{"id":17716,"date":"2026-04-09T21:10:28","date_gmt":"2026-04-09T15:40:28","guid":{"rendered":"https:\/\/aluminiummagazine.com\/mag\/?p=17716"},"modified":"2026-04-16T18:54:38","modified_gmt":"2026-04-16T13:24:38","slug":"aluminium-7068-aluminum-7068-strongest-alloy-properties-guide","status":"publish","type":"post","link":"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-7068-aluminum-7068-strongest-alloy-properties-guide.html","title":{"rendered":"Aluminium 7068 (Aluminum 7068): The Ultimate Strength Aluminum Alloy"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Aluminium 7068 \u2013 also known as Aluminum 7068 \u2013 is a heat-treatable aluminium-zinc-magnesium-copper alloy that holds the crown as the strongest commercially available aluminum alloy. Developed by Kaiser Aluminum as a higher-strength replacement for 7075 in ordnance applications, 7068 aluminum offers ultimate tensile strength exceeding 700 MPa (over 100 ksi) \u2013 putting it in the same league as some structural steels. With yield strength 15\u201330% higher than 7075, combined with good corrosion resistance, excellent fatigue strength, and good machinability, 7068 is the material of choice for applications where every gram counts and every megapascal matters.<\/strong><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What is Aluminium 7068?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium alloy 7068 is a member of the <strong>7000 series<\/strong> (aluminium\u2011zinc\u2011magnesium\u2011copper) \u2013 the strongest family of aluminium alloys used in engineering. Like 7075 and 7475, 7068 is a <strong>heat\u2011treatable<\/strong> alloy that achieves its extraordinary mechanical properties through controlled solution heat treatment and artificial aging.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">But 7068 is different. While 7075 set the standard for high\u2011strength aluminium for decades, 7068 was designed to push the boundaries further. Registered with the US Aluminium Association and produced to <strong>AMS 4331<\/strong> (chemical and mechanical specifications) and <strong>AMS 2772<\/strong> (heat treatment), 7068 represents the state of the art in aluminium alloy development. Its tensile strength is comparable to that of some steels, yet it retains aluminium\u2019s characteristic low density of just 2.85 g\/cm\u00b3.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 was originally developed as a <strong>higher-strength alternative to 7075 for ordnance applications<\/strong>, but its exceptional properties have since made it indispensable across aerospace, defence, automotive motorsport, and high\u2011end sporting goods.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Characteristics at a Glance:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Property<\/th><th class=\"has-text-align-center\" data-align=\"center\">Value<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Density<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.85 g\/cm\u00b3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Melting Range<\/td><td class=\"has-text-align-center\" data-align=\"center\">476 \u2013 635 \u00b0C<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Thermal Conductivity<\/td><td class=\"has-text-align-center\" data-align=\"center\">190 W\/m\u00b7K<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Modulus of Elasticity<\/td><td class=\"has-text-align-center\" data-align=\"center\">73 GPa<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Electrical Resistivity<\/td><td class=\"has-text-align-center\" data-align=\"center\">5.50 \u00d7 10\u207b\u2076 ohm\u00b7cm<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Data compiled from industry specifications<\/em><\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Chemical Composition of Aluminium 7068<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 is a zinc\u2011rich alloy with carefully balanced additions of magnesium, copper, and zirconium. The <strong>zinc content (7.3\u20138.3%)<\/strong> provides the primary strengthening mechanism through fine precipitate formation during aging. The <strong>copper (1.6\u20132.4%)<\/strong> enhances strength and improves stress\u2011corrosion resistance. The <strong>zirconium addition (0.05\u20130.15%)<\/strong> controls grain structure and improves toughness.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Element<\/th><th class=\"has-text-align-center\" data-align=\"center\">Percentage (%)<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Aluminum (Al)<\/td><td class=\"has-text-align-center\" data-align=\"center\">85.43 \u2013 Balance<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Zinc (Zn)<\/td><td class=\"has-text-align-center\" data-align=\"center\">7.3 \u2013 8.3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Magnesium (Mg)<\/td><td class=\"has-text-align-center\" data-align=\"center\">2.2 \u2013 3.0<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Copper (Cu)<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.6 \u2013 2.4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Zirconium (Zr)<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.05 \u2013 0.15<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Iron (Fe)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.15<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Silicon (Si)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.12<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Manganese (Mn)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.10<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Titanium (Ti)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.10<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Chromium (Cr)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.05<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Others (Each)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.05<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Others (Total)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22640.15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Source: AMS 4331 \/ US Aluminium Association<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The combination of <strong>zinc and magnesium<\/strong> forms the strengthening precipitate MgZn\u2082 (eta phase) during artificial aging. <strong>Copper<\/strong> provides additional solid\u2011solution strengthening and improves resistance to stress\u2011corrosion cracking. The <strong>zirconium<\/strong> acts as a recrystallisation inhibitor, helping to maintain a fine, unrecrystallised grain structure that is essential for high toughness.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Properties of Aluminium 7068<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udcaa Unmatched Strength \u2013 The Highest of Any Aluminium Alloy<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is where <strong>Aluminium 7068 truly stands alone<\/strong>. Kaiser Aluminum alloy 7068 has the <strong>highest mechanical properties (tensile strength) of all commercially available aluminium alloys<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Typical Mechanical Properties by Temper:<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Temper<\/th><th>Ultimate Tensile Strength<\/th><th>Yield Strength (0.2%)<\/th><th class=\"has-text-align-center\" data-align=\"center\">Elongation<\/th><th class=\"has-text-align-center\" data-align=\"center\">Hardness (Brinell)<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>7068-T6<\/strong><\/td><td>698 MPa (101 ksi)<\/td><td>648 MPa (94 ksi)<\/td><td class=\"has-text-align-center\" data-align=\"center\">9.0%<\/td><td class=\"has-text-align-center\" data-align=\"center\">185<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>7068-T6511<\/strong><\/td><td>710 MPa (103 ksi)<\/td><td>683 MPa (99.1 ksi)<\/td><td class=\"has-text-align-center\" data-align=\"center\">9.0%<\/td><td class=\"has-text-align-center\" data-align=\"center\">190<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Data from MatWeb and HDM Industrial Supply<\/em><\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">For context, a similar product produced from 7075\u2011T6511 has a typical ultimate tensile strength of 640 MPa (93 ksi) and a yield strength of 590 MPa (86 ksi). <strong>7068\u2011T6511 offers a yield strength of 683 MPa (99.1 ksi) \u2013 a 15\u201320% improvement over 7075<\/strong>. Some sources even report improvements of up to 30% in certain tempers and product forms.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\udde0 Excellent Fatigue Strength<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 exhibits <strong>excellent fatigue strength<\/strong>, making it highly suitable for components subjected to cyclic loading \u2013 such as connecting rods, suspension components, and aerospace structural parts. Its fatigue properties have been ratified for inclusion in MIL Handbook 5 \/ MMPDS (Metallic Materials Properties Development and Standardization), confirming its reliability for safety\u2011critical aerospace applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udee1\ufe0f Good Corrosion Resistance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The corrosion resistance of 7068 is <strong>comparable to that of 7075<\/strong>, which is considered good for a high\u2011strength 7000 series alloy. However, like most 7xxx alloys, 7068 is susceptible to stress\u2011corrosion cracking (SCC) in certain tempers and orientations. For applications requiring maximum resistance to SCC, the <strong>T76511 temper<\/strong> is available to order.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 is also reported to offer <strong>improved corrosion resistance compared to 7075<\/strong> while maintaining comparable or superior strength, making it a more reliable option for long\u2011term, high\u2011stress applications in harsh environments.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2699\ufe0f Good Machinability<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 has <strong>good machining characteristics<\/strong>, matching those of 7075 aluminium. The alloy machines well in both annealed and heat\u2011treated conditions. Best practices include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Using <strong>sharp, carbide\u2011tipped tools<\/strong><\/li>\n\n\n\n<li>Applying <strong>adequate coolant<\/strong> to prevent work hardening and achieve a high\u2011quality surface finish<\/li>\n\n\n\n<li>Employing <strong>positive rake angles<\/strong> and high cutting speeds<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The high strength of 7068 demands precision tooling for optimal results, but with proper setup, it machines efficiently.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd27 Formability<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 can be formed using conventional methods, but it is <strong>easier to form in the annealed (O) condition<\/strong> due to its high strength in heat\u2011treated tempers. For complex forming operations, forming in the annealed state followed by heat treatment is recommended.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udeab Weldability \u2013 A Significant Challenge<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Aluminium 7068 has limited weldability.<\/strong> Like other high\u2011zinc 7000 series alloys, it is sensitive to hot cracking during conventional fusion welding. According to industry welding ratings:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B rating<\/strong> \u2013 Weldable with special techniques or for specific applications that justify preliminary trials or testing to develop welding procedure and weld performance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Friction stir welding (FSW)<\/strong> has been successfully demonstrated for AA 7068\u2011T6 plates, offering a potential solid\u2011state joining method for this alloy. However, for most applications, mechanical fastening (riveting, bolting) remains the preferred joining method.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfa8 Anodising \u2013 Excellent Response<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 responds <strong>very well to anodising<\/strong>. Anodising is possible using all traditional techniques. When performing hard anodising, the surface becomes more abrasion resistant. This makes 7068 suitable for applications requiring both extreme strength and an attractive, corrosion\u2011resistant surface finish.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd25 Heat Treatment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Like other 7000 series alloys, <strong>Aluminium 7068 is heat treatable<\/strong>. The typical heat treatment sequence is:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Solution heat treatment<\/strong> \u2013 heating to approximately 465\u2013480\u00b0C to dissolve alloying elements<\/li>\n\n\n\n<li><strong>Quenching<\/strong> \u2013 rapid cooling (usually in water) to retain the dissolved elements in supersaturated solid solution<\/li>\n\n\n\n<li><strong>Artificial aging<\/strong> \u2013 controlled heating (typically 120\u2013175\u00b0C) to precipitate fine strengthening particles (MgZn\u2082)<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Common tempers for 7068 include:<\/strong><\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Temper<\/th><th>Description<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T6<\/strong><\/td><td>Solution treated and artificially aged \u2013 maximum strength<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T651<\/strong><\/td><td>Solution treated, stress\u2011relieved by stretching, then artificially aged<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T6511<\/strong><\/td><td>Similar to T651, for extruded rod and bar<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T76511<\/strong><\/td><td>Overaged for improved stress\u2011corrosion cracking resistance<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Applications of Aluminium 7068<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 is a <strong>premium, ultra\u2011high\u2011strength alloy<\/strong> whose exceptional strength\u2011to\u2011weight ratio makes it essential for applications where every gram of weight reduction is critical and failure is not an option.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2708\ufe0f Aerospace \u2013 <em>The Primary Application<\/em><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7068 aluminium is widely used in aerospace components where maximum strength and minimum weight are paramount:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Landing gear parts and brackets<\/strong> \u2013 where extremely high strength is required for heavy loads and repeated landings<\/li>\n\n\n\n<li><strong>Aircraft structural components<\/strong> \u2013 including wing fittings and fuselage frames<\/li>\n\n\n\n<li><strong>Valve bodies for aerospace vehicles<\/strong> \u2013 requiring high strength and pressure resistance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 has been adopted by the <strong>Federal Aviation Administration (FAA)<\/strong> and the <strong>National Aeronautics and Space Administration (NASA)<\/strong> for critical applications.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfaf Defence &amp; Ordnance \u2013 The Original Purpose<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7068 was initially developed for ordnance applications as a higher-strength alternative to 7075:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Shell casings and munitions components<\/strong> \u2013 where high strength and consistent performance are essential<\/li>\n\n\n\n<li><strong>Weapon system components<\/strong><\/li>\n\n\n\n<li><strong>Military vehicle parts<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfce\ufe0f High\u2011Performance Automotive &amp; Motorsport<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The combination of extreme strength, fatigue resistance, and light weight makes 7068 ideal for racing and high\u2011performance applications:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Connecting rods<\/strong> \u2013 one of the most common applications<\/li>\n\n\n\n<li><strong>Automotive valve bodies and link rods<\/strong><\/li>\n\n\n\n<li><strong>High\u2011performance suspension components<\/strong><\/li>\n\n\n\n<li><strong>Autosport gearbox actuators and wheel components<\/strong><\/li>\n\n\n\n<li><strong>Automobile shock absorbers<\/strong> and <strong>motorcycle gears<\/strong><\/li>\n\n\n\n<li><strong>Fuel pumps for racing engines<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\ude7a Medical &amp; Precision Engineering<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7068\u2019s combination of high strength, corrosion resistance, and biocompatibility makes it suitable for:<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Prosthetic limbs<\/strong><\/li>\n\n\n\n<li><strong>Load cells<\/strong><\/li>\n\n\n\n<li><strong>High\u2011precision mechanical components<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfbf High\u2011End Sporting Goods &amp; Recreation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The extreme strength\u2011to\u2011weight ratio of 7068 is highly valued in lightweight recreational equipment:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bicycle frames and components<\/strong> \u2013 particularly high\u2011end racing bicycles<\/li>\n\n\n\n<li><strong>Tents, ski and backpack rods<\/strong> \u2013 where weight reduction is critical<\/li>\n\n\n\n<li><strong>Mountain climbing equipment<\/strong><\/li>\n\n\n\n<li><strong>Snowmobile engine shafts<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd27 General Precision Engineering<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Hydraulic valve components<\/strong><\/li>\n\n\n\n<li><strong>High\u2011pressure solenoids<\/strong><\/li>\n\n\n\n<li><strong>Flexible shaft couplings<\/strong><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Aluminium 7068 vs. Aluminium 7075<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The comparison between <strong>7068<\/strong> and <strong>7075<\/strong> is the most important one for engineers choosing an ultra\u2011high\u2011strength 7000 series alloy. Rather than presenting a dense table, here is a practical guide:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Aspect<\/th><th>7068<\/th><th>7075<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Ultimate Tensile Strength<\/strong><\/td><td><strong>710 MPa (103 ksi)<\/strong> \u2013 the highest of any aluminium alloy<\/td><td>570\u2013640 MPa \u2013 excellent, but lower<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Yield Strength<\/strong><\/td><td><strong>683 MPa (99.1 ksi)<\/strong> \u2013 15\u201330% higher<\/td><td>590 MPa \u2013 the industry benchmark<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Strength\u2011to\u2011Weight Ratio<\/strong><\/td><td><strong>Superior<\/strong> \u2013 permits lighter products with reduced cross\u2011sectional area<\/td><td>Excellent, but lower than 7068<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Elevated Temperature Performance<\/strong><\/td><td><strong>Better than 7075<\/strong> \u2013 retains properties at higher temperatures<\/td><td>Good, but degrades above approximately 120\u00b0C<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Corrosion Resistance<\/strong><\/td><td><strong>Comparable to 7075<\/strong> (improved in some reports)<\/td><td>Good \u2013 established track record<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Fatigue Strength<\/strong><\/td><td><strong>Excellent<\/strong> \u2013 among the best in 7000 series<\/td><td>Good, but lower than 7068<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Machinability<\/strong><\/td><td><strong>Good<\/strong> \u2013 comparable to 7075<\/td><td>Good \u2013 widely machined<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Weldability<\/strong><\/td><td><strong>Limited<\/strong> \u2013 requires special techniques or FSW<\/td><td>Very poor \u2013 generally not welded<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Fracture Toughness<\/strong><\/td><td><strong>Moderate<\/strong> \u2013 similar to 7075\u2011T6 (K_IC \u2248 16.5 MPa\u00b7\u221am)<\/td><td>Moderate in T6, improved in T73 temper<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Cost<\/strong><\/td><td><strong>Higher<\/strong> \u2013 premium alloy for specialised applications<\/td><td>Lower \u2013 the industry standard<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Availability<\/strong><\/td><td>Available, but less common than 7075<\/td><td>Widely available globally<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Primary Use<\/strong><\/td><td><strong>Maximum\u2011strength applications<\/strong> \u2013 where every gram counts<\/td><td>General high\u2011strength applications<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Pro Tip:<\/strong> Choose <strong>7068<\/strong> when you need the absolute highest strength possible from an aluminium alloy \u2013 in aerospace landing gear, racing connecting rods, or high\u2011end sporting goods. Choose <strong>7075<\/strong> when the application demands very high strength but the ultimate maximum is not required, or when cost and availability are primary drivers.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">For a detailed, interactive side\u2011by\u2011side comparison of 7068 with any other aluminium alloy \u2013 including 7075, 2024, 7475, or 6061 \u2013 visit the <strong><a href=\"https:\/\/aluminiummagazine.com\/webtools\/alloy-comparison-tool.html\">Aluminium Alloy Comparison Tool<\/a><\/strong>. This tool allows you to compare over 40 alloy types across properties including strength, corrosion resistance, weldability, and thermal conductivity.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Fabrication &amp; Workability Guide<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd28 Forming<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 can be formed using conventional methods, but it is <strong>easier to form in the annealed (O) condition<\/strong>. In the heat\u2011treated condition (T6, T6511), the alloy has significantly higher strength and reduced ductility, making forming more difficult.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2699\ufe0f Machining<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 has <strong>good machining characteristics<\/strong>, comparable to 7075. Best practices include:<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use <strong>carbide\u2011tipped tools<\/strong> with sharp cutting edges<\/li>\n\n\n\n<li>Apply <strong>adequate coolant<\/strong> to prevent work hardening<\/li>\n\n\n\n<li>Employ <strong>high cutting speeds<\/strong> with positive rake angles<\/li>\n\n\n\n<li>For best surface finish, use proper lubrication<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd25 Heat Treatment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As a heat\u2011treatable alloy, 7068 can be significantly strengthened by thermal processing:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-center\" data-align=\"center\">Process<\/th><th>Typical Parameters<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Solution Treatment<\/strong><\/td><td>465\u2013480\u00b0C \u2013 hold for sufficient time to dissolve soluble phases<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Quenching<\/strong><\/td><td>Cold water \u2013 rapid cooling to retain supersaturated solid solution<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Aging (T6\/T651)<\/strong><\/td><td>120\u2013175\u00b0C \u2013 12\u201324 hours (depending on specific temper)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Overaging (T76\/T76511)<\/strong><\/td><td>Higher aging temperatures for SCC resistance<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udeab Welding \u2013 Important Considerations<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Conventional fusion welding of Aluminium 7068 is challenging and not recommended for most applications.<\/strong> The alloy is rated <strong>B<\/strong> for weldability \u2013 weldable with special techniques or for specific applications that justify preliminary trials.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Alternative joining methods include:<\/strong><\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Riveting<\/strong> \u2013 the traditional aerospace approach for high\u2011strength 7xxx alloys<\/li>\n\n\n\n<li><strong>Bolting<\/strong> \u2013 suitable for many structural applications<\/li>\n\n\n\n<li><strong>Friction stir welding (FSW)<\/strong> \u2013 a solid\u2011state process that has been successfully demonstrated for AA 7068\u2011T6 plates<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfa8 Anodising<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 responds <strong>very well to anodising<\/strong> using all traditional techniques. Hard anodising can be applied to increase surface abrasion resistance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u2744\ufe0f Cold Working<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cold working is not typically applied to 7068 in heat\u2011treated tempers due to its high strength. In the annealed condition, the alloy can be cold worked, but this will affect subsequent heat treatment response.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div style=\"height:75px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why Choose Aluminium 7068?<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u2705 Advantages<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Highest tensile strength of any commercially available aluminium alloy<\/strong> \u2013 ultimate strength up to 710 MPa (103 ksi)<\/li>\n\n\n\n<li><strong>15\u201330% higher yield strength than 7075<\/strong> \u2013 up to 683 MPa<\/li>\n\n\n\n<li><strong>Excellent fatigue strength<\/strong> \u2013 superior to most other high\u2011strength aluminium alloys<\/li>\n\n\n\n<li><strong>Good machinability<\/strong> \u2013 comparable to 7075<\/li>\n\n\n\n<li><strong>Good corrosion resistance<\/strong> \u2013 comparable to 7075<\/li>\n\n\n\n<li><strong>Excellent anodising response<\/strong> \u2013 using all traditional techniques<\/li>\n\n\n\n<li><strong>High thermal conductivity<\/strong> \u2013 190 W\/m\u00b7K<\/li>\n\n\n\n<li><strong>Heat treatable<\/strong> \u2013 properties can be tailored through thermal processing<\/li>\n\n\n\n<li><strong>Fully recyclable<\/strong> \u2013 sustainable for aerospace and defence applications<\/li>\n\n\n\n<li><strong>Strength comparable to some steels<\/strong> \u2013 at approximately one\u2011third the density<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c Limitations<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Limited weldability<\/strong> \u2013 conventional fusion welding is not recommended; FSW is possible but specialised<\/li>\n\n\n\n<li><strong>Higher cost than 7075<\/strong> \u2013 a premium alloy for maximum\u2011strength applications<\/li>\n\n\n\n<li><strong>Lower availability than 7075<\/strong> \u2013 less commonly stocked<\/li>\n\n\n\n<li><strong>Moderate fracture toughness<\/strong> \u2013 similar to 7075\u2011T6; overaged tempers improve SCC resistance at the cost of some strength<\/li>\n\n\n\n<li><strong>Susceptible to stress\u2011corrosion cracking<\/strong> in T6 temper \u2013 requires T76 or T76511 temper for SCC\u2011prone environments<\/li>\n\n\n\n<li><strong>Not suitable for high\u2011temperature service above approximately 120\u2013150\u00b0C<\/strong> \u2013 strength degrades with prolonged thermal exposure (though better than 7075)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Summary<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 7068 (Aluminum 7068) stands alone as the <strong>strongest commercially available aluminium alloy<\/strong>. With ultimate tensile strengths exceeding 700 MPa and yield strengths approaching 700 MPa, 7068 competes directly with structural steels \u2013 yet retains aluminium\u2019s characteristic low density of just 2.85 g\/cm\u00b3.<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Developed by Kaiser Aluminum as a higher\u2011strength successor to 7075, 7068 has proven itself across the most demanding applications: from landing gear components and ordnance systems to racing connecting rods and high\u2011end bicycle frames. Its combination of extreme strength, excellent fatigue resistance, good corrosion resistance, and good machinability makes it the ultimate choice for engineers who need to extract the maximum possible performance from every gram of material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your application demands the <strong>absolute highest strength available from an aluminium alloy<\/strong>, Aluminium 7068 is the definitive solution. For the latest technical data and real\u2011time alloy comparisons, explore the <strong><a href=\"https:\/\/aluminiummagazine.com\/webtools\/alloy-comparison-tool.html\">Aluminium Alloy Comparison Tool<\/a><\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udcda Related Articles<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Deepen your understanding of aluminium alloys with these curated guides:<\/p><div class=\"pai-ad\" style=\"min-height:250px;visibility:hidden;\"><span style=\"display: block; text-align: center; font-size: 10px; margin: 0 0 10px 0; color: #999999;\">Ads<\/span>\r\n<!-- Display-300x250-1 -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:inline-block;width:300px;height:250px\"\r\n     data-ad-client=\"ca-pub-3838168351244230\"\r\n     data-ad-slot=\"9933646018\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/aluminiummagazine.com\/webtools\/alloy-comparison-tool.html\">Aluminium Alloy Comparison Tool<\/a><\/strong> \u2013 Compare 40+ aluminium alloys side by side to find the perfect material for your project<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-7075.html\">Aluminium 7075: The Original High\u2011Strength Aerospace Alloy<\/a><\/strong> \u2013 The first\u2011generation 7000 series alloy that set the industry standard<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-7475-aluminum-7475-alloy-properties-aerospace-guide.html\">Aluminium 7475: The Second\u2011Generation Aerospace Alloy with Superior Fracture Toughness<\/a><\/strong> \u2013 The toughness\u2011optimised 7000 series alloy for damage\u2011tolerant designs<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/aluminiummagazine.com\/mag\/faqs\/why-is-aluminum-used-for-aircraft-bodies.html\">Why Is Aluminum Used for Aircraft Bodies?<\/a><\/strong> \u2013 Understanding the role of 7000 series alloys in aerospace<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-6061-t6-alloy-properties-machining-applications-guide.html\">Aluminium 6061 T6: Properties, Machining &amp; Applications<\/a><\/strong> \u2013 The general\u2011purpose heat\u2011treatable alloy for non\u2011critical structures<\/li>\n<\/ul>\n<\/p><script>document.addEventListener(\"DOMContentLoaded\",function(){\n        if(window.innerWidth <= 768){\n            if (\"immediate\" === \"delay\") {\n                setTimeout(function(){document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\")},0);\n            } else if (\"immediate\" === \"scroll\") {\n                window.addEventListener(\"scroll\",function(){\n                    let s=window.scrollY\/(document.body.scrollHeight-window.innerHeight);\n                    if(s>0.1){\n                        document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\");\n                    }\n                });\n            } else {\n                document.querySelectorAll(\".pai-ad\").forEach(el=>el.style.visibility=\"visible\");\n            }\n        } else {\n            document.querySelectorAll(\".pai-ad\").forEach(el=>el.remove());\n        }\n    });<\/script>","protected":false},"excerpt":{"rendered":"<p>Aluminium 7068 \u2013 also known as Aluminum 7068 \u2013 is a heat-treatable aluminium-zinc-magnesium-copper alloy that holds the crown as the strongest commercially available aluminum alloy. Developed by Kaiser Aluminum as a higher-strength replacement for 7075 in ordnance applications, 7068 aluminum offers ultimate tensile strength exceeding 700 MPa (over 100 ksi) \u2013 putting it in the &#8230; <a title=\"Aluminium 7068 (Aluminum 7068): The Ultimate Strength Aluminum Alloy\" class=\"read-more\" href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-7068-aluminum-7068-strongest-alloy-properties-guide.html\" aria-label=\"Read more about Aluminium 7068 (Aluminum 7068): The Ultimate Strength Aluminum Alloy\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":17717,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[721],"tags":[4111,4109],"class_list":["post-17716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aluminium","tag-aluminium-alloys","tag-aluminum"],"_links":{"self":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/17716","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/comments?post=17716"}],"version-history":[{"count":0,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/17716\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media\/17717"}],"wp:attachment":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media?parent=17716"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/categories?post=17716"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/tags?post=17716"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}