{"id":4458,"date":"2026-09-11T06:21:31","date_gmt":"2026-09-11T06:21:31","guid":{"rendered":"https:\/\/hontitan.com\/?post_type=product&#038;p=4458"},"modified":"2026-09-19T06:21:09","modified_gmt":"2026-09-19T06:21:09","slug":"grade-5-ti-6al-4v-titanium-flat-bar","status":"publish","type":"product","link":"https:\/\/hontitan.com\/fr\/product\/grade-5-ti-6al-4v-titanium-flat-bar\/","title":{"rendered":"Grade 5 Barre Plate de Titane en Ti-6Al-4V"},"content":{"rendered":"<p data-v-md-line=\"1\">Ti-6Al-4V (UNS R56400, DIN 3.7165) est l'alliage de titane le plus couramment sp\u00e9cifi\u00e9, repr\u00e9sentant environ 50% de la consommation mondiale de titane. La barre plate Grade 5 en \u00e9tat de recuit offre une limite d'\u00e9lasticit\u00e9 minimale r\u00e9sistance \u00e0 la traction de 130 ksi (895 MPa) et un rapport r\u00e9sistance\/poids environ 3\u00d7 sup\u00e9rieur \u00e0 celui de l'acier de construction, ce qui en fait le mat\u00e9riau de r\u00e9f\u00e9rence pour les supports structurels a\u00e9rospatiaux, les \u00e9bauches d'implants m\u00e9dicaux, les \u00e9quipements de traitement chimique et les composants structurels marins.<\/p>\n<p data-v-md-line=\"3\">Le mat\u00e9riau est fourni selon\u00a0<strong>ASTM B348<\/strong>\u00a0(barres et billettes) ou\u00a0<strong>AMS 4928<\/strong>\u00a0(barres recuites et pi\u00e8ces forg\u00e9es), avec certificat de contr\u00f4le d'usine EN 10204 3.1 inclus en standard. Les \u00e9tats recuit et trait\u00e9 en solution puis vieilli (STA) sont tous deux disponibles.<\/p>\n<h2 data-v-md-heading=\"quick-specifications\" data-v-md-line=\"5\">Caract\u00e9ristiques techniques en bref<\/h2>\n<p data-v-md-line=\"7\">La barre plate en titane Grade 5 (Ti-6Al-4V) est conforme aux param\u00e8tres du tableau ci-dessous ; toutes les valeurs sont des minimums ou des plages selon la norme de r\u00e9f\u00e9rence, sauf indication contraire.<\/p>\n<table data-v-md-line=\"9\">\n<thead>\n<tr>\n<th>Param\u00e8tres<\/th>\n<th>Valeur<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Qualit\u00e9 des mat\u00e9riaux<\/strong><\/td>\n<td>Grade 5 \/ Ti-6Al-4V \/ UNS R56400 \/ DIN 3.7165 \/ TC4<\/td>\n<\/tr>\n<tr>\n<td><strong>Normes principales<\/strong><\/td>\n<td>ASTM B348 (barre et billette) ; AMS 4928 (recuit) ; AMS 4965 \/ AMS 4967 (STA)<\/td>\n<\/tr>\n<tr>\n<td><strong>Normes suppl\u00e9mentaires<\/strong><\/td>\n<td>ASTM F1472 (m\u00e9dical) ; ISO 5832-3 (implant chirurgical) ; MIL-T-9047 \/ AMS-T-9047<\/td>\n<\/tr>\n<tr>\n<td><strong>Condition<\/strong><\/td>\n<td>Recuit (standard) ; STA disponible sur demande<\/td>\n<\/tr>\n<tr>\n<td><strong>Plage d'\u00e9paisseur<\/strong><\/td>\n<td>3 mm \u2013 80 mm (0,118\u2033 \u2013 3,15\u2033)<\/td>\n<\/tr>\n<tr>\n<td><strong>Plage de largeur<\/strong><\/td>\n<td>20 mm \u2013 200 mm (0,787\u2033 \u2013 7,87\u2033)<\/td>\n<\/tr>\n<tr>\n<td><strong>Longueur<\/strong><\/td>\n<td>Jusqu'\u00e0 6 000 mm ; d\u00e9coupe sur mesure disponible<\/td>\n<\/tr>\n<tr>\n<td><strong>Tol\u00e9rance<\/strong><\/td>\n<td>Conforme \u00e0 ASTM B348 Tableau 10 (laminage \u00e0 chaud) ; tol\u00e9rances de finition \u00e0 froid plus strictes disponibles<\/td>\n<\/tr>\n<tr>\n<td><strong>Finition de la surface<\/strong><\/td>\n<td>D\u00e9cap\u00e9 (standard) ; poli, anodis\u00e9, sabl\u00e9 sur demande<\/td>\n<\/tr>\n<tr>\n<td><strong>MOQ<\/strong><\/td>\n<td>1 pi\u00e8ce (stock standard) ; d\u00e9coupe personnalis\u00e9e accept\u00e9e<\/td>\n<\/tr>\n<tr>\n<td><strong>D\u00e9lai d'ex\u00e9cution<\/strong><\/td>\n<td>3 \u00e0 5 jours ouvrables (tailles en stock) ; 7 \u00e0 20 jours ouvrables (sur mesure)<\/td>\n<\/tr>\n<tr>\n<td><strong>Certificat d'essai en usine<\/strong><\/td>\n<td>Norme EN 10204 3.1 incluse de s\u00e9rie<\/td>\n<\/tr>\n<tr>\n<td><strong>Syst\u00e8me qualit\u00e9<\/strong><\/td>\n<td>Cha\u00eene d'approvisionnement ISO 9001 \/ AS9100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-v-md-heading=\"chemical-composition\" data-v-md-line=\"25\">Composition chimique<\/h2>\n<p data-v-md-line=\"27\">Grade 5 (Ti-6Al-4V) composition chimique conforme \u00e0\u00a0<strong>ASTM B348<\/strong>\u00a0et\u00a0<strong>AMS 4928<\/strong>\u00a0(limites AMS 4928 plus strictes indiqu\u00e9es lorsqu'elles diff\u00e8rent) :<\/p>\n<table data-v-md-line=\"29\">\n<thead>\n<tr>\n<th>\u00c9l\u00e9ment<\/th>\n<th>Symbole<\/th>\n<th>Min (%)<\/th>\n<th>Max (%)<\/th>\n<th>AMS 4928 Max<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Aluminium<\/td>\n<td>Al<\/td>\n<td>5.50<\/td>\n<td>6.75<\/td>\n<td>6.75<\/td>\n<\/tr>\n<tr>\n<td>Vanadium<\/td>\n<td>V<\/td>\n<td>3.50<\/td>\n<td>4.50<\/td>\n<td>4.50<\/td>\n<\/tr>\n<tr>\n<td>Le fer<\/td>\n<td>Fe<\/td>\n<td>\u2014<\/td>\n<td>0.40<\/td>\n<td>0.30<\/td>\n<\/tr>\n<tr>\n<td>Oxyg\u00e8ne<\/td>\n<td>O<\/td>\n<td>\u2014<\/td>\n<td>0.20<\/td>\n<td>0.20<\/td>\n<\/tr>\n<tr>\n<td>Carbone<\/td>\n<td>C<\/td>\n<td>\u2014<\/td>\n<td>0.08<\/td>\n<td>0.08<\/td>\n<\/tr>\n<tr>\n<td>Azote<\/td>\n<td>N<\/td>\n<td>\u2014<\/td>\n<td>0.05<\/td>\n<td>0.05<\/td>\n<\/tr>\n<tr>\n<td>Hydrog\u00e8ne<\/td>\n<td>H<\/td>\n<td>\u2014<\/td>\n<td>0.015<\/td>\n<td>0.0125<\/td>\n<\/tr>\n<tr>\n<td>Yttrium<\/td>\n<td>Y<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>0.005<\/td>\n<\/tr>\n<tr>\n<td>Autre, chaque<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>0.10<\/td>\n<td>0.10<\/td>\n<\/tr>\n<tr>\n<td>Autre, total<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<td>0.40<\/td>\n<td>0.40<\/td>\n<\/tr>\n<tr>\n<td>Titane<\/td>\n<td>Ti<\/td>\n<td>Bal.<\/td>\n<td>Bal.<\/td>\n<td>Bal.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p data-v-md-line=\"43\"><strong>Remarque :<\/strong>\u00a0AMS 4928 impose des limites plus strictes sur le Fe (max 0,30 % contre 0,40 %) et le H (0,0125 % contre 0,015 %). Les applications a\u00e9rospatiales sp\u00e9cifient g\u00e9n\u00e9ralement AMS 4928 pour ces raisons.<\/p>\n<h2 data-v-md-heading=\"mechanical-properties\" data-v-md-line=\"45\">Propri\u00e9t\u00e9s m\u00e9caniques<\/h2>\n<h3 data-v-md-heading=\"annealed-condition-per-ams-4928\" data-v-md-line=\"47\">\u00c9tat recuit (selon AMS 4928)<\/h3>\n<p data-v-md-line=\"49\">Les propri\u00e9t\u00e9s m\u00e9caniques varient en fonction de la taille de la section transversale en raison des gradients microstructuraux dans l'\u00e9paisseur des sections plus importantes.<\/p>\n<table data-v-md-line=\"51\">\n<thead>\n<tr>\n<th>Section transversale (\u00e9paisseur)<\/th>\n<th>r\u00e9sistance \u00e0 la traction min<\/th>\n<th>limite d'\u00e9lasticit\u00e9 (d\u00e9calage de 0,2 %) min<\/th>\n<th>Allongement (2\u2033, min)<\/th>\n<th>Striction (min)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u2264 2,000 po (\u2264 50,8 mm)<\/td>\n<td>135 ksi \/ 931 MPa<\/td>\n<td>125 ksi \/ 862 MPa<\/td>\n<td>10%<\/td>\n<td>25%<\/td>\n<\/tr>\n<tr>\n<td>&gt; 2,000 \u2013 4,000 po (50,8\u2013101,6 mm)<\/td>\n<td>130 ksi \/ 896 MPa<\/td>\n<td>120 ksi \/ 827 MPa<\/td>\n<td>10%<\/td>\n<td>25%<\/td>\n<\/tr>\n<tr>\n<td>&gt; 4,000 \u2013 6,000 po (101,6\u2013152,4 mm)<\/td>\n<td>130 ksi \/ 896 MPa<\/td>\n<td>120 ksi \/ 827 MPa<\/td>\n<td>10%<\/td>\n<td>20%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 data-v-md-heading=\"solution-treated-and-aged-sta-per-ams-4965-ams-4967\" data-v-md-line=\"57\">Trait\u00e9 en solution et vieilli \u2014 TSV (selon AMS 4965 \/ AMS 4967)<\/h3>\n<p data-v-md-line=\"59\">Le traitement en solution et le vieillissement augmentent consid\u00e9rablement la r\u00e9sistance, avec une l\u00e9g\u00e8re r\u00e9duction de la ductilit\u00e9. Propri\u00e9t\u00e9s TSV typiques pour des sections de barre plate \u2264 2\u2033 :<\/p>\n<table data-v-md-line=\"61\">\n<thead>\n<tr>\n<th>Propri\u00e9t\u00e9<\/th>\n<th>Plage TSV typique<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>R\u00e9sistance \u00e0 la traction<\/td>\n<td>140\u2013170 ksi (965\u20131 172 MPa)<\/td>\n<\/tr>\n<tr>\n<td>Limite d'\u00e9lasticit\u00e9 (d\u00e9calage de 0,2%)<\/td>\n<td>130\u2013150 ksi (896\u20131 034 MPa)<\/td>\n<\/tr>\n<tr>\n<td>\u00c9longation<\/td>\n<td>8\u201310 % min<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9duction de la surface<\/td>\n<td>20\u201325 % min<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p data-v-md-line=\"68\"><em>La condition STA est traitable thermiquement ; la r\u00e9sistance maximale obtenue d\u00e9pend de l'\u00e9paisseur de la section et du cycle de traitement thermique. Contactez l'\u00e9quipe technique pour sp\u00e9cifier la condition requise.<\/em><\/p>\n<h3 data-v-md-heading=\"additional-physical-properties\" data-v-md-line=\"70\">Propri\u00e9t\u00e9s physiques suppl\u00e9mentaires<\/h3>\n<table data-v-md-line=\"72\">\n<thead>\n<tr>\n<th>Propri\u00e9t\u00e9<\/th>\n<th>Valeur<\/th>\n<th>R\u00e9f\u00e9rence<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Densit\u00e9<\/td>\n<td>4,43 g\/cm\u00b3 (0,160 lb\/in\u00b3)<\/td>\n<td>ASTM B311<\/td>\n<\/tr>\n<tr>\n<td>Module d'\u00e9lasticit\u00e9<\/td>\n<td>114 GPa (16 500 ksi)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>Coefficient de Poisson<\/td>\n<td>0.31<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>Conductivit\u00e9 thermique<\/td>\n<td>6,7\u20137,2 W\/(m\u00b7K) \u00e0 20\u00b0C<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>Coefficient de dilatation thermique<\/td>\n<td>8,8 \u00b5m\/(m\u00b7\u00b0C) (0\u2013100\u00b0C)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>Plage de fusion<\/td>\n<td>1 604\u20131 660\u00b0C (2 920\u20133 020\u00b0F)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>Capacit\u00e9 thermique sp\u00e9cifique<\/td>\n<td>526 J\/(kg\u00b7K)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-v-md-heading=\"technical-overview\" data-v-md-line=\"82\">Aper\u00e7u technique<\/h2>\n<p data-v-md-line=\"84\">Grade 5 titane (Ti-6Al-4V) est un alliage alpha-b\u00eata (\u03b1+\u03b2) dans lequel l'aluminium stabilise la phase alpha et le vanadium stabilise la phase b\u00eata, produisant une microstructure biphas\u00e9e qui \u00e9quilibre la r\u00e9sistance, la ductilit\u00e9 et la stabilit\u00e9 thermique jusqu'\u00e0 315\u00b0C (600\u00b0F).<\/p>\n<p data-v-md-line=\"86\">La r\u00e9sistance \u00e0 la corrosion de l'alliage provient d'un film passif d'oxyde de titane (TiO\u2082) se formant spontan\u00e9ment et auto-cicatrisant. Ce film offre une r\u00e9sistance exceptionnelle \u00e0 l'eau de mer, aux acides oxydants, aux milieux chlor\u00e9s (aqueux) et aux environnements alcalins. La d\u00e9gradation est limit\u00e9e aux acides r\u00e9ducteurs \u00e0 haute concentration (HCl concentr\u00e9, H\u2082SO\u2084 au-dessus des concentrations seuils) et au chlore gazeux anhydre. Le risque de corrosion sous contrainte (CSC) est faible en service aqueux ; la fragilisation par l'hydrog\u00e8ne n\u00e9cessite que la teneur en hydrog\u00e8ne soit maintenue \u2264 150 ppm lors du traitement et du traitement thermique.<\/p>\n<p data-v-md-line=\"88\">La barre plate est produite principalement par laminage \u00e0 chaud ou forgeage \u00e0 partir de lingots refondus par arc sous vide (VAR) ou fondus en creuset \u00e0 faisceau d'\u00e9lectrons (EB). La barre plate lamin\u00e9e \u00e0 chaud pr\u00e9sente une excellente plasticit\u00e9 et convient aux op\u00e9rations ult\u00e9rieures de formage, d'emboutissage ou de soudage. La barre plate finition \u00e0 froid permet des tol\u00e9rances dimensionnelles plus strictes (\u00b10,05\u20130,10 mm en \u00e9paisseur) et un meilleur \u00e9tat de surface pour les applications d'usinage de pr\u00e9cision. L'alliage est soudable par GTAW (TIG) et par soudage par faisceau d'\u00e9lectrons avec protection sous gaz inerte ; un traitement de d\u00e9tente des contraintes apr\u00e8s soudage est recommand\u00e9. L'usinabilit\u00e9 est comparable \u00e0 celle de l'acier inoxydable aust\u00e9nitique 304\/316 \u2014 des vitesses de coupe lentes, des avances importantes et un fluide de coupe non chlor\u00e9 sont n\u00e9cessaires pour ma\u00eetriser l'\u00e9crouissage et l'usure des outils.<\/p>\n<p data-v-md-line=\"90\"><strong>Note pyrophorique :<\/strong>\u00a0Les limailles, copeaux et poussi\u00e8res de meulage de titane peuvent s'enflammer au-dessus de 480\u00b0F (250\u00b0C). Les d\u00e9chets d'usinage doivent \u00eatre collect\u00e9s dans des conteneurs m\u00e9talliques ferm\u00e9s ; des agents extincteurs de classe D sont requis.<\/p>\n<h2 data-v-md-heading=\"dimensional-tolerances\" data-v-md-line=\"92\">Tol\u00e9rances dimensionnelles<\/h2>\n<h3 data-v-md-heading=\"hot-rolled-flat-bar-per-astm-b348-table-10\" data-v-md-line=\"94\">Barre plate lamin\u00e9e \u00e0 chaud (selon ASTM B348 tableau 10)<\/h3>\n<table data-v-md-line=\"96\">\n<thead>\n<tr>\n<th>Largeur (po.)<\/th>\n<th>Largeur (mm)<\/th>\n<th>\u00c9paisseur Tol\u00e9rance \u2264 0.500\u2033<\/th>\n<th>\u00c9paisseur Tol\u00e9rance &gt; 0.500\u20131.000\u2033<\/th>\n<th>\u00c9paisseur Tol\u00e9rance &gt; 1.000\u20132.000\u2033<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u2264 1.000<\/td>\n<td>\u2264 25.4<\/td>\n<td>\u00b10.008\u2033 (\u00b10.20 mm)<\/td>\n<td>\u00b10.010\u2033 (\u00b10.25 mm)<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>&gt; 1.000 \u2013 2.000<\/td>\n<td>25.4 \u2013 50.8<\/td>\n<td>\u00b10.012\u2033 (\u00b10.30 mm)<\/td>\n<td>\u00b10.015\u2033 (\u00b10.38 mm)<\/td>\n<td>\u00b10.031\u2033 (\u00b10.79 mm)<\/td>\n<\/tr>\n<tr>\n<td>&gt; 2.000 \u2013 4.000<\/td>\n<td>50.8 \u2013 101.6<\/td>\n<td>\u00b10.015\u2033 (\u00b10.38 mm)<\/td>\n<td>\u00b10.020\u2033 (\u00b10.51 mm)<\/td>\n<td>\u00b10.031\u2033 (\u00b10.79 mm)<\/td>\n<\/tr>\n<tr>\n<td>&gt; 4.000 \u2013 6.000<\/td>\n<td>101.6 \u2013 152.4<\/td>\n<td>\u00b10.015\u2033 (\u00b10.38 mm)<\/td>\n<td>\u00b10.020\u2033 (\u00b10.51 mm)<\/td>\n<td>\u00b10.031\u2033 (\u00b10.79 mm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 data-v-md-heading=\"cold-finished-flat-bar-per-astm-b348\" data-v-md-line=\"103\">Barre plate finition \u00e0 froid (par ASTM B348)<\/h3>\n<table data-v-md-line=\"105\">\n<thead>\n<tr>\n<th>Plage de largeur (po)<\/th>\n<th>Plage de largeur (mm)<\/th>\n<th>\u00c9paisseur Tol\u00e9rance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>&gt; 0,375 \u2013 1,000<\/td>\n<td>9.5 \u2013 25.4<\/td>\n<td>\u00b10,002\u2033 (\u00b10,05 mm)<\/td>\n<\/tr>\n<tr>\n<td>&gt; 1.000 \u2013 2.000<\/td>\n<td>25.4 \u2013 50.8<\/td>\n<td>\u00b10,003\u2033 (\u00b10,08 mm)<\/td>\n<\/tr>\n<tr>\n<td>&gt; 2,000 \u2013 3,000<\/td>\n<td>50.8 \u2013 76.2<\/td>\n<td>\u00b10,004\u2033 (\u00b10,10 mm)<\/td>\n<\/tr>\n<tr>\n<td>&gt; 3,000 \u2013 4,500<\/td>\n<td>76.2 \u2013 114.3<\/td>\n<td>\u00b10,005\u2033 (\u00b10,13 mm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-v-md-heading=\"available-product-forms\" data-v-md-line=\"112\">Formes de produit disponibles<\/h2>\n<p data-v-md-line=\"114\">Grade 5 (Ti-6Al-4V) la barre plate est disponible en quatre voies de production, chacune optimis\u00e9e pour diff\u00e9rentes exigences en aval :<\/p>\n<table data-v-md-line=\"116\">\n<thead>\n<tr>\n<th>Formulaire<\/th>\n<th>\u00c9paisseur typique<\/th>\n<th>Largeur typique<\/th>\n<th>Avantage cl\u00e9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Barre plate lamin\u00e9e \u00e0 chaud<\/strong><\/td>\n<td>6,35\u201350 mm<\/td>\n<td>25\u2013150 mm<\/td>\n<td>Formabilit\u00e9 plastique ; adapt\u00e9 au soudage, \u00e0 l'emboutissage, au formage \u00e0 chaud<\/td>\n<\/tr>\n<tr>\n<td><strong>Barre plate forg\u00e9e<\/strong><\/td>\n<td>10\u201380 mm<\/td>\n<td>30\u2013200 mm<\/td>\n<td>Microstructure \u00e0 grains fins et denses ; r\u00e9sistance \u00e0 la traction 950\u20131 000 MPa typique ; structures critiques pour l'a\u00e9rospatiale<\/td>\n<\/tr>\n<tr>\n<td><strong>Barre plate extrud\u00e9e<\/strong><\/td>\n<td>5\u201325 mm<\/td>\n<td>Jusqu'\u00e0 100 mm<\/td>\n<td>Section transversale constante ; longueurs jusqu'\u00e0 6 000 mm ; applications de profils OEM<\/td>\n<\/tr>\n<tr>\n<td><strong>Barre plate finition \u00e0 froid<\/strong><\/td>\n<td>2,0\u201325 mm<\/td>\n<td>20\u2013100 mm<\/td>\n<td>Tol\u00e9rance serr\u00e9e (\u00b10,05\u20130,10 mm) ; surface lisse pour l'usinage CNC de pr\u00e9cision, composants m\u00e9dicaux<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-v-md-heading=\"corrosion-resistance\" data-v-md-line=\"123\">R\u00e9sistance \u00e0 la corrosion<\/h2>\n<p data-v-md-line=\"125\">La barre plate Ti-6Al-4V maintient des taux de corrosion quasi nuls dans l'eau de mer et de nombreux milieux industriels gr\u00e2ce \u00e0 la stabilit\u00e9 de son film d'oxyde passif.<\/p>\n<h3 data-v-md-heading=\"corrosion-resistance-by-media\" data-v-md-line=\"127\">r\u00e9sistance \u00e0 la corrosion par milieu<\/h3>\n<table data-v-md-line=\"129\">\n<thead>\n<tr>\n<th>Milieu corrosif<\/th>\n<th>Grade<\/th>\n<th>Notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Eau de mer<\/td>\n<td>Excellent<\/td>\n<td>Taux de corrosion \u2248 nul \u00e0 temp\u00e9rature ambiante<\/td>\n<\/tr>\n<tr>\n<td>Acide ac\u00e9tique<\/td>\n<td>Excellent<\/td>\n<td>Stable sur une large plage de concentration<\/td>\n<\/tr>\n<tr>\n<td>Brouillard salin NaCl<\/td>\n<td>Excellent<\/td>\n<td>Passive film stable<\/td>\n<\/tr>\n<tr>\n<td>Humidity \/ condensation<\/td>\n<td>Excellent<\/td>\n<td>No pitting observed<\/td>\n<\/tr>\n<tr>\n<td>Sulfuric acid (dilute, &lt;5%)<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Concentration- and temperature-dependent<\/td>\n<\/tr>\n<tr>\n<td>Sodium hydroxide (25%)<\/td>\n<td>Mod\u00e9r\u00e9<\/td>\n<td>Rate \u2248 0.046\u20130.051 mm\/yr at 65.6\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Hydrochloric acid (2%)<\/td>\n<td>Faible<\/td>\n<td>0.03 mm\/yr at 37.8\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Dry chlorine gas<\/td>\n<td>Unacceptable<\/td>\n<td>Passive film breakdown \u2014 avoid<\/td>\n<\/tr>\n<tr>\n<td>Concentrated HF<\/td>\n<td>Unacceptable<\/td>\n<td>Rapid dissolution \u2014 avoid<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-v-md-heading=\"applications\" data-v-md-line=\"141\">Applications<\/h2>\n<p data-v-md-line=\"143\">Grade 5 titanium flat bar is specified across six primary industries where the combination of high specific strength, r\u00e9sistance \u00e0 la corrosion, and bio-compatibility is required:<\/p>\n<ul data-v-md-line=\"145\">\n<li><strong>Structures a\u00e9rospatiales<\/strong>\u00a0\u2014 Airframe brackets, wing spars, fuselage frames, bulkhead fittings, fastener blanks (ASTM B348 \/ AMS 4928; Boeing BMS 7-269 available on request)<\/li>\n<li><strong>Dispositifs m\u00e9dicaux<\/strong>\u00a0\u2014 Orthopedic implant blanks, spinal instrumentation, prosthetic components (ASTM F1472; ISO 5832-3; TR\u00c8S FAIBLE TENEUR INTERSTITIELLE Grade 23 available for fatigue-critical implants)<\/li>\n<li><strong>Traitement chimique<\/strong>\u00a0\u2014 Heat exchanger baffles, reaction vessel liners, pump components where chloride resistance is required (ASTM B348)<\/li>\n<li><strong>Marine &amp; Offshore<\/strong>\u00a0\u2014 Subsea structural hardware, clamp bodies, fasteners, hulls (seawater-grade corrosion performance)<\/li>\n<li><strong>Defense &amp; Space<\/strong>\u00a0\u2014 Pressure vessel components, rocket motor casings, missile guidance housings, satellite structural elements (MIL-T-9047 \/ AMS-T-9047)<\/li>\n<li><strong>Motorsport &amp; High-Performance Engineering<\/strong>\u00a0\u2014 Suspension components, connecting rod blanks, roll cage structures where mass reduction is the primary driver<\/li>\n<\/ul>\n<h2 data-v-md-heading=\"grade-5-vs-grade-23-ti-6al-4v-eli\" data-v-md-line=\"152\">Grade 5 vs. Grade 23 (Ti-6Al-4V TR\u00c8S FAIBLE TENEUR INTERSTITIELLE)<\/h2>\n<p data-v-md-line=\"154\">Grade 5 and Grade 23 share the same nominal alloy chemistry (Ti-6Al-4V) but differ in interstitial element limits. Grade 23 (Extra Low Interstitial \u2014 TR\u00c8S FAIBLE TENEUR INTERSTITIELLE) specifies lower oxygen, nitrogen, and carbon maxima to improve fracture toughness and fatigue performance in cryogenic and medical applications.<\/p>\n<table data-v-md-line=\"156\">\n<thead>\n<tr>\n<th>Propri\u00e9t\u00e9<\/th>\n<th>Grade 5 (ASTM B348)<\/th>\n<th>Grade 23 TR\u00c8S FAIBLE TENEUR INTERSTITIELLE (ASTM F136)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Oxygen max<\/td>\n<td>0.20%<\/td>\n<td>0.13%<\/td>\n<\/tr>\n<tr>\n<td>Nitrogen max<\/td>\n<td>0.05%<\/td>\n<td>0.03%<\/td>\n<\/tr>\n<tr>\n<td>Iron max<\/td>\n<td>0.40%<\/td>\n<td>0.25%<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance \u00e0 la traction min<\/td>\n<td>895 MPa (130 ksi)<\/td>\n<td>860 MPa (125 ksi)<\/td>\n<\/tr>\n<tr>\n<td>Fracture toughness<\/td>\n<td>Standard<\/td>\n<td>Superior (lower interstitials)<\/td>\n<\/tr>\n<tr>\n<td>Primary use<\/td>\n<td>Aerospace, industrial, marine<\/td>\n<td>Medical implants, cryogenic, fracture-critical<\/td>\n<\/tr>\n<tr>\n<td>Standard<\/td>\n<td>ASTM B348 \/ AMS 4928<\/td>\n<td>ASTM F136 (surgical implants); ASTM B348 Grade 23 (bar form)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p data-v-md-line=\"166\"><em>Grade 23 TR\u00c8S FAIBLE TENEUR INTERSTITIELLE flat bar is available; specify ASTM F136 (surgical implant applications) or ASTM B348 Grade 23 (industrial bar form) at time of inquiry.<\/em><\/p>\n<h2 data-v-md-heading=\"quality-assurance-certifications\" data-v-md-line=\"168\">Quality Assurance &amp; Certifications<\/h2>\n<p data-v-md-line=\"170\">All Grade 5 titanium flat bar is tested and documented prior to shipment. Standard inspection package includes:<\/p>\n<ul data-v-md-line=\"172\">\n<li><strong>Chemical composition analysis<\/strong>\u00a0per ASTM E1456 \/ ASTM E2371 (ICP-OES), verifying compliance with ASTM B348 or AMS 4928 element limits<\/li>\n<li><strong>Mechanical properties testing<\/strong>\u00a0per ASTM E8 (tensile), ASTM E517 (elongation), confirming minimum tensile, yield, and elongation requirements<\/li>\n<li><strong>Essais par ultrasons (UT)<\/strong>\u00a0per AMS 2631 for aerospace-grade flat bar detecting internal voids, cracks, or inclusions<\/li>\n<li><strong>Dye penetrant testing (PT)<\/strong>\u00a0per ASTM E165 for surface crack detection<\/li>\n<li><strong>Contr\u00f4le dimensionnel<\/strong>\u00a0with calibrated instruments, traceable to NIST standards<\/li>\n<li><strong>EN 10204 3.1 Certificat d'essai de broyage<\/strong>\u00a0issued with every shipment; includes heat number, chemical analysis, mechanical test results, and standard compliance declaration<\/li>\n<\/ul>\n<p data-v-md-line=\"179\">Quality systems: ISO 9001:2015; AS9100 mill supply chain available on request.<\/p>\n<h2 data-v-md-heading=\"value-added-processing\" data-v-md-line=\"181\">Value-Added Processing<\/h2>\n<p data-v-md-line=\"183\">The following processing services are available prior to shipment to reduce downstream machining lead time:<\/p>\n<ul data-v-md-line=\"185\">\n<li><strong>Saw cutting \/ shearing<\/strong>\u00a0to specified length, tol\u00e9rance \u00b10.5 mm<\/li>\n<li><strong>Waterjet cutting<\/strong>\u00a0for complex profiles and heat-sensitive applications<\/li>\n<li><strong>CNC milling \/ face milling<\/strong>\u00a0to near-net thickness<\/li>\n<li><strong>Thread tapping and drilling<\/strong>\u00a0(M3\u2013M20, through-holes, countersinks)<\/li>\n<li><strong>Surface treatments:<\/strong>\u00a0pickling, mechanical polishing, anodizing, sandblasting<\/li>\n<li><strong>Ultrasonic inspection<\/strong>\u00a0on request for aerospace qualification lots<\/li>\n<\/ul>\n<h2 data-v-md-heading=\"faq\" data-v-md-line=\"192\">FAQ<\/h2>\n<h3 data-v-md-heading=\"what-standard-covers-grade-5-titanium-flat-bar\" data-v-md-line=\"194\">What standard covers Grade 5 titanium flat bar?<\/h3>\n<p data-v-md-line=\"196\">Grade 5 titanium flat bar conforms to\u00a0<strong>ASTM B348<\/strong>, which covers titanium and titanium alloy bars and billets. AMS 4928 specifies additional requirements for the annealed condition and is the primary aerospace procurement standard. ASTM B265 covers strip, sheet, and plate \u2014 not bar products. Specifying ASTM B348 or AMS 4928 ensures the correct chemical composition limits and mechanical property requirements are applied to flat bar.<\/p>\n<h3 data-v-md-heading=\"what-is-the-tensile-strength-of-grade-5-ti-6al-4v-titanium-flat-bar\" data-v-md-line=\"198\">What is the r\u00e9sistance \u00e0 la traction of Grade 5 (Ti-6Al-4V) titanium flat bar?<\/h3>\n<p data-v-md-line=\"200\">In the annealed condition per AMS 4928, Grade 5 titanium flat bar achieves a minimum r\u00e9sistance \u00e0 la traction of\u00a0<strong>135 ksi (931 MPa)<\/strong>\u00a0for sections \u2264 2\u2033 thick, and\u00a0<strong>130 ksi (896 MPa)<\/strong>\u00a0for sections 2\u20136\u2033 thick. Solution-treated and aged (STA) flat bar per AMS 4965\/4967 reaches typical tensile strengths of\u00a0<strong>140\u2013170 ksi (965\u20131 172 MPa)<\/strong>, depending on section size and heat treatment cycle.<\/p>\n<h3 data-v-md-heading=\"what-is-the-difference-between-grade-5-and-grade-23-titanium\" data-v-md-line=\"202\">What is the difference between Grade 5 and Grade 23 titanium?<\/h3>\n<p data-v-md-line=\"204\">Grade 5 (Ti-6Al-4V, ASTM B348) and Grade 23 (Ti-6Al-4V TR\u00c8S FAIBLE TENEUR INTERSTITIELLE, ASTM F136) share the same base alloy composition but differ in interstitial limits. Grade 23 specifies lower oxygen (0.13% max vs 0.20%), lower nitrogen (0.03% vs 0.05%), and lower iron (0.25% vs 0.40%). These tighter limits improve fracture toughness and fatigue life, making Grade 23 the standard choice for medical implants and cryogenic structures. Grade 5 is preferred for aerospace, industrial, and marine applications where maximum strength at lower cost is the priority.<\/p>\n<h3 data-v-md-heading=\"can-ti-6al-4v-flat-bar-be-welded\" data-v-md-line=\"206\">Can Ti-6Al-4V flat bar be welded?<\/h3>\n<p data-v-md-line=\"208\">Ti-6Al-4V flat bar is weldable by gas tungsten arc welding (GTAW \/ TIG) and electron beam welding when inert-gas shielding (argon or helium) is maintained. Atmospheric contamination above 260\u00b0C (500\u00b0F) causes embrittlement; full inert-gas back-purging is required. Post-weld stress relief at 538\u2013649\u00b0C (1,000\u20131,200\u00b0F) for 1\u20134 hours, air cool, is recommended. Chlorinated cutting fluids and cleaning agents must be avoided prior to and during welding.<\/p>\n<h3 data-v-md-heading=\"what-does-sta-condition-mean-for-titanium-flat-bar\" data-v-md-line=\"210\">What does STA condition mean for titanium flat bar?<\/h3>\n<p data-v-md-line=\"212\">STA stands for\u00a0<strong>Solution Treated and Aged<\/strong>, a two-step heat treatment process. The material is first solution-treated above the beta transus temperature, then aged at a lower temperature to precipitate strengthening phases. For Ti-6Al-4V flat bar, STA per AMS 4965 or AMS 4967 produces typical tensile strengths of 140\u2013170 ksi compared to 130\u2013135 ksi in the annealed condition, with a modest reduction in ductilit\u00e9. STA material is used where maximum strength is the design driver, such as aerospace fasteners and structural forgings.<\/p>\n<h3 data-v-md-heading=\"what-is-the-density-and-strength-to-weight-ratio-of-grade-5-titanium\" data-v-md-line=\"214\">What is the density and strength-to-weight ratio of Grade 5 titanium?<\/h3>\n<p data-v-md-line=\"216\">Grade 5 titanium has a density of\u00a0<strong>4,43 g\/cm\u00b3 (0,160 lb\/in\u00b3)<\/strong>, approximately 56% of the density of steel (7.85 g\/cm\u00b3) \u2014 roughly 45% lighter than structural steel \u2014 and 60% of nickel alloys. With a minimum r\u00e9sistance \u00e0 la traction of 895 MPa (annealed), Ti-6Al-4V delivers a specific strength (strength-to-density ratio) of approximately\u00a0<strong>202 kN\u00b7m\/kg<\/strong>, more than three times that of structural carbon steel (A36) and roughly comparable to high-strength aluminum alloys at significantly higher service temperature capability.<\/p>\n<h3 data-v-md-heading=\"what-industries-specify-grade-5-titanium-flat-bar\" data-v-md-line=\"218\">What industries specify Grade 5 titanium flat bar?<\/h3>\n<p data-v-md-line=\"220\">Grade 5 titanium flat bar is specified in aerospace (airframe structures, engine components), medical device manufacturing (implant blanks, spinal hardware), chemical processing (corrosion-resistant hardware), marine and offshore engineering (subsea structural components), defense and space (pressure vessels, rocket structures), and high-performance motorsport (lightweight structural members). The alloy accounts for approximately 50% of total global titanium consumption due to its combination of strength, low density, and r\u00e9sistance \u00e0 la corrosion.<\/p>\n<h3 data-v-md-heading=\"what-certifications-and-documentation-come-with-each-order\" data-v-md-line=\"222\">What certifications and documentation come with each order?<\/h3>\n<p data-v-md-line=\"224\">Every shipment of Grade 5 titanium flat bar includes an\u00a0<strong>EN 10204 3.1 Certificat d'essai de broyage<\/strong>\u00a0with chemical composition results, mechanical test data, heat number, and standard compliance declaration (ASTM B348 or AMS 4928 as specified). Ultrasonic test reports, dye penetrant records, and dimensional inspection reports are available on request. Material is traceable from ingot heat to finished product.<\/p>","protected":false},"excerpt":{"rendered":"<p data-v-md-line=\"1\">Grade 5 barre plate en titane (Ti-6Al-4V \/ UNS R56400) selon ASTM B348 et AMS 4928, fournie en \u00e9tat de recuit avec certificat de contr\u00f4le d'usine EN 10204 3.1 en standard. \u00c9tat STA (AMS 4965 \/ AMS 4967) disponible sur demande.<\/p>\n<ul data-v-md-line=\"3\">\n<li><strong>Mat\u00e9riau :<\/strong>\u00a0Ti-6Al-4V (Grade 5), UNS R56400 \/ DIN 3.7165 \/ TC4<\/li>\n<li><strong>Normes :<\/strong>\u00a0ASTM B348 \/ AMS 4928 ; ASTM F1472 (m\u00e9dical) ; ISO 5832-3 disponible<\/li>\n<li><strong>\u00c9paisseur :<\/strong>\u00a03\u201380 mm |\u00a0<strong>Largeur :<\/strong>\u00a020\u2013200 mm |\u00a0<strong>Longueur :<\/strong>\u00a0jusqu'\u00e0 6 000 mm<\/li>\n<li><strong>\u00c9tat :<\/strong>\u00a0Recuit (standard) ; STA 140\u2013170 ksi sur demande<\/li>\n<li><strong>Tol\u00e9rance :<\/strong>\u00a0ASTM B348 Tableau 10 (laminage \u00e0 chaud) ; finition \u00e0 froid \u00b10,05 mm disponible<\/li>\n<li><strong>MTC :<\/strong>\u00a0EN 10204 3.1 inclus | Contr\u00f4le UT \/ PT disponible<\/li>\n<\/ul>\n<p data-v-md-line=\"10\">Contactez-nous pour obtenir un devis et conna\u00eetre les d\u00e9lais de livraison actuels.<\/p>","protected":false},"featured_media":4502,"template":"","meta":[],"product_brand":[],"product_cat":[15,38],"product_tag":[],"class_list":["post-4458","product","type-product","status-publish","has-post-thumbnail","product_cat-titanium-mill-products","product_cat-titanium-bars","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product\/4458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product\/4458\/revisions"}],"predecessor-version":[{"id":4459,"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product\/4458\/revisions\/4459"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/media\/4502"}],"wp:attachment":[{"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/media?parent=4458"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product_brand?post=4458"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product_cat?post=4458"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hontitan.com\/fr\/wp-json\/wp\/v2\/product_tag?post=4458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}