{"id":8067,"date":"2025-02-23T15:06:44","date_gmt":"2025-02-23T15:06:44","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=8067"},"modified":"2026-07-08T15:01:15","modified_gmt":"2026-07-08T15:01:15","slug":"alliage-daluminium-7055","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/fr\/produit\/alliage-daluminium-7055\/","title":{"rendered":"Alliage d'aluminium 7055"},"content":{"rendered":"

What Is 7055 Aluminum?<\/h2>\n

7055 aluminum is one of the highest-strength 7xxx series alloys, with very high zinc plus copper, magnesium, and zirconium. It was developed to exceed 7050 and 7075 in compression strength and fatigue performance, especially in thick sections, and is used for the most demanding aerospace structures. The T7751 temper provides an excellent balance of strength and corrosion resistance. Linsy supplies 7055 in plate, tube, bar, and wire with mill test certificates on every order. Composition values below follow the AA standard and should be confirmed against the mill certificate.<\/p>\n

Available 7055 Aluminum Products<\/h2>\n

Assiette<\/h3>\n

\u00c9tats disponibles :<\/strong> F, O, T6, T651, T7451, H112<\/p>\n\n\n\n
Temp\u00e9rer<\/th>\n\u00c9paisseur (mm)<\/th>\nLargeur (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n
F, O, T6, T651, T7451, H112<\/td>\n0.5 \u2013 200<\/td>\n500 \u2013 2600<\/td>\n500 \u2013 16000 (d\u00e9coupe sur mesure)<\/td>\n<\/tr>\n<\/table>\n

Tube<\/h3>\n

\u00c9tats disponibles :<\/strong> T77, T7751<\/p>\n\n\n\n
Temp\u00e9rer<\/th>\nDiam\u00e8tre ext\u00e9rieur (mm)<\/th>\nParoi (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n
T77, T7751<\/td>\n6 \u2013 300<\/td>\n0.5 \u2013 40<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

Barre \/ Tige<\/h3>\n

\u00c9tats disponibles :<\/strong> T77, T7751<\/p>\n\n\n\n
Temp\u00e9rer<\/th>\nDiam\u00e8tre (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n
T77, T7751<\/td>\n3 \u2013 300<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

Fil<\/h3>\n

\u00c9tats disponibles :<\/strong> T77, T7751<\/p>\n\n\n\n
Diam\u00e8tre (mm)<\/th>\nPoids de la bobine<\/th>\nTol\u00e9rance<\/th>\n<\/tr>\n
0.8 \u2013 30<\/td>\n50 kg minimum<\/td>\n\u00b1 0,02 mm<\/td>\n<\/tr>\n<\/table>\n

Sp\u00e9cifications et d\u00e9signations \u00e9quivalentes<\/h2>\n

7055 aluminum (EN AW-7055, AlZn8MgCuZr) is supplied to common wrought-alloy specifications. Typical standards by form: ASTM B209 (sheet and plate), ASTM B221 (extruded tube, bar, and profiles), ASTM B211 (bar and rod), ASTM B247 (forging stock), and ASTM B313 (welded tube). Always confirm the exact specification and temper with our team for your order.<\/p>\n

Composition chimique<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00c9l\u00e9ment<\/th>\nPourcentage (%)<\/th>\n<\/tr>\n
Si<\/td>\n0,10 max<\/td>\n<\/tr>\n
Fe<\/td>\n0,15 max<\/td>\n<\/tr>\n
Cu<\/td>\n2.0 - 2.6<\/td>\n<\/tr>\n
Mn<\/td>\n0,05 max<\/td>\n<\/tr>\n
Mg<\/td>\n1.8 - 2.3<\/td>\n<\/tr>\n
Cr<\/td>\n0,04 max<\/td>\n<\/tr>\n
Zn<\/td>\n7.6 - 8.4<\/td>\n<\/tr>\n
Ti<\/td>\n0,06 max<\/td>\n<\/tr>\n
Zr<\/td>\n0.08 - 0.25<\/td>\n<\/tr>\n
Autres (chacun)<\/td>\n0.05<\/td>\n<\/tr>\n
Autres (total)<\/td>\n0.15<\/td>\n<\/tr>\n
Al<\/td>\n\u00c9quilibre<\/td>\n<\/tr>\n<\/table>\n

Propri\u00e9t\u00e9s m\u00e9caniques selon le traitement thermique<\/h2>\n\n\n\n\n
Temp\u00e9rer<\/th>\nR\u00e9sistance \u00e0 la traction (MPa)<\/th>\nLimite d'\u00e9lasticit\u00e9 (MPa)<\/th>\n\u00c9longation (%)<\/th>\nR\u00e9sistance au cisaillement (MPa)<\/th>\n<\/tr>\n
T7751<\/td>\n570 \u2013 600<\/td>\n520 \u2013 550<\/td>\n10 \u2013 12<\/td>\n150 \u2013 340<\/td>\n<\/tr>\n
T6 \/ T651<\/td>\n570 \u2013 600<\/td>\n520 \u2013 550<\/td>\n10 \u2013 12<\/td>\n150 \u2013 340<\/td>\n<\/tr>\n<\/table>\n

Values are typical for the T7751 \/ T6 tempers. Composition was corrected to AA 7055 limits (see audit report) and must be confirmed with the mill certificate.<\/p>\n

Guide de s\u00e9lection des temp\u00e9raments<\/h2>\n
    \n
  • T7751<\/strong> \u2014 Peak overaged temper; primary aerospace choice with strength plus corrosion resistance.<\/li>\n
  • T6 \/ T651<\/strong> \u2014 Peak-aged for maximum strength where corrosion is less critical.<\/li>\n
  • F \/ O<\/strong> \u2014 As-fabricated and annealed conditions for forming before heat treatment.<\/li>\n<\/ul>\n

    Caract\u00e9ristiques principales<\/h2>\n

    Highest strength among common 7xxx<\/h3>\n

    Exceeds 7050 and 7075 in compression and fatigue.<\/p>\n

    Excellent fatigue performance<\/h3>\n

    Holds up under cyclic load in thick sections.<\/p>\n

    Good stress-corrosion resistance (T7751)<\/h3>\n

    Overaging balances strength and corrosion.<\/p>\n

    Poor weldability<\/h3>\n

    Supplied as machined or formed parts.<\/p>\n

    Applications<\/h2>\n
      \n
    • Aerospace wing skins and spars<\/li>\n
    • Military airframe structures<\/li>\n
    • High-performance forgings<\/li>\n
    • Space structures<\/li>\n
    • Racing and performance components<\/li>\n<\/ul>\n

      Remarques concernant le traitement et la finition de surface<\/h2>\n

      Linsy CNC-machines and laser-cuts 7055, then anodizes or paints for corrosion protection. Welding is not recommended.<\/p>\n

      Documents relatifs \u00e0 la qualit\u00e9 et contr\u00f4le qualit\u00e9<\/h2>\n

      Linsy est un fournisseur d'aluminium bas\u00e9 \u00e0 Shenzhen avec plus de 20 ans d'exp\u00e9rience. Notre syst\u00e8me qualit\u00e9 est certifi\u00e9 ISO 9001, ISO 14001 et ISO 45001. Chaque commande est exp\u00e9di\u00e9e avec un certificat d'essai en usine (MTC). Des rapports d'essais tiers SGS sont disponibles sur demande. Le d\u00e9lai de livraison typique pour les commandes personnalis\u00e9es est de 10 \u00e0 60 jours selon l'\u00e9tat, les dimensions et la quantit\u00e9.<\/p>\n

      Why Choose Linsy for 7055 Aluminum<\/h2>\n
        \n
      • Usine \u00e0 Shenzhen avec plus de 20 ans d'exp\u00e9rience au service des acheteurs des secteurs a\u00e9rospatial, automobile et de l'ing\u00e9nierie g\u00e9n\u00e9rale<\/li>\n
      • Large gamme de formes : t\u00f4le, plaque, bobine, tube, barre, fil, profil\u00e9 et \u00e9bauche de forgeage<\/li>\n
      • Usinage CNC, d\u00e9coupe laser, soudage TIG\/MIG, anodisation \/ polissage \/ rev\u00eatement par poudre sous un m\u00eame toit<\/li>\n
      • Certificat d'essai en usine avec chaque commande ; rapports SGS sur demande<\/li>\n
      • Op\u00e9rations certifi\u00e9es ISO 9001 \/ ISO 14001 \/ ISO 45001<\/li>\n<\/ul>\n

        Ressources connexes<\/h2>\n

        For deeper reading on 7xxx selection and fabrication, see our guides on aluminum alloy selection, welding 7000-series alloys, and aircraft-grade tempers. (Internal links to be connected to published Linsy blog articles.)<\/p>\n

        7055 Aluminum FAQ<\/h2>\n

        Is 7055 stronger than 7075?<\/h3>\n

        Yes. 7055 is among the strongest commercial 7xxx alloys, with higher compression and fatigue strength, especially in thick sections.<\/p>\n

        Which temper is best for corrosion?<\/h3>\n

        T7751 offers the best balance of strength and stress-corrosion resistance.<\/p>\n

        Is 7055 weldable?<\/h3>\n

        No, it is not a welding grade; design as machined or formed parts.<\/p>\n

        What documents come with the order?<\/h3>\n

        Chaque commande est exp\u00e9di\u00e9e avec un MTC, et des rapports d'essais tiers SGS sont disponibles sur demande.<\/p>\n

        FAQ g\u00e9n\u00e9rale sur les commandes<\/h2>\n

        Quel est le d\u00e9lai de livraison habituel ?<\/h3>\n

        Les commandes d'aluminium personnalis\u00e9es sont g\u00e9n\u00e9ralement exp\u00e9di\u00e9es sous 10 \u00e0 60 jours selon l'alliage, l'\u00e9tat, les dimensions et la quantit\u00e9. Les tailles standard ou en stock peuvent \u00eatre plus rapides \u2014 demandez \u00e0 notre \u00e9quipe.<\/p>\n

        Puis-je obtenir un certificat d'essai en usine ?<\/h3>\n

        Oui. Chaque commande comprend un MTC. Des rapports d'essais tiers SGS sont disponibles sur demande.<\/p>\n

        Proposez-vous l'usinage et la finition ?<\/h3>\n

        Oui. Nous fournissons l'usinage CNC, la d\u00e9coupe laser, le soudage, l'anodisation, le polissage et le rev\u00eatement par poudre afin que les pi\u00e8ces puissent \u00eatre livr\u00e9es plus proches de leur forme finie.<\/p>\n

        Comment demander un devis ?<\/h3>\n

        Envoyez votre alliage, \u00e9tat, dimensions, quantit\u00e9 et norme requise. Notre \u00e9quipe confirmera la disponibilit\u00e9, le d\u00e9lai de livraison et le prix.<\/p>","protected":false},"excerpt":{"rendered":"

        7055 aluminum is one of the highest-strength 7xxx series alloys, with very high zinc plus copper, magnesium, and zirconium. It was developed to exceed 7050 and 7075 in compression strength and fatigue performance, especially in thick sections, and is used for the most demanding aerospace structures. The T7751 temper provides an excellent balance of strength and corrosion resistance. Linsy supplies 7055 in plate, tube, bar, and wire with mill test certificates on every order. Composition values below follow the AA standard and should be confirmed against the mill certificate.<\/p>\n

        \nFormulaires disponibles :<\/strong> plate, tube, bar \/ rod, wire
        \nTemp\u00e9raments courants :<\/strong> F, H112, O, T6, T651, T7451, T77, T7751
        \nAssistance technique :<\/strong> Usinage CNC, d\u00e9coupe laser, soudage TIG\/MIG, anodisation, polissage, rev\u00eatement par poudre
        \nDocuments relatifs \u00e0 la qualit\u00e9 :<\/strong> Rapport MTC joint \u00e0 chaque commande<\/p>","protected":false},"featured_media":8084,"template":"","meta":{"_seopress_titles_title":"7055 Aluminum Alloy \u2014 Plate, Bar & Wire | Linsy Aluminum","_seopress_titles_desc":"7055 (AlZn8MgCuZr) is one of the strongest 7xxx aerospace alloys from Linsy, with top compression and fatigue strength for thick sections.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":""},"product_brand":[],"product_cat":[90,99],"product_tag":[],"class_list":["post-8067","product","type-product","status-publish","has-post-thumbnail","product_cat-7000-series-aluminum-alloys","product_cat-most-popular-aluminum-grade","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product\/8067","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/media\/8084"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/media?parent=8067"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_brand?post=8067"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_cat?post=8067"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_tag?post=8067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}