{"id":821,"date":"2023-01-02T10:09:00","date_gmt":"2023-01-02T10:09:00","guid":{"rendered":"https:\/\/waldunsteel.com\/?post_type=portfolio&#038;p=821"},"modified":"2023-02-15T01:06:00","modified_gmt":"2023-02-15T01:06:00","slug":"4140-acier","status":"publish","type":"portfolio","link":"https:\/\/waldunsteel.com\/fr\/products\/4140-steel\/","title":{"rendered":"Acier alli\u00e9 AISI 4140"},"content":{"rendered":"<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-245dh-541745eaaa494b2ab5d353f5eaa31636\">\n.flex_column.av-245dh-541745eaaa494b2ab5d353f5eaa31636{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-245dh-541745eaaa494b2ab5d353f5eaa31636 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-kmafda0i-75cfefdf91c779a0c4831e8b6dc181ce'  ><div class='avia_textblock' ><h1 style=\"text-align: center;\"><strong><b><img decoding=\"async\" class=\"size-full wp-image-1278 aligncenter\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/AISI-4140-Alloy-Steel-Round-Bars.jpg\" alt=\"barres rondes en acier alli\u00e9 aisi 4140\" width=\"495\" height=\"399\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/AISI-4140-Alloy-Steel-Round-Bars.jpg 495w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/AISI-4140-Alloy-Steel-Round-Bars-300x242.jpg 300w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/03\/AISI-4140-Alloy-Steel-Round-Bars-16x12.jpg 16w\" sizes=\"(max-width: 495px) 100vw, 495px\" \/><\/b><\/strong><\/h1>\n<h1 style=\"text-align: center;\"><strong><b>Acier alli\u00e9 AISI 4140 - ASTM A29<\/b><\/strong><\/h1>\n<p>Vous recherchez de l&#039;acier alli\u00e9 AISI 4140 ? WALDUN est le meilleur fabricant et exportateur d&#039;acier alli\u00e9 AISI 4140 de Chine. Vous pouvez obtenir rond, carr\u00e9, plat, bloc et arbre, etc. Nous sommes l&#039;un des plus grands fabricants en Chine avec plus de 15 ans d&#039;exp\u00e9rience. Nos produits ont \u00e9t\u00e9 export\u00e9s dans de nombreux pays du monde entier. Avec notre propre usine, nous pouvons fournir des produits de haute qualit\u00e9 \u00e0 un prix comp\u00e9titif ! Si vous souhaitez acheter ou vendre en gros de l&#039;acier alli\u00e9 AISI 4140 en vrac en grande quantit\u00e9, veuillez nous contacter d\u00e8s maintenant ! Nous vous offrirons des prix et un service imbattables qui ne peuvent \u00eatre \u00e9gal\u00e9s par d&#039;autres fournisseurs ! N&#039;h\u00e9sitez pas \u00e0 nous envoyer une demande si vous avez besoin d&#039;aide ou de plus amples informations sur notre entreprise ou nos services. Nous esp\u00e9rons avoir de vos nouvelles bient\u00f4t! L&#039;acier alli\u00e9 AISI 4140 est d\u00e9fini comme un acier faiblement alli\u00e9 qui a 1% Cr-Mo comme \u00e9l\u00e9ments d&#039;alliage de renforcement. Compar\u00e9 \u00e0 AISI 4130, il a une teneur en carbone plus \u00e9lev\u00e9e avec un bon \u00e9quilibre entre r\u00e9sistance, t\u00e9nacit\u00e9, r\u00e9sistance \u00e0 l&#039;abrasion et aux chocs et capacit\u00e9s de traitement thermique, mais pauvres en caract\u00e9ristiques de soudabilit\u00e9. AISI 4140 est g\u00e9n\u00e9ralement fourni \u00e0 l&#039;\u00e9tat tremp\u00e9 et revenu avec une duret\u00e9 de 28-32HRC. L&#039;acier 4140 est utilis\u00e9 pour fabriquer des pi\u00e8ces forg\u00e9es avec une r\u00e9sistance plus \u00e9lev\u00e9e et une section tremp\u00e9e plus grande que l&#039;acier 35CrMo, telles que les grands engrenages pour la traction des locomotives, les engrenages de transmission du compresseur, les essieux arri\u00e8re, les bielles et les clips \u00e0 ressort qui sont soumis \u00e0 de grandes charges, et \u00e9galement utilis\u00e9 pour les joints de tiges de forage de puits profonds de p\u00e9trole et les outils de r\u00e9cup\u00e9ration en dessous de 2000 m.<\/p>\n<h2><strong><b>Acier alli\u00e9 4140 <\/b><\/strong><strong><b>Formulaire d&#039;approvisionnement et taille et tol\u00e9rance<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>Formulaire d&#039;approvisionnement<\/td>\n<td>Taille (mm)<\/td>\n<td>Traiter<\/td>\n<td colspan=\"2\">Tol\u00e9rance<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Rond<\/td>\n<td>\u03a66-\u03a6100<\/td>\n<td>\u00c9tir\u00e9 \u00e0 froid<\/td>\n<td>Noir brillant<\/td>\n<td>Meilleur H11<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">\u03a616-\u03a6350<\/td>\n<td rowspan=\"2\">Lamin\u00e9 \u00e0 chaud<\/td>\n<td>Noir<\/td>\n<td>-0 \/ + 1 mm<\/td>\n<\/tr>\n<tr>\n<td>Pel\u00e9 \/ moulu<\/td>\n<td>Meilleur H11<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">\u03a690-\u03a61000<\/td>\n<td rowspan=\"2\">Forg\u00e9 \u00e0 chaud<\/td>\n<td>Noir<\/td>\n<td>-0 \/ + 5 mm<\/td>\n<\/tr>\n<tr>\n<td>Rugueux tourn\u00e9<\/td>\n<td>-0 \/ + 3 mm<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Plat \/ carr\u00e9 \/ bloc<\/td>\n<td>\u00c9paisseur: 120-800<\/td>\n<td rowspan=\"2\">Forg\u00e9 \u00e0 chaud<\/td>\n<td>Noir<\/td>\n<td>-0 \/ + 8 mm<\/td>\n<\/tr>\n<tr>\n<td>Largeur: 120-1500<\/td>\n<td>Rugueux usin\u00e9<\/td>\n<td>-0 \/ + 3 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Remarque: la tol\u00e9rance peut \u00eatre personnalis\u00e9e selon les demandes<\/p>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Composition chimique<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>Standard<\/td>\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<td>Cr<\/td>\n<td width=\"60\">Ni<\/td>\n<td>Mo<\/td>\n<\/tr>\n<tr>\n<td>ASTM A29<\/td>\n<td>4140<\/td>\n<td>0,38-0,43<\/td>\n<td>0,15-0,35<\/td>\n<td>0,75-1,00<\/td>\n<td>\u2264 0,035<\/td>\n<td>\u2264 0,04<\/td>\n<td>0,8-1,1<\/td>\n<td width=\"60\">-<\/td>\n<td>0,15-0,25<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">EN10083<\/td>\n<td>42CrMo4<\/td>\n<td rowspan=\"2\">0,38-0,45<\/td>\n<td rowspan=\"2\">\u2264 0,4<\/td>\n<td rowspan=\"2\">0,6-0,90<\/td>\n<td rowspan=\"2\">\u2264 0,025<\/td>\n<td rowspan=\"2\">\u2264 0,035<\/td>\n<td rowspan=\"2\">0,9-1,2<\/td>\n<td rowspan=\"2\" width=\"60\">-<\/td>\n<td rowspan=\"2\">0,15-0,30<\/td>\n<\/tr>\n<tr>\n<td>1.7225<\/td>\n<\/tr>\n<tr>\n<td>JIS G4105<\/td>\n<td>SCM440<\/td>\n<td>0,38-0,43<\/td>\n<td>0,15-0,35<\/td>\n<td>0,6-0,85<\/td>\n<td>\u2264 0,035<\/td>\n<td>\u2264 0,04<\/td>\n<td>0,9-1,2<\/td>\n<td width=\"60\">-<\/td>\n<td>0,15-0,30<\/td>\n<\/tr>\n<tr>\n<td>GB 3077<\/td>\n<td>42CrMo<\/td>\n<td>0,38-0,45<\/td>\n<td>0,17-0,37<\/td>\n<td>0,5-0,80<\/td>\n<td>\u2264 0,035<\/td>\n<td>\u2264 0,035<\/td>\n<td>0,9-1,2<\/td>\n<td width=\"60\">-<\/td>\n<td>0,15-0,25<\/td>\n<\/tr>\n<tr>\n<td>BS 970<\/td>\n<td>EN19<\/td>\n<td>0,35-0,45<\/td>\n<td>0,15-0,35<\/td>\n<td>0,5-0,80<\/td>\n<td>\u2264 0,035<\/td>\n<td>\u2264 0,035<\/td>\n<td>0,9-1,5<\/td>\n<td width=\"60\">-<\/td>\n<td>0,2-0,40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Propri\u00e9t\u00e9 physique<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>Densit\u00e9 g \/ cm3<\/td>\n<td colspan=\"5\">7.85<\/td>\n<\/tr>\n<tr>\n<td>Point de fusion \u00b0 C<\/td>\n<td colspan=\"5\">1416<\/td>\n<\/tr>\n<tr>\n<td>Coefficient de Poisson<\/td>\n<td colspan=\"5\">0,27-0,30<\/td>\n<\/tr>\n<tr>\n<td>Usinabilit\u00e9 (AISI 1212 comme usinabilit\u00e9 100%)<\/td>\n<td colspan=\"5\">65%<\/td>\n<\/tr>\n<tr>\n<td>Coefficient de dilatation thermique \u00b5m \/ m \u00b0 C<\/td>\n<td colspan=\"5\">12.2<\/td>\n<\/tr>\n<tr>\n<td>Conductivit\u00e9 thermique W \/ (mK)<\/td>\n<td colspan=\"5\">46<\/td>\n<\/tr>\n<tr>\n<td>Module d&#039;\u00e9lasticit\u00e9 10 ^ 3 N \/ mm2<\/td>\n<td colspan=\"5\">210<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistivit\u00e9 \u00e9lectrique Ohm.mm2 \/ m<\/td>\n<td colspan=\"5\">0.19<\/td>\n<\/tr>\n<tr>\n<td>Capacit\u00e9 thermique sp\u00e9cifique J \/ (kg.K)<\/td>\n<td colspan=\"5\">460<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Module d&#039;\u00e9lasticit\u00e9 10 ^ 3 N \/ mm2<\/td>\n<td>100 \u2103<\/td>\n<td>200 \u2103<\/td>\n<td>300 \u2103<\/td>\n<td>400 \u2103<\/td>\n<td>500 \u2103<\/td>\n<\/tr>\n<tr>\n<td>205<\/td>\n<td>195<\/td>\n<td>185<\/td>\n<td>175<\/td>\n<td>165<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Dilatation thermique 10 ^ 6 m \/ (mK)<\/td>\n<td>100 \u2103<\/td>\n<td>200 \u2103<\/td>\n<td>300 \u2103<\/td>\n<td>400 \u2103<\/td>\n<td>500 \u2103<\/td>\n<\/tr>\n<tr>\n<td>11.1<\/td>\n<td>12.1<\/td>\n<td>12.9<\/td>\n<td>13.5<\/td>\n<td>13.9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Propri\u00e9t\u00e9 m\u00e9canique<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td>Condition m\u00e9canique<\/td>\n<td>R<\/td>\n<td>S<\/td>\n<td>S<\/td>\n<td>T<\/td>\n<td>U<\/td>\n<td>V<\/td>\n<td>W<\/td>\n<\/tr>\n<tr>\n<td>Section de d\u00e9cision mm<\/td>\n<td>250<\/td>\n<td>250<\/td>\n<td>150<\/td>\n<td>100<\/td>\n<td>63<\/td>\n<td>30<\/td>\n<td>20<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance \u00e0 la traction Mpa<\/td>\n<td>700-850<\/td>\n<td>770-930<\/td>\n<td>770-930<\/td>\n<td>850-1000<\/td>\n<td>930-1080<\/td>\n<td>1000-1150<\/td>\n<td>1080-1230<\/td>\n<\/tr>\n<tr>\n<td>Limite d&#039;\u00e9lasticit\u00e9 Mpa Min<\/td>\n<td>480<\/td>\n<td>540<\/td>\n<td>570<\/td>\n<td>655<\/td>\n<td>740<\/td>\n<td>835<\/td>\n<td>925<\/td>\n<\/tr>\n<tr>\n<td>Allongement %<\/td>\n<td>15<\/td>\n<td>13<\/td>\n<td>15<\/td>\n<td>13<\/td>\n<td>12<\/td>\n<td>12<\/td>\n<td>12<\/td>\n<\/tr>\n<tr>\n<td>Izod Impact J Min<\/td>\n<td>34<\/td>\n<td>27<\/td>\n<td>54<\/td>\n<td>54<\/td>\n<td>47<\/td>\n<td>47<\/td>\n<td>40<\/td>\n<\/tr>\n<tr>\n<td>Charpy Impact J Min<\/td>\n<td>28<\/td>\n<td>22<\/td>\n<td>50<\/td>\n<td>50<\/td>\n<td>42<\/td>\n<td>42<\/td>\n<td>35<\/td>\n<\/tr>\n<tr>\n<td>Duret\u00e9 Brinell HB<\/td>\n<td>201-255<\/td>\n<td>233-277<\/td>\n<td>233-277<\/td>\n<td>248-302<\/td>\n<td>269-331<\/td>\n<td>293-352<\/td>\n<td>311-375<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>R\u00e9sistance \u00e0 haute temp\u00e9rature<\/b><\/strong><\/h2>\n<table>\n<tbody>\n<tr>\n<td colspan=\"8\"><strong><b>Pour les pi\u00e8ces forg\u00e9es lourdes tremp\u00e9es et revenus<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td rowspan=\"2\">Diam\u00e8tre mm<\/td>\n<td colspan=\"7\">Limite d&#039;\u00e9lasticit\u00e9 MPa<\/td>\n<\/tr>\n<tr>\n<td>20 \u2103<\/td>\n<td>100 \u2103<\/td>\n<td>200 \u2103<\/td>\n<td>250 \u2103<\/td>\n<td>300 \u2103<\/td>\n<td>350 \u2103<\/td>\n<td>400 \u2103<\/td>\n<\/tr>\n<tr>\n<td>\u2264250<\/td>\n<td>510<\/td>\n<td>486<\/td>\n<td>461<\/td>\n<td>441<\/td>\n<td>422<\/td>\n<td>392<\/td>\n<td>363<\/td>\n<\/tr>\n<tr>\n<td>250-500<\/td>\n<td>460<\/td>\n<td>431<\/td>\n<td>412<\/td>\n<td>402<\/td>\n<td>382<\/td>\n<td>353<\/td>\n<td>324<\/td>\n<\/tr>\n<tr>\n<td>500-750<\/td>\n<td>390<\/td>\n<td>333<\/td>\n<td>333<\/td>\n<td>324<\/td>\n<td>304<\/td>\n<td>275<\/td>\n<td>245<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Forgeage<\/b><\/strong><\/h2>\n<p>La temp\u00e9rature de forgeage doit \u00eatre effectu\u00e9e entre 900 \u2103 -1200 \u2103, plus la temp\u00e9rature de fin de forgeage est basse, plus la taille du grain est fine.Tenez la temp\u00e9rature jusqu&#039;\u00e0 ce qu&#039;elle soit uniforme avant la forge, temp\u00e9rature de forgeage minimum 850 \u00b0 C, donc ne forgez pas en dessous de 850 \u2103 L&#039;acier .AISI 4140 doit \u00eatre refroidi aussi lentement que possible \u00e0 l&#039;air calme ou dans le sable apr\u00e8s avoir \u00e9t\u00e9 forg\u00e9.<\/p>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Normaliser<\/b><\/strong><\/h2>\n<p>La normalisation est utilis\u00e9e pour affiner la structure des pi\u00e8ces forg\u00e9es qui auraient pu refroidir de mani\u00e8re non uniforme apr\u00e8s forgeage, et consid\u00e9r\u00e9e comme un traitement de conditionnement avant le traitement thermique final.La temp\u00e9rature de normalisation pour l&#039;acier AISI 4140 doit \u00eatre effectu\u00e9e entre 870 \u2103 -900 \u2103. maintenir le temps appropri\u00e9 pour que l&#039;acier soit compl\u00e8tement chauff\u00e9 pour terminer la transformation du ferrite en aust\u00e9nite. Refroidir \u00e0 l&#039;air calme.<\/p>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Recuit<\/b><\/strong><\/h2>\n<p>Apr\u00e8s forg\u00e9, l&#039;acier AISI 4140 peut \u00eatre recuit. Refroidir lentement dans le four.Ce traitement formera une structure adapt\u00e9e \u00e0 l&#039;usinage.La duret\u00e9 maximale est de 241 HB.<\/p>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Durcissement<\/b><\/strong><\/h2>\n<p>Ce traitement thermique permettra d&#039;obtenir une structure martensite apr\u00e8s trempe.Il doit \u00eatre effectu\u00e9 entre 840 \u2103 -875 \u2103, maintenir le temps appropri\u00e9 pour que l&#039;acier soit compl\u00e8tement chauff\u00e9, tremper pendant 10 \u00e0 15 minutes par section de 25 mm et tremper dans l&#039;huile, l&#039;eau ou polym\u00e8re selon les besoins. La trempe doit \u00eatre suivie imm\u00e9diatement apr\u00e8s la trempe.<\/p>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Trempe<\/b><\/strong><\/h2>\n<p>Trempe<strong><b>\u00a0<\/b><\/strong>est g\u00e9n\u00e9ralement effectu\u00e9e pour soulager les contraintes du processus de durcissement, mais principalement pour obtenir la duret\u00e9 et les propri\u00e9t\u00e9s m\u00e9caniques requises. La temp\u00e9rature de revenu r\u00e9elle sera choisie pour r\u00e9pondre aux propri\u00e9t\u00e9s requises. Chauffer soigneusement l&#039;AISI 4140 \u00e0 une temp\u00e9rature appropri\u00e9e, g\u00e9n\u00e9ralement entre 550 \u2103 -700 \u2103, faire tremper \u00e0 la temp\u00e9rature pendant 2 heures par 25 mm de section de r\u00e9glage, puis refroidir \u00e0 l&#039;air. entre 250 \u2103 -375 \u2103 n&#039;est pas \u00e9vit\u00e9 car un revenu dans cette plage r\u00e9duira s\u00e9rieusement la valeur d&#039;impact, entra\u00eenant une fragilit\u00e9 du revenu.<\/p>\n<h2><strong><b>Acier 4140 <\/b><\/strong><strong><b>Application<\/b><\/strong><\/h2>\n<p>L&#039;acier AISI 4140 trouve de nombreuses applications comme pi\u00e8ces forg\u00e9es pour les industries a\u00e9rospatiale, p\u00e9troli\u00e8re et gazi\u00e8re, automobile, agricole et de la d\u00e9fense, etc. , pi\u00e8ces d&#039;exploitation foresti\u00e8re, arbres, pignons, goujons, pignons, arbres de pompe, v\u00e9rins et couronnes, etc.<\/p>\n<h2><em><strong>SAE 4140 VS AISI 4140<\/strong><\/em><\/h2>\n<p>Avec l&#039;augmentation du volume des \u00e9changes internationaux de mat\u00e9riaux en acier, les codes de qualit\u00e9 d&#039;acier SAE\/AISI sont souvent rencontr\u00e9s dans les demandes de renseignements, tels que les codes communs AISI 4140 et SAE 4140, SAE 1045 et AISI 1045, AISI 4340 et SAE 4340, etc.<\/p>\n<p>Donc la question est, repr\u00e9sentent-ils le m\u00eame mat\u00e9riau ?<\/p>\n<p>Pr\u00e9cisons tout d&#039;abord qu&#039;AISI et SAE signifient l&#039;American Iron and Steel Institute (AISI) et la Society of Automotive Engineers (SAE). Ces deux associations ont particip\u00e9 \u00e0 la normalisation du syst\u00e8me de codage num\u00e9rique de l&#039;acier, et progressivement int\u00e9gr\u00e9 dans le Syst\u00e8me de joint de nomenclature de nuance d&#039;acier AISI\/SAE.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-3238 size-full\" src=\"https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-AISI-LOGO.jpg\" sizes=\"(max-width: 562px) 100vw, 562px\" srcset=\"https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-AISI-LOGO.jpg 562w, https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-AISI-LOGO-300x75.jpg 300w\" alt=\"LOGO SAE-AISI\" width=\"562\" height=\"141\" \/><\/p>\n<p>La valeur de SAE\/AISI est que les ing\u00e9nieurs techniques peuvent obtenir des informations g\u00e9n\u00e9rales (mais non exhaustives) sur les types d&#039;acier et leurs nuances gr\u00e2ce \u00e0 ce syst\u00e8me de nomenclature des nuances d&#039;acier. Jusqu&#039;\u00e0 pr\u00e9sent, les codes de nuances d&#039;acier SAE et AISI sont souvent cit\u00e9s dans la citation et certification des produits sid\u00e9rurgiques aux \u00c9tats-Unis, sans les distinguer d\u00e9lib\u00e9r\u00e9ment.<\/p>\n<p>Par cons\u00e9quent, \u00e0 partir de ce qui pr\u00e9c\u00e8de, on peut voir que &quot;4140&quot;, &quot;AISI 4140&quot; ou &quot;SAE 4140&quot;, bien qu&#039;\u00e9crit diff\u00e9remment, mais dans la plupart des applications industrielles g\u00e9n\u00e9rales, tout ce qui pr\u00e9c\u00e8de est consid\u00e9r\u00e9 comme \u00e9quivalent.<\/p>\n<h2><strong>Temp\u00e9rature critique pour le traitement thermique de SAE 4140<\/strong><\/h2>\n<ul>\n<li>Ac1:730\u2103<\/li>\n<li>Ac3:780\u2103<\/li>\n<li>Ar1:690\u2103<\/li>\n<li>Mme\u00a0: 360\u2103<\/li>\n<\/ul>\n<h2><em><strong>Traitement thermique pour SAE 4140<\/strong><\/em><\/h2>\n<ul>\n<li><strong>Normaliser<\/strong><\/li>\n<\/ul>\n<p>Apr\u00e8s le travail \u00e0 chaud, la normalisation SAE 4140 peut affiner les grains, homog\u00e9n\u00e9iser la structure et pr\u00e9parer la structure pour le traitement thermique final (en particulier pour Q&amp;T).<\/p>\n<p>D\u00e9tails du processus\u00a0:<\/p>\n<ol>\n<li>Temp\u00e9rature de normalisation\u00a0: 840-880\u00a0\u00b0C<\/li>\n<li>Chauffage et conservation de la chaleur par \u00e9tapes \u00e0 450\u00b0C, 650\u00b0C<\/li>\n<li>Contr\u00f4ler la vitesse de chauffage pour assurer un chauffage uniforme.<\/li>\n<li>Refroidissement par air, qui peut \u00eatre acc\u00e9l\u00e9r\u00e9 en soufflant de l&#039;air ou du brouillard d&#039;eau.<\/li>\n<\/ol>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3243\" src=\"https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-4140-Normalizing-Diagram.png\" sizes=\"(max-width: 830px) 100vw, 830px\" srcset=\"https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-4140-Normalizing-Diagram.png 830w, https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-4140-Normalizing-Diagram-300x161.png 300w\" alt=\"Diagramme de normalisation SAE 4140\" width=\"830\" height=\"445\" \/><\/p>\n<p>Diagramme de normalisation SAE 4140<\/p>\n<ul>\n<li><strong>Recuit<\/strong><\/li>\n<\/ul>\n<p>Pour le recuit de SAE 4140, l&#039;objectif principal est de r\u00e9duire la duret\u00e9, d&#039;am\u00e9liorer l&#039;usinabilit\u00e9 et de r\u00e9duire les contraintes r\u00e9siduelles.<br \/>\nLes m\u00e9thodes de recuit courantes sont g\u00e9n\u00e9ralement divis\u00e9es en types suivants.<\/p>\n<ul>\n<li>Recuit complet (recuit de recristallisation)\uff1a800-850\u00b0C<\/li>\n<li>Recuit isotherme\uff1a675\u00b0C<\/li>\n<li>Recuit anti-stress\uff1a600-650\u00b0C<\/li>\n<\/ul>\n<p>M\u00e9thode de refroidissement\u00a0: refroidissement du four<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-3252\" src=\"https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-4140-Annealing-Diagram.png\" sizes=\"(max-width: 830px) 100vw, 830px\" srcset=\"https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-4140-Annealing-Diagram.png 830w, https:\/\/www.fuhongforge.com\/wp-content\/uploads\/2015\/04\/SAE-4140-Annealing-Diagram-300x157.png 300w\" alt=\"Diagramme de recuit SAE 4140\" width=\"830\" height=\"435\" \/><\/p>\n<p>Diagramme de recuit SAE 4140<\/p>\n<ul>\n<li><strong>\u00a0Trempe et revenu (QT) pour SAE 4140<\/strong><\/li>\n<\/ul>\n<p>La trempe et le revenu font r\u00e9f\u00e9rence \u00e0 un processus de traitement thermique utilis\u00e9 pour am\u00e9liorer les propri\u00e9t\u00e9s m\u00e9caniques globales des mat\u00e9riaux en acier. C&#039;est-\u00e0-dire qu&#039;apr\u00e8s trempe, il est soumis \u00e0 un traitement de revenu \u00e0 haute temp\u00e9rature.<\/p>\n<p>Pour l&#039;acier SAE 4140, le but de la trempe et du revenu est de faire en sorte que le mat\u00e9riau obtienne une bonne combinaison de r\u00e9sistance et de t\u00e9nacit\u00e9, qui pr\u00e9sente non seulement une r\u00e9sistance \u00e9lev\u00e9e, mais \u00e9galement une excellente t\u00e9nacit\u00e9, plasticit\u00e9 et performances de coupe.<\/p>\n<h2>D\u00e9tails du processus\u00a0:<\/h2>\n<p>temp\u00e9rature 1.Quenching : 840-880\u00b0C<br \/>\n2. maintenez \u00e0 cette temp\u00e9rature puis trempez dans de l&#039;huile ou de l&#039;eau<br \/>\n3. Trempe d\u00e8s que possible lorsque la temp\u00e9rature est basse \u00e0 ambiante<br \/>\n4. chauffer uniform\u00e9ment \u00e0 la temp\u00e9rature appropri\u00e9e de 540-680 \u00b0 C<br \/>\n5. garder le mat\u00e9riau hors du four, puis refroidir \u00e0 l&#039;air<\/p>\n<p>Duret\u00e9 de trempe : 55-59HRC<\/p>\n<p>Temp\u00e9rature de trempe : 220-650 \u00b0C, duret\u00e9 correspondante : 28-58HRC.<\/p>\n<h2><strong>Propri\u00e9t\u00e9 m\u00e9canique Pour SAE 4140 \u00e0 l&#039;\u00e9tat tremp\u00e9 et revenu<\/strong><\/h2>\n<p>1.R\u00e9sistance \u00e0 la traction : \u22651100MPa<br \/>\npoint 2.Yield : \u2265950MPa<br \/>\n3.R\u00e9duction en pourcentage de la zone apr\u00e8s fracture\u00a0: \u226545%<br \/>\n4. Allongement apr\u00e8s fracture : \u226512%<br \/>\n5. test d&#039;impact (+ 20 \u00b0 C): transversal - 26 ~ 42J; Longitud - 49 ~ 55J<\/p>\n<h2><em><strong>Condition de livraison<\/strong><\/em><\/h2>\n<p>1. forme: rond \/ carr\u00e9 \/ plat \/ arbres \/ rouleaux \/ blocs<br \/>\n2. \u00e9tat de surface: surface noire \/ surface brillante<br \/>\n3. traitement thermique: normalis\u00e9 \/ recuit \/ QT<br \/>\n4. rectitude: Max 3 mm \/ m (une rectitude am\u00e9lior\u00e9e peut \u00eatre disponible sur demande)<br \/>\n5. longueur: 3000-5800mm adapt\u00e9 pour un conteneur de 20 \u2033. au-dessus de 6000 mm, convient pour un conteneur de 40 pouces<br \/>\n6. granulom\u00e9trie: 5-8 selon ASTM E112-96<br \/>\n7. norme ultrasonique: Sep1921 \/ ASTM A388 \/ EN 10228-3<br \/>\n8. duret\u00e9 typique: HB269-302<br \/>\n9.Inclusion non m\u00e9tallique: 2 max selon ASTM E45 \/ K4\u226420 selon DIN 50602<br \/>\n10.Rapport de forgeage: minimum 4: 1<br \/>\n11.Ingot Fusion: EAF + LF + VD<br \/>\n12.Marquage: Grade \/ Poids \/ Longueur \/ Taille \/ Num\u00e9ro de chaleur<\/p>\n<h2><em><strong>Certification de qualit\u00e9<\/strong><\/em><\/h2>\n<p>Un rapport d&#039;essai du mat\u00e9riau (certificat d&#039;inspection EN 10204 3.1) sera fourni, documentant les \u00e9l\u00e9ments suivants:<br \/>\n1. analyse chimique<br \/>\n2. propri\u00e9t\u00e9s m\u00e9caniques<br \/>\n3. duret\u00e9 de surface<br \/>\n4.Inclusion non m\u00e9tallique<br \/>\n5. processus de traitement thermique<br \/>\n6. taille des grains<br \/>\n7. ratio de forgeage<br \/>\nrapport de test 8.Ultrasonic<\/p>\n<h2><strong>Taille et condition d&#039;approvisionnement pour SAE 4140<\/strong><\/h2>\n<ul>\n<li><strong>Barres rondes<\/strong>: Dia.80 - 1,000mm comme forg\u00e9<\/li>\n<li><strong>Barres plates \/ carr\u00e9es<\/strong>: \u00c9paisseur Max.800mm<\/li>\n<li><strong>Arbres, rouleaux, blocs<\/strong>: Personnalis\u00e9 ou selon le dessin<\/li>\n<li><strong>Barres rondes roul\u00e9es<\/strong>: Dia.14 \u2013 350mm avec UT Assurance<\/li>\n<\/ul>\n<p><strong>Traitement thermique:<\/strong>Tremp\u00e9 et revenu (+QT), normalisation (+N), recuit (+A)<br \/>\n<strong>Finition de surface<\/strong>: Noir \/ rugueux tourn\u00e9 \/ pel\u00e9<\/p>\n<\/div><\/section><br \/>\n<div  class='hr av-8gb3x-9791f84fa12b7605b0b0695b33052860 hr-default  avia-builder-el-2  el_after_av_textblock  el_before_av_portfolio  avia-builder-el-last'><span class='hr-inner'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<div  id=\"av-sc-portfolio-1\"  class=\"av-portfolio-grid-sorting-container\"><div class='sort_width_container  av-sort-yes' data-portfolio-id='1' ><div id='js_sort_items' ><div class='sort_by_cat hidden'><a href=\"#\" data-filter=\"all_sort\" class=\"all_sort_button active_sort\"><span class=\"inner_sort_button\"><span>Tout<\/span><small class=\"av-cat-count\"> 9 <\/small><\/span><\/a><span class=\"text-sep engineeringsteel_sort_sep\">\/<\/span><a href=\"#\" 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32CrMo12\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/32CrMo12-forged-round-bar-260x185.jpg 260w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/32CrMo12-forged-round-bar-16x10.jpg 16w\" sizes=\"(max-width: 260px) 100vw, 260px\" \/><\/a><div class='grid-content'><div class='avia-arrow'><\/div><header class=\"entry-content-header\" aria-label=\"Portefeuille : Acier 36CrNiMo4 \/ 1.6511\"><h3 class='grid-entry-title entry-title' ><a href='https:\/\/waldunsteel.com\/fr\/products\/36crnimo4-1-6511-steel\/' title='36CrNiMo4 \/ 1.6511 Acier'>36CrNiMo4 \/ 1.6511 Acier<\/a><\/h3><\/header><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div><div data-ajax-id='1643' class='grid-entry flex_column isotope-item all_sort no_margin post-entry post-entry-1643 grid-entry-overview grid-loop-6 grid-parity-even  alloysteel_sort engineeringsteel_sort  av_one_third  default_av_fullwidth'><article class='main_color inner-entry' ><a href=\"https:\/\/waldunsteel.com\/fr\/products\/32crmo12-1-7361-steel\/\" title='Acier 32CrMo12 \/ 1.7361'  data-rel='grid-1' class='grid-image avia-hover-fx'> <img decoding=\"async\" fetchpriority=\"high\" width=\"260\" height=\"185\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/32CrMo12-forged-round-bar-260x185.jpg\" class=\"wp-image-1644 avia-img-lazy-loading-not-1644 attachment-portfolio_small size-portfolio_small wp-post-image\" alt=\"Barre ronde forg\u00e9e 32CrMo12\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/32CrMo12-forged-round-bar-260x185.jpg 260w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/32CrMo12-forged-round-bar-16x10.jpg 16w\" sizes=\"(max-width: 260px) 100vw, 260px\" \/><\/a><div class='grid-content'><div class='avia-arrow'><\/div><header class=\"entry-content-header\" aria-label=\"Portefeuille : Acier 32CrMo12 \/ 1.7361\"><h3 class='grid-entry-title entry-title' ><a href='https:\/\/waldunsteel.com\/fr\/products\/32crmo12-1-7361-steel\/' title='Acier 32CrMo12 \/ 1.7361'>Acier 32CrMo12 \/ 1.7361<\/a><\/h3><\/header><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div><div data-ajax-id='1639' class='grid-entry flex_column isotope-item all_sort no_margin post-entry post-entry-1639 grid-entry-overview grid-loop-7 grid-parity-odd  alloysteel_sort engineeringsteel_sort  av_one_third first default_av_fullwidth'><article class='main_color inner-entry' ><a href=\"https:\/\/waldunsteel.com\/fr\/products\/17crnimo6-1-6587-steel\/\" title='17CrNiMo6 \/ 1.6587 Acier'  data-rel='grid-1' class='grid-image avia-hover-fx'> <img decoding=\"async\" fetchpriority=\"high\" width=\"260\" height=\"185\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/04\/Is-20MnCr5-and-5120-Steel-the-Same-260x185.jpg\" class=\"wp-image-1440 avia-img-lazy-loading-not-1440 attachment-portfolio_small size-portfolio_small wp-post-image\" alt=\"est le m\u00eame acier 20mncr5 et 5120\" \/><\/a><div class='grid-content'><div class='avia-arrow'><\/div><header class=\"entry-content-header\" aria-label=\"Portefeuille : Acier 17CrNiMo6 \/ 1.6587\"><h3 class='grid-entry-title entry-title' ><a href='https:\/\/waldunsteel.com\/fr\/products\/17crnimo6-1-6587-steel\/' title='17CrNiMo6 \/ 1.6587 Acier'>17CrNiMo6 \/ 1.6587 Acier<\/a><\/h3><\/header><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div><div data-ajax-id='1615' class='grid-entry flex_column isotope-item all_sort no_margin post-entry post-entry-1615 grid-entry-overview grid-loop-8 grid-parity-even  alloysteel_sort engineeringsteel_sort  av_one_third  default_av_fullwidth'><article class='main_color inner-entry' ><a href=\"https:\/\/waldunsteel.com\/fr\/products\/39nicrmo3-1-6510-steel\/\" title='39NiCrMo3 \/ 1.6510 Acier'  data-rel='grid-1' class='grid-image avia-hover-fx'> <img decoding=\"async\" fetchpriority=\"high\" width=\"260\" height=\"185\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/AISI-9840-Steel-bar-630x320-1-260x185.jpg\" class=\"wp-image-1616 avia-img-lazy-loading-not-1616 attachment-portfolio_small size-portfolio_small wp-post-image\" alt=\"AISI-9840-Barre-d&#039;acier-630x320\" \/><\/a><div class='grid-content'><div class='avia-arrow'><\/div><header class=\"entry-content-header\" aria-label=\"Portefeuille : Acier 39NiCrMo3 \/ 1.6510\"><h3 class='grid-entry-title entry-title' ><a href='https:\/\/waldunsteel.com\/fr\/products\/39nicrmo3-1-6510-steel\/' title='39NiCrMo3 \/ 1.6510 Acier'>39NiCrMo3 \/ 1.6510 Acier<\/a><\/h3><\/header><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div><div data-ajax-id='1613' class='grid-entry flex_column isotope-item all_sort no_margin post-entry post-entry-1613 grid-entry-overview grid-loop-9 grid-parity-odd  post-entry-last  alloysteel_sort engineeringsteel_sort  av_one_third  default_av_fullwidth'><article class='main_color inner-entry' ><a href=\"https:\/\/waldunsteel.com\/fr\/products\/34crmos4-1-7226-steel\/\" title='34CrMoS4 \/ 1.7226 Acier'  data-rel='grid-1' class='grid-image avia-hover-fx'> <img decoding=\"async\" fetchpriority=\"high\" width=\"260\" height=\"185\" src=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/34CrMo4-steel-260x185.jpg\" class=\"wp-image-1610 avia-img-lazy-loading-not-1610 attachment-portfolio_small size-portfolio_small wp-post-image\" alt=\"Acier 34CrMo4\" srcset=\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/34CrMo4-steel-260x185.jpg 260w, https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/05\/34CrMo4-steel-16x12.jpg 16w\" sizes=\"(max-width: 260px) 100vw, 260px\" \/><\/a><div class='grid-content'><div class='avia-arrow'><\/div><header class=\"entry-content-header\" aria-label=\"Portefeuille : Acier 34CrMoS4 \/ 1.7226\"><h3 class='grid-entry-title entry-title' ><a href='https:\/\/waldunsteel.com\/fr\/products\/34crmos4-1-7226-steel\/' title='34CrMoS4 \/ 1.7226 Acier'>34CrMoS4 \/ 1.7226 Acier<\/a><\/h3><\/header><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div><\/div><\/div>   <!--   class=\"av-portfolio-grid-sorting-container\"  --><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-hh7v9-c4545cfe0a8bcb2448b381ffcdbc7f17\">\n.flex_column.av-hh7v9-c4545cfe0a8bcb2448b381ffcdbc7f17{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-hh7v9-c4545cfe0a8bcb2448b381ffcdbc7f17 av_one_third  avia-builder-el-4  el_after_av_two_third  avia-builder-el-last  flex_column_div av-zero-column-padding'     ><p><section  class='av_textblock_section av-kmafbu8c-4dd3d6546a15b85b81113866da828666'  ><div class='avia_textblock' >\n<\/div><\/section><br \/>\n<div  class='avia-builder-widget-area clearfix  avia-builder-el-6  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":1278,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"portfolio_entries":[30,29],"class_list":["post-821","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_entries-alloysteel","portfolio_entries-engineeringsteel"],"_links":{"self":[{"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio\/821","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=821"}],"version-history":[{"count":0,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio\/821\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/media\/1278"}],"wp:attachment":[{"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/media?parent=821"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/tags?post=821"},{"taxonomy":"portfolio_entries","embeddable":true,"href":"https:\/\/waldunsteel.com\/fr\/wp-json\/wp\/v2\/portfolio_entries?post=821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}