{"id":19691,"date":"2026-11-13T17:48:21","date_gmt":"2026-11-13T12:18:21","guid":{"rendered":"https:\/\/aluminiummagazine.com\/mag\/?p=19691"},"modified":"2026-11-13T17:48:22","modified_gmt":"2026-11-13T12:18:22","slug":"aluminium-6463","status":"publish","type":"post","link":"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-6463.html","title":{"rendered":"Aluminium 6463"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Aluminium 6463<\/strong> \u2013 also known as Aluminum 6463 \u2013 is a heat\u2011treatable aluminium\u2011magnesium\u2011silicon alloy belonging to the 6000 series. While it is chemically a close relative of 6063, 6463 is <strong>not a general\u2011purpose structural alloy<\/strong>. It was developed and is specified for one defining purpose: <strong>producing a brilliant, mirror\u2011like anodized finish<\/strong>. Through tightly controlled chemistry \u2013 <strong>reduced iron and increased copper relative to 6063<\/strong> \u2013 6463 delivers the specular surface quality required for bright trim, architectural profiles, automotive bumpers, decorative hardware and reflective components. It is the <strong>primary bright extrusion alloy<\/strong> of the 6xxx family, and its unique surface aesthetics set it apart from every other alloy in its class.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What is Aluminium 6463?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium alloy 6463 is a member of the 6000 series (aluminium\u2011magnesium\u2011silicon) and is formally a <strong>variation of 6063<\/strong> \u2013 alloys that differ only in the second digit are modifications of the same base composition. The critical difference lies in the <strong>impurity and trace\u2011element control<\/strong>: 6463 limits iron to a maximum of <strong>0.15%<\/strong> (compared with up to 0.35% in 6063) and permits copper up to <strong>0.20%<\/strong> (compared with 0.10% in 6063). Iron inhibits brightness, while copper enhances specular reflectance \u2013 so 6463 is essentially <strong>6063 refined for optical performance<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unlike 6063, which is produced in a wide range of product forms, <strong>6463 is generally formed only by extrusion<\/strong>. It is commonly heat treated to tempers T4, T5 and T6, each offering a different balance of strength and formability. The alloy received its standard designation in <strong>1957<\/strong> and is covered by standards including <strong>ASTM B221, EN 573\u20113 and EN 755\u20112<\/strong>. Alternate designations include <strong>AlMg0.7Si(B), A96463 and EN AW\u20116463<\/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<div class=\"afb-block features-list-block\"><h3 class=\"afb-title\"><svg class=\"afb-icon\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><circle cx=\"12\" cy=\"12\" r=\"3\"><\/circle><path d=\"M19.4 15a1.65 1.65 0 0 0 .33 1.82l.06.06a2 2 0 0 1 0 2.83 2 2 0 0 1-2.83 0l-.06-.06a1.65 1.65 0 0 0-1.82-.33 1.65 1.65 0 0 0-1 1.51V21a2 2 0 0 1-2 2 2 2 0 0 1-2-2v-.09A1.65 1.65 0 0 0 9 19.4a1.65 1.65 0 0 0-1.82.33l-.06.06a2 2 0 0 1-2.83 0 2 2 0 0 1 0-2.83l.06-.06a1.65 1.65 0 0 0 .33-1.82 1.65 1.65 0 0 0-1.51-1H3a2 2 0 0 1-2-2 2 2 0 0 1 2-2h.09A1.65 1.65 0 0 0 4.6 9a1.65 1.65 0 0 0-.33-1.82l-.06-.06a2 2 0 0 1 0-2.83 2 2 0 0 1 2.83 0l.06.06a1.65 1.65 0 0 0 1.82.33H9a1.65 1.65 0 0 0 1-1.51V3a2 2 0 0 1 2-2 2 2 0 0 1 2 2v.09a1.65 1.65 0 0 0 1 1.51 1.65 1.65 0 0 0 1.82-.33l.06-.06a2 2 0 0 1 2.83 0 2 2 0 0 1 0 2.83l-.06.06a1.65 1.65 0 0 0-.33 1.82V9a1.65 1.65 0 0 0 1.51 1H21a2 2 0 0 1 2 2 2 2 0 0 1-2 2h-.09a1.65 1.65 0 0 0-1.51 1z\"><\/path><\/svg> Key Characteristics at a Glance<\/h3><ul><li>\u2713 <strong>Density:<\/strong> 2.69\u20132.70 g\/cm\u00b3<\/li><li>\u2713 <strong>Melting range:<\/strong> 610\u2013652\u00b0C<\/li><li>\u2713 <strong>Thermal conductivity:<\/strong> 175\u2013200 W\/m\u00b7K<\/li><li>\u2713 <strong>Modulus of elasticity:<\/strong> 67\u201370 GPa<\/li><li>\u2713 <strong>Typical tensile strength (T6):<\/strong> 230 MPa (some sources cite 195 MPa minimum per EN 755\u20112)<\/li><li>\u2713 <strong>Typical yield strength (T6):<\/strong> 200 MPa (160 MPa minimum per EN 755\u20112)<\/li><li>\u2713 <strong>Elongation (T6):<\/strong> 10\u201311%<\/li><li>\u2713 <strong>Hardness (T6):<\/strong> 74 HB<\/li><li>\u2713 <strong>Electrical conductivity (T6):<\/strong> 53% IACS<\/li><\/ul><\/div>\n\n\n<p class=\"wp-block-paragraph\"><em>Data compiled from Pandolfo Alluminio, MakeItFrom and AZoM \/ MatWeb.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Chemical Composition<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 6463 is a magnesium\u2011 and silicon\u2011rich alloy with <strong>strictly controlled iron and copper levels<\/strong> that distinguish it from 6063. The magnesium and silicon form magnesium\u2011silicide (Mg\u2082Si) precipitates during artificial ageing \u2013 the primary strengthening mechanism for the 6xxx series. The <strong>low iron<\/strong> prevents dulling inclusions, while the <strong>controlled copper<\/strong> enhances the alloy\u2019s response to chemical brightening and produces a transparent, colourless anodic film.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><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\">Aluminium (Al)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Remainder (approx. 97.9 \u2013 99.4)<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Silicon (Si)<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.20 \u2013 0.60<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Magnesium (Mg)<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.45 \u2013 0.90<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Iron (Fe)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264 0.15<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Copper (Cu)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264 0.20<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Manganese (Mn)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264 0.05<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Zinc (Zn)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264 0.05<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Others (Each)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264 0.05<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Others (Total)<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u2264 0.15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Sources: EN 573\u20113 \/ MakeItFrom \/ Pandolfo Alluminio<\/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\">The tighter chemistry window relative to 6063 is not accidental \u2013 it is the metallurgical foundation of the alloy\u2019s bright\u2011anodizing performance. Bright anodizing alloys require <strong>control of chemical composition to enhance response to chemical brightening and to result in anodic coatings that are essentially transparent<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"afb-block dont-miss-block\"><h3 class=\"afb-title\">Don&#039;t Miss<\/h3><a href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-6351-t6-structural-alloy.html\" class=\"dont-miss-link\"><div class=\"dont-miss-thumb\" role=\"img\" aria-label=\"Thumbnail\" style=\"background-image:url('https:\/\/aluminiummagazine.com\/mag\/wp-content\/uploads\/2026\/11\/aluminum-6351-t6-welded-marine-structural-extrusion.jpg'); background-size: cover; background-position: center; aspect-ratio: 220\/130;\"><\/div><div class=\"dont-miss-content\"><h4 class=\"dont-miss-title\"><strong>Aluminium 6351 T6: The High\u2011Strength Structural Alloy for Marine and Transport Applications<\/strong><\/h4><\/div><\/a><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Key Properties of Aluminium 6463<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u2728 Brilliant Anodized Finish \u2013 The Defining Advantage<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This is where Aluminium 6463 truly excels and why it exists. The alloy is specifically formulated to achieve a <strong>brilliant, reflective anodized surface<\/strong> that is unattainable with standard 6063. The reduced iron content minimises dulling second\u2011phase particles, while the controlled copper addition improves the specular reflectance of the bright\u2011dipped surface. After chemical brightening and anodizing, 6463 produces a <strong>clear, transparent anodic coating<\/strong> that preserves and enhances the metallic lustre beneath.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The alloy is widely used for <strong>bright dip anodizing<\/strong>, a process that demands tight control of extrusion surface quality. Surface defects such as streaks, die lines, pitting and back\u2011end defects can become visible after bright dip anodizing, so die design, billet quality and mill conditions must be carefully managed. When properly processed, 6463 delivers the <strong>mirror\u2011like finish<\/strong> required for premium architectural and automotive trim.<\/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\udcaa Medium Strength \u2013 Temper\u2011Dependent<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 6463 is described as a <strong>medium\u2011strength alloy<\/strong>. It is not intended for high\u2011load structural applications, but its mechanical properties are more than adequate for trim, framing and decorative components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Typical Mechanical Properties by Temper (Extruded Bar, EN 755\u20112):<\/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 class=\"has-text-align-center\" data-align=\"center\">Tensile Strength Rm (MPa)<\/th><th class=\"has-text-align-center\" data-align=\"center\">Yield Strength Rp0.2 (MPa)<\/th><th class=\"has-text-align-center\" data-align=\"center\">Elongation A%<\/th><th class=\"has-text-align-center\" data-align=\"center\">Hardness (HB)<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T4<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">125 min<\/td><td class=\"has-text-align-center\" data-align=\"center\">75 min<\/td><td class=\"has-text-align-center\" data-align=\"center\">14<\/td><td class=\"has-text-align-center\" data-align=\"center\">46<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T5<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">150 min<\/td><td class=\"has-text-align-center\" data-align=\"center\">110 min<\/td><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><td class=\"has-text-align-center\" data-align=\"center\">60<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T6<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">195 min (230 typical)<\/td><td class=\"has-text-align-center\" data-align=\"center\">160 min (200 typical)<\/td><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">74<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Source: Pandolfo Alluminio \/ EN 755\u20112; typical T6 values from MakeItFrom<\/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\">In the <strong>T6 temper<\/strong>, 6463 achieves approximately <strong>230 MPa ultimate tensile strength and 200 MPa yield strength<\/strong> with 11% elongation and 74 HB hardness \u2013 a practical balance for extruded profiles that must hold their shape while presenting a flawless surface. The <strong>T5 temper<\/strong> offers lower strength (150 MPa min) with better formability, while <strong>T4<\/strong> provides the highest ductility (14% elongation) for bending and forming operations prior to finishing.<\/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\">Aluminium 6463 offers <strong>good corrosion resistance<\/strong>, consistent with its 6xxx heritage. The anodic film formed during anodizing provides an additional protective barrier, and the alloy performs well in <strong>architectural, decorative and automotive exterior<\/strong> environments. Research on anodized 6463 in chloride solutions has shown that optimised anodizing conditions \u2013 such as sulfuric\u2011boric acid electrolytes at 2 A\/dm\u00b2 \u2013 produce even coatings with low corrosion current density, further enhancing durability in marine and construction exposures.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd27 Excellent Extrudability and Workability<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">One of 6463\u2019s practical strengths is its <strong>excellent extrudability<\/strong>. The alloy is suitable for <strong>complex profiles<\/strong>, enabling designers to create intricate architectural shapes, heat\u2011sink\u2011style sections and thin\u2011wall decorative extrusions that would be difficult or impossible in higher\u2011strength alloys. <strong>Weldability is very good<\/strong> across all tempers, and <strong>polishability is rated very good<\/strong>. <strong>Machinability is good<\/strong>, and <strong>cold formability is medium<\/strong> \u2013 adequate for moderate bending and forming but not intended for severe cold deformation. The alloy is <strong>not recommended for forging or rolling<\/strong>; extrusion is its primary and essentially exclusive forming route.<\/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\udd25 Heat Treatment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">As a heat\u2011treatable alloy, 6463 can be strengthened through solution treatment and artificial ageing. The common tempers are:<\/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>Description<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T4<\/strong><\/td><td>Solution heat treated and naturally aged \u2013 highest ductility, lowest strength<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T5<\/strong><\/td><td>Cooled from hot extrusion and artificially aged \u2013 good balance for extruded profiles<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>T6<\/strong><\/td><td>Solution heat treated and artificially aged \u2013 highest strength and hardness<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Source: Pandolfo Alluminio \/ EN 515<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The T6 temper is achieved through solution heat treatment followed by artificial ageing until standard mechanical property requirements are met. For extruded profiles, <strong>in\u2011die quenching<\/strong> can achieve T6\u2011level properties in the T6 D condition for sections up to 50 mm.<\/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<h2 class=\"wp-block-heading\"><strong>Applications of Aluminium 6463<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 6463 is a <strong>specialist aesthetic alloy<\/strong> whose brilliant anodized finish, excellent extrudability and medium strength make it the material of choice for applications where <strong>appearance is as important as performance<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udfdb\ufe0f Architectural and Decorative Profiles \u2013 The Core Application<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">6463 is primarily used in <strong>extruded architectural and trim sections<\/strong>. Typical applications include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Window and door frames<\/strong> \u2013 bright anodized profiles for premium residential and commercial buildings<\/li>\n\n\n\n<li><strong>Curtain wall and fa\u00e7ade trim<\/strong> \u2013 reflective decorative elements<\/li>\n\n\n\n<li><strong>Furniture and industrial design<\/strong> \u2013 exposed framing, edge trim and decorative components<\/li>\n\n\n\n<li><strong>Interior design features<\/strong> \u2013 bright anodized profiles for retail, hospitality and residential interiors<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The alloy\u2019s ability to hold a mirror\u2011like finish after anodizing makes it the preferred choice for <strong>bright trim<\/strong> where 6063 would appear dull or hazy.<\/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\ude97 Automotive Trim and Brightwork<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">6463 is used for <strong>automotive bright trim<\/strong>, including <strong>bumper applications<\/strong> and decorative exterior mouldings. The alloy is classified as a <strong>medium\u2011strength bright anodizing extrusion alloy<\/strong> specifically suited to bumper and trim applications where a reflective, corrosion\u2011resistant surface is required. Its good corrosion resistance and ability to accept a clear anodic coating make it suitable for exterior automotive use, though anti\u2011glare requirements may call for lower\u2011gloss finishes in some trim applications.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83e\ude9e Reflective and Lighting Components<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The alloy\u2019s specular surface quality makes it suitable for <strong>reflector applications<\/strong> and other components where controlled light reflection is required. Bright anodized 6463 profiles can serve as decorative reflectors, light\u2011fixture trim and optical framing in architectural and consumer lighting products.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83d\udd29 General Extruded Profiles<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Beyond aesthetics, 6463 is used for <strong>general extruded profiles<\/strong> where a combination of <strong>good corrosion resistance, very good weldability and excellent surface finish<\/strong> is required. Its very good polishability and good machinability make it practical for secondary operations on decorative parts.<\/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<h2 class=\"wp-block-heading\"><strong>Fabrication &amp; Workability \u2013 Quick Guide<\/strong><\/h2>\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>Recommendation<\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Extrusion<\/strong><\/td><td>Excellent \u2013 suitable for complex profiles and thin\u2011wall sections; the primary forming route<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Welding<\/strong><\/td><td>Very good across T4, T5 and T6 tempers<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Machining<\/strong><\/td><td>Good \u2013 suitable for secondary operations on extruded profiles<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Polishing<\/strong><\/td><td>Very good \u2013 a key enabler of the bright anodized finish<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Cold forming<\/strong><\/td><td>Medium \u2013 adequate for moderate bending but not severe deformation<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Heat treatment<\/strong><\/td><td>T4, T5 and T6 tempers available; T6 via solution treatment and artificial ageing<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Anodizing<\/strong><\/td><td>The defining process \u2013 bright dip anodizing produces a clear, reflective finish<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>Forging \/ rolling<\/strong><\/td><td>Not typical \u2013 the alloy is generally extrusion\u2011only<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"afb-block pros-cons-block\"><div class=\"pros-section\"><h4 class=\"afb-subtitle\"><svg class=\"afb-icon\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M14 9V5a3 3 0 0 0-3-3l-4 9v11h11.28a2 2 0 0 0 2-1.7l1.38-9a2 2 0 0 0-2-2.3zM7 22H4a2 2 0 0 1-2-2v-7a2 2 0 0 1 2-2h3\"><\/path><\/svg> WHY CHOOSE ALUMINIUM 6463?<\/h4><ul><li class=\"pro-item\">\u2713 Brilliant anodized finish &#8211; the primary bright extrusion alloy of the 6xxx series<\/li><li class=\"pro-item\">\u2713 Superior surface aesthetics &#8211; reduced iron and controlled copper deliver specular reflectance unattainable with 6063<\/li><li class=\"pro-item\">\u2713 Excellent extrudability &#8211; suitable for complex and thin-wall profiles<\/li><li class=\"pro-item\">\u2713 Very good weldability &#8211; across T4, T5 and T6 tempers<\/li><li class=\"pro-item\">\u2713 Very good polishability &#8211; supports premium decorative finishing<\/li><li class=\"pro-item\">\u2713 Good corrosion resistance &#8211; suitable for architectural and automotive exterior use<\/li><li class=\"pro-item\">\u2713 Good machinability &#8211; practical for secondary operations<\/li><li class=\"pro-item\">\u2713 Medium strength &#8211; adequate for trim, framing and decorative components (230 MPa UTS in T6)<\/li><li class=\"pro-item\">\u2713 Transparent anodic film &#8211; preserves and enhances metallic lustre<\/li><\/ul><\/div><div class=\"cons-section\"><h4 class=\"afb-subtitle\"><svg class=\"afb-icon\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M10 15v4a3 3 0 0 0 3 3l4-9V2H5.72a2 2 0 0 0-2 1.7l-1.38 9a2 2 0 0 0 2 2.3zm7-13h2a2 2 0 0 1 2 2v7a2 2 0 0 1-2 2h-2\"><\/path><\/svg> CONS<\/h4><ul><li class=\"con-item\">\u2715 Not a structural alloy &#8211; medium strength only; not a substitute for 6061, 6082 or 7xxx alloys in load-bearing applications<\/li><li class=\"con-item\">\u2715 Extrusion-only &#8211; generally not formed by forging or rolling<\/li><li class=\"con-item\">\u2715 Tight chemistry control required &#8211; the bright-anodizing performance depends on strict iron and copper limits<\/li><li class=\"con-item\">\u2715 Surface defects visible after bright dip &#8211; die lines, streaks and pitting become apparent after anodizing, demanding careful process control<\/li><li class=\"con-item\">\u2715 Higher cost than 6063 &#8211; the refined chemistry and specialised processing command a premium<\/li><li class=\"con-item\">\u2715 Limited cold formability &#8211; medium rating restricts severe bending or forming operations<\/li><\/ul><\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Aluminium 6463 (Aluminum 6463) is the <strong>bright\u2011anodizing specialist of the 6xxx series<\/strong> \u2013 an alloy that takes the familiar Mg\u2011Si foundation of 6063 and refines it for <strong>optical performance<\/strong>. By reducing iron and controlling copper, 6463 achieves a <strong>brilliant, mirror\u2011like anodized finish<\/strong> that standard 6063 cannot match, while retaining excellent extrudability, very good weldability and good corrosion resistance. It is a <strong>medium\u2011strength alloy<\/strong> (approximately 230 MPa UTS in T6), and it is not intended for structural loads \u2013 its purpose is to look exceptional while performing reliably in decorative and trim applications.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From bright anodized window frames and curtain wall trim to automotive bumpers, furniture framing and reflective lighting components, Aluminium 6463 provides the <strong>surface quality, extrudability and finishing response<\/strong> that premium aesthetic applications demand. It is not a general\u2011purpose alloy; it is a <strong>finishing alloy<\/strong> \u2013 the choice for designers and engineers who need aluminium that performs beautifully as well as functionally.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If your application requires a <strong>brilliant anodized finish on an extruded aluminium profile<\/strong> with good corrosion resistance and medium strength, Aluminium 6463 is the proven, trusted solution.<\/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<p class=\"wp-block-paragraph\"><\/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 6463 \u2013 also known as Aluminum 6463 \u2013 is a heat\u2011treatable aluminium\u2011magnesium\u2011silicon alloy belonging to the 6000 series. While it is chemically a close relative of 6063, 6463 is not a general\u2011purpose structural alloy. It was developed and is specified for one defining purpose: producing a brilliant, mirror\u2011like anodized finish. Through tightly controlled chemistry &#8230; <a title=\"Aluminium 6463\" class=\"read-more\" href=\"https:\/\/aluminiummagazine.com\/mag\/aluminium\/aluminium-6463.html\" aria-label=\"Read more about Aluminium 6463\">Read more<\/a><\/p>\n","protected":false},"author":12,"featured_media":19692,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[721],"tags":[],"class_list":["post-19691","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aluminium"],"_links":{"self":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/19691","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=19691"}],"version-history":[{"count":1,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/19691\/revisions"}],"predecessor-version":[{"id":19693,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/posts\/19691\/revisions\/19693"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media\/19692"}],"wp:attachment":[{"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/media?parent=19691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/categories?post=19691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminiummagazine.com\/mag\/wp-json\/wp\/v2\/tags?post=19691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}