{"id":9023,"date":"2025-08-30T08:43:13","date_gmt":"2025-08-30T08:43:13","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&#038;p=9023"},"modified":"2026-07-08T15:01:13","modified_gmt":"2026-07-08T15:01:13","slug":"7075-%e9%93%9d%e5%9c%86%e6%a3%92","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/zh\/%e4%ba%a7%e5%93%81\/7075-%e9%93%9d%e5%9c%86%e6%a3%92\/","title":{"rendered":"7075-O\/T6\/T651\/T73\/T7351 \u94dd\u5706\u68d2"},"content":{"rendered":"<h2>What Is 7075 Aluminum Round Bar?<\/h2>\n<p>7075 aluminum round bar is a top-tier aerospace alloy offering exceptional strength and hardness comparable to many steels. Supplied mainly in T6 and T651 tempers, it is the go-to choice for shafts, gears, and other critical high-stress components.<\/p>\n<h2>Available 7075 Aluminum Round Bar Products<\/h2>\n<p>Linsy supplies 7075 round bar across the common tempers. The size ranges below are typical; custom dimensions and tight tolerances can be quoted on request.<\/p>\n<h3>7075 \u94dd\u5706\u68d2<\/h3>\n<table>\n<tbody>\n<tr>\n<td><strong>\u5c3a\u5bf8<\/strong><\/td>\n<td><strong>\u5178\u578b\u8303\u56f4<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u76f4\u5f84<\/td>\n<td>6 \u2013 400 \u6beb\u7c73<\/td>\n<\/tr>\n<tr>\n<td>\u957f\u5ea6<\/td>\n<td>1,000 \u2013 6,000 mm (custom cut)<\/td>\n<\/tr>\n<tr>\n<td>\u60c5\u7eea<\/td>\n<td>O \/ T6 \/ T651 \/ T73 \/ T7351<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>7075 Specifications &amp; Equivalent Designations<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>\u4f53\u7cfb<\/strong><\/td>\n<td><strong>\u540d\u79f0<\/strong><\/td>\n<\/tr>\n<tr>\n<td>AA\uff08\u7f8e\u56fd\uff09<\/td>\n<td>7075<\/td>\n<\/tr>\n<tr>\n<td>EN AW<\/td>\n<td>EN AW-7075<\/td>\n<\/tr>\n<tr>\n<td>UNS<\/td>\n<td>A97075<\/td>\n<\/tr>\n<tr>\n<td>\u56fd\u9645\u6807\u51c6\u5316\u7ec4\u7ec7<\/td>\n<td>AlZn5.5MgCu<\/td>\n<\/tr>\n<tr>\n<td>\u5e38\u89c1\u72b6\u6001<\/td>\n<td>O \/ T6 \/ T651 \/ T73 \/ T7351<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Chemical Composition of 7075 Aluminum<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>\u8981\u7d20<\/strong><\/td>\n<td><strong>\u5185\u5bb9 (%)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u7845 (Si)<\/td>\n<td>0.40\uff08\u4e0a\u9650\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u94c1\uff08Fe\uff09<\/td>\n<td>\u6700\u5927 0.50<\/td>\n<\/tr>\n<tr>\n<td>\u94dc (Cu)<\/td>\n<td>1.2 - 2.0<\/td>\n<\/tr>\n<tr>\n<td>\u9530 (Mn)<\/td>\n<td>0.30\uff08\u4e0a\u9650\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u9541\uff08Mg\uff09<\/td>\n<td>2.1 - 2.9<\/td>\n<\/tr>\n<tr>\n<td>\u94ec (Cr)<\/td>\n<td>0.18 - 0.28<\/td>\n<\/tr>\n<tr>\n<td>\u950c (Zn)<\/td>\n<td>5.1 - 6.1<\/td>\n<\/tr>\n<tr>\n<td>\u949b (Ti)<\/td>\n<td>0.20\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u9506 (Zr)<\/td>\n<td>\u6700\u5927 0.25<\/td>\n<\/tr>\n<tr>\n<td>\u5176\u4ed6\uff08\u6bcf\u9879\uff09<\/td>\n<td>0.05 \u6700\u5927\u503c<\/td>\n<\/tr>\n<tr>\n<td>\u5176\u4ed6\uff08\u5171\u8ba1\uff09<\/td>\n<td>0.15 \u6700\u5927\u503c<\/td>\n<\/tr>\n<tr>\n<td>\u94dd (Al)<\/td>\n<td>\u5269\u4f59<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u4e0d\u540c\u56de\u706b\u72b6\u6001\u4e0b\u7684\u529b\u5b66\u6027\u80fd<\/h2>\n<p>Values below are typical AA reference figures for 7075 and should be confirmed against Linsy mill test data before specification.<\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>\u813e\u6c14<\/strong><\/td>\n<td><strong>\u62c9\u4f38\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/strong><\/td>\n<td><strong>\u5c48\u670d\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/strong><\/td>\n<td><strong>\u4f38\u957f\u7387 (%)<\/strong><\/td>\n<td><strong>\u526a\u5207\u5f3a\u5ea6\uff08\u5146\u5e15\uff09<\/strong><\/td>\n<\/tr>\n<tr>\n<td>O<\/td>\n<td>230<\/td>\n<td>105<\/td>\n<td>10<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>T6<\/td>\n<td>570<\/td>\n<td>505<\/td>\n<td>11<\/td>\n<td>330<\/td>\n<\/tr>\n<tr>\n<td>T651<\/td>\n<td>570<\/td>\n<td>505<\/td>\n<td>11<\/td>\n<td>330<\/td>\n<\/tr>\n<tr>\n<td>T73<\/td>\n<td>525<\/td>\n<td>470<\/td>\n<td>11<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>T7351<\/td>\n<td>525<\/td>\n<td>455<\/td>\n<td>11<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u786c\u5ea6\u9009\u62e9\u6307\u5357<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>\u813e\u6c14<\/strong><\/td>\n<td><strong>\u4f7f\u7528\u65f6\u673a<\/strong><\/td>\n<\/tr>\n<tr>\n<td>O<\/td>\n<td>Annealed, softest condition for forming; lowest strength.<\/td>\n<\/tr>\n<tr>\n<td>T6 \/ T651<\/td>\n<td>Peak strength tempers for general high-stress parts; T651 adds stress relief for improved dimensional stability.<\/td>\n<\/tr>\n<tr>\n<td>T73 \/ T7351<\/td>\n<td>Overaged tempers with improved corrosion resistance and reduced quench sensitivity; preferred for thick sections and corrosive environments.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Key Characteristics of 7075 Aluminum<\/h2>\n<h3>\u9ad8\u5f3a\u5ea6<\/h3>\n<p>7075 is one of the strongest commercial aluminum alloys, with T6\/T651 yield strength around 505 MPa.<\/p>\n<h3>Corrosion Resistance &amp; Stress Corrosion<\/h3>\n<p>Bare 7075 has moderate general corrosion resistance. The T73\/T7351 tempers improve resistance to stress-corrosion cracking, especially in thicker sections.<\/p>\n<h3>Machinability &amp; Weldability<\/h3>\n<p>Machinability is excellent in the T6 condition. Weldability is poor \u2014 fusion welding is generally not recommended; mechanical fastening or adhesive bonding is preferred.<\/p>\n<h2>\u5e38\u89c1\u5e94\u7528<\/h2>\n<ul>\n<li>Aircraft fuselage and wing structures<\/li>\n<li>High-stress machine parts and molds<\/li>\n<li>Defense and sporting goods<\/li>\n<li>Fasteners, fittings, and precision components<\/li>\n<\/ul>\n<h2>\u52a0\u5de5\u4e0e\u8868\u9762\u5904\u7406\u8bf4\u660e<\/h2>\n<p>7075 round bar can be CNC-machined, cut, and profiled to drawing. Anodizing is possible but offers limited corrosion benefit compared with 6xxx alloys; for corrosive service consider the T73 temper or a protective coating. Fusion welding is not advised \u2014 design for mechanical joining.<\/p>\n<h2>\u8d28\u91cf\u6587\u4ef6\u4e0e\u68c0\u9a8c<\/h2>\n<p>Every 7075 aluminum order ships with a Mill Test Certificate (EN 10204 3.1 MTC) confirming chemical composition and mechanical properties against the specified temper. In-process inspections cover dimensional tolerance, surface condition, and flatness or straightness as applicable. Third-party inspection and SGS test reports can be arranged on request for project-specific requirements.<\/p>\n<h2>Why Choose Linsy for 7075 Aluminum<\/h2>\n<ul>\n<li>\u6df1\u5733\u751f\u4ea7\u57fa\u5730\uff0c\u62e5\u6709\u8d85\u8fc720\u5e74\u7684\u94dd\u6750\u5236\u9020\u7ecf\u9a8c\u3002.<\/li>\n<li>Full 1000\u20138000 series coverage, including aerospace-grade 7075 in plate, bar, tube, and sheet.<\/li>\n<li>In-house processing: CNC machining, laser cutting, welding, anodizing, and polishing.<\/li>\n<li>\u901a\u8fc7ISO 9001\u3001ISO 14001\u548cISO 45001\u8ba4\u8bc1\u7684\u8d28\u91cf\u4e0e\u73af\u5883\u7ba1\u7406\u4f53\u7cfb\u3002.<\/li>\n<li>MTC provided with every shipment; custom sizes and tempers supported.<\/li>\n<\/ul>\n<h2>\u76f8\u5173\u8d44\u6e90<\/h2>\n<ul>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/6061-%e4%b8%8e-7075-%e9%93%9d%e5%90%88%e9%87%91%e6%b7%b1%e5%ba%a6%e5%af%b9%e6%af%94%e6%8c%87%e5%8d%97\/\">6061 vs 7075 Aluminum Alloys: In-Depth Comparison<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/2024-%e4%b8%8e-7075-%e7%9a%84%e6%b7%b1%e5%ba%a6%e7%bb%bc%e5%90%88%e6%af%94%e8%be%83\/\">2024 vs 7075: Comprehensive Comparison<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/%e6%8e%8c%e6%8f%a1-7075-t651-%e9%93%9d%e5%90%88%e9%87%91%e7%bb%bc%e5%90%88%e6%8c%87%e5%8d%97\/\">7075-T651 \u94dd\u5408\u91d1\u7efc\u5408\u6307\u5357<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/7075-t73-%e9%93%9d%e6%80%a7%e8%83%bd%e7%bb%88%e6%9e%81%e6%8c%87%e5%8d%97\/\">7075 T73 Aluminum: Properties and Applications<\/a><\/li>\n<\/ul>\n<h2>7075 Aluminum Round Bar FAQ<\/h2>\n<h3>Which temper should I choose?<\/h3>\n<p>For maximum strength use T6 or T651. For better corrosion resistance in thick or corrosive sections, choose T73\/T7351.<\/p>\n<h3>Can 7075 be welded?<\/h3>\n<p>Fusion welding of 7075 is generally not recommended due to cracking risk and strength loss. Mechanical fastening or bonding is preferred.<\/p>\n<h3>Do you offer custom sizes?<\/h3>\n<p>Yes. We cut to length and can machine to drawing. Provide required dimensions and tolerances in your RFQ.<\/p>\n<h2>\u5e38\u89c1\u8ba2\u8d2d\u95ee\u9898\u89e3\u7b54<\/h2>\n<h3>\u901a\u5e38\u7684\u4ea4\u8d27\u5468\u671f\u662f\u591a\u4e45\uff1f<\/h3>\n<p>\u6807\u51c6\u5e93\u5b58\u89c4\u683c\u901a\u5e38\u53ef\u572810\u81f360\u5929\u5185\u53d1\u8d27\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u56de\u706b\u72b6\u6001\u3001\u6570\u91cf\u53ca\u4efb\u4f55\u5b9a\u5236\u52a0\u5de5\u8981\u6c42\u3002\u8be2\u4ef7\u65f6\u8bf7\u4e0e\u6211\u4eec\u7684\u9500\u552e\u56e2\u961f\u786e\u8ba4\u786e\u5207\u65f6\u95f4\u8868\u3002.<\/p>\n<h3>\u80fd\u5426\u4f9b\u5e94\u5b9a\u5236\u5c3a\u5bf8\u548c\u56de\u706b\u72b6\u6001\uff1f<\/h3>\n<p>\u53ef\u4ee5\u3002\u6211\u4eec\u63d0\u4f9b\u5b9a\u5c3a\u5207\u5272\u3001\u952f\u5207\u53ca\u6309\u56fe\u7eb8\u8fdb\u884cCNC\u52a0\u5de5\uff0c\u5e76\u53ef\u6839\u636e\u8981\u6c42\u91c7\u8d2d\u7279\u5b9a\u56de\u706b\u72b6\u6001\u7684\u4ea7\u54c1\u3002\u8bf7\u5728\u8be2\u4ef7\u5355\u4e2d\u6ce8\u660e\u6240\u9700\u5c3a\u5bf8\u53ca\u516c\u5dee\u3002.<\/p>\n<h3>\u662f\u5426\u63d0\u4f9b\u5de5\u5382\u8bc1\u4e66\uff1f<\/h3>\n<p>\u6bcf\u4efd\u8ba2\u5355\u5747\u9644\u5e26\u4e00\u4efd\u5de5\u5382\u6d4b\u8bd5\u8bc1\u4e66\uff08MTC\uff09\u3002\u5fc5\u8981\u65f6\u53ef\u5b89\u6392SGS\u6216\u5176\u4ed6\u7b2c\u4e09\u65b9\u68c0\u9a8c\u62a5\u544a\u3002.<\/p>\n<h3>\u53ef\u63d0\u4f9b\u54ea\u4e9b\u8868\u9762\u5904\u7406\uff1f<\/h3>\n<p>\u5e38\u89c1\u9009\u9879\u5305\u62ec\u539f\u59cb\u8868\u9762\u3001\u9633\u6781\u6c27\u5316\u548c\u629b\u5149\u3002\u5177\u4f53\u8868\u9762\u5904\u7406\u5e94\u5728\u62a5\u4ef7\u9636\u6bb5\u8fbe\u6210\u4e00\u81f4\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>7075 aluminum round bar is a top-tier aerospace alloy offering exceptional strength and hardness comparable to many steels. Supplied mainly in T6 and T651 tempers, it is the go-to choice for shafts, gears, and other critical high-stress components. Linsy supplies 7075 round bar in O, T6, T651, T73, and T7351 tempers with custom cutting, CNC machining, and anodizing support. Every order ships with an MTC report so you can verify composition and properties before production.<\/p>\n<p>\n<strong>\u53ef\u9009\u683c\u5f0f\uff1a<\/strong> round bar \/ plate \/ sheet<br \/>\n<strong>\u5e38\u89c1\u813e\u6c14\uff1a<\/strong> O \/ T6 \/ T651 \/ T73 \/ T7351<br \/>\n<strong>\u5904\u7406\u652f\u6301\uff1a<\/strong> CNC machining \/ cutting \/ anodizing \/ polishing<br \/>\n<strong>\u8d28\u91cf\u6587\u4ef6\uff1a<\/strong> \u6bcf\u7b14\u8ba2\u5355\u5747\u9644\u6709MTC\u62a5\u544a<\/p>","protected":false},"featured_media":9111,"template":"","meta":{"_seopress_titles_title":"7075 Aluminum Round Bar | EN AW-7075 | ISO 9001","_seopress_titles_desc":"7075 aluminum round bar in O\/T6\/T651\/T73 tempers. 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