{"id":8804,"date":"2025-06-15T02:00:13","date_gmt":"2025-06-15T02:00:13","guid":{"rendered":"https:\/\/premiumalu.com\/discover-7003-aluminum-key-facts-you-need-to-know\/"},"modified":"2026-10-08T02:13:50","modified_gmt":"2026-10-08T02:13:50","slug":"7003-alumi%cc%87nyumu-kesfedi%cc%87n-bi%cc%87lmeni%cc%87z-gereken-temel-gercekler","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/tr\/discover-7003-aluminum-key-facts-you-need-to-know\/","title":{"rendered":"7003 Al\u00fcminyum Ala\u015f\u0131m\u0131: \u00d6zellikler, Temperler ve Uygulamalar"},"content":{"rendered":"<p class=\"wp-block-paragraph\">7003 is a weldable 7xxx extrusion alloy. It was developed so that a welded joint recovers most of its strength during service aging instead of being written off in the heat-affected zone \u2014 the problem that keeps 7075 out of welded structure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It gets there by giving up copper. Copper is what lifts 7075 and 7001 to their peak strength, and it is also what makes them unweldable and prone to stress-corrosion cracking; 7003 caps it at 0.20% and leans on zinc, magnesium and zirconium instead. Its strength class sits below 7075&#8217;s and above 6061&#8217;s \u2014 the point of the trade is that the joint survives.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is 7003 Aluminum Alloy?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">7003 is a heat-treatable alloy in the 7000 series. Zinc is the main alloying element and magnesium forms the MgZn\u2082 strengthening phase, with copper held low enough that the alloy can be welded by conventional processes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zirconium is the defining addition. At 0.05\u20130.25% it raises the recrystallisation temperature and keeps the grain structure fine through extrusion, which suppresses hot cracking in the weld pool and helps extruded sections hold strength after aging. No copper plus a controlled grain structure is what separates 7003 from the copper-bearing 7xxx grades.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Element<\/td><td>Aral\u0131k (% a\u011f\u0131rl\u0131k\u00e7a)<\/td><td>Rol<\/td><\/tr><tr><td>\u00c7inko (Zn)<\/td><td>5.0\u20136.5<\/td><td>Birincil g\u00fc\u00e7lendirici element<\/td><\/tr><tr><td>Magnezyum (Mg)<\/td><td>0.5\u20131.0<\/td><td>Forms the MgZn\u2082 strengthening phase<\/td><\/tr><tr><td>Zirkonyum (Zr)<\/td><td>0.05\u20130.25<\/td><td>Grain refinement; resists weld hot cracking<\/td><\/tr><tr><td>Krom (Cr)<\/td><td>\u22640,20<\/td><td>Tane yap\u0131s\u0131 kontrol\u00fc<\/td><\/tr><tr><td>Manganez (Mn)<\/td><td>\u22640,30<\/td><td>Trace control<\/td><\/tr><tr><td>Bak\u0131r (Cu)<\/td><td>\u22640,20<\/td><td>Kept low for weldability and corrosion<\/td><\/tr><tr><td>Demir (Fe)<\/td><td>\u22640.35<\/td><td>Safs\u0131zl\u0131k limiti<\/td><\/tr><tr><td>Silisyum (Si)<\/td><td>\u22640,30<\/td><td>Safs\u0131zl\u0131k limiti<\/td><\/tr><tr><td>Titanyum (Ti)<\/td><td>\u22640,20<\/td><td>Tane inceltici<\/td><\/tr><tr><td>Di\u011ferleri (her biri \/ toplam)<\/td><td>\u22640,05 \/ \u22640,15<\/td><td>Eser miktar limitleri<\/td><\/tr><tr><td>Al\u00fcminyum (Al)<\/td><td>Denge<\/td><td>Ana metal<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ranges follow EN 573-3 and the AA registration \u2014 EN AW-7003, chemical designation AlZn6Mg0.8Zr, UNS A97003. Density is about 2.78 g\/cm\u00b3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One point about form matters before anything else: 7003 is an extrusion alloy first. Bar, tube, and profile are the standard product range under ASTM B221 and EN 755-2, and it is not a routine flat-rolled designation. Plate and sheet come under a different specification, so name the form and its governing standard on the enquiry \u2014 and where a section or size falls outside the standard range, it is produced to drawing.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Temperler ve Tipik Mekanik \u00d6zellikler<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-t5-vs-t6.webp\" alt=\"7003-t5-vs-t6\" class=\"wp-image-10701\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-t5-vs-t6.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-t5-vs-t6-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-t5-vs-t6-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-t5-vs-t6-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-t5-vs-t6-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Temper changes the delivered part more than the alloy choice does.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T5<\/strong> \u2014 cooled from the extrusion press and then artificially aged. This is the usual and most economical temper for 7003 profiles.<\/li>\n\n\n\n<li><strong>T6<\/strong> \u2014 solution heat treated, quenched, and artificially aged. One extra process step buys higher strength; press quenching can reach it on suitable sections.<\/li>\n\n\n\n<li><strong>T651<\/strong> \u2014 aged and then stress-relieved by stretching. It sits on the ASTM side for parts that will be machined to tight tolerances.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Temper<\/td><td>\u00c7ekme, Rm (MPa)<\/td><td>Akma, Rp0,2 (MPa)<\/td><td>Uzama (%)<\/td><td>Temel<\/td><\/tr><tr><td>T5<\/td><td>~350 typical \/ 310 min<\/td><td>~300 typical \/ 260 min<\/td><td>10 (A50)<\/td><td>EN 755-2 minimums; producer typicals<\/td><\/tr><tr><td>T6<\/td><td>~370\u2013390<\/td><td>~300\u2013320<\/td><td>8\u201312<\/td><td>Producer data; confirm against the governing standard<\/td><\/tr><tr><td>T651<\/td><td>~370\u2013390<\/td><td>~300\u2013320<\/td><td>8\u201312<\/td><td>Producer data; ASTM-side temper<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Read the minimum column for design and the typical column for planning. EN 755-2 sets the T5 floor at 260 MPa proof and 310 MPa tensile, tabulated by wall-thickness class, and typical extruded material tests well above that floor. The figures a buyer can write into a drawing are the minimums for the applicable thickness class, confirmed on the MTC.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7003 ile 6061, 7005 ve 7075 kar\u015f\u0131la\u015ft\u0131rmas\u0131<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-joining-method.webp\" alt=\"7003-joining-method\" class=\"wp-image-10703\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-joining-method.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-joining-method-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-joining-method-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-joining-method-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-joining-method-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Ala\u015f\u0131m \/ temper<\/td><td>\u00c7ekme, Rm (MPa)<\/td><td>Akma, Rp0,2 (MPa)<\/td><td>Kaynaklanabilirlik<\/td><td>Korozyon<\/td><td>En uygun kullan\u0131m<\/td><\/tr><tr><td><a href=\"https:\/\/premiumalu.com\/tr\/6061-aluminyum-icin-eksiksiz-kilavuz\/\">6061-T6<\/a><\/td><td>~310<\/td><td>~276<\/td><td>M\u00fckemmel<\/td><td>\u0130yi<\/td><td>General structural work; easy forming and anodising<\/td><\/tr><tr><td>7003-T5<\/td><td>~350<\/td><td>~300<\/td><td>Good; re-ages after welding<\/td><td>Moderate; stress-corrosion sensitive<\/td><td>Extruded welded frames and profiles<\/td><\/tr><tr><td><a href=\"https:\/\/premiumalu.com\/tr\/7005-aluminyum-alasiminda-ustalasmak-icin-kapsamli-bir-kilavuz\/\">7005-T5<\/a><\/td><td>~345<\/td><td>~290<\/td><td>M\u00fckemmel<\/td><td>Orta d\u00fczeyde<\/td><td>Kaynakl\u0131 y\u00fcksek mukavemetli \u00e7er\u00e7eveler<\/td><\/tr><tr><td><a href=\"https:\/\/premiumalu.com\/tr\/7075-t651-alumi%cc%87nyum-alasiminda-uzmanlasmak-i%cc%87ci%cc%87n-kapsamli-bi%cc%87r-rehber\/\">7075-T6<\/a><\/td><td>~572<\/td><td>~503<\/td><td>Zay\u0131f<\/td><td>S\u0131n\u0131rl\u0131<\/td><td>Aerospace and other peak-strength parts<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ask one question first: will the part be welded? If it will, 7075 leaves the table because it is not fusion weldable in practice, and the choice narrows to 7003, 7005, or 6061.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Between the two 7000-series options, typical T5 yield values land within about 15 MPa of each other, so the tie-break is process rather than strength. 7003 extrudes thin, complex profiles more easily and holds grain structure better there; 7005 carries manganese and is the more common call where a welded frame needs the highest joint strength. If the part is machined and never welded, 6061-T6 stays cheaper, forms more easily, and stocks far wider.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Working With 7003<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-welding-and-aging.webp\" alt=\"7003-welding-and-aging\" class=\"wp-image-10702\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-welding-and-aging.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-welding-and-aging-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-welding-and-aging-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-welding-and-aging-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-welding-and-aging-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Kaynak<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7003 welds with 5xxx filler wire. ER5356 (EN ISO 18273 AlMg5Cr(A)) is the default, ER5183 (AlMg4.5Mn0.7(A)) suits joints that need more as-welded strength, and ER5556 (AlMg4.5MnZr) appears on heavier structural work. Copper is held low precisely so these fillers behave.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Welding still softens the heat-affected zone, but 7003 recovers more of it than a copper-bearing 7xxx grade does. Published alloy data for 7003 reports joints returning to up to about 90% of parent properties once the weldment is aged \u2014 by natural aging over time or by a supplementary artificial age. Design the joint on those aged, as-welded values, not on the parent T6 column.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tala\u015fl\u0131 \u0130malat<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7003 cuts harder than 6061, so expect more tool wear and plan on sharp, high-rake tooling and a rigid setup. T5 and T6 take a cleaner finish than the softer conditions. Residual stress in extruded stock can show up as movement during machining or later during welding, so keep stock removal even across the section. These tempers are also notch-sensitive, which means form the part before it is aged and heat treat afterwards \u2014 not the other way round.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Corrosion and Stress-Corrosion Limits<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">General atmospheric corrosion resistance is good for a 7xxx grade: well ahead of the copper-bearing 7075, behind the 6xxx family. Marine service is the weak point, and 7003 alloy data rates marine resistance poorly, so bare saltwater or chloride immersion is not its job. Anodising, painting, or a protective film covers most outdoor and coastal exposure.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stress-corrosion cracking needs separate attention. 7003 is susceptible to SCC under sustained tensile stress in a moist or chloride-bearing environment, so treat it as a design limit rather than an edge case: keep sustained stress inside the range your supplier&#8217;s data allows for the temper and section, and protect the surface wherever moisture is present.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Service Temperature<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Treat 7003 as a room-temperature structural alloy. Like every precipitation-hardened grade it over-ages and loses strength as service temperature rises, so check any hot application against temper-specific design data instead of assuming room-temperature values hold.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Uygulamalar<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-structural-applications.webp\" alt=\"7003-structural-applications\" class=\"wp-image-10704\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-structural-applications.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-structural-applications-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-structural-applications-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-structural-applications-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-structural-applications-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Scaffolding, staging, and access-platform components<\/li>\n\n\n\n<li>Mobile cranes, lifts, and other welded load-bearing structures<\/li>\n\n\n\n<li>Rail and metro car bodies and structural members<\/li>\n\n\n\n<li>Bicycle and motorcycle frames, and sports equipment<\/li>\n\n\n\n<li>Air cargo containers, truck and trailer frames<\/li>\n\n\n\n<li>EV battery-pack frames and light structural extrusions<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Uygun\/Uygun De\u011fil S\u0131n\u0131rlar\u0131<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-selection-limits.webp\" alt=\"7003-selection-limits\" class=\"wp-image-10705\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-selection-limits.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-selection-limits-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-selection-limits-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-selection-limits-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/7003-selection-limits-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Go \u2014 specify 7003 when:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The part needs more strength than 6061-T6 delivers and it will be welded, because 7003 re-ages toward parent values where 7075 cannot be welded at all.<\/li>\n\n\n\n<li>The part is an extruded profile or tube and the section is thin or complex, where 7003&#8217;s extrusion behaviour pays off.<\/li>\n\n\n\n<li>Service is indoor, or the surface will be anodised, painted, or filmed.<\/li>\n\n\n\n<li>Sustained stress stays inside the SCC limits your supplier&#8217;s data allows for the temper and section.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Gitme \u2014 \u015fu durumlarda ba\u015fka yere bak\u0131n:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Peak aerospace strength above roughly 500 MPa yield is required. That is 7075 or 7055 territory.<\/li>\n\n\n\n<li>Bare saltwater or chloride immersion is expected with no coating. Use 5083 or a 6xxx grade.<\/li>\n\n\n\n<li>The part is machined and never welded. 6061-T6 is cheaper, forms more easily, and stocks more widely.<\/li>\n\n\n\n<li>Heavy cold forming after aging is planned. Form the part first, then heat treat.<\/li>\n\n\n\n<li>A drawing calls for 7003 as rolled plate under a flat-rolled standard. Confirm the form and its specification before quoting.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Tedarik Notlar\u0131: Sipari\u015f Vermeden \u00d6nce Neyi Do\u011frulamal\u0131s\u0131n\u0131z<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">7003 is an extrusion alloy first. Bar, tube, and profile to ASTM B221 or EN 755-2 are the standard range, and flat-rolled 7003 sits under a different specification \u2014 so name the form and its governing standard on the enquiry. Shape is not the constraint: non-standard cross-sections, sizes, and product shapes are produced to your drawing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sorgudaki d\u00f6rt sat\u0131r i\u015fin \u00e7o\u011funu yapar:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Ge\u00e7erli standart<\/strong> \u2014 ASTM B221 or EN 755-2.<\/li>\n\n\n\n<li><strong>Temper<\/strong> \u2014 T5, T6, or T651, plus the aging route for any welded assembly.<\/li>\n\n\n\n<li><strong>Governing wall thickness<\/strong> \u2014 minimum mechanical values in EN 755-2 are tabulated by thickness class.<\/li>\n\n\n\n<li><strong>Dok\u00fcmantasyon seviyesi<\/strong> \u2014 MTC as standard; EN 10204 3.1 or SGS reports where the project requires independent verification.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">On documents, the MTC that ships with every order carries the chemistry and mechanical results for that lot. Certificate levels are worth getting right: EN 10204 3.1 is signed by the manufacturer&#8217;s own authorised inspection representative, while 3.2 adds an independent third party such as a customer representative or a body like T\u00dcV, BV, SGS, or DNV.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sonu\u00e7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/premiumalu.com\/tr\/urun\/7003-aluminyum-alasim\/\" data-type=\"product\" data-id=\"8667\">7003 al\u00fcminyum<\/a> gives you most of the 7xxx strength advantage in a form that extrudes cleanly and can actually be welded, but the trade-offs are real: corrosion resistance is moderate, stress-corrosion cracking is a genuine design limit, and flat-rolled forms sit under a different specification from the extrusion range.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We supply 7003 in extruded profile, bar, and tube, and produce custom shapes, sizes, and tempers to your drawing through low-MOQ production with lead times of 10\u201360 days. Every order ships with an MTC.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/premiumalu.com\/tr\/iletisim\/\" data-type=\"page\" data-id=\"350\">Teknik inceleme ve fiyat teklifi i\u00e7in bize \u00e7izimi,<\/a> with the temper and the weld route for a form, temper, and availability check.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">S\u0131k\u00e7a Sorulan Sorular<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What is the minimum order quantity and lead time for 7003?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Standard tempers and sizes ship from stock. Non-standard tempers and custom dimensions run as low-MOQ production, typically 10\u201360 days, driven by alloy, size and processing. Send the drawing and the quantity so both can be confirmed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What documents come with a 7003 order?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A mill test certificate listing the chemistry and mechanical results for the lot, included with every order. SGS chemical, mechanical or ultrasonic reports are available on request at extra cost, and EN 10204 3.2 adds an independent countersignature.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can you supply 7003 cut to length or machined to drawing?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Extruded bar, tube and profile are cut to finished lengths, and in-house CNC machining covers drilled, tapped and milled features. Send the drawing with the finishes and tolerances so the material and the processing can be quoted together.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can 7003 replace 6061 in a welded frame?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It can, and it buys strength rather than saving cost. 7003 welds with a 5xxx filler and re-ages toward parent values afterwards, where 6061 gives up heat-affected-zone strength permanently. Where the frame does not need the extra strength, 6061 stays the cheaper route.<\/p>","protected":false},"excerpt":{"rendered":"<p>7003 is a weldable 7xxx extrusion alloy. It was developed so that a welded joint recovers most of its strength during service aging instead of being written off in the heat-affected zone \u2014 the problem that keeps 7075 out of welded structure. It gets there by giving up copper. Copper is what lifts 7075 and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10700,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"7003 Aluminum Alloy: Properties, Tempers and Weldability","_seopress_titles_desc":"7003 aluminum is the weldable, extrudable 7xxx grade: Zn-Mg-Zr chemistry, EN 755-2 minimums, typical T5 and T6 data, filler choice, corrosion limits and sourcing notes.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_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":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[179],"tags":[],"class_list":["post-8804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-7000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/posts\/8804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/comments?post=8804"}],"version-history":[{"count":2,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/posts\/8804\/revisions"}],"predecessor-version":[{"id":10706,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/posts\/8804\/revisions\/10706"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/media\/10700"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/media?parent=8804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/categories?post=8804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/tr\/wp-json\/wp\/v2\/tags?post=8804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}