{"id":9039,"date":"2025-09-01T01:57:38","date_gmt":"2025-09-01T01:57:38","guid":{"rendered":"https:\/\/premiumalu.com\/?post_type=product&#038;p=9039"},"modified":"2026-07-08T15:01:18","modified_gmt":"2026-07-08T15:01:18","slug":"7075-%e9%93%9d%e6%96%b9%e6%a3%92","status":"publish","type":"product","link":"https:\/\/premiumalu.com\/zh\/%e4%ba%a7%e5%93%81\/7075-%e9%93%9d%e6%96%b9%e6%a3%92\/","title":{"rendered":"7075-O\/T6\/T651\/T73\/T7351 \u94dd\u65b9\u68d2"},"content":{"rendered":"<h2>What Is 7075 Aluminum Square Bar?<\/h2>\n<p>7075 aluminum square bar is one of the strongest commercially available aluminum sections, with zinc as the primary alloying element delivering strength comparable to many steels at roughly one-third the weight. Linsy supplies 7075 square bar in T6, T651, T7351 and T7451 tempers for aircraft structures, molds, dies, fixtures and high-stress machine parts where rigidity is non-negotiable. In the T6 and T651 tempers it reaches peak tensile strength (~570 MPa); the T73\/T7351 and T7451 tempers trade some strength for improved resistance to stress-corrosion cracking, which matters for thicker sections and outdoor or corrosive service.<\/p>\n<h2>\u73b0\u6709\u76847075\u94dd\u5408\u91d1\u4ea7\u54c1<\/h2>\n<h3>7075 \u94dd\u65b9\u68d2<\/h3>\n<table>\n<tr>\n<th>Side (mm)<\/th>\n<th>\u957f\u5ea6\uff08\u6beb\u7c73\uff09<\/th>\n<th>\u813e\u6c14<\/th>\n<\/tr>\n<tr>\n<td>5 \u2013 200<\/td>\n<td>up to 16,000<\/td>\n<td>O, T6, T651, T7351, T7451<\/td>\n<\/tr>\n<tr>\n<td>Custom sizes available on request<\/td>\n<td>\u2014<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<\/table>\n<h2>\u89c4\u683c\u4e0e\u7b49\u6548\u724c\u53f7<\/h2>\n<p>7075 square bar is supplied to ASTM B221 \/ AMS 4154 (T6\/T651) and AMS 4078 (T7351) where applicable, with GB\/T 3191 and EN 754 references available on request. EN AW designation: EN AW-7075.<\/p>\n<h2>\u5316\u5b66\u6210\u5206<\/h2>\n<table>\n<tr>\n<th>\u8981\u7d20<\/th>\n<th>\u5185\u5bb9 (%)<\/th>\n<\/tr>\n<tr>\n<td>Si<\/td>\n<td>0.40\uff08\u4e0a\u9650\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u94c1<\/td>\n<td>\u6700\u5927 0.50<\/td>\n<\/tr>\n<tr>\n<td>\u94dc<\/td>\n<td>1.2 - 2.0<\/td>\n<\/tr>\n<tr>\n<td>\u9530<\/td>\n<td>0.30\uff08\u4e0a\u9650\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u9541<\/td>\n<td>2.1 - 2.9<\/td>\n<\/tr>\n<tr>\n<td>Cr<\/td>\n<td>0.18 - 0.28<\/td>\n<\/tr>\n<tr>\n<td>\u950c<\/td>\n<td>5.1 - 6.1<\/td>\n<\/tr>\n<tr>\n<td>Ti<\/td>\n<td>0.20\uff08\u6700\u5927\u503c\uff09<\/td>\n<\/tr>\n<tr>\n<td>Zr<\/td>\n<td>0.05 - 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>Al<\/td>\n<td>\u5e73\u8861<\/td>\n<\/tr>\n<\/table>\n<h2>\u4e0d\u540c\u56de\u706b\u72b6\u6001\u4e0b\u7684\u529b\u5b66\u6027\u80fd<\/h2>\n<table>\n<tr>\n<th>\u813e\u6c14<\/th>\n<th>\u6297\u62c9\u5f3a\u5ea6 (MPa)<\/th>\n<th>\u5c48\u670d\u5f3a\u5ea6 (MPa)<\/th>\n<th>\u5ef6\u4f38\u7387 (%)<\/th>\n<\/tr>\n<tr>\n<td>O<\/td>\n<td>230<\/td>\n<td>105<\/td>\n<td>10 \u6700\u5c0f\u503c<\/td>\n<\/tr>\n<tr>\n<td>T6<\/td>\n<td>570<\/td>\n<td>505<\/td>\n<td>11<\/td>\n<\/tr>\n<tr>\n<td>T651<\/td>\n<td>570<\/td>\n<td>505<\/td>\n<td>11<\/td>\n<\/tr>\n<tr>\n<td>T7351<\/td>\n<td>505<\/td>\n<td>435<\/td>\n<td>11<\/td>\n<\/tr>\n<tr>\n<td>T7451<\/td>\n<td>525<\/td>\n<td>455<\/td>\n<td>10<\/td>\n<\/tr>\n<\/table>\n<h2>\u786c\u5ea6\u9009\u62e9\u6307\u5357<\/h2>\n<p><strong>T6 \/ T651<\/strong> \u2014 maximum strength, best for machined parts and fixtures. <strong>T7351 \/ T7451<\/strong> \u2014 improved stress-corrosion resistance for structural parts in corrosive or outdoor service. 7075 is not a marine-grade alloy; for seawater exposure consider a cladding or a different grade and confirm with our engineers.<\/p>\n<h2>\u4e3b\u8981\u7279\u70b9<\/h2>\n<h3>Exceptional Strength-to-Weight<\/h3>\n<p>Among the strongest aluminum sections, ideal where mass matters.<\/p>\n<h3>\u826f\u597d\u7684\u673a\u68b0\u52a0\u5de5\u6027\u80fd<\/h3>\n<p>Cuts cleanly in T6\/T651; use rigid tooling and flood coolant.<\/p>\n<h3>\u710a\u63a5\u6027\u6709\u9650<\/h3>\n<p>7075 is generally not recommended for fusion welding; use mechanical fastening.<\/p>\n<h2>\u5e94\u7528<\/h2>\n<p>Aircraft structures, molds and dies, high-stress machine parts, fasteners and fittings, defense and sporting goods.<\/p>\n<h2>\u52a0\u5de5\u4e0e\u8868\u9762\u5904\u7406\u8bf4\u660e<\/h2>\n<p>We offer CNC machining, precision saw cutting, anodizing and polishing. 7075 work-hardens; use sharp tooling. For corrosion service, anodizing plus a sealant is advised.<\/p>\n<h2>\u8d28\u91cf\u6587\u4ef6\u4e0e\u68c0\u9a8c<\/h2>\n<p>Every order ships with an MTC (material test certificate). SGS third-party test reports are available on request. Linsy holds ISO 9001, ISO 14001 and ISO 45001.<\/p>\n<h2>Why Choose Linsy for 7075 Square Bar<\/h2>\n<p>Linsy Aluminum is a Shenzhen-based aluminum supplier with 20+ years of experience across the 1000\u20138000 series. We stock and custom-cut 7075 square bar, support CNC machining and surface finishing, and deliver MTC documentation with every order. Typical custom lead time is 10\u201360 days.<\/p>\n<h2>\u76f8\u5173\u8d44\u6e90<\/h2>\n<p>Explore these in-depth guides from our technical library:<\/p>\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 \u4e0e 7075 \u94dd\u5408\u91d1\uff1a\u6df1\u5165\u6bd4\u8f83\u6307\u5357<\/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 \u4e0e 7075\uff1a\u6df1\u5165\u5168\u9762\u7684\u6bd4\u8f83<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/7050-%e4%b8%8e-7075-%e9%93%9d%e5%90%88%e9%87%91%e7%9a%84%e5%8c%ba%e5%88%ab\/\">7050 \u4e0e 7075 \u94dd\u5408\u91d1\u7684\u533a\u522b<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/%e6%8e%8c%e6%8f%a1-7075-%e9%93%9d%e7%ae%a1%e7%bb%88%e6%9e%81%e6%8c%87%e5%8d%97\/\">7075 \u94dd\u7ba1\u7ec8\u6781\u6307\u5357<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/%e9%94%bb%e9%80%a0-7075-%e4%b8%8e-6061-%e9%80%89%e6%8b%a9%e6%ad%a3%e7%a1%ae%e7%9a%84%e9%93%9d%e5%90%88%e9%87%91\/\">\u953b\u9020 7075 \u4e0e 6061 \u94dd\u5408\u91d1\u7ec8\u6781\u6307\u5357<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/7075-t6-%e8%88%aa%e7%a9%ba%e7%ba%a7%e9%93%9d%e9%94%bb%e9%80%a0%e7%bb%88%e6%9e%81%e6%8c%87%e5%8d%97\/\">\u63a2\u7d22\u953b\u9020 7075-T6 \u822a\u7a7a\u5668\u7ea7\u94dd\u6750<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/%e6%8e%8c%e6%8f%a1-a7075-%e9%93%9d%e7%9a%84%e7%bb%88%e6%9e%81%e6%8c%87%e5%8d%97\/\">A7075 \u94dd\u6750\u7ec8\u6781\u6307\u5357<\/a><\/li>\n<li><a href=\"https:\/\/premiumalu.com\/zh\/%e6%8e%8c%e6%8f%a1-7075-t6-%e9%93%9d%e9%94%bb%e9%80%a0%e6%8a%80%e6%9c%af\/\">7075 T6 \u94dd\u953b\u9020\u7ec8\u6781\u6307\u5357<\/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 \u94dd\uff1a\u7279\u6027\u548c\u5e94\u7528\u6307\u5357<\/a><\/li>\n<\/ul>\n<h2>7075 Aluminum Square Bar FAQ<\/h2>\n<p><strong>What tempers are available for 7075 square bar?<\/strong><br \/>O, T6, T651, T7351 and T7451.<\/p>\n<p><strong>Is 7075 square bar weldable?<\/strong><br \/>Fusion welding is generally not recommended; use mechanical fastening.<\/p>\n<p><strong>What lead time should I expect?<\/strong><br \/>Typical custom lead time is 10\u201360 days depending on size and temper.<\/p>\n<h2>\u5e38\u89c1\u8ba2\u8d2d\u95ee\u9898\u89e3\u7b54<\/h2>\n<p><strong>\u4f60\u4eec\u63d0\u4f9b\u5de5\u5382\u6d4b\u8bd5\u8bc1\u4e66\u5417\uff1f<\/strong><br \/>Yes, an MTC is included with every order.<\/p>\n<p><strong>Can you cut to custom lengths?<\/strong><br \/>Yes, cut-to-length and CNC machining are supported.<\/p>\n<p><strong>What standards do you supply to?<\/strong><br \/>Commonly ASTM B221, AMS, GB\/T and EN references on request.<\/p>","protected":false},"excerpt":{"rendered":"<p>7075 aluminum square bar is one of the strongest commercially available aluminum sections, with zinc as the primary alloying element delivering strength comparable to many steels at roughly one-third the weight. Linsy supplies 7075 square bar in T6, T651, T7351 and T7451 tempers for aircraft structures, molds, dies, fixtures and high-stress machine parts where rigidity is non-negotiable.<\/p>\n<p>\n<strong>\u53ef\u9009\u683c\u5f0f\uff1a<\/strong> square bar<br \/>\n<strong>\u5e38\u89c1\u813e\u6c14\uff1a<\/strong> O \/ T6 \/ T651 \/ T7351 \/ T7451<br \/>\n<strong>\u5904\u7406\u652f\u6301\uff1a<\/strong> CNC machining, saw 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":9077,"template":"","meta":{"_seopress_titles_title":"7075 Aluminum Square Bar \u2014 Supplier | Linsy Aluminum","_seopress_titles_desc":"Linsy supplies 7075 aluminum square bar in O, T6, T651, T7351 and T7451 for aerospace and high-stress parts. MTC with 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":[193],"product_tag":[],"class_list":["post-9039","product","type-product","status-publish","has-post-thumbnail","product_cat-aluminum-square-bar","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product\/9039","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\/9077"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/media?parent=9039"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_brand?post=9039"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_cat?post=9039"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/zh\/wp-json\/wp\/v2\/product_tag?post=9039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}