{"id":10795,"date":"2026-11-03T07:36:10","date_gmt":"2026-11-03T07:36:10","guid":{"rendered":"https:\/\/premiumalu.com\/?p=10795"},"modified":"2026-11-03T07:36:13","modified_gmt":"2026-11-03T07:36:13","slug":"6026-t9-aluminum-guide","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/pl\/6026-t9-aluminum-guide\/","title":{"rendered":"6026 T9 Aluminium: Stan utwardzenia, w\u0142a\u015bciwo\u015bci i por\u00f3wnanie z T6, T8"},"content":{"rendered":"<p class=\"wp-block-paragraph\">6026-T9 to stan, kt\u00f3ry nale\u017cy okre\u015bli\u0107, gdy cz\u0119\u015b\u0107 obrabiana mechanicznie musi stawia\u0107 op\u00f3r trwa\u0142emu odkszta\u0142ceniu w takim zakresie, na jaki pozwala ten stop, i nigdy p\u00f3\u017aniej nie b\u0119dzie zginana. Odkszta\u0142cenie plastyczne na zimno pr\u0119ta po starzeniu podnosi granic\u0119 plastyczno\u015bci Rp0,2 do 330 MPa, o 30 MPa powy\u017cej T6, i pozostawia wyd\u0142u\u017cenie A do dyspozycji na poziomie 4% zamiast 8%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Wytrzyma\u0142o\u015b\u0107 to tylko po\u0142owa decyzji. Sekwencja produkcyjna ustala r\u00f3wnie\u017c, w jakiej formie ka\u017cdy stan jest dost\u0119pny, a stan na formie, kt\u00f3rej nie mo\u017cemy wytwarza\u0107, nie jest specyfikacj\u0105, kt\u00f3r\u0105 mo\u017cna zam\u00f3wi\u0107.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Czym jest 6026<\/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\/11\/cover-6026-t9.webp\" alt=\"cover-6026-t9\" class=\"wp-image-10793\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/cover-6026-t9.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/cover-6026-t9-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/cover-6026-t9-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/cover-6026-t9-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/cover-6026-t9-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">6026 to stop Al\u2013Mg\u2013Si z serii 6xxx, kt\u00f3ry zyskuje wytrzyma\u0142o\u015b\u0107 dzi\u0119ki wydzielaniu Mg\u2082Si podczas sztucznego starzenia. Jego cech\u0105 definiuj\u0105c\u0105 jest dodatek u\u0142atwiaj\u0105cy obr\u00f3bk\u0119 skrawaniem: bizmut w ilo\u015bci 0,50\u20131,50% \u0142amie wi\u00f3r, podczas gdy o\u0142\u00f3w jest ograniczony do maks. 0,40%, a nie stanowi mechanizmu. Zachowuje to odporno\u015b\u0107 korozyjn\u0105 i reakcj\u0119 na anodowanie zwyk\u0142ego stopu 6xxx, dodaj\u0105c jednocze\u015bnie kontrol\u0119 wi\u00f3ra typow\u0105 dla gatunku \u0142atwo skrawalnego \u2014 rol\u0119, kt\u00f3r\u0105 pe\u0142ni\u0142y 6262 i 6012, z bizmutem odpowiadaj\u0105cym za \u0142amanie wi\u00f3ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kompromis polega na tym, gdzie situuje si\u0119 stop, a nie na tym, co potrafi. Bizmut nie podnosi wytrzyma\u0142o\u015bci, wi\u0119c 6026 jest przede wszystkim gatunkiem do obr\u00f3bki skrawaniem, a dopiero w drugiej kolejno\u015bci gatunkiem konstrukcyjnym; tam, gdzie decyduje maksymalna wytrzyma\u0142o\u015b\u0107, 6082 lub 7075 radz\u0105 sobie lepiej. O tym, co decyduje o cz\u0119\u015bci z 6026 w praktyce, decyduje stan, poniewa\u017c rozrzut mi\u0119dzy T6, T8, T9 i T6510\/T6511 wynosi od 300 do 330 MPa w granicy plastyczno\u015bci i od 8% do 4% w wyd\u0142u\u017ceniu \u2014 wystarczaj\u0105co szeroko, by zdecydowa\u0107, czy cz\u0119\u015b\u0107 w og\u00f3le mo\u017cna formowa\u0107.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sk\u0142ad chemiczny (EN 573-3)<\/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\/11\/How-the-T-Tempers-Are-Produced.webp\" alt=\"Jak produkowane s\u0105 stany T\" class=\"wp-image-10794\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Bizmut jest dodatkiem zamierzonym; cyna i o\u0142\u00f3w znajduj\u0105 si\u0119 na pu\u0142apach zanieczyszcze\u0144. To rozr\u00f3\u017cnienie ma znaczenie przy czytaniu atestu hutniczego, poniewa\u017c wysoka zawarto\u015b\u0107 cyny jest sygna\u0142em zanieczyszczenia, a nie korzy\u015bci\u0105 w postaci \u0142atwej skrawalno\u015bci.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Element<\/th><th>6026 (EN 573-3, % mas.)<\/th><th>Co robi<\/th><\/tr><\/thead><tbody><tr><td>Si<\/td><td>0.60\u20131.40<\/td><td>Tworzy Mg\u2082Si z Mg \u2014 \u017ar\u00f3d\u0142o wytrzyma\u0142o\u015bci<\/td><\/tr><tr><td>Fe<\/td><td>0,70 maks.<\/td><td>Zanieczyszczenie; wp\u0142ywa na wyko\u0144czenie powierzchni i ci\u0105gliwo\u015b\u0107<\/td><\/tr><tr><td>Cu<\/td><td>0.20-0.50<\/td><td>Podnosi wytrzyma\u0142o\u015b\u0107 i utwardza wydzielenie<\/td><\/tr><tr><td>Mn<\/td><td>0.20\u20131.00<\/td><td>Kontroluje struktur\u0119 ziarna i rekrystalizacj\u0119<\/td><\/tr><tr><td>Mg<\/td><td>0.60\u20131.20<\/td><td>R\u00f3wnowa\u017cy si\u0119 z Si w Mg\u2082Si<\/td><\/tr><tr><td>Cr<\/td><td>maks. 0,30<\/td><td>Zanieczyszczenie w tym gatunku<\/td><\/tr><tr><td>Zn<\/td><td>maks. 0,30<\/td><td>Zanieczyszczenie<\/td><\/tr><tr><td>Ti<\/td><td>0,20 maks.<\/td><td>Rafinator ziarna<\/td><\/tr><tr><td>Bi<\/td><td>0.50\u20131.50<\/td><td>Dodatek u\u0142atwiaj\u0105cy obr\u00f3bk\u0119 skrawaniem \u2014 \u0142amie wi\u00f3r<\/td><\/tr><tr><td>Pb<\/td><td>maks. 0,40<\/td><td>Pozosta\u0142o\u015b\u0107; pu\u0142ap dopuszczany przez wy\u0142\u0105czenia ELV i RoHS<\/td><\/tr><tr><td>Sn<\/td><td>0.05 max<\/td><td>Pu\u0142ap zanieczyszczenia, nie dodatek<\/td><\/tr><tr><td>Inne<\/td><td>Maks. 0,05 ka\u017cdy, maks. 0,15 \u0142\u0105cznie<\/td><td>\u2014<\/td><\/tr><tr><td>Al<\/td><td>R\u00f3wnowaga<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Sprawd\u017a trzy linie na atestacie, zanim zaakceptujesz wytop: Bi w zakresie 0,50\u20131,50%, Sn na poziomie 0,05% lub poni\u017cej oraz Pb na poziomie 0,40% lub poni\u017cej. Wytop z Bi poni\u017cej 0,50% obrabia si\u0119 d\u0142ugim i ci\u0105gliwym wi\u00f3rem; wytop z Sn powy\u017cej 0,05% sygnalizuje zanieczyszczenie z\u0142omem, a nie zmian\u0119 konstrukcyjn\u0105.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak produkowane s\u0105 stany T<\/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\/11\/How-the-T-Tempers-Are-Produced.webp\" alt=\"Jak produkowane s\u0105 stany T\" class=\"wp-image-10794\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/How-the-T-Tempers-Are-Produced-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ka\u017cdy stan utwardzany wydzieleniowo z serii 6xxx zaczyna si\u0119 tak samo: wlewek jest poddawany obr\u00f3bce cieplnej roztworowej w celu rozpuszczenia pierwiastk\u00f3w stopowych, hartowany w celu uwi\u0119zienia ich w przesyconym roztworze, a nast\u0119pnie starzony, aby wydzieli\u0142y si\u0119 jako drobne cz\u0105stki. Przyrostek po T rejestruje, co dzieje si\u0119 wok\u00f3\u0142 tej sekwencji podstawowej \u2014 a kolejno\u015b\u0107 odkszta\u0142cenia plastycznego na zimno wzgl\u0119dem starzenia jest tym, co odr\u00f3\u017cnia T8 od T9.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>T6<\/strong> \u2014 obr\u00f3bka cieplna roztworowa, nast\u0119pnie sztuczne starzenie. Bez odkszta\u0142cenia plastycznego na zimno.<\/li>\n\n\n\n<li><strong>T8<\/strong> \u2014 obr\u00f3bka cieplna roztworowa, odkszta\u0142cenie plastyczne na zimno, nast\u0119pnie sztuczne starzenie. Odkszta\u0142cenie plastyczne na zimno nast\u0119puje przed starzeniem.<\/li>\n\n\n\n<li><strong>T9<\/strong> \u2014 obr\u00f3bka cieplna roztworowa, sztuczne starzenie, nast\u0119pnie odkszta\u0142cenie plastyczne na zimno. Odkszta\u0142cenie plastyczne na zimno jest operacj\u0105 ko\u0144cow\u0105.<\/li>\n\n\n\n<li><strong>T6510<\/strong> \u2014 T6, a nast\u0119pnie usuni\u0119cie napr\u0119\u017ce\u0144 przez rozci\u0105ganie, trwa\u0142e odkszta\u0142cenie 1\u20133% na pr\u0119tach okr\u0105g\u0142ych, pr\u0119tach, profilach i rurach (0,5\u20133% na rurach ci\u0105gnionych), bez dalszego prostowania po rozci\u0105ganiu.<\/li>\n\n\n\n<li><strong>T6511<\/strong> \u2014 to samo co T6510, z wyj\u0105tkiem tego, \u017ce lekkie prostowanie po rozci\u0105ganiu jest dozwolone w celu spe\u0142nienia tolerancji wymiarowych.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">T9 jest jedynym z pi\u0119ciu, kt\u00f3ry poddaje pr\u0119t odkszta\u0142ceniu plastycznemu na zimno po starzeniu. Starzenie ustali\u0142o ju\u017c wydzielenie; ci\u0105gnienie na zimno dodaje nast\u0119pnie umocnienie od dyslokacji na jego wierzchu i ustala \u015brednic\u0119 w tym samym przej\u015bciu. Pr\u0119t T9 przychodzi z ju\u017c ustalonymi wymiarami i napr\u0119\u017ceniami resztkowymi, dlatego precyzyjne cz\u0119\u015bci toczone s\u0105 zwykle okre\u015blane w T9 \u2014 \u015brednica, do kt\u00f3rej obrabiasz, jest \u015brednic\u0105, kt\u00f3r\u0105 pr\u0119t utrzymuje.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T8 odwraca t\u0119 kolejno\u015b\u0107. Odkszta\u0142cenie plastyczne na zimno wprowadza si\u0119 przed starzeniem, wi\u0119c pr\u0119t jest starzony w swoim wymiarze po ci\u0105gnieniu, a nie ci\u0105gniony po starzeniu. Pr\u0119t T8 osi\u0105ga granic\u0119 plastyczno\u015bci 315 MPa i wytrzyma\u0142o\u015b\u0107 na rozci\u0105ganie 345 MPa przy wyd\u0142u\u017ceniu 4% \u2014 wi\u0119cej granicy plastyczno\u015bci ni\u017c T6, o 15 MPa mniej ni\u017c T9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6026-T9 w liczbach<\/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\/11\/Machining-Anodizing-and-Welding.webp\" alt=\"Machining, Anodizing and Welding\" class=\"wp-image-10796\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/Machining-Anodizing-and-Welding.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/Machining-Anodizing-and-Welding-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/Machining-Anodizing-and-Welding-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/Machining-Anodizing-and-Welding-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/Machining-Anodizing-and-Welding-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Poni\u017csze warto\u015bci minimalne pochodz\u0105 z EN 754-2 dla pr\u0119t\u00f3w ci\u0105gnionych na zimno i EN 755-2 dla wyrob\u00f3w wyciskanych. T9 istnieje wy\u0142\u0105cznie jako wyr\u00f3b ci\u0105gniony; T6510 i T6511 istniej\u0105 wy\u0142\u0105cznie jako wyr\u00f3b wyciskany i maj\u0105 t\u0119 sam\u0105 lini\u0119 wytrzyma\u0142o\u015bci co T6 w ka\u017cdym przedziale wymiarowym.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Temperament<\/th><th>Forma i norma<\/th><th>Zakres rozmiar\u00f3w<\/th><th>Rm min (MPa)<\/th><th>Rp0,2 min (MPa)<\/th><th>A min (%)<\/th><th>HB (typ.)<\/th><\/tr><\/thead><tbody><tr><td>T6<\/td><td>Pr\u0119t ci\u0105gniony, EN 754-2<\/td><td>D \u2264 80 mm<\/td><td>370<\/td><td>300<\/td><td>8<\/td><td>95<\/td><\/tr><tr><td>T8<\/td><td>Pr\u0119t ci\u0105gniony, EN 754-2<\/td><td>D \u2264 80 mm<\/td><td>345<\/td><td>315<\/td><td>4<\/td><td>95<\/td><\/tr><tr><td>T9<\/td><td>Pr\u0119t ci\u0105gniony, EN 754-2<\/td><td>D \u2264 80 mm<\/td><td>360<\/td><td>330<\/td><td>4<\/td><td>95<\/td><\/tr><tr><td>T6 \/ T6510 \/ T6511<\/td><td>Wyciskany, EN 755-2<\/td><td>D \u2264 140 mm<\/td><td>370<\/td><td>300<\/td><td>8<\/td><td>95<\/td><\/tr><tr><td>T6 \/ T6510 \/ T6511<\/td><td>Wyciskany, EN 755-2<\/td><td>140 &lt; D \u2264 200 mm<\/td><td>340<\/td><td>250<\/td><td>8<\/td><td>90<\/td><\/tr><tr><td>T6 \/ T6510 \/ T6511<\/td><td>Wyciskany, EN 755-2<\/td><td>200 &lt; D \u2264 250 mm<\/td><td>300<\/td><td>200<\/td><td>8<\/td><td>90<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Wybieraj na podstawie kolumny granicy plastyczno\u015bci, a nie kolumny wytrzyma\u0142o\u015bci na rozci\u0105ganie. T9 utrzymuje najwy\u017csz\u0105 granic\u0119 plastyczno\u015bci na poziomie 330 MPa, o 30 MPa powy\u017cej T6, podczas gdy jego minimum wytrzyma\u0142o\u015bci na rozci\u0105ganie wynosz\u0105ce 360 MPa faktycznie le\u017cy 10 MPa <em>poni\u017cej<\/em> T6 wynosz\u0105cego 370 \u2014 odkszta\u0142cenie plastyczne na zimno na starzonej strukturze kupuje odporno\u015b\u0107 na trwa\u0142e odkszta\u0142cenie i oddaje wytrzyma\u0142o\u015b\u0107 na rozci\u0105ganie oraz wyd\u0142u\u017cenie, aby to uzyska\u0107.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">W\u0142a\u015bciwo\u015bci fizyczne s\u0105 takie, jak zwykle w przypadku 6xxx; s\u0105 to warto\u015bci typowe, a nie minimalne: g\u0119sto\u015b\u0107 2,72 g\/cm\u00b3, modu\u0142 spr\u0119\u017cysto\u015bci oko\u0142o 69\u201370 GPa, przewodno\u015b\u0107 cieplna 172 W\/(m\u00b7K), przewodno\u015b\u0107 elektryczna oko\u0142o 26 MS\/m (mniej wi\u0119cej 44% IACS) oraz wsp\u00f3\u0142czynnik rozszerzalno\u015bci cieplnej 23,4 \u00d7 10\u207b\u2076\/K mi\u0119dzy 20 a 100 \u00b0C. Krzepni\u0119cie przebiega w przybli\u017ceniu w zakresie 575\u2013650 \u00b0C.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T9 vs T6 vs T8 vs T6510\/T6511<\/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\/11\/T9-vs-T6-vs-T8-vs-T6510T6511.webp\" alt=\"T9 vs T6 vs T8 vs T6510T6511\" class=\"wp-image-10798\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/T9-vs-T6-vs-T8-vs-T6510T6511.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/T9-vs-T6-vs-T8-vs-T6510T6511-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/T9-vs-T6-vs-T8-vs-T6510T6511-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/T9-vs-T6-vs-T8-vs-T6510T6511-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/T9-vs-T6-vs-T8-vs-T6510T6511-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Temperament<\/th><th>Sekwencja<\/th><th>Rm min<\/th><th>Rp0.2 min<\/th><th>A min<\/th><th>Kiedy go wybra\u0107<\/th><\/tr><\/thead><tbody><tr><td>T6<\/td><td>Przesycanie + starzenie<\/td><td>370<\/td><td>300<\/td><td>8%<\/td><td>You need the best tensile-elongation balance, or the part is extruded rather than drawn<\/td><\/tr><tr><td>T8<\/td><td>Solution + cold work + age<\/td><td>345<\/td><td>315<\/td><td>4%<\/td><td>The bar is already cold drawn and the part needs more proof stress than T6 at the same 4% elongation<\/td><\/tr><tr><td>T9<\/td><td>Solution + age + cold work<\/td><td>360<\/td><td>330<\/td><td>4%<\/td><td>The finished part is cut, not formed, and must hold its set under the highest load the grade allows<\/td><\/tr><tr><td>T6510<\/td><td>T6 + stretch, no re-straightening<\/td><td>370<\/td><td>300<\/td><td>8%<\/td><td>A large extruded section is machined flat or square and residual stress would move it<\/td><\/tr><tr><td>T6511<\/td><td>T6510 + light straightening<\/td><td>370<\/td><td>300<\/td><td>8%<\/td><td>Same as T6510, but the section needs straightening inside standard tolerance after the stretch<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T9<\/strong> is the right call when the part is produced entirely by machining and the design load is carried below the yield point. The 330 MPa proof stress is the highest the alloy offers, and the cold-finished diameter means the bar is already where the tolerance wants it. The cost is 4% elongation: T9 leaves almost no room for a bend, a swage, or a crimp after delivery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T6<\/strong> covers the widest range of work. Its 370 MPa tensile and 8% elongation give room to form or straighten after heat treatment, and it is the temper extruded tube and profile come in. If the part needs any deformation after aging, T6 or one of its stress-relieved versions is the one that can still take it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T8<\/strong> sits between them and is easy to overlook. It is a drawn-bar temper like T9, but with cold work ahead of aging: 315 MPa proof stress and 345 MPa tensile, still at 4% elongation. Specify T8 when the drawing calls for more proof stress than T6 and the part will not be formed \u2014 but T9 is available, it gives 15 MPa more proof stress at the same elongation, so T8 usually loses that comparison on a like-for-like drawing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>T6510 and T6511<\/strong> are the stress-relieved versions of T6 and exist only for extruded product. They change residual stress, not the strength line, so the choice between them and T6 is about distortion after machining rather than load capacity. T6510 forbids straightening after the stretch; T6511 allows light straightening to hold tolerance, which is why it appears more often on standard extruded sections.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Shapes and Sizes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The temper usually decides the form. T9 and T8 are drawn-bar tempers; T6510 and T6511 are extruded; T6 exists in both. Where a drawing needs a temper the standard form does not carry, the route changes \u2014 the order does not get refused.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bar and rod<\/strong> \u2014 round 6\u2013400 mm, hex and square 6\u2013200 mm, length 1000\u20136000 mm. T9 is normally a cold-drawn round bar.<\/li>\n\n\n\n<li><strong>Sheet and plate<\/strong> \u2014 0.5\u2013120 mm thick, 1000\u20132600 mm wide, length 1000\u20136000 mm.<\/li>\n\n\n\n<li><strong>Rura<\/strong> \u2014 outer diameter 10\u2013300 mm, wall 0.5\u201330 mm.<\/li>\n\n\n\n<li><strong>Kr\u0105g<\/strong> \u2014 supplied on enquiry. Tell us the required temper, width and coil weight and we confirm what the mill can run; coil is not a standing stock form for this grade.<\/li>\n\n\n\n<li><strong>Custom profiles<\/strong> \u2014 extruded to your section drawing (<a href=\"https:\/\/premiumalu.com\/pl\/odkryj-profile-aluminiowe-wytlaczane-na-zamowienie-wyjasnienie\/\">how custom extrusion profiles are produced<\/a> covers the route from drawing to die).<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Non-standard sections and sizes are produced to order. Low-MOQ custom runs typically take 10\u201360 days depending on size and processing; what a size outside the standard range changes is the production route and the lead time, not whether we will quote it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Go \/ No-Go<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Go<\/strong> when the part is turned or milled in volume, the enquiry has to clear RoHS or ELV, and 6061-T6 is short on strength while a 2xxx or 7xxx grade would be more than the design needs. The bismuth chip control is what pays for the alloy, and it pays most on automatic lathes running long batches.<\/li>\n\n\n\n<li><strong>Go<\/strong> when the part needs an anodized finish and free-machining behavior at the same time; a leaded free-machining grade dulls that finish and carries its own compliance burden. Note the qualification: 6026 meets ELV and RoHS <strong>under the lead exemption for aluminum alloys<\/strong>, which permits up to 0.40% Pb. It is a low-lead grade, not a zero-lead grade, and the distinction matters if your compliance file treats exemptions differently from substance bans.<\/li>\n\n\n\n<li><strong>No-go<\/strong> when the drawing fixes T9 or T8 on a part that still has to be formed. That is a temper mismatch rather than an alloy limitation \u2014 6026 forms in O and T4, and the drawing changes temper, not grade.<\/li>\n\n\n\n<li><strong>No-go<\/strong> when the service environment needs the seawater performance of a 5xxx alloy, or when 6061 or <a href=\"https:\/\/premiumalu.com\/pl\/6063-aluminum-alloy-guide\/\">6063<\/a> already meets the drawing. 6026 costs more than either, and the premium only returns where the free-machining behavior and the compliance position are both being used.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Specifying and Sourcing 6026<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Four lines on the enquiry prevent most wrong deliveries:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Name the standard, not only the alloy.<\/strong> <code>6026-T9 to EN 754-2<\/code> fixes the product form, the size band and the property table; <code>6026-T9<\/code> on its own leaves all three open.<\/li>\n\n\n\n<li><strong>Pair the temper with a form the standard carries.<\/strong> T9 and T8 belong to drawn bar under EN 754-2; T6, T6510 and T6511 belong to extruded product under EN 755-2. Asking for <code>T9 extruded profile<\/code> sends the enquiry back for clarification.<\/li>\n\n\n\n<li><strong>Give the size band, not just the nominal.<\/strong> The EN 755-2 minimums step down at 140 mm and again at 200 mm, so a 210 mm bar is specified against 300 MPa tensile, not 370.<\/li>\n\n\n\n<li><strong>Wymagaj EN 10204 3.1.<\/strong> That certificate carries the heat&#8217;s actual chemistry and mechanical results, signed at the producing mill, and it is the only document that lets you check Bi, Sn and Pb against the limits above.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Nasz <a href=\"https:\/\/premiumalu.com\/pl\/produkt\/stop-aluminium-6026\/\">Stop aluminium 6026<\/a> page lists the forms and tempers we run, so the size and temper can be checked before you write the enquiry.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Wnioski<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T9 gives 6026 its highest proof stress at 330 MPa and its lowest elongation at 4%, so it suits a part that is machined to final form and loaded below yield, and rules out anything that still has to bend. T6, T8 and T6510\/T6511 trade that yield back for formability or for lower residual stress in large sections.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We draw and supply 6026 in T6, T8, T9, T6510 and T6511 across bar, sheet, tube and custom profiles, with MTC on every order and coil quoted on enquiry.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Send your drawing with the standard, temper and size band, and we will confirm the production route and lead time before you commit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cz\u0119sto zadawane pytania<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">What is 6026 T9 aluminum?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">6026 is a low-lead free-machining 6xxx alloy, and T9 is the temper produced by aging the bar and then cold working it. Because the cold draw is the last step, the bar arrives strengthened and dimensionally finished \u2014 which is why T9 suits precision turned parts.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is 6026 T9 stronger than T6?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It depends which strength you mean. T9 reaches a higher 0.2% proof stress, 330 MPa against T6&#8217;s 300, so it resists permanent set better. Its tensile minimum is 360 MPa against T6&#8217;s 370 \u2014 10 MPa lower \u2014 and its elongation drops from 8% to 4%.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can 6026 T9 be welded?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, by TIG or MIG, but the joint will not hold T9 properties. The heat-affected zone reverts toward the annealed condition, and no post-weld aging treatment restores the T9 structure in this grade. If the finished assembly must carry T9 strength across a weld, change the design to a mechanical joint or pick a temper you can accept losing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Which tempers do you supply, and what is the minimum order?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">We supply bar, sheet, tube and custom profiles in T6, T8, T9, T6510 and T6511. Coil is quoted on enquiry. Round bar runs 6\u2013400 mm and sheet 0.5\u2013120 mm thick.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Non-standard sizes go to low-MOQ custom production, typically 10\u201360 days. Send the drawing, temper and size band for a route and a price.<\/p>","protected":false},"excerpt":{"rendered":"<p>6026-T9 is the temper to specify when a machined part has to resist permanent set as far as this alloy allows, and will never be bent afterwards. Cold working the bar after aging takes the 0.2% proof stress to 330 MPa, 30 MPa above T6, and leaves 4% elongation to work with instead of 8%. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10793,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"6026 T9 Aluminum: Properties and T6\/T6510 Comparison","_seopress_titles_desc":"6026 T9 is the highest-yield temper of this low-lead free-machining 6xxx alloy. See how it compares to T6, T8 and T6510, and the forms we supply.","_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":[177],"tags":[],"class_list":["post-10795","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-5000_6000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/posts\/10795","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/comments?post=10795"}],"version-history":[{"count":1,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/posts\/10795\/revisions"}],"predecessor-version":[{"id":10799,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/posts\/10795\/revisions\/10799"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/media\/10793"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/media?parent=10795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/categories?post=10795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/pl\/wp-json\/wp\/v2\/tags?post=10795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}