{"id":8064,"date":"2025-02-23T15:06:36","date_gmt":"2025-02-23T15:06:36","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=8064"},"modified":"2026-07-08T15:01:14","modified_gmt":"2026-07-08T15:01:14","slug":"slitina-hliniku-7021","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-7021\/","title":{"rendered":"Slitina hlin\u00edku 7021"},"content":{"rendered":"

What Is 7021 Aluminum?<\/h2>\n

7021 aluminum is a high-strength, weldable 7xxx series alloy primarily alloyed with zinc and magnesium, with a copper addition for strength. It is engineered for structural applications that demand high strength, good weldability, and reasonable corrosion resistance. While not as strong as 7075, 7021 offers a better balance of weldability and strength, making it a preferred choice for welded structures in transport and aerospace. Linsy supplies 7021 as sheet, tube, bar, and wire with mill test certificates on every order.<\/p>\n

Available 7021 Aluminum Products<\/h2>\n

Plech \/ Deska<\/h3>\n

Dostupn\u00e9 stavy:<\/strong> T6, T651<\/p>\n\n\n\n
Temperament<\/th>\nTlou\u0161\u0165ka (mm)<\/th>\n\u0160\u00ed\u0159ka (mm)<\/th>\nD\u00e9lka (mm)<\/th>\n<\/tr>\n
T6, T651<\/td>\n0.5 \u2013 150<\/td>\n500 \u2013 2600<\/td>\n500 \u2013 16000 (\u0159ez\u00e1n\u00ed na m\u00edru)<\/td>\n<\/tr>\n<\/table>\n

Trubka<\/h3>\n

Dostupn\u00e9 stavy:<\/strong> T6, T651<\/p>\n\n\n\n
Temperament<\/th>\nVn\u011bj\u0161\u00ed pr\u016fm\u011br (mm)<\/th>\nTlou\u0161\u0165ka st\u011bny (mm)<\/th>\nD\u00e9lka (mm)<\/th>\n<\/tr>\n
T6, T651<\/td>\n6 \u2013 300<\/td>\n0.5 \u2013 40<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

Ty\u010d \/ Prut<\/h3>\n

Dostupn\u00e9 stavy:<\/strong> T6, T651<\/p>\n\n\n\n
Temperament<\/th>\nPr\u016fm\u011br (mm)<\/th>\nD\u00e9lka (mm)<\/th>\n<\/tr>\n
T6, T651<\/td>\n3 \u2013 300<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

Dr\u00e1t<\/h3>\n

Dostupn\u00e9 stavy:<\/strong> T6, T651<\/p>\n\n\n\n
Pr\u016fm\u011br (mm)<\/th>\nHmotnost svitku<\/th>\nTolerance<\/th>\n<\/tr>\n
0.8 \u2013 30<\/td>\nMin. 50 kg<\/td>\n\u00b1 0,02 mm<\/td>\n<\/tr>\n<\/table>\n

Specifikace a ekvivalentn\u00ed ozna\u010den\u00ed<\/h2>\n

7021 aluminum (EN AW-7021, AlZn5.5Mg1.5) 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

Chemick\u00e9 slo\u017een\u00ed<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Prvek<\/th>\nProcento (%)<\/th>\n<\/tr>\n
Si<\/td>\nmax 0,40<\/td>\n<\/tr>\n
Fe<\/td>\nmax 0,50<\/td>\n<\/tr>\n
Cu<\/td>\n1.2 - 2.0<\/td>\n<\/tr>\n
Mn<\/td>\n0.10 \u2013 0.40<\/td>\n<\/tr>\n
Mg<\/td>\n1.2 - 1.8<\/td>\n<\/tr>\n
Cr<\/td>\n0.10 \u2013 0.25<\/td>\n<\/tr>\n
Zn<\/td>\n5.0 - 6.0<\/td>\n<\/tr>\n
Ti<\/td>\n0,10 max<\/td>\n<\/tr>\n
Zr<\/td>\n0,10 max<\/td>\n<\/tr>\n
Ostatn\u00ed (ka\u017ed\u00fd)<\/td>\n0.05<\/td>\n<\/tr>\n
Ostatn\u00ed (celkem)<\/td>\n0.15<\/td>\n<\/tr>\n
Al<\/td>\nBilance<\/td>\n<\/tr>\n<\/table>\n

Mechanick\u00e9 vlastnosti podle zp\u016fsobu temperov\u00e1n\u00ed<\/h2>\n\n\n\n\n
Temperament<\/th>\nPevnost v tahu (MPa)<\/th>\nMez kluzu (MPa)<\/th>\nProdlou\u017een\u00ed (%)<\/th>\nPevnost ve smyku (MPa)<\/th>\n<\/tr>\n
T6<\/td>\n470<\/td>\n420<\/td>\n10<\/td>\n150 \u2013 340<\/td>\n<\/tr>\n
T651<\/td>\n470<\/td>\n420<\/td>\n10<\/td>\n150 \u2013 340<\/td>\n<\/tr>\n<\/table>\n

Values are typical for the indicated condition. An em dash (\u2014) means the value was not available in the source data; confirm with the mill certificate. Asterisked values are estimates pending verification \u2014 see the audit report.<\/p>\n

Pr\u016fvodce v\u00fdb\u011brem tvrzenosti<\/h2>\n
    \n
  • T6<\/strong> \u2014 Solution heat-treated and artificially aged; primary structural temper.<\/li>\n
  • T651<\/strong> \u2014 Stress-relieved T6 for improved machining stability.<\/li>\n<\/ul>\n

    Kl\u00ed\u010dov\u00e9 charakteristiky<\/h2>\n

    High strength with weldability<\/h3>\n

    Stronger than 7020 while remaining weldable for fabricated structures.<\/p>\n

    Dobr\u00e1 hou\u017eevnatost<\/h3>\n

    Suitable for load-bearing welded assemblies.<\/p>\n

    Reasonable corrosion resistance<\/h3>\n

    Adequate for internal and coated external service.<\/p>\n

    Tepeln\u011b zpracovateln\u00e9<\/h3>\n

    Precipitation hardening delivers the specified strength.<\/p>\n

    Aplikace<\/h2>\n
      \n
    • Welded transport structures<\/li>\n
    • Automotive structural members<\/li>\n
    • Aerospace welded assemblies<\/li>\n
    • Crane and lifting equipment<\/li>\n
    • General high-strength fabrications<\/li>\n<\/ul>\n

      Pozn\u00e1mky ke zpracov\u00e1n\u00ed a povrchov\u00e9 \u00faprav\u011b<\/h2>\n

      Linsy laser-cuts and CNC-machines 7021, and welds it with qualified MIG\/TIG procedures. For exterior service, anodizing or painting is recommended. Post-weld heat treatment can be discussed with our engineers to recover strength.<\/p>\n

      Kvalitn\u00ed dokumentace a kontrola<\/h2>\n

      Spole\u010dnost Linsy je dodavatel hlin\u00edku se s\u00eddlem v Shenzhenu s v\u00edce ne\u017e 20 lety zku\u0161enost\u00ed. N\u00e1\u0161 syst\u00e9m kvality je certifikov\u00e1n podle ISO 9001, ISO 14001 a ISO 45001. Ka\u017ed\u00e1 objedn\u00e1vka je odesl\u00e1na s certifik\u00e1tem z v\u00e1lcovny (MTC). Zku\u0161ebn\u00ed protokoly t\u0159et\u00ed strany SGS jsou k dispozici na vy\u017e\u00e1d\u00e1n\u00ed. Typick\u00e1 dodac\u00ed lh\u016fta na zak\u00e1zku je 10\u201360 dn\u00ed v z\u00e1vislosti na stavu, rozm\u011bru a mno\u017estv\u00ed.<\/p>\n

      Why Choose Linsy for 7021 Aluminum<\/h2>\n
        \n
      • Tov\u00e1rna v Shenzhenu s v\u00edce ne\u017e 20 lety zku\u0161enost\u00ed s obsluhou z\u00e1kazn\u00edk\u016f z leteck\u00e9ho, automobilov\u00e9ho a v\u0161eobecn\u00e9ho stroj\u00edrenstv\u00ed<\/li>\n
      • \u0160irok\u00fd sortiment forem: plech, deska, svitek, trubka, ty\u010d, dr\u00e1t, profil a v\u00fdkovek<\/li>\n
      • CNC obr\u00e1b\u011bn\u00ed, laserov\u00e9 \u0159ez\u00e1n\u00ed, TIG\/MIG sva\u0159ov\u00e1n\u00ed a eloxov\u00e1n\u00ed \/ le\u0161t\u011bn\u00ed \/ pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed pod jednou st\u0159echou<\/li>\n
      • Certifik\u00e1t z v\u00e1lcovny s ka\u017edou objedn\u00e1vkou; zpr\u00e1vy SGS na vy\u017e\u00e1d\u00e1n\u00ed<\/li>\n
      • Certifikovan\u00e9 provozy ISO 9001 \/ ISO 14001 \/ ISO 45001<\/li>\n<\/ul>\n

        Souvisej\u00edc\u00ed zdroje<\/h2>\n

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

        7021 Aluminum FAQ<\/h2>\n

        Is 7021 better than 7020 for welding?<\/h3>\n

        7021 is stronger and still weldable, but 7020 generally has the edge in weldability and corrosion. Choose 7021 when you need more strength in a welded build.<\/p>\n

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

        T6 and T651 are the standard tempers. T651 reduces residual stress for machining.<\/p>\n

        Does 7021 come with certification?<\/h3>\n

        Ka\u017ed\u00e1 objedn\u00e1vka je odesl\u00e1na s MTC a zku\u0161ebn\u00ed protokoly t\u0159et\u00ed strany SGS jsou k dispozici na vy\u017e\u00e1d\u00e1n\u00ed.<\/p>\n

        How long is typical lead time?<\/h3>\n

        Custom orders typically ship in 10\u201360 days depending on temper, size, and quantity.<\/p>\n

        \u010casto kladen\u00e9 ot\u00e1zky k objedn\u00e1vk\u00e1m obecn\u011b<\/h2>\n

        Jak\u00e1 je typick\u00e1 dodac\u00ed lh\u016fta?<\/h3>\n

        Zak\u00e1zkov\u00e9 objedn\u00e1vky hlin\u00edku se obvykle odes\u00edlaj\u00ed za 10\u201360 dn\u00ed v z\u00e1vislosti na slitin\u011b, stavu, rozm\u011bru a mno\u017estv\u00ed. Skladov\u00e9 nebo standardn\u00ed rozm\u011bry mohou b\u00fdt rychlej\u0161\u00ed \u2013 zeptejte se na\u0161eho t\u00fdmu.<\/p>\n

        Mohu z\u00edskat certifik\u00e1t z v\u00e1lcovny?<\/h3>\n

        Ano. Ka\u017ed\u00e1 objedn\u00e1vka obsahuje MTC. Zku\u0161ebn\u00ed protokoly t\u0159et\u00ed strany SGS jsou k dispozici na vy\u017e\u00e1d\u00e1n\u00ed.<\/p>\n

        Nab\u00edz\u00edte obr\u00e1b\u011bn\u00ed a povrchovou \u00fapravu?<\/h3>\n

        Ano. Poskytujeme CNC obr\u00e1b\u011bn\u00ed, laserov\u00e9 \u0159ez\u00e1n\u00ed, sva\u0159ov\u00e1n\u00ed, eloxov\u00e1n\u00ed, le\u0161t\u011bn\u00ed a pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed, tak\u017ee d\u00edly mohou b\u00fdt dod\u00e1ny v bl\u00ed\u017ee k hotov\u00e9mu tvaru.<\/p>\n

        Jak mohu po\u017e\u00e1dat o nab\u00eddku?<\/h3>\n

        Za\u0161lete svou slitinu, stav, rozm\u011bry, mno\u017estv\u00ed a po\u017eadovanou normu. N\u00e1\u0161 t\u00fdm potvrd\u00ed dostupnost, dodac\u00ed lh\u016ftu a cenu.<\/p>","protected":false},"excerpt":{"rendered":"

        7021 aluminum is a high-strength, weldable 7xxx series alloy primarily alloyed with zinc and magnesium, with a copper addition for strength. It is engineered for structural applications that demand high strength, good weldability, and reasonable corrosion resistance. While not as strong as 7075, 7021 offers a better balance of weldability and strength, making it a preferred choice for welded structures in transport and aerospace. Linsy supplies 7021 as sheet, tube, bar, and wire with mill test certificates on every order.<\/p>\n

        \nDostupn\u00e9 formul\u00e1\u0159e:<\/strong> plech \/ deska, trubka, ty\u010d \/ prut, dr\u00e1t
        \nB\u011b\u017en\u00e9 typy povah:<\/strong> T6, T651
        \nPodpora zpracov\u00e1n\u00ed:<\/strong> CNC obr\u00e1b\u011bn\u00ed, laserov\u00e9 \u0159ez\u00e1n\u00ed, TIG\/MIG sva\u0159ov\u00e1n\u00ed, eloxov\u00e1n\u00ed, le\u0161t\u011bn\u00ed, pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed
        \nDokumenty t\u00fdkaj\u00edc\u00ed se kvality:<\/strong> Protokol o zkou\u0161ce z materi\u00e1lu (MTC) s ka\u017edou objedn\u00e1vkou<\/p>","protected":false},"featured_media":8081,"template":"","meta":{"_seopress_titles_title":"7021 Aluminum Alloy \u2014 Sheet, Bar & Wire | Linsy Aluminum","_seopress_titles_desc":"7021 (AlZn5.5Mg1.5) is a high-strength weldable 7xxx alloy from Linsy, balancing strength and weldability for welded structural components.","_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-8064","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\/cs\/wp-json\/wp\/v2\/product\/8064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/8081"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=8064"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/product_brand?post=8064"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/product_cat?post=8064"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/product_tag?post=8064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}