{"id":8667,"date":"2025-05-05T06:23:03","date_gmt":"2025-05-05T06:23:03","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&p=8667"},"modified":"2026-07-08T15:01:12","modified_gmt":"2026-07-08T15:01:12","slug":"7003-%e9%93%9d%e5%90%88%e9%87%91","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/zh\/%e4%ba%a7%e5%93%81\/7003-%e9%93%9d%e5%90%88%e9%87%91\/","title":{"rendered":"7003 \u94dd\u5408\u91d1"},"content":{"rendered":"

\u4ec0\u4e48\u662f 7003 \u94dd\uff1f<\/h2>\n

7003 gains strength from zinc and magnesium with a small zirconium addition for grain control. Its weldability is one of its key selling points: welded joints keep much more strength than those in 7075, so it is favored where large assemblies are welded rather than machined. Strength sits between 6061 and 7075.<\/p>\n

Available 7003 Aluminum Products<\/h2>\n

\u677f\u6750\/\u5377\u6750<\/h3>\n\n\n\n\n\n\n\n\n
\u53c2\u6570<\/th>\n\u539a\u5ea6\u8303\u56f4<\/th>\n<\/tr>\n<\/thead>\n
\u539a\u5ea6<\/td>\n0.3 \u2013 150\u6beb\u7c73<\/td>\n<\/tr>\n
\u5bbd\u5ea6<\/td>\n500 \u2013 2600\u6beb\u7c73<\/td>\n<\/tr>\n
\u957f\u5ea6<\/td>\n500 \u2013 16000\u6beb\u7c73<\/td>\n<\/tr>\n
\u60c5\u7eea<\/td>\nT5, T6, T651<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u7ba1\u6750<\/h3>\n\n\n\n\n\n\n\n\n
\u53c2\u6570<\/th>\n\u539a\u5ea6\u8303\u56f4<\/th>\n<\/tr>\n<\/thead>\n
\u5916\u5f84<\/td>\n6 \u2013 300\u6beb\u7c73<\/td>\n<\/tr>\n
\u58c1\u539a<\/td>\n0.5 \u2013 40\u6beb\u7c73<\/td>\n<\/tr>\n
\u957f\u5ea6<\/td>\n\u6700\u957f12000\u6beb\u7c73<\/td>\n<\/tr>\n
\u60c5\u7eea<\/td>\nT5, T6, T651<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u68d2\u6750\/\u5706\u68d2<\/h3>\n\n\n\n\n\n\n\n
\u53c2\u6570<\/th>\n\u539a\u5ea6\u8303\u56f4<\/th>\n<\/tr>\n<\/thead>\n
\u76f4\u5f84<\/td>\n3 \u2013 300\u6beb\u7c73<\/td>\n<\/tr>\n
\u957f\u5ea6<\/td>\n\u6700\u957f12000\u6beb\u7c73<\/td>\n<\/tr>\n
\u60c5\u7eea<\/td>\nT5, T6, T651<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u89c4\u683c\u4e0e\u7b49\u6548\u724c\u53f7<\/h2>\n\n\n\n\n\n\n\n\n
\u540d\u79f0<\/th>\n\u53c2\u8003\u6807\u51c6<\/th>\n<\/tr>\n<\/thead>\n
AA \/ UNS<\/td>\nA97003<\/td>\n<\/tr>\n
EN AW<\/td>\nEN AW-7003 \/ AlZn6Mg0.8Zr<\/td>\n<\/tr>\n
\u5e38\u7528\u6807\u51c6<\/td>\nASTM B221, EN 755, GB\/T 3191<\/td>\n<\/tr>\n
\u7cfb\u5217<\/td>\n7000 (Al-Zn-Mg)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5316\u5b66\u6210\u5206<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u8981\u7d20<\/th>\n\u542b\u91cf\uff08\u91cd\u91cf\u767e\u5206\u6bd4\uff09<\/th>\n<\/tr>\n<\/thead>\n
\u7845 (Si)<\/td>\n0.12 \u6700\u5927\u503c<\/td>\n<\/tr>\n
\u94c1\uff08Fe\uff09<\/td>\n0.15 \u6700\u5927\u503c<\/td>\n<\/tr>\n
\u94dc (Cu)<\/td>\n0.20\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n
\u9530 (Mn)<\/td>\n\u6700\u5927 0.10<\/td>\n<\/tr>\n
\u9541\uff08Mg\uff09<\/td>\n2.20 – 2.70<\/td>\n<\/tr>\n
\u94ec (Cr)<\/td>\n0.05 – 0.20<\/td>\n<\/tr>\n
\u950c (Zn)<\/td>\n5.70 – 6.70<\/td>\n<\/tr>\n
\u9506 (Zr)<\/td>\n0.05 \u2013 0.25<\/td>\n<\/tr>\n
\u949b (Ti)<\/td>\n0.20\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n
\u5176\u4ed6\uff0c\u5404<\/td>\n0.05 \u6700\u5927\u503c<\/td>\n<\/tr>\n
\u5176\u4ed6\uff0c\u5408\u8ba1<\/td>\n0.15 \u6700\u5927\u503c<\/td>\n<\/tr>\n
\u94dd (Al)<\/td>\n\u5e73\u8861<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4e0d\u540c\u56de\u706b\u72b6\u6001\u4e0b\u7684\u529b\u5b66\u6027\u80fd<\/h2>\n\n\n\n\n\n\n\n
\u813e\u6c14<\/th>\n\u6297\u62c9\u5f3a\u5ea6 (MPa)<\/th>\n\u5c48\u670d\u5f3a\u5ea6 (MPa)<\/th>\n\u4f38\u957f\u7387 (%)<\/th>\n\u526a\u5207\u5f3a\u5ea6\uff08MPa\uff09<\/th>\n<\/tr>\n<\/thead>\n
T6<\/td>\n340 – 400<\/td>\n300 \u2013 340<\/td>\n8 \u2013 12<\/td>\n280 – 380<\/td>\n<\/tr>\n
T651<\/td>\n340 – 400<\/td>\n300 \u2013 340<\/td>\n8 \u2013 12<\/td>\n280 – 380<\/td>\n<\/tr>\n
T5<\/td>\n300 – 350<\/td>\n250 – 300<\/td>\n10 \u2013 14<\/td>\n200 – 240<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u786c\u5ea6\u9009\u62e9\u6307\u5357<\/h2>\n

T6 \/ T651<\/h3>\n

Peak strength for welded frames and structural members where maximum load capacity is needed.<\/p>\n

T5<\/h3>\n

Cooled from extrusion and artificially aged; good strength with lower cost than full T6 solution treatment.<\/p>\n

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

\u710a\u63a5\u6027<\/h3>\n

Better weld retention than 7075\/7050, ideal for welded assemblies.<\/p>\n

\u5f3a\u5ea6\u91cd\u91cf\u6bd4<\/h3>\n

Stronger than 6061 at similar weight.<\/p>\n

\u8010\u8150\u8680\u6027<\/h3>\n

Good for 7000-series; acceptable in many transport environments.<\/p>\n

\u6324\u51fa\u6027<\/h3>\n

Readily extruded into complex profiles.<\/p>\n

\u5e94\u7528<\/h2>\n
    \n
  • Rail and truck structural frames<\/li>\n
  • Bicycle, kayak, and sporting-goods structures<\/li>\n
  • Welded transport assemblies<\/li>\n
  • General structural extrusions<\/li>\n<\/ul>\n

    \u52a0\u5de5\u4e0e\u8868\u9762\u5904\u7406\u8bf4\u660e<\/h2>\n

    7003 welds well with TIG\/MIG using 5356 or 5183 filler. Note that the heat-affected zone loses some strength, so design welds accordingly. It machines and anodizes acceptably, though 7xxx anodizing can show slight color variation. Post-weld artificial aging can recover part of the strength loss.<\/p>\n

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

    \u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u5e26\u8bb0\u5f55\u5316\u5b66\u6210\u5206\u548c\u529b\u5b66\u6027\u80fd\u7684\u5de5\u5382\u8d28\u4fdd\u4e66\uff08MTC\uff09\u3002\u6211\u4eec\u7684\u8d28\u91cf\u4f53\u7cfb\u5df2\u901a\u8fc7ISO 9001\u3001ISO 14001\u548cISO 45001\u8ba4\u8bc1\u3002\u53ef\u6839\u636e\u8981\u6c42\u5b89\u6392\u7b2c\u4e09\u65b9SGS\u68c0\u6d4b\u62a5\u544a\u3002\u68c0\u9a8c\u6db5\u76d6\u5c3a\u5bf8\u3001\u8868\u9762\u72b6\u6001\u4ee5\u53ca\u6309\u72b6\u6001\u8fdb\u884c\u7684\u529b\u5b66\u6027\u80fd\u9a8c\u8bc1\u3002.<\/p>\n

    Why Choose Linsy for 7003 Aluminum<\/h2>\n

    Linsy Aluminum is a Shenzhen-based aluminum manufacturer with more than 20 years of experience supplying the 1000 to 8000 series in plate, bar, tube, wire, coil, profile, and block forms. For 7003 aluminum, we support both off-the-shelf ranges and made-to-order dimensions.<\/p>\n

      \n
    • \u8ba4\u8bc1\uff1a<\/strong> ISO 9001\u3001ISO 14001\u548cISO 45001\u7ba1\u7406\u4f53\u7cfb\u8ba4\u8bc1\u3002.<\/li>\n
    • \u6587\u4ef6\uff1a<\/strong> \u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u5e26\u5de5\u5382\u8d28\u4fdd\u4e66\uff08MTC\uff09\uff1b\u53ef\u6839\u636e\u8981\u6c42\u63d0\u4f9b\u7b2c\u4e09\u65b9SGS\u68c0\u6d4b\u62a5\u544a\u3002.<\/li>\n
    • \u52a0\u5de5\u80fd\u529b\uff1a<\/strong> \u5382\u5185CNC\u52a0\u5de5\u3001TIG\/MIG\u710a\u63a5\u3001\u6fc0\u5149\u5207\u5272\u548c\u8868\u9762\u5904\u7406\uff08\u9633\u6781\u6c27\u5316\u3001\u629b\u5149\u3001\u94e3\u9762\u3001\u7c89\u672b\u55b7\u6d82\u3001PVC\u8986\u819c\uff09\u3002.<\/li>\n
    • \u4ea4\u8d27\u5468\u671f\uff1a<\/strong> \u5178\u578b\u5b9a\u5236\u4ea4\u8d27\u5468\u671f\u4e3a10\u81f360\u5929\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u72b6\u6001\u3001\u5c3a\u5bf8\u548c\u6570\u91cf\u3002.<\/li>\n
    • \u51fa\u53e3\uff1a<\/strong> \u5df2\u51fa\u53e3\u81f3\u6b27\u6d32\u3001\u4e9a\u6d32\u3001\u4e2d\u4e1c\u3001\u975e\u6d32\u53ca\u7f8e\u6d32\u768420\u591a\u4e2a\u56fd\u5bb6\u3002.<\/li>\n<\/ul>\n

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

      See the blog articles linked below for deeper background, and contact our team for a tailored quote on 7003 aluminum.<\/p>\n

      7003 Aluminum FAQ<\/h2>\n

      How does 7003 compare to 7005?<\/h3>\n

      Both are weldable medium-strength 7xxx alloys. 7005 carries a bit more manganese and is common in marine and rail welded structures; 7003 is widely used for extrusions in transport and sporting goods. Strength overlaps.<\/p>\n

      Is 7003 better than 6061 for welded frames?<\/h3>\n

      Yes for strength: 7003 is stronger than 6061 after welding while remaining weldable. Choose 6061 when maximum corrosion resistance or simpler welding is the priority.<\/p>\n

      Does welding weaken 7003?<\/h3>\n

      The heat-affected zone softens, as with most heat-treatable alloys. Design for the welded-zone strength, or apply post-weld aging where the spec allows.<\/p>\n

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

      \u5b9a\u5236\u94dd\u6750\u8ba2\u5355\u7684\u5178\u578b\u4ea4\u8d27\u5468\u671f\u662f\u591a\u4e45\uff1f<\/h3>\n

      \u5b9a\u5236\u5c3a\u5bf8\u548c\u70ed\u5904\u7406\u72b6\u6001\u901a\u5e38\u53ef\u572810\u81f360\u5929\u5185\u53d1\u8d27\u3002\u5177\u4f53\u65f6\u95f4\u7a97\u53e3\u8bf7\u5728\u8be2\u4ef7\u65f6\u786e\u8ba4\uff0c\u56e0\u5176\u53d6\u51b3\u4e8e\u5408\u91d1\u3001\u70ed\u5904\u7406\u72b6\u6001\u3001\u5c3a\u5bf8\u53ca\u8ba2\u5355\u6570\u91cf\u3002.<\/p>\n

      \u6700\u4f4e\u8ba2\u8d2d\u91cf\uff08MOQ\uff09\u662f\u591a\u5c11\uff1f<\/h3>\n

      \u6700\u5c0f\u8d77\u8ba2\u91cf\u7075\u6d3b\uff0c\u9010\u6848\u8bc4\u4f30\u3002\u5c0f\u6279\u91cf\u53ca\u6837\u54c1\u8ba2\u5355\u901a\u5e38\u53ef\u4ee5\u6ee1\u8db3\uff1b\u5927\u6279\u91cf\u6216\u6807\u51c6\u89c4\u683c\u8ba2\u5355\u66f4\u5177\u7ecf\u6d4e\u6027\u3002\u8bf7\u63d0\u4f9b\u6240\u9700\u5c3a\u5bf8\u548c\u6570\u91cf\u4ee5\u83b7\u53d6\u6b63\u5f0f\u62a5\u4ef7\u3002.<\/p>\n

      \u8ba2\u5355\u9644\u5e26\u54ea\u4e9b\u8d28\u91cf\u6587\u4ef6\uff1f<\/h3>\n

      \u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u5e26\u5de5\u5382\u6750\u8d28\u8bc1\u660e\u4e66\uff08MTC\uff09\u3002\u6211\u4eec\u7684\u7ba1\u7406\u4f53\u7cfb\u5df2\u901a\u8fc7ISO 9001\u3001ISO 14001\u53caISO 45001\u8ba4\u8bc1\u3002\u53ef\u6839\u636e\u8981\u6c42\u5b89\u6392SGS\u7b2c\u4e09\u65b9\u68c0\u6d4b\u62a5\u544a\u3002.<\/p>\n

      \u53d1\u8d27\u524d\u80fd\u5426\u8fdb\u884c\u5207\u5272\u3001\u673a\u52a0\u5de5\u6216\u8868\u9762\u5904\u7406\uff1f<\/h3>\n

      \u53ef\u4ee5\u3002\u6211\u4eec\u63d0\u4f9bCNC\u673a\u52a0\u5de5\u3001\u6fc0\u5149\u5207\u5272\u3001TIG\/MIG\u710a\u63a5\u4ee5\u53ca\u8868\u9762\u5904\u7406\u670d\u52a1\uff0c\u5305\u62ec\u9633\u6781\u6c27\u5316\u3001\u629b\u5149\u3001\u7c89\u672b\u55b7\u6d82\u53caPVC\u819c\u4fdd\u62a4\u3002.<\/p>\n

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

      \u8bf7\u63d0\u4f9b\u60a8\u7684\u5408\u91d1\/\u70ed\u5904\u7406\u72b6\u6001\u3001\u6240\u9700\u5f62\u6001\u3001\u5c3a\u5bf8\u3001\u6570\u91cf\u53ca\u4efb\u4f55\u52a0\u5de5\u6216\u8ba4\u8bc1\u8981\u6c42\u3002\u6211\u4eec\u7684\u56e2\u961f\u5c06\u56de\u590d\u5305\u542b\u4ea4\u8d27\u5468\u671f\u548c\u8fd0\u8f93\u6761\u6b3e\u7684\u62a5\u4ef7\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

      7003 aluminum is a medium-strength 7000-series (Al-Zn-Mg) alloy that is easier to weld than the high-strength 7075 and 7050 grades. It offers a strong, lightweight option for extruded frames, tubes, and plates in transport and sporting goods. Linsy supplies 7003 in sheet, coil, tube, and bar with tempers T5, T6, and T651.<\/p>\n

      \n\u53ef\u9009\u683c\u5f0f\uff1a<\/strong> sheet \/ coil, tube, bar \/ rod
      \n\u5e38\u89c1\u813e\u6c14\uff1a<\/strong> T6, T651, T5
      \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":8673,"template":"","meta":{"_seopress_titles_title":"7003 Aluminum Alloy Supplier \u2014 Welded Structural Bar, Tube, Plate | Linsy","_seopress_titles_desc":"7003 aluminum alloy (AlZn6Mg) for welded transport and sporting structures. Good strength with better weldability than 7075. ASTM B221, MTC every order.","_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],"product_tag":[],"class_list":["post-8667","product","type-product","status-publish","has-post-thumbnail","product_cat-7000-series-aluminum-alloys","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product\/8667","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\/8673"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/media?parent=8667"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_brand?post=8667"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_cat?post=8667"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_tag?post=8667"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}