{"id":9034,"date":"2025-08-31T13:16:33","date_gmt":"2025-08-31T13:16:33","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&#038;p=9034"},"modified":"2026-07-07T08:32:43","modified_gmt":"2026-07-07T08:32:43","slug":"barre-plate-en-aluminium-2024","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/fr\/produit\/barre-plate-en-aluminium-2024\/","title":{"rendered":"2024-O\/T3\/T4\/T351\/T851 Barre plate en aluminium"},"content":{"rendered":"<h2>What Is 2024 Aluminum Flat Bar?<\/h2>\n<p>2024 aluminum flat bar is a rectangular cross-section bar made from 2024 aluminum alloy, a heat-treatable Al-Cu-Mg alloy. The flat bar form factor is particularly suited for structural brackets, supports, guide rails, and machined components where a rectangular profile is required. 2024 alloy provides one of the highest strength-to-weight ratios among aluminum alloys, making it a preferred material in aerospace and high-performance engineering applications.<\/p>\n<p>Flat bars are typically supplied in T3 and T351 tempers for maximum strength, or in O temper for applications requiring subsequent forming. The T851 temper is used for components requiring elevated temperature stability.<\/p>\n<h2>Available 2024 Aluminum Flat Bar Products<\/h2>\n<h3>Standard Flat Bar Sizes<\/h3>\n<table>\n<tr>\n<th>Alliage<\/th>\n<th>Temp\u00e9rer<\/th>\n<th>Largeur (mm)<\/th>\n<th>\u00c9paisseur (mm)<\/th>\n<th>Longueur (mm)<\/th>\n<\/tr>\n<tr>\n<td>2024 Flat Bar<\/td>\n<td>O, T3, T4, T351, T851<\/td>\n<td>10-300<\/td>\n<td>3-80<\/td>\n<td>1000-6000<\/td>\n<\/tr>\n<tr>\n<td colspan=\"5\">Dimensions personnalis\u00e9es disponibles sur demande<\/td>\n<\/tr>\n<\/table>\n<h3>Common Size Combinations<\/h3>\n<table>\n<tr>\n<th>Largeur (mm)<\/th>\n<th>\u00c9paisseur (mm)<\/th>\n<th>Application type<\/th>\n<\/tr>\n<tr>\n<td>25<\/td>\n<td>5<\/td>\n<td>Structural brackets, supports<\/td>\n<\/tr>\n<tr>\n<td>40<\/td>\n<td>8<\/td>\n<td>Machine parts, guide rails<\/td>\n<\/tr>\n<tr>\n<td>50<\/td>\n<td>10<\/td>\n<td>Fittings, mounting plates<\/td>\n<\/tr>\n<tr>\n<td>75<\/td>\n<td>15<\/td>\n<td>High-stress structural components<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>20<\/td>\n<td>Aerospace structural parts<\/td>\n<\/tr>\n<tr>\n<td>150<\/td>\n<td>30<\/td>\n<td>Heavy-duty brackets, tooling<\/td>\n<\/tr>\n<\/table>\n<h2>Sp\u00e9cifications et d\u00e9signations \u00e9quivalentes<\/h2>\n<table>\n<tr>\n<th>Standard<\/th>\n<th>D\u00e9signation<\/th>\n<\/tr>\n<tr>\n<td>AA (\u00c9tats-Unis)<\/td>\n<td>2024<\/td>\n<\/tr>\n<tr>\n<td>EN (Europe)<\/td>\n<td>EN AW-2024<\/td>\n<\/tr>\n<tr>\n<td>DIN (Allemagne)<\/td>\n<td>3.1355 \/ AlCu4Mg1<\/td>\n<\/tr>\n<tr>\n<td>ISO<\/td>\n<td>AlCu4Mg1<\/td>\n<\/tr>\n<tr>\n<td>UNS<\/td>\n<td>A92024<\/td>\n<\/tr>\n<tr>\n<td>GB (Chine)<\/td>\n<td>2A12<\/td>\n<\/tr>\n<tr>\n<td>JIS (Japon)<\/td>\n<td>A2024<\/td>\n<\/tr>\n<\/table>\n<h2>Composition chimique<\/h2>\n<table>\n<tr>\n<th>\u00c9l\u00e9ment<\/th>\n<th>Contenu (%)<\/th>\n<\/tr>\n<tr>\n<td>Si<\/td>\n<td>0,50 max<\/td>\n<\/tr>\n<tr>\n<td>Fe<\/td>\n<td>0,50 max<\/td>\n<\/tr>\n<tr>\n<td>Cu<\/td>\n<td>3.8-4.9<\/td>\n<\/tr>\n<tr>\n<td>Mn<\/td>\n<td>0.30-0.90<\/td>\n<\/tr>\n<tr>\n<td>Mg<\/td>\n<td>1.2-1.8<\/td>\n<\/tr>\n<tr>\n<td>Cr<\/td>\n<td>0,10 max<\/td>\n<\/tr>\n<tr>\n<td>Zn<\/td>\n<td>0,25 max<\/td>\n<\/tr>\n<tr>\n<td>Ti<\/td>\n<td>0,15 max<\/td>\n<\/tr>\n<tr>\n<td>Autres (chacun)<\/td>\n<td>0,05 max<\/td>\n<\/tr>\n<tr>\n<td>Autres (total)<\/td>\n<td>0,15 max<\/td>\n<\/tr>\n<tr>\n<td>Al<\/td>\n<td>\u00c9quilibre<\/td>\n<\/tr>\n<\/table>\n<h2>Propri\u00e9t\u00e9s m\u00e9caniques selon le traitement thermique<\/h2>\n<table>\n<tr>\n<th>Propri\u00e9t\u00e9<\/th>\n<th>2024-O<\/th>\n<th>2024-T3<\/th>\n<th>2024-T351<\/th>\n<th>2024-T851<\/th>\n<\/tr>\n<tr>\n<td>R\u00e9sistance \u00e0 la traction, ultime (MPa)<\/td>\n<td>186<\/td>\n<td>483<\/td>\n<td>462<\/td>\n<td>517<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance \u00e0 la traction, limite d'\u00e9lasticit\u00e9 (MPa)<\/td>\n<td>76<\/td>\n<td>345<\/td>\n<td>324<\/td>\n<td>455<\/td>\n<\/tr>\n<tr>\n<td>R\u00e9sistance au cisaillement (MPa)<\/td>\n<td>124<\/td>\n<td>283<\/td>\n<td>262<\/td>\n<td>276<\/td>\n<\/tr>\n<tr>\n<td>Allongement \u00e0 la rupture (%)<\/td>\n<td>20<\/td>\n<td>18<\/td>\n<td>17<\/td>\n<td>7<\/td>\n<\/tr>\n<tr>\n<td>Duret\u00e9 (Brinell)<\/td>\n<td>47<\/td>\n<td>120<\/td>\n<td>120<\/td>\n<td>137<\/td>\n<\/tr>\n<\/table>\n<h2>Guide de s\u00e9lection des temp\u00e9raments<\/h2>\n<table>\n<tr>\n<th>Temp\u00e9rer<\/th>\n<th>Caract\u00e9ristiques<\/th>\n<th>Typical Use for Flat Bar<\/th>\n<\/tr>\n<tr>\n<td>O<\/td>\n<td>Recuit, formabilit\u00e9 maximale, r\u00e9sistance minimale<\/td>\n<td>Forming, bending, subsequent machining before heat treatment<\/td>\n<\/tr>\n<tr>\n<td>T3<\/td>\n<td>Solution heat-treated, cold worked, naturally aged. Highest strength<\/td>\n<td>Aerospace brackets, structural supports, fittings<\/td>\n<\/tr>\n<tr>\n<td>T4<\/td>\n<td>Traitement thermique en solution, vieillissement naturel (sans d\u00e9formation \u00e0 froid)<\/td>\n<td>Components requiring moderate forming after heat treatment<\/td>\n<\/tr>\n<tr>\n<td>T351<\/td>\n<td>Traitement thermique en solution, d\u00e9tensionnement par \u00e9tirement, vieillissement naturel<\/td>\n<td>Machined aerospace parts, precision components<\/td>\n<\/tr>\n<tr>\n<td>T851<\/td>\n<td>Traitement thermique en solution, d\u00e9tente, vieillissement artificiel<\/td>\n<td>High-temperature structural applications<\/td>\n<\/tr>\n<\/table>\n<h2>Caract\u00e9ristiques principales<\/h2>\n<h3>Rapport r\u00e9sistance\/poids \u00e9lev\u00e9<\/h3>\n<p>2024 flat bar delivers exceptional strength in T3 and T351 tempers, with ultimate tensile strength up to 483 MPa. This makes it suitable for load-bearing structural components where weight reduction is critical.<\/p>\n<h3>Usinabilit\u00e9<\/h3>\n<p>2024 flat bar machines very well in T3 and T351 conditions. The rectangular profile provides stable work-holding for CNC milling, drilling, and surface machining operations, producing excellent surface finish and dimensional accuracy.<\/p>\n<h3>R\u00e9sistance \u00e0 la fatigue<\/h3>\n<p>The alloy exhibits excellent fatigue resistance, particularly in T3 temper. This is essential for flat bar components subject to cyclic loading in aerospace and mechanical applications.<\/p>\n<h3>R\u00e9sistance \u00e0 la corrosion<\/h3>\n<p>2024 has lower corrosion resistance compared to 6xxx and 7xxx series alloys. For corrosive environments, anodizing or protective coating is recommended. In aerospace applications, Alclad protection or chromate conversion coating is commonly applied.<\/p>\n<h2>Applications<\/h2>\n<ul>\n<li>Aircraft structural brackets and supports<\/li>\n<li>Aerospace fittings and hardware<\/li>\n<li>Machine parts and guide rails<\/li>\n<li>High-stress mounting plates<\/li>\n<li>Precision-machined components<\/li>\n<li>Military equipment components<\/li>\n<li>Automotive performance parts<\/li>\n<li>Tooling and fixture plates<\/li>\n<\/ul>\n<h2>Remarques concernant le traitement et la finition de surface<\/h2>\n<p>2024 aluminum flat bar can be further processed to meet specific requirements:<\/p>\n<ul>\n<li><strong>Usinage CNC<\/strong> \u2014 milling, drilling, tapping, contour machining<\/li>\n<li><strong>D\u00e9coupage<\/strong> \u2014 band saw, circular saw, or waterjet cutting to custom lengths<\/li>\n<li><strong>Finition des surfaces<\/strong> \u2014 mill finish, anodizing, polishing, powder coating<\/li>\n<li><strong>Traitement thermique<\/strong> \u2014 solution heat treatment and aging available for O-temper stock<\/li>\n<\/ul>\n<p>For forming and bending operations, O temper flat bar is recommended. After forming, the material can be solution heat-treated and aged to achieve T3 or T4 properties.<\/p>\n<h2>Documents relatifs \u00e0 la qualit\u00e9 et contr\u00f4le qualit\u00e9<\/h2>\n<p>Every 2024 aluminum flat bar order from Linsy Aluminum is accompanied by a Mill Test Certificate (MTC) documenting chemical composition, mechanical properties, and dimensional verification. SGS test reports are available on request for independent third-party verification.<\/p>\n<p>Linsy Aluminum operates under ISO 9001 (quality management), ISO 14001 (environmental management), and ISO 45001 (occupational health and safety) certifications. Dimensional inspection, straightness verification, and surface defect examination are performed on all flat bar products.<\/p>\n<h2>Why Choose Linsy for 2024 Aluminum Flat Bar<\/h2>\n<p>Linsy Aluminum is a Shenzhen-based aluminum supplier with over 20 years of experience. We supply 2024 aluminum flat bar in standard and custom dimensions, with full traceability from ingot to finished product.<\/p>\n<p>Our capabilities include CNC machining, cutting, and surface finishing. Typical custom lead time is 10-60 days depending on dimensions, quantity, and processing requirements. We export to Europe, South Africa, Brazil, Singapore, Turkey, Japan, South Korea, and other markets.<\/p>\n<p>Contact our technical team for temper selection guidance, custom size quotations, and material certifications.<\/p>\n<h2>Ressources connexes<\/h2>\n<ul>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/maitrise-du-processus-dextrusion-de-lalliage-daluminium-2024\/\">Guide de l'expert : Ma\u00eetrise du processus d'extrusion des alliages d'aluminium 2024<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/2024-vs-7075-comparaison-complete-et-approfondie\/\">2024 VS 7075 : Comparaison compl\u00e8te et approfondie<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/le-guide-ultime-de-laluminium-2024-t3511\/\">Exploration de l'aluminium 2024 T3511<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/top-picks-2024-aluminium-round-bar-solutions\/\">Tout ce que vous devez savoir sur la barre ronde en aluminium 2024<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/guide-dexperts-sur-les-alliages-daluminium-2024-t6\/\">Guide du d\u00e9butant pour comprendre l'aluminium 2024 T6<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/le-guide-ultime-de-laluminium-2024-t351\/\">Aluminium 2024-T351 : Un guide complet<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/guide-ultime-de-laluminium-2024-t3\/\">Regards d'experts sur l'aluminium T3 2024<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/decouvrez-les-meilleures-sources-daluminium-pour-2024\/\">Facteurs \u00e0 prendre en compte lors du choix de l'aluminium 2024<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/guide-essentiel-des-proprietes-de-la-tole-daluminium-2024-o\/\">T\u00f4le d'aluminium 2024-O : Propri\u00e9t\u00e9s et applications<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/fr\/proprietes-de-laluminium-2024-t4\/\">Exploration des propri\u00e9t\u00e9s de l'aluminium 2024 T4<\/a><\/li>\n<\/ul>\n<h2>2024 Aluminum Flat Bar FAQ<\/h2>\n<p><strong>What sizes are available for 2024 aluminum flat bar?<\/strong><br \/>\nStandard widths range from 10 to 300 mm, thicknesses from 3 to 80 mm, and lengths from 1000 to 6000 mm. Custom dimensions are available on request.<\/p>\n<p><strong>What is the difference between flat bar and rectangular bar?<\/strong><br \/>\nFlat bar and rectangular bar refer to the same product form: a bar with a rectangular cross-section where the width is significantly greater than the thickness.<\/p>\n<p><strong>Can 2024 flat bar be bent or formed?<\/strong><br \/>\nIn the O (annealed) temper, 2024 flat bar can be bent and formed. After forming, it can be solution heat-treated and aged to achieve T3 or T4 properties. Forming in T3 or T351 tempers is not recommended due to cracking risk.<\/p>\n<p><strong>Is 2024 flat bar weldable?<\/strong><br \/>\nConventional arc welding is not recommended for 2024 due to solidification cracking. Mechanical fastening (riveting, bolting) is the standard joining method.<\/p>\n<p><strong>What is the surface finish of as-supplied flat bar?<\/strong><br \/>\nStandard supply condition is mill finish. Anodizing, polishing, and other surface treatments are available on request.<\/p>\n<h2>FAQ g\u00e9n\u00e9rale sur les commandes<\/h2>\n<p><strong>Quelle est la quantit\u00e9 minimale de commande ?<\/strong><br \/>\nMOQ varies by size and temper. Contact our sales team for specific requirements.<\/p>\n<p><strong>Quel est le d\u00e9lai de livraison habituel ?<\/strong><br \/>\nCustom orders typically ship in 10-60 days depending on dimensions, quantity, and processing.<\/p>\n<p><strong>Quelles sont les certifications propos\u00e9es ?<\/strong><br \/>\nLinsy Aluminum est certifi\u00e9e ISO 9001, ISO 14001 et ISO 45001. Chaque commande est accompagn\u00e9e de rapports MTC. Les rapports d'essais SGS sont disponibles sur demande.<\/p>\n<p><strong>Do you provide cutting to size?<\/strong><br \/>\nYes, we offer cutting to custom lengths as well as CNC machining services.<\/p>\n<p><strong>Exportez-vous \u00e0 l'international ?<\/strong><br \/>\nOui, nous exportons vers l'Europe, l'Afrique du Sud, le Br\u00e9sil, Singapour, la Turquie, le Japon, la Cor\u00e9e du Sud et d'autres march\u00e9s.<\/p>","protected":false},"excerpt":{"rendered":"<p>2024 aluminum flat bar is a high-strength Al-Cu-Mg alloy bar supplied in rectangular cross-section. Known for excellent fatigue resistance and machinability, it is widely used in aerospace structural components, fittings, and precision-machined parts. Linsy Aluminum offers 2024 flat bar in O, T3, T4, T351, and T851 tempers with full mill test certificates.<\/p>\n<p>\n<strong>Formulaires disponibles :<\/strong> flat bar (rectangular cross-section)<br \/>\n<strong>Temp\u00e9raments courants :<\/strong> O \/ T3 \/ T4 \/ T351 \/ T851<br \/>\n<strong>Assistance technique :<\/strong> CNC machining \/ milling \/ cutting \/ anodizing<br \/>\n<strong>Documents relatifs \u00e0 la qualit\u00e9 :<\/strong> Rapport MTC joint \u00e0 chaque commande<\/p>","protected":false},"featured_media":9084,"template":"","meta":{"_seopress_titles_title":"2024 Aluminum Flat Bar Supplier | O, T3, T4, T351 Tempers | Linsy","_seopress_titles_desc":"Supplier of 2024 aluminum flat bar in O, T3, T4, T351, T851 tempers. High-strength Al-Cu alloy for aerospace. Custom sizes. MTC with every order. 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