{"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":"stop-aluminium-7021","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/pl\/produkt\/stop-aluminium-7021\/","title":{"rendered":"Stop aluminium 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

Sheet \/ Plate<\/h3>\n

Dost\u0119pne tempry:<\/strong> T6, T651<\/p>\n\n\n\n
Temperament<\/th>\nGrubo\u015b\u0107 (mm)<\/th>\nSzeroko\u015b\u0107 (mm)<\/th>\nD\u0142ugo\u015b\u0107 (mm)<\/th>\n<\/tr>\n
T6, T651<\/td>\n0.5 \u2013 150<\/td>\n500 \u2013 2600<\/td>\n500 \u2013 16000 (ci\u0119cie na wymiar)<\/td>\n<\/tr>\n<\/table>\n

Rura<\/h3>\n

Dost\u0119pne tempry:<\/strong> T6, T651<\/p>\n\n\n\n
Temperament<\/th>\n\u015arednica zewn\u0119trzna (mm)<\/th>\nGrubo\u015b\u0107 \u015bcianki (mm)<\/th>\nD\u0142ugo\u015b\u0107 (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

Pr\u0119t \/ Pr\u0119t okr\u0105g\u0142y<\/h3>\n

Dost\u0119pne tempry:<\/strong> T6, T651<\/p>\n\n\n\n
Temperament<\/th>\n\u015arednica (mm)<\/th>\nD\u0142ugo\u015b\u0107 (mm)<\/th>\n<\/tr>\n
T6, T651<\/td>\n3 \u2013 300<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

Drut<\/h3>\n

Dost\u0119pne tempry:<\/strong> T6, T651<\/p>\n\n\n\n
\u015arednica (mm)<\/th>\nCoil weight<\/th>\nTolerance<\/th>\n<\/tr>\n
0.8 \u2013 30<\/td>\nCo najmniej 50 kg<\/td>\n\u00b1 0,02 mm<\/td>\n<\/tr>\n<\/table>\n

Dane techniczne i odpowiedniki oznacze\u0144<\/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

Sk\u0142ad chemiczny<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Element<\/th>\nProcent (%)<\/th>\n<\/tr>\n
Si<\/td>\nmaks. 0,40<\/td>\n<\/tr>\n
Fe<\/td>\n0,50 maks.<\/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 maks<\/td>\n<\/tr>\n
Zr<\/td>\n0,10 maks<\/td>\n<\/tr>\n
Inni (ka\u017cdy)<\/td>\n0.05<\/td>\n<\/tr>\n
Inne (\u0142\u0105cznie)<\/td>\n0.15<\/td>\n<\/tr>\n
Al<\/td>\nR\u00f3wnowaga<\/td>\n<\/tr>\n<\/table>\n

W\u0142a\u015bciwo\u015bci mechaniczne w zale\u017cno\u015bci od stanu utwardzenia<\/h2>\n\n\n\n\n
Temperament<\/th>\nWytrzyma\u0142o\u015b\u0107 na rozci\u0105ganie (MPa)<\/th>\nGranica plastyczno\u015bci (MPa)<\/th>\nWyd\u0142u\u017cenie (%)<\/th>\nWytrzyma\u0142o\u015b\u0107 na \u015bcinanie (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

Przewodnik po doborze hartowania<\/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

    Kluczowe cechy charakterystyczne<\/h2>\n

    High strength with weldability<\/h3>\n

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

    Dobra wytrzyma\u0142o\u015b\u0107<\/h3>\n

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

    Reasonable corrosion resistance<\/h3>\n

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

    Mo\u017cliwo\u015b\u0107 obr\u00f3bki cieplnej<\/h3>\n

    Wydzieleniowe utwardzanie zapewnia okre\u015blon\u0105 wytrzyma\u0142o\u015b\u0107.<\/p>\n

    Zastosowania<\/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

      Uwagi dotycz\u0105ce obr\u00f3bki i wyko\u0144czenia powierzchni<\/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

      Dokumentacja jako\u015bci i kontrola jako\u015bci<\/h2>\n

      Linsy to dostawca aluminium z siedzib\u0105 w Shenzhen, posiadaj\u0105cy ponad 20-letnie do\u015bwiadczenie. Nasz system jako\u015bci jest certyfikowany zgodnie z normami ISO 9001, ISO 14001 i ISO 45001. Ka\u017cde zam\u00f3wienie jest wysy\u0142ane ze \u015bwiadectwem kontroli hutniczej (MTC). Raporty z bada\u0144 stron trzecich SGS s\u0105 dost\u0119pne na \u017c\u0105danie. Typowy czas realizacji zam\u00f3wienia niestandardowego wynosi 10\u201360 dni, w zale\u017cno\u015bci od tempera, rozmiaru i ilo\u015bci.<\/p>\n

      Why Choose Linsy for 7021 Aluminum<\/h2>\n
        \n
      • Fabryka w Shenzhen z ponad 20-letnim do\u015bwiadczeniem w obs\u0142udze klient\u00f3w z bran\u017cy lotniczej, motoryzacyjnej i og\u00f3lnej in\u017cynierii<\/li>\n
      • Szeroki zakres postaci: blacha cienka, p\u0142yta, kr\u0105g, rura, pr\u0119t, drut, profil i wsad do kucia<\/li>\n
      • Obr\u00f3bka CNC, ci\u0119cie laserowe, spawanie TIG\/MIG oraz anodowanie \/ polerowanie \/ malowanie proszkowe pod jednym dachem<\/li>\n
      • \u015awiadectwo kontroli hutniczej do ka\u017cdego zam\u00f3wienia; raporty SGS na \u017c\u0105danie<\/li>\n
      • Dzia\u0142alno\u015b\u0107 certyfikowana zgodnie z ISO 9001 \/ ISO 14001 \/ ISO 45001<\/li>\n<\/ul>\n

        Powi\u0105zane materia\u0142y<\/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\u017cde zam\u00f3wienie jest wysy\u0142ane ze \u015bwiadectwem kontroli hutniczej (MTC), a raporty z bada\u0144 stron trzecich SGS s\u0105 dost\u0119pne na \u017c\u0105danie.<\/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

        Najcz\u0119\u015bciej zadawane pytania dotycz\u0105ce zam\u00f3wie\u0144 og\u00f3lnych<\/h2>\n

        Jaki jest typowy czas realizacji zam\u00f3wienia?<\/h3>\n

        Niestandardowe zam\u00f3wienia aluminium s\u0105 zazwyczaj wysy\u0142ane w ci\u0105gu 10\u201360 dni, w zale\u017cno\u015bci od stopu, tempera, rozmiaru i ilo\u015bci. Towar z magazynu lub standardowe rozmiary mog\u0105 by\u0107 dost\u0119pne szybciej \u2014 zapytaj nasz zesp\u00f3\u0142.<\/p>\n

        Czy mog\u0119 otrzyma\u0107 \u015bwiadectwo kontroli hutniczej?<\/h3>\n

        Tak. Ka\u017cde zam\u00f3wienie zawiera MTC. Raporty z bada\u0144 stron trzecich SGS s\u0105 dost\u0119pne na \u017c\u0105danie.<\/p>\n

        Czy oferujecie obr\u00f3bk\u0119 skrawaniem i wyko\u0144czenie?<\/h3>\n

        Tak. Oferujemy obr\u00f3bk\u0119 CNC, ci\u0119cie laserowe, spawanie, anodowanie, polerowanie i malowanie proszkowe, dzi\u0119ki czemu cz\u0119\u015bci mog\u0105 by\u0107 dostarczone w formie bli\u017cszej gotowemu produktowi.<\/p>\n

        Jak poprosi\u0107 o wycen\u0119?<\/h3>\n

        Prze\u015blij sw\u00f3j stop, temper, wymiary, ilo\u015b\u0107 i wymagan\u0105 norm\u0119. Nasz zesp\u00f3\u0142 potwierdzi dost\u0119pno\u015b\u0107, czas realizacji i cen\u0119.<\/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

        \nDost\u0119pne formularze:<\/strong> sheet \/ plate, tube, bar \/ rod, wire
        \nTypowe temperamenty:<\/strong> T6, T651
        \nWsparcie w zakresie przetwarzania:<\/strong> Obr\u00f3bka CNC, ci\u0119cie laserowe, spawanie TIG\/MIG, anodowanie, polerowanie, malowanie proszkowe
        \nDokumenty dotycz\u0105ce jako\u015bci:<\/strong> Raport MTC do\u0142\u0105czany do ka\u017cdego zam\u00f3wienia<\/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\/pl\/wp-json\/wp\/v2\/product\/8064","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/media\/8081"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/media?parent=8064"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/product_brand?post=8064"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/product_cat?post=8064"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/product_tag?post=8064"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}