{"id":8345,"date":"2025-03-23T12:23:37","date_gmt":"2025-03-23T12:23:37","guid":{"rendered":"https:\/\/premiumalu.com\/mastering-2017-aluminum-a-detailed-guide\/"},"modified":"2026-11-04T07:17:36","modified_gmt":"2026-11-04T07:17:36","slug":"dominando-o-aluminio-2017-um-guia-detalhado","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/pt\/mastering-2017-aluminum-a-detailed-guide\/","title":{"rendered":"2017 Alum\u00ednio: Composi\u00e7\u00e3o, T\u00eamperas"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><a href=\"https:\/\/premiumalu.com\/pt\/produto\/liga-de-aluminio-2017\/\">Alum\u00ednio 2017<\/a> \u00e9 o duralum\u00ednio original \u2014 uma liga Al-Cu-Mg contendo aproximadamente 4% de cobre, registrada pela Aluminum Association como 2017 e normalizada na Europa como EN AW-2017A. Ainda \u00e9 comprada pelo motivo pelo qual foi inventada: alta resist\u00eancia em uma pe\u00e7a que ser\u00e1 usinada ou rebitada em vez de soldada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Duas coisas decidem se um pedido correr\u00e1 bem. O par de designa\u00e7\u00f5es n\u00e3o \u00e9 intercambi\u00e1vel \u2014 a 2017A permite at\u00e9 1,0% de magn\u00e9sio contra 0,8% da 2017, de modo que um lote de 2017A pode reprovar em um desenho de 2017 \u2014 e a lista de t\u00eamperas \u00e9 mais curta do que o mercado sugere, porque T4 e T451 s\u00e3o o que as normas de produto efetivamente tabulam.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O que \u00e9 o Alum\u00ednio 2017<\/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\/2017-aluminum-cover.webp\" alt=\"2017-aluminum-cover\" class=\"wp-image-10819\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-cover.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-cover-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-cover-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-cover-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-cover-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">O cobre \u00e9 o motor da liga e sua vulnerabilidade. A 3,5\u20134,5% ele impulsiona a resposta ao endurecimento por precipita\u00e7\u00e3o, com \u03b8-Al\u2082Cu e S-Al\u2082CuMg formando-se durante o envelhecimento natural; o mangan\u00eas a 0,4\u20131,0% controla a estrutura de gr\u00e3os e adiciona tenacidade. O resultado atinge resist\u00eancia estrutural na condi\u00e7\u00e3o envelhecida naturalmente, sem etapa de envelhecimento artificial.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Como a classe \u00e9 anterior \u00e0 gera\u00e7\u00e3o 2xxx que a sucedeu, desenhos a partir da d\u00e9cada de 1940 ainda a nomeiam, assim como especifica\u00e7\u00f5es de pe\u00e7as de reposi\u00e7\u00e3o para equipamentos fabricados naquela \u00e9poca. Refer\u00eancias cruzadas para verificar em vez de substituir: UNS A92017, EN AW-2017 e EN AW-2017A (AlCu4MgSi e AlCu4MgSi(A)), DIN 3.1325, GB\/T 3190 2A11. Destas, a 2A11 \u00e9 a designa\u00e7\u00e3o rotineiramente citada como \u201ca mesma liga\u201d \u2014 verifique-a em vez de substitu\u00ed-la, pois o controle de impurezas e os requisitos mec\u00e2nicos chineses s\u00e3o definidos separadamente dos sistemas AA e EN.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2017 ou 2017A: A Primeira Decis\u00e3o em Qualquer Desenho<\/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\/2017-vs-2017a.webp\" alt=\"2017-vs-2017a\" class=\"wp-image-10820\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-vs-2017a.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-vs-2017a-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-vs-2017a-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-vs-2017a-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-vs-2017a-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">As duas designa\u00e7\u00f5es compartilham todos os limites exceto o magn\u00e9sio e a entrada tit\u00e2nio\/zirc\u00f4nio. Lado a lado, a diferen\u00e7a \u00e9 pequena o suficiente para passar despercebida em um certificado e grande o suficiente para rejeitar um lote.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Elemento (% em peso)<\/th><th>AA 2017<\/th><th>EN AW-2017A<\/th><\/tr><\/thead><tbody><tr><td>Sil\u00edcio<\/td><td>0.20 \u2013 0.80<\/td><td>0.20 \u2013 0.80<\/td><\/tr><tr><td>Ferro<\/td><td>0,70 m\u00e1x.<\/td><td>0,70 m\u00e1x.<\/td><\/tr><tr><td>Cobre<\/td><td>3.50 \u2013 4.50<\/td><td>3.50 \u2013 4.50<\/td><\/tr><tr><td>Mangan\u00eas<\/td><td>0.40 \u2013 1.00<\/td><td>0.40 \u2013 1.00<\/td><\/tr><tr><td><strong>Magn\u00e9sio<\/strong><\/td><td><strong>0.40 \u2013 0.80<\/strong><\/td><td><strong>0.40 \u2013 1.00<\/strong><\/td><\/tr><tr><td>Cromo<\/td><td>0,10 m\u00e1ximo<\/td><td>0,10 m\u00e1ximo<\/td><\/tr><tr><td>Zinco<\/td><td>0,25 m\u00e1ximo<\/td><td>0,25 m\u00e1ximo<\/td><\/tr><tr><td>Tit\u00e2nio<\/td><td>0,15 m\u00e1ximo<\/td><td>\u2014<\/td><\/tr><tr><td>Zirc\u00f4nio + tit\u00e2nio<\/td><td>\u2014<\/td><td>0,25 m\u00e1ximo<\/td><\/tr><tr><td>Outros, cada \/ total<\/td><td>0.05 \/ 0.15<\/td><td>0.05 \/ 0.15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A rela\u00e7\u00e3o corre em um s\u00f3 sentido. Todo limite da AA 2017 est\u00e1 dentro da EN AW-2017A, de modo que material certificado como 2017 tamb\u00e9m satisfaz a 2017A. O inverso n\u00e3o se aplica: um lote de 2017A com 0,95% de magn\u00e9sio atende \u00e0 especifica\u00e7\u00e3o europeia e viola a americana.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Portanto, a regra n\u00e3o \u00e9 \u201cestas s\u00e3o equivalentes\u201d. Se o desenho nomeia 2017, leia o teor de magn\u00e9sio no certificado em vez do r\u00f3tulo da classe \u2014 o r\u00f3tulo n\u00e3o pode informar qual especifica\u00e7\u00e3o o lote atende.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u00eamperas: T4, T451 e o Pedido de \u201c2017-T6\u201d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">T4 \u00e9 tratamento t\u00e9rmico de solubiliza\u00e7\u00e3o seguido de envelhecimento natural, e \u00e9 a condi\u00e7\u00e3o na qual a maior parte desta liga \u00e9 fornecida. T451 adiciona al\u00edvio de tens\u00f5es por estiramento ap\u00f3s a t\u00eampera \u2014 o que voc\u00ea quer quando muito metal \u00e9 removido de chapa grossa e a planicidade precisa sobreviver \u00e0 usinagem. O \u00e9 usado quando a pe\u00e7a ser\u00e1 conformada e tratada termicamente depois; T42 cobre material que o comprador solubiliza a partir de O.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Essas quatro s\u00e3o o que as normas de chapa e placa tabulam para esta classe. T6 n\u00e3o est\u00e1 entre elas: a EN AW-2017A n\u00e3o \u00e9 envelhecida artificialmente para T6 na pr\u00e1tica europeia, e nenhuma norma de produto carrega um m\u00ednimo T6 para 2017 ao qual voc\u00ea possa responsabilizar um fornecedor. Uma consulta por \u201c2017-T6\u201d \u00e9 um item de contrato sob encomenda especial, n\u00e3o uma t\u00eampera de prateleira \u2014 ent\u00e3o pergunte qual propriedade o projetista estava comprando. Se a resposta for um limite de escoamento garantido mais alto, a solu\u00e7\u00e3o \u00e9 mudar de classe: 2024-T351 ou 2014-T6, ambas existentes nas normas com m\u00ednimos publicados.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Propriedades Mec\u00e2nicas por Espessura<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A resist\u00eancia da 2017 n\u00e3o \u00e9 um n\u00famero \u00fanico mas um conjunto de faixas de espessura, e o piso cai cerca de um quarto entre chapa fina e placa pesada. Este \u00e9 o m\u00ednimo da EN 485-2:2008 para chapa, tira e placa de 2017A em T4 e T451.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Espessura (mm)<\/th><th>Resist\u00eancia \u00e0 tra\u00e7\u00e3o Rm m\u00edn (MPa)<\/th><th>Limite de escoamento Rp0,2 m\u00edn (MPa)<\/th><th>Alongamento A50 m\u00edn (%)<\/th><\/tr><\/thead><tbody><tr><td>0.4 \u2013 1.5<\/td><td>390<\/td><td>245<\/td><td>14<\/td><\/tr><tr><td>1.5 \u2013 6.0<\/td><td>390<\/td><td>245<\/td><td>15<\/td><\/tr><tr><td>6.0 \u2013 12.5<\/td><td>390<\/td><td>260<\/td><td>13<\/td><\/tr><tr><td>12.5 \u2013 40<\/td><td>390<\/td><td>250<\/td><td>12<\/td><\/tr><tr><td>40 \u2013 60<\/td><td>385<\/td><td>245<\/td><td>12<\/td><\/tr><tr><td>60 \u2013 80<\/td><td>370<\/td><td>240<\/td><td>7<\/td><\/tr><tr><td>80 \u2013 120<\/td><td>360<\/td><td>240<\/td><td>6<\/td><\/tr><tr><td>120 \u2013 150<\/td><td>350<\/td><td>240<\/td><td>4<\/td><\/tr><tr><td>150 \u2013 180<\/td><td>330<\/td><td>220<\/td><td>2<\/td><\/tr><tr><td>180 \u2013 200<\/td><td>300<\/td><td>200<\/td><td>2<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Leia por espessura primeiro e liga depois. Uma chapa de 2 mm e uma placa de 150 mm s\u00e3o ambas legitimamente \u201c2017A-T4\u201d, e seus pisos garantidos de tra\u00e7\u00e3o diferem em 60 MPa. Projetar com o valor de bitola fina e comprar placa pesada \u00e9 a maneira mais comum de esta liga ficar abaixo de um c\u00e1lculo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Barras, vergalh\u00f5es e tubos s\u00e3o regidos separadamente \u2014 EN 755-2 para produto extrudado, EN 754-2 para trefilado. Use o valor para o di\u00e2metro que voc\u00ea est\u00e1 comprando da norma citada no pedido. ASTM B209 e B211 tamb\u00e9m faixam seus m\u00ednimos de forma diferente dos documentos EN, ent\u00e3o cite o valor ASTM da edi\u00e7\u00e3o no pedido de compra em vez de converter um n\u00famero EN para um desenho ASTM.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">O que o Cobre Faz com a Corros\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O cobre em solu\u00e7\u00e3o s\u00f3lida torna esta liga resistente; part\u00edculas ricas em cobre nos contornos de gr\u00e3o a tornam vulner\u00e1vel. Em servi\u00e7o \u00famido ou com cloretos, a diferen\u00e7a de potencial entre essas part\u00edculas e a matriz impulsiona o ataque galv\u00e2nico, e ele se concentra nos contornos de gr\u00e3o em vez de se espalhar uniformemente. A 2017 sem prote\u00e7\u00e3o \u00e9 uma m\u00e1 escolha ao ar livre, em atmosferas marinhas ou em qualquer lugar onde a pe\u00e7a fique \u00famida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00eas maneiras de mant\u00ea-la em servi\u00e7o: revestimento de alum\u00ednio (chapa alclad, onde uma camada de alum\u00ednio puro \u00e9 laminada na superf\u00edcie), um sistema de revestimento protetor e um projeto que mantenha a pe\u00e7a seca e a isole do a\u00e7o. A anodiza\u00e7\u00e3o funciona, com uma ressalva \u2014 o cobre perturba o crescimento do \u00f3xido, ent\u00e3o a anodiza\u00e7\u00e3o decorativa d\u00e1 cor irregular e um tom acastanhado, enquanto a anodiza\u00e7\u00e3o dura para resist\u00eancia ao desgaste se comporta melhor do que a anodiza\u00e7\u00e3o para apar\u00eancia. Onde a consist\u00eancia de cor \u00e9 uma linha de especifica\u00e7\u00e3o, a 2017 n\u00e3o igualar\u00e1 uma pe\u00e7a 6xxx no mesmo tanque.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Usinagem: Onde a 2017 Realmente Se Situa<\/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\/2017-aluminum-applications.webp\" alt=\"2017-aluminum-applications\" class=\"wp-image-10823\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-applications.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-applications-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-applications-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-applications-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-applications-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">A 2017 tem reputa\u00e7\u00e3o de usinagem livre, e \u00e9 merecida \u2014 mas o ranking \u00e9 frequentemente declarado na dire\u00e7\u00e3o errada. No \u00edndice comum onde a 2011 \u00e9 a refer\u00eancia 280, a 2017 pontua 200 e a 2024 pontua 210: a mesma faixa. A 7075 fica mais baixa em 170, e a 2011 \u00e9 a classe dedicada de usinagem livre em 280.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A vers\u00e3o honesta: a 2017 usina bem, corta cavacos quebrados curtos e mant\u00e9m bom acabamento, mas n\u00e3o \u00e9 mais r\u00e1pida que a 2024. A raz\u00e3o para escolh\u00ea-la em vez da 2024 \u00e9 custo e toler\u00e2ncia de conforma\u00e7\u00e3o, n\u00e3o tempo de ciclo. A fura\u00e7\u00e3o profunda \u00e9 uma for\u00e7a genu\u00edna da classe. O que importa mais que o \u00edndice \u00e9 a condi\u00e7\u00e3o do estoque \u2014 se\u00e7\u00f5es espessas precisam de T451, porque a tens\u00e3o residual na placa T4 move a pe\u00e7a durante a usinagem e novamente depois.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conforma\u00e7\u00e3o, Jun\u00e7\u00e3o e Acabamento<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Conforme a 2017 na condi\u00e7\u00e3o recozida ou rec\u00e9m-temperada. T4 dobra menos do que o nome da t\u00eampera sugere, e uma pe\u00e7a projetada em torno de raios de dobra de 6061-T6 rachar\u00e1 aqui.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A soldagem por fus\u00e3o n\u00e3o \u00e9 uma rota que esta liga suporta: a fam\u00edlia 2xxx com cobre \u00e9 sens\u00edvel a trincas no metal de solda, e a zona afetada pelo calor perde resist\u00eancia que o envelhecimento p\u00f3s-soldagem n\u00e3o pode recuperar. Soldagem por resist\u00eancia e a ponto se comportam melhor. Rebitagem, parafusamento e colagem adesiva s\u00e3o os m\u00e9todos estabelecidos, raz\u00e3o pela qual as aplica\u00e7\u00f5es hist\u00f3ricas da liga s\u00e3o rebites, conex\u00f5es e pe\u00e7as de torno autom\u00e1tico. Se o projeto precisa de uma junta soldada, mude de classe em vez de processo \u2014 <a href=\"https:\/\/premiumalu.com\/pt\/6061-vs-7075-aluminum\/\">6061<\/a> solda prontamente com consum\u00edvel 4043 ou 5356, e a 2219 existe para trabalho 2xxx soldado.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2017 vs 2024, 6061 e 7075<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A tabela usa valores t\u00edpicos para cada classe, porque \u00e9 disso que a quest\u00e3o de posicionamento precisa. O piso garantido para sua forma e espessura est\u00e1 na tabela de normas acima, ou no seu certificado.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Liga e t\u00eampera<\/th><th>UTS t\u00edpico (MPa)<\/th><th>Escoamento t\u00edpico (MPa)<\/th><th>Corros\u00e3o<\/th><th>Soldagem por fus\u00e3o<\/th><\/tr><\/thead><tbody><tr><td>2017-T4<\/td><td>427<\/td><td>276<\/td><td>Ruim sem prote\u00e7\u00e3o<\/td><td>N\u00e3o recomendado<\/td><\/tr><tr><td>2024-T3 \/ T351<\/td><td>470<\/td><td>325<\/td><td>Ruim sem prote\u00e7\u00e3o<\/td><td>N\u00e3o recomendado<\/td><\/tr><tr><td>6061-T6<\/td><td>310<\/td><td>276<\/td><td>Bom<\/td><td>Prontamente<\/td><\/tr><tr><td>7075-T6<\/td><td>572<\/td><td>503<\/td><td>Ruim<\/td><td>N\u00e3o recomendado<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Contra <a href=\"https:\/\/premiumalu.com\/pt\/propriedades-do-aluminio-2024-t4\/\">Alum\u00ednio 2024<\/a> a diferen\u00e7a \u00e9 menor do que os n\u00fameros das classes sugerem \u2014 cerca de 10% na tra\u00e7\u00e3o t\u00edpica, mais pr\u00f3ximo de 18% no escoamento, que \u00e9 o valor que governa uma pe\u00e7a usinada carregada. A 2024 \u00e9 mais resistente com uma base de suprimentos aeroespacial muito mais ampla; a 2017 permanece em cena onde o desenho j\u00e1 a nomeia, onde a toler\u00e2ncia de conforma\u00e7\u00e3o supera os \u00faltimos 18% de escoamento, ou onde a pe\u00e7a \u00e9 um rebite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Contra a 6061, as duas est\u00e3o niveladas no escoamento t\u00edpico, e a 6061 \u00e9 o material mais f\u00e1cil de conviver: ela solda, resiste \u00e0 corros\u00e3o, \u00e9 universalmente estocada. Escolha a 2017 quando a pe\u00e7a precisa de mais do que o piso garantido da 6061 sem pagar os pre\u00e7os da 2024, em um ambiente onde revestimento ou servi\u00e7o interno contenha a penalidade de corros\u00e3o. Contra a <a href=\"https:\/\/premiumalu.com\/pt\/dominando-a-liga-de-aluminio-7075-t651-um-guia-abrangente\/\">7075-T6<\/a> \u00e9 uma classe de resist\u00eancia diferente \u2014 cerca de um ter\u00e7o maior, mais cara, mais lenta de usinar.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Go\/No-Go<\/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\/2017-aluminum-selection.webp\" alt=\"2017-aluminum-selection\" class=\"wp-image-10824\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-selection.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-selection-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-selection-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-selection-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/11\/2017-aluminum-selection-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>V\u00e1 \u2014 a 2017 se encaixa quando todas estas condi\u00e7\u00f5es se aplicam:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A pe\u00e7a \u00e9 usinada, torneada, furada ou rebitada, e a jun\u00e7\u00e3o \u00e9 mec\u00e2nica em vez de soldada.<\/li>\n\n\n\n<li>O servi\u00e7o \u00e9 interno, ou a pe\u00e7a ser\u00e1 revestida, clad ou de outra forma protegida.<\/li>\n\n\n\n<li>O desenho j\u00e1 nomeia 2017, ou o projeto genuinamente precisa de mais do que um piso garantido de 6061.<\/li>\n\n\n\n<li>A tens\u00e3o de trabalho est\u00e1 dentro do m\u00ednimo de escoamento para a faixa de espessura que voc\u00ea est\u00e1 comprando.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>No-go \u2014 choose something else when any of these hold:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The assembly is fusion welded \u2014 <strong>6061 for general work, 2219 if a 2xxx is required.<\/strong><\/li>\n\n\n\n<li>The part sees marine, de-icing salt or permanent moisture without cladding or coating \u2014 <strong>5083 or 6061.<\/strong><\/li>\n\n\n\n<li>The design needs a guaranteed yield above 260 MPa, the highest band in the table \u2014 <strong>2024-T351.<\/strong><\/li>\n\n\n\n<li>The drawing calls for 2017-T6 \u2014 <strong>2024-T351 or 2014-T6, because the temper has no standard minimum here.<\/strong><\/li>\n\n\n\n<li>Color-critical anodized finish is a specification line \u2014 <strong>6061, or plan on paint.<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In practice it lands on rivets and fasteners, machined fittings, bushings, brake pistons, hinge pins, pulleys, camera and optical components, jigs and tooling plate, and legacy aerospace secondary structure where the drawing is already fixed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What to Put on the Purchase Order<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Four lines decide whether the material you receive is the material you designed around.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Designation and standard.<\/strong> Write &#8220;2017 per ASTM B209&#8221; or &#8220;EN AW-2017A per EN 573-3&#8221;, not just &#8220;2017&#8221;. The designations carry different magnesium limits, and the standard decides which minimums apply.<\/li>\n\n\n\n<li><strong>Temper and stress condition.<\/strong> T4 or T451, stated explicitly. If the part is heavily machined from plate, T451 is the stress-relieved choice and the certificate should say so.<\/li>\n\n\n\n<li><strong>Thickness or diameter band.<\/strong> Give the actual dimension, because the minimum mechanical property follows the band, not the alloy name.<\/li>\n\n\n\n<li><strong>Certificate content.<\/strong> Require a mill test certificate reporting actual chemical analysis and actual mechanical results for the heat or lot, with magnesium as a number rather than a pass mark.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2017 aluminum earns its place on a narrow set of arguments: a machined or riveted part, a drawing that already names the grade, and a service environment where the copper penalty is controlled by coating or by staying indoors. Everything it offers comes from copper, and so does everything it costs \u2014 corrosion resistance, weldability and color-consistent anodizing all fall away in exchange for naturally aged strength at a lower price than 2024.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We supply 2017 and 2017A plate, sheet, bar and tube in T4, T451 and O, cut to size or to drawing, with an MTC reporting actual chemistry and mechanical results so the magnesium figure is visible before you release the part.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Send us the drawing, the designation on it and the thickness you need, and we will confirm which specification and temper band the part falls into.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Perguntas frequentes<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Which designation belongs on the purchase order \u2014 2017 or 2017A?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use the designation on the drawing, then require the certificate to show actual magnesium. If the drawing is silent, 2017A is the wider specification and accepts both.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is 2017 worth it over 6061 for a machined bracket?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Only if you need more than 6061-T6&#8217;s guaranteed tensile floor \u2014 290 MPa minimum for sheet and plate. On typical values the two are level at about 276 MPa yield, and 6061 is cheaper to finish and easier to weld. Under that floor, 6061 wins; over it, 2017 is cheaper than 2024.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is your MOQ and lead time for 2017 plate?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Plate in T4 and T451 quotes at low minimums, with MOQ set against the thickness and size you need rather than a mill tonnage. Stock covers common thicknesses; non-standard sizes are produced to order on the same low-MOQ basis. Custom production runs 10\u201360 days depending on thickness, size and whether stress-relieved T451 is required.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can you cut 2017 plate to size and supply the certificate with it?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes \u2014 cutting plate and bar to length or to drawing is part of normal order processing, not a separate service. Every order leaves with a mill certificate we issue after production, listing actual chemical analysis and mechanical results for the lot. Where the drawing calls for third-party verification, SGS reports are available on request at additional cost.<\/p>","protected":false},"excerpt":{"rendered":"<p>2017 aluminum is the original duralumin \u2014 an Al-Cu-Mg alloy carrying roughly 4% copper, registered by the Aluminum Association as 2017 and standardized in Europe as EN AW-2017A. It is still bought for the reason it was invented: high strength in a part that will be machined or riveted rather than welded. Two things decide [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10819,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"2017 Aluminum Alloy: Properties, Tempers, and Comparison Guide","_seopress_titles_desc":"Explore 2017 aluminum alloy properties, T4 temper characteristics, machinability limits, and comparisons with 2024, 6061, and 7075. Includes Go\/No-Go limits for engineering and procurement decisions.","_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":[174],"tags":[],"class_list":["post-8345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-2000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/posts\/8345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/comments?post=8345"}],"version-history":[{"count":4,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/posts\/8345\/revisions"}],"predecessor-version":[{"id":10826,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/posts\/8345\/revisions\/10826"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/media\/10819"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/media?parent=8345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/categories?post=8345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/pt\/wp-json\/wp\/v2\/tags?post=8345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}