{"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":"7020-%e9%93%9d%e5%90%88%e9%87%91","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/zh\/%e4%ba%a7%e5%93%81\/7020-%e9%93%9d%e5%90%88%e9%87%91\/","title":{"rendered":"7020 \u94dd\u5408\u91d1"},"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

\u677f\u6750\/\u7247\u6750<\/h3>\n

\u53ef\u63d0\u4f9b\u7684\u72b6\u6001\uff1a<\/strong> T5, T6, T651<\/p>\n\n\n\n
\u813e\u6c14<\/th>\n\u539a\u5ea6\uff08\u6beb\u7c73\uff09<\/th>\n\u5bbd\u5ea6\uff08\u6beb\u7c73\uff09<\/th>\n\u957f\u5ea6\uff08\u6beb\u7c73\uff09<\/th>\n<\/tr>\n
T5, T6, T651<\/td>\n0.5 \u2013 150<\/td>\n500 \u2013 2600<\/td>\n500 \u2013 16000\uff08\u53ef\u6309\u9700\u5b9a\u5c3a\u5207\u5272\uff09<\/td>\n<\/tr>\n<\/table>\n

\u7ba1\u6750<\/h3>\n

\u53ef\u63d0\u4f9b\u7684\u72b6\u6001\uff1a<\/strong> T5, T6, T651, O<\/p>\n\n\n\n
\u813e\u6c14<\/th>\n\u5916\u5f84\uff08\u6beb\u7c73\uff09<\/th>\n\u58c1\u539a\uff08\u6beb\u7c73\uff09<\/th>\n\u957f\u5ea6\uff08\u6beb\u7c73\uff09<\/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

\u68d2\u6750\/\u5706\u68d2<\/h3>\n

\u53ef\u63d0\u4f9b\u7684\u72b6\u6001\uff1a<\/strong> T5, T6, T651, O<\/p>\n\n\n\n
\u813e\u6c14<\/th>\n\u76f4\u5f84\uff08\u6beb\u7c73\uff09<\/th>\n\u957f\u5ea6\uff08\u6beb\u7c73\uff09<\/th>\n<\/tr>\n
T5, T6, T651, O<\/td>\n3 \u2013 300<\/td>\n500 \u2013 12000<\/td>\n<\/tr>\n<\/table>\n

\u7ebf\u6750<\/h3>\n

\u53ef\u63d0\u4f9b\u7684\u72b6\u6001\uff1a<\/strong> T5, T6, T651, O<\/p>\n\n\n\n
\u76f4\u5f84\uff08\u6beb\u7c73\uff09<\/th>\n\u5377\u6750\u91cd\u91cf<\/th>\n\u5bbd\u5bb9<\/th>\n<\/tr>\n
0.8 \u2013 30<\/td>\n\u81f3\u5c11 50 \u516c\u65a4<\/td>\n\u00b1 0.02 \u6beb\u7c73<\/td>\n<\/tr>\n<\/table>\n

\u89c4\u683c\u4e0e\u7b49\u6548\u724c\u53f7<\/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

\u5316\u5b66\u6210\u5206<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u8981\u7d20<\/th>\n\u767e\u5206\u6bd4 (%)<\/th>\n<\/tr>\n
Si<\/td>\n0.35 \u6700\u5927\u503c<\/td>\n<\/tr>\n
\u94c1<\/td>\n\u6700\u5927 0.50<\/td>\n<\/tr>\n
\u94dc<\/td>\n0.20\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n
\u9530<\/td>\n0.20 \u2013 0.60<\/td>\n<\/tr>\n
\u9541<\/td>\n1.0 \u2013 1.4<\/td>\n<\/tr>\n
Cr<\/td>\n0.10 \u2013 0.35<\/td>\n<\/tr>\n
\u950c<\/td>\n4.0 \u2013 5.0<\/td>\n<\/tr>\n
Ti<\/td>\n0.20\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n
Zr<\/td>\n\u6700\u5927 0.10<\/td>\n<\/tr>\n
\u5176\u4ed6\uff08\u6bcf\u9879\uff09<\/td>\n0.05<\/td>\n<\/tr>\n
\u5176\u4ed6\uff08\u5171\u8ba1\uff09<\/td>\n0.15<\/td>\n<\/tr>\n
Al<\/td>\n\u5e73\u8861<\/td>\n<\/tr>\n<\/table>\n

\u4e0d\u540c\u56de\u706b\u72b6\u6001\u4e0b\u7684\u529b\u5b66\u6027\u80fd<\/h2>\n\n\n\n\n
\u813e\u6c14<\/th>\n\u62c9\u4f38\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/th>\n\u5c48\u670d\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/th>\n\u4f38\u957f\u7387 (%)<\/th>\n\u526a\u5207\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/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

\u6570\u503c\u4e3a\u6307\u5b9a\u6761\u4ef6\u4e0b\u7684\u5178\u578b\u503c\u3002\u957f\u7834\u6298\u53f7\uff08\u2014\uff09\u8868\u793a\u8be5\u503c\u5728\u6e90\u6570\u636e\u4e2d\u4e0d\u53ef\u7528\uff1b\u8bf7\u4e0e\u5de5\u5382\u6d4b\u8bd5\u8bc1\u4e66\u786e\u8ba4\u3002\u5e26\u661f\u53f7\u7684\u503c\u662f\u5f85\u9a8c\u8bc1\u7684\u4f30\u7b97\u503c\u2014\u2014\u8bf7\u53c2\u9605\u5ba1\u6838\u62a5\u544a\u3002.<\/p>\n

\u786c\u5ea6\u9009\u62e9\u6307\u5357<\/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

    \u4e3b\u8981\u7279\u70b9<\/h2>\n

    \u51fa\u8272\u7684\u710a\u63a5\u6027<\/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

    \u826f\u597d\u7684\u8010\u8150\u8680\u6027<\/h3>\n

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

    \u4e2d\u7b49\u5f3a\u5ea6<\/h3>\n

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

    \u5e94\u7528<\/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

      \u52a0\u5de5\u4e0e\u8868\u9762\u5904\u7406\u8bf4\u660e<\/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

      \u8d28\u91cf\u6587\u4ef6\u4e0e\u68c0\u9a8c<\/h2>\n

      Linsy \u662f\u4e00\u5bb6\u603b\u90e8\u4f4d\u4e8e\u6df1\u5733\u7684\u94dd\u6750\u4f9b\u5e94\u5546\uff0c\u62e5\u6709\u8d85\u8fc7 20 \u5e74\u7684\u7ecf\u9a8c\u3002\u6211\u4eec\u7684\u8d28\u91cf\u4f53\u7cfb\u5df2\u901a\u8fc7 ISO 9001\u3001ISO 14001 \u548c ISO 45001 \u8ba4\u8bc1\u3002\u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u5e26\u5de5\u5382\u6d4b\u8bd5\u8bc1\u4e66 (MTC)\u3002\u53ef\u6839\u636e\u8981\u6c42\u63d0\u4f9b SGS \u7b2c\u4e09\u65b9\u6d4b\u8bd5\u62a5\u544a\u3002\u5178\u578b\u7684\u5b9a\u5236\u4ea4\u8d27\u671f\u4e3a 10-60 \u5929\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u72b6\u6001\u3001\u5c3a\u5bf8\u548c\u6570\u91cf\u3002.<\/p>\n

      Why Choose Linsy for 7020 Aluminum<\/h2>\n
        \n
      • \u6df1\u5733\u5de5\u5382\uff0c\u62e5\u6709 20 \u591a\u5e74\u670d\u52a1\u822a\u7a7a\u822a\u5929\u3001\u6c7d\u8f66\u548c\u901a\u7528\u5de5\u7a0b\u91c7\u8d2d\u5546\u7684\u7ecf\u9a8c<\/li>\n
      • \u4ea7\u54c1\u5f62\u6001\u8303\u56f4\u5e7f\u6cdb\uff1a\u677f\u6750\u3001\u7247\u6750\u3001\u5377\u6750\u3001\u7ba1\u6750\u3001\u68d2\u6750\u3001\u7ebf\u6750\u3001\u578b\u6750\u548c\u953b\u4ef6\u539f\u6599<\/li>\n
      • \u5728\u540c\u4e00\u5de5\u5382\u5185\u63d0\u4f9b CNC \u52a0\u5de5\u3001\u6fc0\u5149\u5207\u5272\u3001TIG\/MIG \u710a\u63a5\u4ee5\u53ca\u9633\u6781\u6c27\u5316\/\u629b\u5149\/\u7c89\u672b\u55b7\u6d82\u670d\u52a1<\/li>\n
      • \u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u5e26\u5de5\u5382\u6d4b\u8bd5\u8bc1\u4e66\uff1b\u53ef\u6839\u636e\u8981\u6c42\u63d0\u4f9b SGS \u62a5\u544a<\/li>\n
      • \u901a\u8fc7 ISO 9001 \/ ISO 14001 \/ ISO 45001 \u8ba4\u8bc1\u7684\u8fd0\u8425<\/li>\n<\/ul>\n

        \u76f8\u5173\u8d44\u6e90<\/h2>\n

        \u5982\u9700\u66f4\u6df1\u5165\u5730\u4e86\u89e3 7xxx \u7cfb\u5217\u7684\u9009\u62e9\u548c\u5236\u9020\uff0c\u8bf7\u53c2\u9605\u6211\u4eec\u5173\u4e8e\u94dd\u5408\u91d1\u9009\u62e9\u548c 7000 \u7cfb\u5408\u91d1\u710a\u63a5\u7684\u6307\u5357\u3002\uff08\u5185\u90e8\u94fe\u63a5\u5c06\u8fde\u63a5\u5230\u5df2\u53d1\u5e03\u7684 Linsy \u535a\u5ba2\u6587\u7ae0\u3002\uff09<\/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

        \u5e38\u89c1\u8ba2\u8d2d\u95ee\u9898\u89e3\u7b54<\/h2>\n

        \u901a\u5e38\u7684\u4ea4\u8d27\u5468\u671f\u662f\u591a\u4e45\uff1f<\/h3>\n

        \u5b9a\u5236\u94dd\u6750\u8ba2\u5355\u901a\u5e38\u5728 10-60 \u5929\u5185\u53d1\u8d27\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u5408\u91d1\u3001\u72b6\u6001\u3001\u5c3a\u5bf8\u548c\u6570\u91cf\u3002\u5e93\u5b58\u6216\u6807\u51c6\u5c3a\u5bf8\u53ef\u80fd\u66f4\u5feb\u2014\u2014\u8bf7\u54a8\u8be2\u6211\u4eec\u7684\u56e2\u961f\u3002.<\/p>\n

        \u6211\u80fd\u83b7\u5f97\u5de5\u5382\u6d4b\u8bd5\u8bc1\u4e66\u5417\uff1f<\/h3>\n

        \u53ef\u4ee5\u3002\u6bcf\u7b14\u8ba2\u5355\u5747\u5305\u542b MTC\u3002\u53ef\u6839\u636e\u8981\u6c42\u63d0\u4f9b SGS \u7b2c\u4e09\u65b9\u6d4b\u8bd5\u62a5\u544a\u3002.<\/p>\n

        \u4f60\u4eec\u63d0\u4f9b\u673a\u52a0\u5de5\u548c\u8868\u9762\u5904\u7406\u670d\u52a1\u5417\uff1f<\/h3>\n

        \u662f\u7684\u3002\u6211\u4eec\u63d0\u4f9b CNC \u52a0\u5de5\u3001\u6fc0\u5149\u5207\u5272\u3001\u710a\u63a5\u3001\u9633\u6781\u6c27\u5316\u3001\u629b\u5149\u548c\u7c89\u672b\u55b7\u6d82\u670d\u52a1\uff0c\u4ee5\u4fbf\u96f6\u4ef6\u53ef\u4ee5\u4ee5\u66f4\u63a5\u8fd1\u6210\u54c1\u7684\u5f62\u5f0f\u4ea4\u4ed8\u3002.<\/p>\n

        \u5982\u4f55\u7533\u8bf7\u62a5\u4ef7\uff1f<\/h3>\n

        \u8bf7\u53d1\u9001\u60a8\u7684\u5408\u91d1\u3001\u72b6\u6001\u3001\u5c3a\u5bf8\u3001\u6570\u91cf\u548c\u6240\u9700\u6807\u51c6\u3002\u6211\u4eec\u7684\u56e2\u961f\u5c06\u786e\u8ba4\u4f9b\u8d27\u60c5\u51b5\u3001\u4ea4\u8d27\u671f\u548c\u4ef7\u683c\u3002.<\/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

        \n\u53ef\u9009\u683c\u5f0f\uff1a<\/strong> \u677f\u6750\/\u7247\u6750\u3001\u7ba1\u6750\u3001\u68d2\u6750\/\u5706\u68d2\u3001\u7ebf\u6750
        \n\u5e38\u89c1\u813e\u6c14\uff1a<\/strong> O, T5, T6, T651
        \n\u5904\u7406\u652f\u6301\uff1a<\/strong> CNC \u52a0\u5de5\u3001\u6fc0\u5149\u5207\u5272\u3001TIG\/MIG \u710a\u63a5\u3001\u9633\u6781\u6c27\u5316\u3001\u629b\u5149\u3001\u7c89\u672b\u55b7\u6d82
        \n\u8d28\u91cf\u6587\u4ef6\uff1a<\/strong> \u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u6709MTC\u62a5\u544a<\/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\/zh\/wp-json\/wp\/v2\/product\/8666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/media\/8674"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/media?parent=8666"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_brand?post=8666"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_cat?post=8666"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_tag?post=8666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}