{"id":7750,"date":"2025-02-04T14:33:17","date_gmt":"2025-02-04T14:33:17","guid":{"rendered":"https:\/\/premiumalu.com\/?p=7750"},"modified":"2026-09-13T07:44:57","modified_gmt":"2026-09-13T07:44:57","slug":"rozdily-mezi-slitinami-hliniku-7050-a-7075","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/differences-between-7050-vs-7075-aluminum-alloys\/","title":{"rendered":"Rozd\u00edly mezi slitinami hlin\u00edku 7050 a 7075"},"content":{"rendered":"<p class=\"wp-block-paragraph\">7050 a 7075 jsou dv\u011b vysokopevnostn\u00ed slitiny \u0159ady 7xxx, kter\u00e9 v\u011bt\u0161ina leteck\u00fdch a obrann\u00fdch odb\u011bratel\u016f vz\u00e1jemn\u011b porovn\u00e1v\u00e1 \u2014 \u010dasto na stejn\u00e9m v\u00fdkresu. \u0160patn\u00e9 rozhodnut\u00ed je drah\u00e9 v obou p\u0159\u00edpadech: 7075-T6 specifikovan\u00e1 do siln\u00e9ho, korozi exponovan\u00e9ho pr\u016f\u0159ezu m\u016f\u017ee prasknout p\u0159i trval\u00e9m zat\u00ed\u017een\u00ed, zat\u00edmco 7050 zvolen\u00e1 pro tenk\u00fd, na pevnost kritick\u00fd d\u00edl plat\u00ed pr\u00e9mii za hou\u017eevnatost, kterou nikdy nevyu\u017eije.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Toto srovn\u00e1n\u00ed proch\u00e1z\u00ed data, kter\u00e1 je skute\u010dn\u011b odli\u0161uj\u00ed \u2014 slo\u017een\u00ed, \u0161pi\u010dkovou pevnost versus lomovou hou\u017eevnatost, chov\u00e1n\u00ed p\u0159i korozn\u00edm prask\u00e1n\u00ed pod nap\u011bt\u00edm, stavy, ve kter\u00fdch se ka\u017ed\u00e1 vyr\u00e1b\u00ed, limity zpracov\u00e1n\u00ed a cenu \u2014 abyste mohli sladit slitinu s tlou\u0161\u0165kou pr\u016f\u0159ezu, zat\u00ed\u017een\u00edm a prost\u0159ed\u00edm, nikoli s headline \u010d\u00edslem pevnosti.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7050 vs 7075 v kostce<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Faktor<\/th><th>7050<\/th><th>7075<\/th><\/tr><\/thead><tbody><tr><td>\u0158ada \/ typ<\/td><td>7xxx Al-Zn-Mg-Cu, zrnitost modifikovan\u00e1 zirkoniem<\/td><td>7xxx Al-Zn-Mg-Cu, zrnitost modifikovan\u00e1 chromem<\/td><\/tr><tr><td>\u0160pi\u010dkov\u00e1 UTS (b\u011b\u017en\u00fd stav)<\/td><td>524 MPa (T7451); 552 MPa (T7651)<\/td><td>572 MPa (T6 \/ T651)<\/td><\/tr><tr><td>\u0160pi\u010dkov\u00e1 mez kluzu<\/td><td>469\u2013490 MPa<\/td><td>503 MPa (T6)<\/td><\/tr><tr><td>Lomov\u00e1 hou\u017eevnatost (K_Ic, L-T)<\/td><td>32\u201338 MPa\u221am (vysok\u00e1)<\/td><td>26\u201330 MPa\u221am (st\u0159edn\u00ed)<\/td><\/tr><tr><td>Odolnost v\u016f\u010di SCC (kr\u00e1tkop\u0159\u00ed\u010dn\u00fd sm\u011br)<\/td><td>Vynikaj\u00edc\u00ed (T7451)<\/td><td>\u0160patn\u00e1 p\u0159i T6; dobr\u00e1 p\u0159i T73 \/ T7351<\/td><\/tr><tr><td>Zjem\u0148ova\u010d zrna<\/td><td>Zirkonium (Zr) 0,08\u20130,15%<\/td><td>Chrom (Cr) 0,18\u20130,28%<\/td><\/tr><tr><td>Nejlep\u0161\u00ed pro<\/td><td>Kritick\u00e1 konstrukce ze siln\u00fdch plech\u016f<\/td><td>Tenk\u00e9 \/ st\u0159edn\u011b siln\u00e9 vysokopevnostn\u00ed d\u00edly<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Chemick\u00e9 slo\u017een\u00ed<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Prvek<\/th><th>7050 (hm.%)<\/th><th>7075 (hm.%)<\/th><th>Co rozd\u00edl m\u011bn\u00ed<\/th><\/tr><\/thead><tbody><tr><td>Zinek (Zn)<\/td><td>5.7\u20136.7<\/td><td>5.1\u20136.1<\/td><td>Oba vysok\u00e9; prim\u00e1rn\u00ed zpev\u0148uj\u00edc\u00ed prvek<\/td><\/tr><tr><td>Ho\u0159\u010d\u00edk (Mg)<\/td><td>1.9\u20132.6<\/td><td>2.1\u20132.9<\/td><td>7075 m\u00edrn\u011b vy\u0161\u0161\u00ed<\/td><\/tr><tr><td>M\u011b\u010f (Cu)<\/td><td>2.0\u20132.6<\/td><td>1.2\u20132.0<\/td><td>7050 vy\u0161\u0161\u00ed \u2014 podporuje hou\u017eevnatost a odezvu na tepeln\u00e9 zpracov\u00e1n\u00ed<\/td><\/tr><tr><td>Zirkonium (Zr)<\/td><td>0.08\u20130.15<\/td><td>\u2014 (nespecifikov\u00e1no)<\/td><td>\u0158\u00edzen\u00ed zrna u 7050<\/td><\/tr><tr><td>Chrom (Cr)<\/td><td>\u22640,04<\/td><td>0.18\u20130.28<\/td><td>\u0158\u00edzen\u00ed zrna u 7075<\/td><\/tr><tr><td>K\u0159em\u00edk (Si)<\/td><td>\u22640,12<\/td><td>\u22640,40<\/td><td>7050 dr\u017eeno t\u011bsn\u011bji<\/td><\/tr><tr><td>\u017delezo (Fe)<\/td><td>\u22640,15<\/td><td>\u22640,50<\/td><td>7050 dr\u017eeno t\u011bsn\u011bji<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>\u22640,10<\/td><td>\u22640,30<\/td><td>7075 rozsah \u0161ir\u0161\u00ed<\/td><\/tr><tr><td>Titan (Ti)<\/td><td>\u22640,06<\/td><td>\u22640,20<\/td><td>\u2014<\/td><\/tr><tr><td>Hlin\u00edk (Al)<\/td><td>Bilance<\/td><td>Bilance<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Jedin\u00fd nejd\u016fle\u017eit\u011bj\u0161\u00ed rozd\u00edl ve slo\u017een\u00ed je modifik\u00e1tor zrna. 7050 pou\u017e\u00edv\u00e1 zirkonium; 7075 pou\u017e\u00edv\u00e1 chrom. Disperzoidy zirkonia umo\u017e\u0148uj\u00ed 7050 zachovat hou\u017eevnatost a odol\u00e1vat rekrystalizaci v siln\u00fdch pr\u016f\u0159ezech \u2014 to je z\u00e1klad jej\u00ed v\u00fdhody v odolnosti v\u016f\u010di korozn\u00edmu prask\u00e1n\u00ed pod nap\u011bt\u00edm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mechanick\u00e9 vlastnosti<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Majetek<\/th><th>7075-T6 \/ T651<\/th><th>7050-T7451<\/th><th>7050-T7651<\/th><\/tr><\/thead><tbody><tr><td>Pevnost v tahu<\/td><td>572 MPa<\/td><td>524 MPa<\/td><td>552 MPa<\/td><\/tr><tr><td>Mez kluzu (0,2%)<\/td><td>503 MPa<\/td><td>469 MPa<\/td><td>490 MPa<\/td><\/tr><tr><td>Prodlou\u017een\u00ed<\/td><td>10\u201313%<\/td><td>11%<\/td><td>11%<\/td><\/tr><tr><td>Tvrdost podle Brinella<\/td><td>~150 HB<\/td><td>~135 HB<\/td><td>~135 HB<\/td><\/tr><tr><td>Hustota<\/td><td>2,81 g\/cm\u00b3<\/td><td>2,83 g\/cm\u00b3<\/td><td>2,83 g\/cm\u00b3<\/td><\/tr><tr><td>Tepeln\u00e1 vodivost<\/td><td>~130 W\/m-K<\/td><td>~150\u2013190 W\/m\u00b7K<\/td><td>~150\u2013190 W\/m\u00b7K<\/td><\/tr><tr><td>Lomov\u00e1 hou\u017eevnatost K_Ic (L-T)<\/td><td>26\u201330 MPa\u221am<\/td><td>32\u201338 MPa\u221am<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">V\u0161imn\u011bte si b\u011b\u017en\u00e9 myln\u00e9 p\u0159edstavy, kterou tento \u010dl\u00e1nek d\u0159\u00edve opakoval: <strong>7075-T6 je vy\u0161\u0161\u00ed pevnostn\u00ed slitina v tenk\u00fdch a st\u0159edn\u011b siln\u00fdch pr\u016f\u0159ezech<\/strong> (572 MPa UTS vs 524 MPa pro 7050-T7451). 7050 se p\u0159ibli\u017euje \u0161pi\u010dce 7075 pouze se stavem T7651 (552 MPa). Co 7050 ztr\u00e1c\u00ed na \u0161pi\u010dkov\u00e9 pevnosti, vrac\u00ed jako hou\u017eevnatost a odolnost v\u016f\u010di prost\u0159ed\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pevnost a hou\u017eevnatost: Kde se rozch\u00e1zej\u00ed<\/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\/2025\/02\/02-strength-vs-toughness.jpg\" alt=\"\" class=\"wp-image-10538\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/02-strength-vs-toughness.jpg 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/02-strength-vs-toughness-300x225.jpg 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/02-strength-vs-toughness-768x576.jpg 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/02-strength-vs-toughness-16x12.jpg 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/02-strength-vs-toughness-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">7075-T6 dosahuje nejvy\u0161\u0161\u00ed meze pevnosti v tahu z obou slitin v tenk\u00fdch a st\u0159edn\u011b siln\u00fdch pr\u016f\u0159ezech \u2014 p\u0159ibli\u017en\u011b 572 MPa UTS a 503 MPa meze kluzu. To z n\u011bj \u010din\u00ed v\u00fdchoz\u00ed volbu, kdy\u017e je prioritou absolutn\u00ed statick\u00e1 pevnost na kilogram a pr\u016f\u0159ez je m\u00edrn\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">7050 je z\u00e1m\u011brn\u011b p\u0159est\u00e1rnut\u00e1 (T74 \/ T7451 \/ T7651). P\u0159est\u00e1rnut\u00ed vym\u011b\u0148uje p\u0159ibli\u017en\u011b 10\u201315% \u0161pi\u010dkov\u00e9 pevnosti za velk\u00fd zisk v lomov\u00e9 hou\u017eevnatosti a odolnosti proti korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed. V siln\u00fdch desk\u00e1ch z\u016fst\u00e1v\u00e1 7050-T7451 hou\u017eevnat\u00e1 a odoln\u00e1 proti prask\u00e1n\u00ed, zat\u00edmco 7075-T6 ztr\u00e1c\u00ed oboj\u00ed s rostouc\u00ed tlou\u0161\u0165kou \u2014 proto se nosn\u00edky k\u0159\u00eddel, p\u0159ep\u00e1\u017eky a siln\u00e9 tvarovky spol\u00e9haj\u00ed na 7050.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odolnost proti korozi a korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed<\/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\/2025\/02\/04-scc-resistance.jpg\" alt=\"\" class=\"wp-image-10540\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/04-scc-resistance.jpg 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/04-scc-resistance-300x225.jpg 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/04-scc-resistance-768x576.jpg 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/04-scc-resistance-16x12.jpg 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/04-scc-resistance-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Toto je nejjasn\u011bj\u0161\u00ed funk\u010dn\u00ed rozd\u00edl. 7075-T6 je n\u00e1chyln\u00e1 ke korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed (SCC), zejm\u00e9na ve sm\u011bru kr\u00e1tk\u00e9ho p\u0159\u00ed\u010dn\u00e9ho \u0159ezu siln\u00fdch desek a v mo\u0159sk\u00e9m nebo chemicky exponovan\u00e9m prost\u0159ed\u00ed. Obvyklou mitigac\u00ed je p\u0159est\u00e1rnut\u00fd stav T73 \/ T7351 nebo alclad opl\u00e1\u0161t\u011bn\u00ed plus ochrann\u00e9 povlaky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">7050 byla navr\u017eena pr\u00e1v\u011b kolem t\u00e9to slabiny. Jej\u00ed zirkoniov\u00e1 struktura zrn a p\u0159est\u00e1rnut\u00fd stav T7451 j\u00ed poskytuj\u00ed vynikaj\u00edc\u00ed odolnost proti SCC i v siln\u00fdch, vysoce nam\u00e1han\u00fdch pr\u016f\u0159ezech. Pro jak\u00fdkoli d\u00edl, kter\u00fd je vystaven vlhkosti, soli nebo trval\u00e9mu zat\u00ed\u017een\u00ed, je 7050 bezpe\u010dn\u011bj\u0161\u00ed volbou.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Stavy a tepeln\u00e9 zpracov\u00e1n\u00ed<\/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\/2025\/02\/05-temper-selection.jpg\" alt=\"\" class=\"wp-image-10539\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/05-temper-selection.jpg 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/05-temper-selection-300x225.jpg 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/05-temper-selection-768x576.jpg 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/05-temper-selection-16x12.jpg 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/05-temper-selection-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ob\u011b slitiny proch\u00e1zej\u00ed rozpou\u0161t\u011bc\u00edm \u017e\u00edh\u00e1n\u00edm, kalen\u00edm a st\u00e1rnut\u00edm; stav ur\u010duje rovnov\u00e1hu pevnost\u2013hou\u017eevnatost\u2013korozn\u00ed odolnost.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>7075:<\/strong> O (\u017e\u00edhan\u00fd), T6 \/ T651 (\u0161pi\u010dkov\u00e1 pevnost), T73 \/ T7351 (p\u0159est\u00e1rnut\u00fd pro SCC), T76.<\/li>\n\n\n\n<li><strong>7050:<\/strong> T6, T74, T7451, T7351, T7651 \u2014 v\u011bt\u0161ina produk\u010dn\u00edch s\u00e9ri\u00ed prob\u00edh\u00e1 v p\u0159est\u00e1rnut\u00e9m rozsahu T7xx, proto\u017ee pr\u00e1v\u011b tam spo\u010d\u00edv\u00e1 jej\u00ed v\u00fdhoda.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdroba: Obr\u00e1b\u011bn\u00ed, sva\u0159ov\u00e1n\u00ed, tv\u00e1\u0159en\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ob\u011b se dob\u0159e obr\u00e1b\u011bj\u00ed ve stavech T6 \/ T7, p\u0159i\u010dem\u017e 7075 se \u0159e\u017ee o n\u011bco snadn\u011bji. Ani jedna nen\u00ed vhodn\u00fdm kandid\u00e1tem pro tavn\u00e9 sva\u0159ov\u00e1n\u00ed: ob\u011b jsou n\u00e1chyln\u00e9 k hork\u00e9mu prask\u00e1n\u00ed a v\u00fdrazn\u00e9 ztr\u00e1t\u011b pevnosti po sva\u0159ov\u00e1n\u00ed, tak\u017ee sva\u0159ovan\u00e9 konstrukce ze 7xxx jsou vz\u00e1cn\u00e9 a obvykle vy\u017eaduj\u00ed tepeln\u00e9 zpracov\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed. Tv\u00e1\u0159en\u00ed je omezen\u00e9 ve srovn\u00e1n\u00ed se slitinami 5xxx nebo 6xxx; vy\u0161\u0161\u00ed pevnost a citlivost na kalen\u00ed u 7050 ji \u010din\u00ed m\u00e9n\u011b tva\u0159itelnou ne\u017e 7075 ve stejn\u00e9m stavu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Aplikace: Kde ka\u017ed\u00e1 v\u00edt\u011bz\u00ed<\/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\/2025\/02\/06-applications-go-no-go.jpg\" alt=\"\" class=\"wp-image-10541\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/06-applications-go-no-go.jpg 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/06-applications-go-no-go-300x225.jpg 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/06-applications-go-no-go-768x576.jpg 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/06-applications-go-no-go-16x12.jpg 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/02\/06-applications-go-no-go-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>7050:<\/strong> Siln\u00e9 nosn\u00edky a \u017eebra k\u0159\u00eddel, r\u00e1my trupu, p\u0159ep\u00e1\u017eky, \u00fachyty podvozku, tlakov\u00e9 n\u00e1doby a t\u011b\u017ek\u00e9 konstruk\u010dn\u00ed desky, kde tolerance proti prask\u00e1n\u00ed z\u00e1le\u017e\u00ed v\u00edce ne\u017e \u0161pi\u010dkov\u00e1 pevnost.<\/li>\n\n\n\n<li><strong>7075:<\/strong> Potahy k\u0159\u00eddel (zejm\u00e9na horn\u00ed tlakov\u00e9 potahy), pod\u00e9ln\u00edky trupu, sou\u010d\u00e1sti podvozku, vysoce v\u00fdkonn\u00e9 r\u00e1my bicykl\u016f a automobil\u016f a p\u0159esn\u00e9 n\u00e1stroje nebo desky forem, kde dominuje pevnost T6 a obrobitelnost.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Cena a dostupnost<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ob\u011b jsou pr\u00e9miov\u00e9 slitiny s cenou v\u00fdrazn\u011b nad komoditn\u00edmi t\u0159\u00eddami 6xxx a 5xxx. 7075 je obvykle levn\u011bj\u0161\u00ed variantou a je v\u00edce skladem v ty\u010d\u00edch, desk\u00e1ch a extrudovan\u00fdch form\u00e1ch. 7050 obvykle nese malou pr\u00e9mii spojenou s jej\u00ed zirkoniovou chemi\u00ed, p\u0159\u00edsn\u011bj\u0161\u00ed kontrolou ne\u010distot a obt\u00ed\u017enost\u00ed v\u00fdroby siln\u00fdch desek. Ov\u011b\u0159te aktu\u00e1ln\u00ed nab\u00eddky hut\u00ed podle stavu a pr\u016f\u0159ezu \u2014 rozd\u00edl je obvykle m\u00edrn\u00fd, ale re\u00e1ln\u00fd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jak vybrat: Go \/ No-Go<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Zvolte 7050, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tlou\u0161\u0165ka pr\u016f\u0159ezu je velk\u00e1 (deska 25 mm a v\u00edce) a tolerance proti prask\u00e1n\u00ed je kritick\u00e1.<\/li>\n\n\n\n<li>D\u00edl je vystaven trval\u00e9mu zat\u00ed\u017een\u00ed ve vlhk\u00e9m, mo\u0159sk\u00e9m nebo chemick\u00e9m prost\u0159ed\u00ed.<\/li>\n\n\n\n<li>Odolnost proti SCC ve sm\u011bru kr\u00e1tk\u00e9ho p\u0159\u00ed\u010dn\u00e9ho \u0159ezu je konstruk\u010dn\u00edm po\u017eadavkem.<\/li>\n\n\n\n<li>Pot\u0159ebujete lomovou hou\u017eevnatost siln\u00fdch desek, kterou 7075-T6 nedok\u00e1\u017ee poskytnout.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Zvolte 7075-T6, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0160pi\u010dkov\u00e1 statick\u00e1 pevnost na hmotnost je prioritou a pr\u016f\u0159ez je tenk\u00fd a\u017e st\u0159edn\u00ed.<\/li>\n\n\n\n<li>D\u00edl je obr\u00e1b\u011bn z desky nebo ty\u010de a sva\u0159itelnost nen\u00ed vy\u017eadov\u00e1na.<\/li>\n\n\n\n<li>N\u00e1klady a \u0161irok\u00e1 dostupnost skladem p\u0159eva\u017euj\u00ed nad omezen\u00edm SCC.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Vyhn\u011bte se ob\u011bma, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Konstrukce vy\u017eaduje tavn\u00e9 sva\u0159ov\u00e1n\u00ed jako prim\u00e1rn\u00ed spoj \u2014 zvolte m\u00edsto toho sva\u0159itelnou t\u0159\u00eddu 5xxx nebo 6xxx.<\/li>\n\n\n\n<li>Expozice korozi je z\u00e1va\u017en\u00e1 a ani jeden p\u0159est\u00e1rnut\u00fd stav se nevejde do rozpo\u010dtu \u2014 pro takov\u00e9 prost\u0159ed\u00ed zva\u017ete 5083 nebo 6061.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">7050 a 7075 jsou chemicky bl\u00edzc\u00ed p\u0159\u00edbuzn\u00ed, ale volba je z\u0159\u00eddka o surov\u00e9 pevnosti: 7075-T6 je pevn\u011bj\u0161\u00ed slitina v tenk\u00fdch pr\u016f\u0159ezech, zat\u00edmco 7050-T7451 v\u00edt\u011bz\u00ed v lomov\u00e9 hou\u017eevnatosti, odolnosti proti korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed a chov\u00e1n\u00ed siln\u00fdch desek. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Linsy Aluminum dod\u00e1v\u00e1 ob\u011b <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-7050\/\" data-type=\"link\" data-id=\"https:\/\/premiumalu.com\/product\/7050-aluminum-alloy\/\">7050<\/a> a <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-7075\/\" data-type=\"link\" data-id=\"https:\/\/premiumalu.com\/product\/7075-aluminum-alloy\/\">7075<\/a> v desk\u00e1ch, ty\u010d\u00edch, trubk\u00e1ch a zak\u00e1zkov\u00fdch form\u00e1ch ve standardn\u00edch stavech, s customizac\u00ed rozm\u011br\u016f a povrchov\u00e9 \u00fapravy a MTC pro ka\u017edou objedn\u00e1vku. Typick\u00e9 dodac\u00ed lh\u016fty pro zak\u00e1zky jsou 10\u201360 dn\u00ed v z\u00e1vislosti na slitin\u011b, stavu, velikosti a zpracov\u00e1n\u00ed. Po\u0161lete sv\u016fj v\u00fdkres a provozn\u00ed podm\u00ednky do Linsy Aluminum pro posouzen\u00ed vhodnosti t\u0159\u00eddy a aktu\u00e1ln\u00ed nab\u00eddku.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Kter\u00e1 je pevn\u011bj\u0161\u00ed, 7050 nebo 7075?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7075-T6 je pevn\u011bj\u0161\u00ed v tenk\u00fdch a st\u0159edn\u00edch pr\u016f\u0159ezech \u2014 p\u0159ibli\u017en\u011b 572 MPa UTS a 503 MPa meze kluzu, oproti 524 MPa UTS u 7050-T7451. 7050 se tomuto maximu p\u0159ibli\u017euje pouze se stavem T7651 (552 MPa). Skute\u010dn\u00e1 v\u00fdhoda 7050 spo\u010d\u00edv\u00e1 v hou\u017eevnatosti a odolnosti proti SCC, nikoli ve \u0161pi\u010dkov\u00e9 pevnosti.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kter\u00e1 l\u00e9pe odol\u00e1v\u00e1 korozi?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7050 odol\u00e1v\u00e1 korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed mnohem l\u00e9pe, zejm\u00e9na v siln\u00fdch pr\u016f\u0159ezech a p\u0159i mo\u0159sk\u00e9 nebo chemick\u00e9 expozici. 7075-T6 je n\u00e1chyln\u00e1 k SCC a obvykle vy\u017eaduje opl\u00e1\u0161t\u011bn\u00ed nebo p\u0159est\u00e1rnut\u00ed (T73 \/ T7351) pro jej\u00ed zvl\u00e1dnut\u00ed.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Lze 7050 nebo 7075 sva\u0159ovat?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ob\u011b jsou \u0161patn\u00fdmi kandid\u00e1ty pro tavn\u00e9 sva\u0159ov\u00e1n\u00ed \u2014 snadno praskaj\u00ed a ztr\u00e1cej\u00ed velkou \u010d\u00e1st sv\u00e9 pevnosti ve svaru. Pou\u017eijte mechanick\u00e9 spojov\u00e1n\u00ed nebo lepen\u00ed, p\u0159\u00edpadn\u011b zvolte slitinu 5xxx \/ 6xxx, pokud je sva\u0159ov\u00e1n\u00ed vy\u017eadov\u00e1no.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Kterou m\u00e1m zvolit pro silnou desku?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">7050-T7451. Jej\u00ed zirkoniov\u00e1 kontrola zrn a p\u0159est\u00e1rnut\u00fd stav udr\u017euj\u00ed vysokou hou\u017eevnatost a odolnost proti SCC v t\u011b\u017ek\u00fdch pr\u016f\u0159ezech, zat\u00edmco 7075-T6 ztr\u00e1c\u00ed oboj\u00ed s rostouc\u00ed tlou\u0161\u0165kou.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Je 7050 dra\u017e\u0161\u00ed ne\u017e 7075?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Obvykle trochu. 7075 je v\u00edce skladem a levn\u011bj\u0161\u00ed; 7050 nese m\u00edrnou pr\u00e9mii kv\u016fli sv\u00e9 zirkoniov\u00e9 chemii, p\u0159\u00edsn\u011bj\u0161\u00edm limit\u016fm ne\u010distot a v\u00fdrob\u011b siln\u00fdch desek. Rozd\u00edl je typicky mal\u00fd, ale re\u00e1ln\u00fd \u2014 ov\u011b\u0159te podle stavu a pr\u016f\u0159ezu.<\/p>","protected":false},"excerpt":{"rendered":"<p>7050 and 7075 are the two high-strength 7xxx-series alloys most aerospace and defense buyers weigh against each other \u2014 often on the same drawing. Getting the call wrong is expensive either way: 7075-T6 specified into a thick, corrosion-exposed section can crack under sustained load, while 7050 chosen for a thin, strength-critical part pays a toughness [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10537,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"7050 vs 7075 Aluminum: Strength, Toughness & Selection","_seopress_titles_desc":"7050 vs 7075 aluminum compared on strength, fracture toughness, stress-corrosion resistance, tempers, fabrication, and price \u2014 with a go\/no-go selection guide.","_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":[179,172],"tags":[],"class_list":["post-7750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-7000-series-aluminum","category-aluminum-production-process"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/7750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/comments?post=7750"}],"version-history":[{"count":2,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/7750\/revisions"}],"predecessor-version":[{"id":10542,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/7750\/revisions\/10542"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10537"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=7750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=7750"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=7750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}