ask, &#8220;What is 416 stainless steel?&#8221; they are usually not really asking about basic metallurgy.<\/p>","protected":false},"author":1,"featured_media":9618,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[103],"tags":[],"class_list":["post-9444","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-materials-guide"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>416 Stainless Steel: Properties, Machinability &amp; Applications<\/title>\n<meta name=\"description\" content=\"Learn 416 stainless steel characteristics, excellent 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