{"id":8666,"date":"2025-05-05T06:20:20","date_gmt":"2025-05-05T06:20:20","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=8666"},"modified":"2026-07-08T15:01:12","modified_gmt":"2026-07-08T15:01:12","slug":"alliage-daluminium-7020","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/fr\/produit\/alliage-daluminium-7020\/","title":{"rendered":"Alliage d'aluminium 7020"},"content":{"rendered":"

What Is 7020 Aluminum?<\/h2>\n

7020 aluminum is a medium-strength 7xxx series wrought alloy with zinc and magnesium as the main hardeners. It is valued for excellent weldability, good corrosion resistance, and strong fatigue performance, making it a common choice for welded transport and structural assemblies. Compared with 7075 it offers slightly lower peak strength but better fabrication behavior, especially in marine or humid service. Linsy supplies 7020 in sheet, plate, tube, bar, and wire with full mill certificates and a range of tempers for welding and structural use.<\/p>\n

Available 7020 Aluminum Products<\/h2>\n

T\u00f4le \/ Plaque<\/h3>\n

\u00c9tats disponibles :<\/strong> T5, T6, T651<\/p>\n\n\n\n
Temp\u00e9rer<\/th>\n\u00c9paisseur (mm)<\/th>\nLargeur (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n
T5, T6, T651<\/td>\n0.5 \u2013 150<\/td>\n500 \u2013 2600<\/td>\n500 \u2013 16000 (d\u00e9coupe sur mesure)<\/td>\n<\/tr>\n<\/table>\n

Tube<\/h3>\n

\u00c9tats disponibles :<\/strong> T5, T6, T651, O<\/p>\n\n\n\n
Temp\u00e9rer<\/th>\nDiam\u00e8tre ext\u00e9rieur (mm)<\/th>\nParoi (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n
T5, T6, T651, O<\/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> T5, T6, T651, O<\/p>\n\n\n\n
Temp\u00e9rer<\/th>\nDiam\u00e8tre (mm)<\/th>\nLongueur (mm)<\/th>\n<\/tr>\n
T5, T6, T651, O<\/td>\n3 \u2013 300<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

Fil<\/h3>\n

\u00c9tats disponibles :<\/strong> T5, T6, T651, O<\/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

7020 aluminum (EN AW-7020, AlZn4.5Mg1) 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), and ASTM B313 (welded tube). Forging stock follows ASTM B247. 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>\n0.35 max<\/td>\n<\/tr>\n
Fe<\/td>\n0,50 max<\/td>\n<\/tr>\n
Cu<\/td>\n0,20 max<\/td>\n<\/tr>\n
Mn<\/td>\n0.20 \u2013 0.60<\/td>\n<\/tr>\n
Mg<\/td>\n1.0 \u2013 1.4<\/td>\n<\/tr>\n
Cr<\/td>\n0.10 \u2013 0.35<\/td>\n<\/tr>\n
Zn<\/td>\n4.0 \u2013 5.0<\/td>\n<\/tr>\n
Ti<\/td>\n0,20 max<\/td>\n<\/tr>\n
Zr<\/td>\n0,10 max<\/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
T6<\/td>\n360 \u2013 420<\/td>\n\u2014<\/td>\n8 \u2013 12<\/td>\n~ 250<\/td>\n<\/tr>\n
T651<\/td>\n360 \u2013 420<\/td>\n\u2014<\/td>\n8 \u2013 12<\/td>\n~ 250<\/td>\n<\/tr>\n<\/table>\n

Les valeurs sont typiques pour la condition indiqu\u00e9e. Un tiret (\u2014) signifie que la valeur n'\u00e9tait pas disponible dans les donn\u00e9es source ; veuillez confirmer avec le certificat d'essai en usine. Les valeurs marqu\u00e9es d'un ast\u00e9risque sont des estimations en attente de v\u00e9rification \u2014 voir le rapport d'audit.<\/p>\n

Guide de s\u00e9lection des temp\u00e9raments<\/h2>\n
    \n
  • O<\/strong> \u2014 Annealed, softest condition for forming.<\/li>\n
  • T5<\/strong> \u2014 Cooled from hot working and artificially aged; good strength with simpler processing.<\/li>\n
  • T6<\/strong> \u2014 Solution heat-treated and artificially aged; prime structural temper.<\/li>\n
  • T651<\/strong> \u2014 Stress-relieved T6 for machining stability.<\/li>\n<\/ul>\n

    Caract\u00e9ristiques principales<\/h2>\n

    Excellente soudabilit\u00e9<\/h3>\n

    One of the more weldable 7xxx grades; widely used in welded frameworks.<\/p>\n

    Good fatigue strength<\/h3>\n

    Performs well under cyclic loading in transport structures.<\/p>\n

    Bonne r\u00e9sistance \u00e0 la corrosion<\/h3>\n

    Better than high-copper 7xxx alloys in humid and marine atmospheres.<\/p>\n

    Force moyenne<\/h3>\n

    Lower peak strength than 7075 but easier to fabricate and join.<\/p>\n

    Applications<\/h2>\n
      \n
    • Rail and transport welded structures<\/li>\n
    • Automotive chassis and frames<\/li>\n
    • Welded bridges and platforms<\/li>\n
    • Aerospace secondary structures<\/li>\n
    • General engineering fabrications<\/li>\n<\/ul>\n

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

      Linsy cuts 7020 with laser and machines it on CNC centers. It welds well with MIG\/TIG using matching or compatible fillers; post-weld aging can recover properties. Anodizing or powder coating improves surface durability.<\/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 7020 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

        Pour une lecture plus approfondie sur la s\u00e9lection et la fabrication des alliages 7xxx, consultez nos guides sur la s\u00e9lection des alliages d'aluminium et le soudage des alliages de la s\u00e9rie 7000. (Liens internes \u00e0 connecter aux articles publi\u00e9s du blog Linsy.)<\/p>\n

        7020 Aluminum FAQ<\/h2>\n

        Why choose 7020 over 7075?<\/h3>\n

        7020 trades some peak strength for much better weldability and corrosion behavior, which matters for welded transport and marine structures.<\/p>\n

        What tempers are available?<\/h3>\n

        We supply O, T5, T6, and T651 across sheet, tube, bar, and wire. Tell us the fabrication route and we will advise a temper.<\/p>\n

        Can 7020 be anodized?<\/h3>\n

        Yes. Anodizing improves corrosion and wear resistance; note that the coating color on 7xxx alloys can vary, so confirm appearance expectations with us.<\/p>\n

        Is a mill certificate included?<\/h3>\n

        Yes, every order includes an MTC, and SGS third-party reports are available on request.<\/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":"

        7020 aluminum is a medium-strength 7xxx series wrought alloy with zinc and magnesium as the main hardeners. It is valued for excellent weldability, good corrosion resistance, and strong fatigue performance, making it a common choice for welded transport and structural assemblies. Compared with 7075 it offers slightly lower peak strength but better fabrication behavior, especially in marine or humid service. Linsy supplies 7020 in sheet, plate, tube, bar, and wire with full mill certificates and a range of tempers for welding and structural use.<\/p>\n

        \nFormulaires disponibles :<\/strong> t\u00f4le \/ plaque, tube, barre \/ tige, fil
        \nTemp\u00e9raments courants :<\/strong> O, T5, T6, T651
        \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":8674,"template":"","meta":{"_seopress_titles_title":"7020 Aluminum Alloy \u2014 Sheet, Bar & Wire | Linsy Aluminum","_seopress_titles_desc":"7020 (AlZn4.5Mg1) is a weldable medium-strength 7xxx alloy from Linsy, ideal for transport and structural welded assemblies with good fatigue strength.","_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-8666","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\/8666","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\/8674"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/media?parent=8666"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_brand?post=8666"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_cat?post=8666"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/fr\/wp-json\/wp\/v2\/product_tag?post=8666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}