{"id":8735,"date":"2025-05-21T14:31:05","date_gmt":"2025-05-21T14:31:05","guid":{"rendered":"https:\/\/premiumalu.com\/understanding-aluminum-5454-yield-strength-in-engineering\/"},"modified":"2026-09-22T13:15:40","modified_gmt":"2026-09-22T13:15:40","slug":"pochopeni-pevnosti-v-tahu-hliniku-5454-ve-strojirenstvi","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/understanding-aluminum-5454-yield-strength-in-engineering\/","title":{"rendered":"Hlin\u00edk 5454: Vlastnosti, plechy a desky, stavy vytvrzen\u00ed a aplikace"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Co je 5454 hlin\u00edk?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">5454 je slitina \u0159ady 5xxx vyvinut\u00e1 pro specifick\u00fd probl\u00e9m: hlin\u00edko-ho\u0159\u010d\u00edkov\u00e9 jakosti, kter\u00e9 jsou pevn\u00e9 a korozivzdorn\u00e9 p\u0159i pokojov\u00e9 teplot\u011b, ale st\u00e1vaj\u00ed se nespolehliv\u00fdmi p\u0159i zah\u0159\u00e1t\u00ed. Obsah ho\u0159\u010d\u00edku je omezen na 3,0 %, \u010d\u00edm\u017e z\u016fst\u00e1v\u00e1 t\u011bsn\u011b pod prahem, kde vysoce ho\u0159\u010d\u00edkov\u00e9 jakosti jako 5083 (4,0\u20134,9 % Mg) a 5456 (4,7\u20135,5 % Mg) za\u010d\u00ednaj\u00ed senzibilizovat a st\u00e1vaj\u00ed se n\u00e1chyln\u00fdmi ke korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed nad p\u0159ibli\u017en\u011b 65 \u00b0C. Mangan a chrom se p\u0159id\u00e1vaj\u00ed v mal\u00fdch kontrolovan\u00fdch mno\u017estv\u00edch pro zjemn\u011bn\u00ed struktury zrna a potla\u010den\u00ed precipitace na hranic\u00edch zrn, kter\u00e1 zp\u016fsobuje tento typ selh\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdsledkem je tepeln\u011b nezu\u0161lechtiteln\u00e1 slitina, kter\u00e1 si zachov\u00e1v\u00e1 u\u017eite\u010dnou pevnost a korozn\u00ed odolnost p\u0159i kontinu\u00e1ln\u00edm provozu do p\u0159ibli\u017en\u011b 150 \u00b0C \u2014 co\u017e je d\u016fvod, pro\u010d je 5454 jednou z m\u00e1la jakost\u00ed \u0159ady 5xxx uzn\u00e1van\u00fdch v norm\u00e1ch ASME pro tlakov\u00e9 n\u00e1doby pro konstrukce z hlin\u00edku p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch. Dod\u00e1v\u00e1 se t\u00e9m\u011b\u0159 v\u00fdhradn\u011b jako plech a tenk\u00fd plech a je specifikov\u00e1na pro sva\u0159ovan\u00e9 chemick\u00e9 n\u00e1dr\u017ee, n\u00e1doby pro tepl\u00e9 procesy, pl\u00e1\u0161t\u011b cisteren a mo\u0159sk\u00e9 komponenty vystaven\u00e9 teplu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Co 5454 nen\u00ed, je nejsiln\u011bj\u0161\u00ed mo\u017enost. Tam, kde je rozhoduj\u00edc\u00edm faktorem maxim\u00e1ln\u00ed pevnost v tahu p\u0159i pokojov\u00e9 teplot\u011b, v\u00edt\u011bz\u00ed 5083 a 6061-T6 v\u00edt\u011bz\u00ed je\u0161t\u011b v\u00edce. Selek\u010dn\u00ed ot\u00e1zka, na kterou 5454 odpov\u00edd\u00e1, je jin\u00e1: m\u016f\u017ee slitina z\u016fstat neporu\u0161en\u00e1 p\u0159i provozn\u00ed teplot\u011b, ne jen na zku\u0161ebn\u00edm stole.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chemick\u00e9 slo\u017een\u00ed 5454<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Mezn\u00ed hodnoty slo\u017een\u00ed podle ASTM B209 \/ EN 573-3, v hmotnostn\u00edch procentech.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Prvek<\/th><th>Obsah (%)<\/th><th>Role<\/th><\/tr><\/thead><tbody><tr><td>Ho\u0159\u010d\u00edk (Mg)<\/td><td>2.4 \u2013 3.0<\/td><td>Zpevn\u011bn\u00ed tuh\u00fdm roztokem; omezeno pro sn\u00ed\u017een\u00ed senzibilizace<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>0.50 \u2013 1.00<\/td><td>Zvy\u0161uje pevnost; zjem\u0148uje strukturu zrna<\/td><\/tr><tr><td>Chrom (Cr)<\/td><td>0.05 - 0.20<\/td><td>Potla\u010duje precipitaci na hranic\u00edch zrn<\/td><\/tr><tr><td>K\u0159em\u00edk (Si)<\/td><td>0,25 max.<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>\u017delezo (Fe)<\/td><td>max 0,40<\/td><td>Ne\u010distota<\/td><\/tr><tr><td>M\u011b\u010f (Cu)<\/td><td>0,10 max<\/td><td>Udr\u017eov\u00e1no na n\u00edzk\u00e9 \u00farovni pro korozn\u00ed odolnost<\/td><\/tr><tr><td>Zinek (Zn)<\/td><td>0,25 max.<\/td><td>Stopov\u00e9 mno\u017estv\u00ed<\/td><\/tr><tr><td>Titan (Ti)<\/td><td>max 0,20<\/td><td>Zjem\u0148ova\u010d zrna<\/td><\/tr><tr><td>Ostatn\u00ed (ka\u017ed\u00fd)<\/td><td>0,05 max<\/td><td>Stopov\u00e9 ne\u010distoty<\/td><\/tr><tr><td>Ostatn\u00ed (celkem)<\/td><td>0,15 max<\/td><td>Sou\u010det stopov\u00fdch ne\u010distot<\/td><\/tr><tr><td>Hlin\u00edk (Al)<\/td><td>Zbytek<\/td><td>Z\u00e1klad<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159\u00eddavky manganu a chromu jsou to, co odli\u0161uje 5454 od prost\u00e9ho plechu Al-Mg. Mangan p\u0159id\u00e1v\u00e1 p\u0159ibli\u017en\u011b 10\u201315 % k pevnosti v tahu a kluzu ve srovn\u00e1n\u00ed s odpov\u00eddaj\u00edc\u00ed \u00farovn\u00ed Mg a spole\u010dn\u011b s chromem inhibuje mezikrystalovou precipitaci, kter\u00e1 by jinak otev\u0159ela cestu ke korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed ve sva\u0159ovan\u00fdch spoj\u00edch p\u0159i trval\u00e9m zat\u00ed\u017een\u00ed. Tato kombinace je d\u016fvodem, pro\u010d se 5454 objevuje ve specifikac\u00edch n\u00e1dr\u017e\u00ed a n\u00e1dob, kde 5052 nebo 5754 nejsou akceptov\u00e1ny.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mechanick\u00e9 vlastnosti 5454 podle stavu zpracov\u00e1n\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\/05\/Mechanical-Properties-by-Temper-1.png\" alt=\"\" class=\"wp-image-10607\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Mechanical-Properties-by-Temper-1.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Mechanical-Properties-by-Temper-1-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Mechanical-Properties-by-Temper-1-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Mechanical-Properties-by-Temper-1-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Mechanical-Properties-by-Temper-1-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00e9 hodnoty pro plech a tenk\u00fd plech. Hodnoty podle ASTM B209 <em>minim\u00e1ln\u00ed<\/em> jsou ni\u017e\u0161\u00ed a m\u011bn\u00ed se s tlou\u0161\u0165kou \u2014 zaru\u010den\u00e9 hodnoty pro konkr\u00e9tn\u00ed \u0161ar\u017ei poch\u00e1zej\u00ed z hutn\u00edho atestu.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Temperament<\/th><th>Pevnost v tahu (MPa)<\/th><th>Mez kluzu (MPa)<\/th><th>Prodlou\u017een\u00ed (%)<\/th><th>Tvrdost (HB)<\/th><\/tr><\/thead><tbody><tr><td>O<\/td><td>250<\/td><td>117<\/td><td>22<\/td><td>62<\/td><\/tr><tr><td>H32<\/td><td>275<\/td><td>207<\/td><td>10<\/td><td>73<\/td><\/tr><tr><td>H34<\/td><td>305<\/td><td>241<\/td><td>10<\/td><td>81<\/td><\/tr><tr><td>H36<\/td><td>340<\/td><td>276<\/td><td>8<\/td><td>\u2014<\/td><\/tr><tr><td>H38<\/td><td>370<\/td><td>310<\/td><td>8<\/td><td>100<\/td><\/tr><tr><td>H111<\/td><td>260<\/td><td>179<\/td><td>14<\/td><td>70<\/td><\/tr><tr><td>H112<\/td><td>250<\/td><td>124<\/td><td>18<\/td><td>62<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Dv\u011b v\u011bci \u0159\u00edd\u00ed v\u011bt\u0161inu rozhodnut\u00ed o stavu zpracov\u00e1n\u00ed zde. Za prv\u00e9, <strong>H32 a H34 jsou jedin\u00e9 dva stavy zpracov\u00e1n\u00ed, kter\u00e9 v\u011bt\u0161ina specifikac\u00ed 5454 skute\u010dn\u011b pou\u017e\u00edv\u00e1<\/strong> \u2014 H32 pro tvarovan\u00e9 a sva\u0159ovan\u00e9 n\u00e1doby, H34 pro nosn\u00e9 pl\u00e1\u0161t\u011b s men\u0161\u00edm tvarov\u00e1n\u00edm. Za druh\u00e9, s\u00e9rie H3x je d\u016fle\u017eit\u00e1 zp\u016fsobem, jak\u00fdm u jin\u00fdch slitin nen\u00ed: stavy H1x jsou pouze deforma\u010dn\u011b zpevn\u011bn\u00e9, zat\u00edmco stavy H3x jsou deforma\u010dn\u011b zpevn\u011bn\u00e9 a pot\u00e9 stabilizovan\u00e9 n\u00edzkoteplotn\u00edm zpracov\u00e1n\u00edm. U sva\u0159ovan\u00e9 tlakov\u00e9 n\u00e1doby tato stabilizace p\u0159in\u00e1\u0161\u00ed m\u011b\u0159iteln\u011b lep\u0161\u00ed odolnost proti mezikrystalov\u00e9 korozi po sva\u0159ov\u00e1n\u00ed. Pro sva\u0159ovan\u00e9 konstrukce preferujte H32 nebo H34 p\u0159ed nestabilizovan\u00fdmi ekvivalenty.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H111 a H112 stoj\u00ed za to zn\u00e1t, proto\u017ee nejsou zam\u011bniteln\u00e9 s O. H112 je stav po v\u00e1lcov\u00e1n\u00ed za tepla pou\u017e\u00edvan\u00fd pro tlust\u00e9 plechy a sva\u0159ovan\u00e9 konstruk\u010dn\u00ed pr\u00e1ce, nesouc\u00ed m\u00edrnou pevnost bez samostatn\u00e9ho kroku za studena. H111 je lehce deforma\u010dn\u011b zpevn\u011bn\u00fd po \u017e\u00edh\u00e1n\u00ed, co\u017e d\u00e1v\u00e1 o n\u011bco vy\u0161\u0161\u00ed pevnost ne\u017e O p\u0159i zachov\u00e1n\u00ed v\u011bt\u0161iny ta\u017enosti.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pro\u010d 5454 odol\u00e1v\u00e1 korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Toto je sekce, kter\u00e1 ospravedl\u0148uje slitinu, tak\u017ee stoj\u00ed za to b\u00fdt p\u0159esn\u00fd ohledn\u011b mechanismu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U hlin\u00edko-ho\u0159\u010d\u00edkov\u00fdch slitin obsahuj\u00edc\u00edch v\u00edce ne\u017e p\u0159ibli\u017en\u011b 3 % ho\u0159\u010d\u00edku zp\u016fsobuje trval\u00e9 vystaven\u00ed teplot\u00e1m nad p\u0159ibli\u017en\u011b 65 \u00b0C precipitaci ho\u0159\u010d\u00edku jako \u03b2-f\u00e1ze (Al\u2083Mg\u2082) pod\u00e9l hranic zrn. Tyto hranice se st\u00e1vaj\u00ed anodick\u00fdmi a n\u00e1chyln\u00fdmi k mezikrystalov\u00e9mu napaden\u00ed; p\u0159i trval\u00e9m tahov\u00e9m nap\u011bt\u00ed v korozivn\u00edm prost\u0159ed\u00ed se to st\u00e1v\u00e1 korozn\u00edm prask\u00e1n\u00edm za nap\u011bt\u00ed. Po\u0161kozen\u00ed je kumulativn\u00ed a nelze je vr\u00e1tit tepeln\u00fdm zpracov\u00e1n\u00edm, co\u017e je d\u016fvod, pro\u010d plech 5083 a 5456 nese omezen\u00ed provozn\u00ed teploty sp\u00ed\u0161e ne\u017e postup opravy.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Omezen\u00edm ho\u0159\u010d\u00edku na 3,0 % a p\u0159id\u00e1n\u00edm chromu 5454 minimalizuje tuto precipitaci. Praktick\u00fdm d\u016fsledkem je provozn\u00ed okno, kter\u00e9 se otev\u00edr\u00e1 tam, kde se 5083 zav\u00edr\u00e1:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Provozn\u00ed podm\u00ednky<\/th><th>5454<\/th><th>5083<\/th><\/tr><\/thead><tbody><tr><td>Kontinu\u00e1ln\u00ed provoz, okoln\u00ed teplota<\/td><td>Vynikaj\u00edc\u00ed<\/td><td>Vynikaj\u00edc\u00ed<\/td><\/tr><tr><td>Kontinu\u00e1ln\u00ed provoz nad ~65 \u00b0C<\/td><td>Akceptov\u00e1no \u2014 dimenzov\u00e1no na p\u0159ibli\u017en\u011b 150 \u00b0C<\/td><td>Nedoporu\u010deno; riziko SCC<\/td><\/tr><tr><td>Celistvost po sva\u0159ov\u00e1n\u00ed v tepl\u00e9m provozu<\/td><td>Siln\u00e1 \u2014 preferov\u00e1ny stabilizovan\u00e9 stavy H3x<\/td><td>Vy\u017eaduje stav H116\/H321 a kontrolu teploty<\/td><\/tr><tr><td>Uzn\u00e1n\u00ed ASME pro tlakov\u00e9 n\u00e1doby, zv\u00fd\u0161en\u00e1 teplota<\/td><td>Ano<\/td><td>Omezeno teplotn\u00edm stropem<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pevnost tak\u00e9 kles\u00e1 s teplotou, jako u ka\u017ed\u00e9 hlin\u00edkov\u00e9 slitiny. 5454-H32 p\u0159i 150 \u00b0C si zachov\u00e1v\u00e1 p\u0159ibli\u017en\u011b 200 MPa pevnosti v tahu oproti sv\u00e9 hodnot\u011b 275 MPa p\u0159i pokojov\u00e9 teplot\u011b \u2014 p\u0159ibli\u017en\u011b 70 % zachov\u00e1no, co\u017e je pracovn\u00ed zat\u00ed\u017een\u00ed, ne zbytkov\u00e9. Nad p\u0159ibli\u017en\u011b 200 \u00b0C se pokles zrychluje bez ohledu na slitinu a nerezov\u00e1 ocel nebo slitinov\u00e9 materi\u00e1ly na b\u00e1zi niklu se st\u00e1vaj\u00ed standardn\u00ed volbou materi\u00e1lu.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">N\u00e1vrhov\u00e1 nap\u011bt\u00ed pro tlakov\u00fd provoz mus\u00ed b\u00fdt p\u0159evzata z p\u0159\u00edslu\u0161n\u00fdch tabulek dovolen\u00fdch nap\u011bt\u00ed podle k\u00f3du pro skute\u010dnou n\u00e1vrhovou teplotu, nikoli z hodnot p\u0159i pokojov\u00e9 teplot\u011b v tabulce v\u00fd\u0161e. Hodnota ~150 \u00b0C je \u0161iroce akceptovan\u00fd pokyn pro kontinu\u00e1ln\u00ed provoz a pokryt\u00ed ASME se roz\u0161i\u0159uje do p\u00e1sma 150\u2013200 \u00b0C pro kvalifikovan\u00fd tlakov\u00fd provoz.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">Fyzik\u00e1ln\u00ed vlastnosti 5454<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Majetek<\/th><th>Hodnota<\/th><\/tr><\/thead><tbody><tr><td>Hustota<\/td><td>2,69 g\/cm\u00b3<\/td><\/tr><tr><td>Rozsah taven\u00ed<\/td><td>602 \u2013 646 \u00b0C<\/td><\/tr><tr><td>Tepeln\u00e1 vodivost<\/td><td>~134 W\/m\u00b7K<\/td><\/tr><tr><td>Elektrick\u00e1 vodivost<\/td><td>~34 % IACS<\/td><\/tr><tr><td>Sou\u010dinitel tepeln\u00e9 rozta\u017enosti<\/td><td>23,6 \u00d7 10\u207b\u2076 \/\u00b0C (20\u2013100 \u00b0C)<\/td><\/tr><tr><td>M\u011brn\u00e1 tepeln\u00e1 kapacita<\/td><td>~900 J\/kg-K<\/td><\/tr><tr><td>Modul pru\u017enosti<\/td><td>~70 GPa<\/td><\/tr><tr><td>Poisson\u016fv pom\u011br<\/td><td>0.33<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Hodnoty vodivosti jsou ni\u017e\u0161\u00ed ne\u017e u 5052 (~138 W\/m\u00b7K, ~35 % IACS), proto\u017ee 5454 obsahuje v\u00edce ho\u0159\u010d\u00edku a manganu v tuh\u00e9m roztoku. To je o\u010dek\u00e1van\u00fd kompromis: legov\u00e1n\u00ed pro pevnost a tepelnou stabilitu stoj\u00ed ur\u010ditou vodivost. Tam, kde je aplikace tepeln\u011b \u0159\u00edzen\u00e1 sp\u00ed\u0161e ne\u017e konstruk\u010dn\u011b \u0159\u00edzen\u00e1, bude 5052 nebo 3005 obvykle lep\u0161\u00ed a levn\u011bj\u0161\u00ed volbou.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hlin\u00edkov\u00fd plech a tenk\u00fd plech 5454: Formy, rozm\u011bry a stavy 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\/05\/Plate-Sheet-Coil-and-Product-Forms.png\" alt=\"\" class=\"wp-image-10608\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Plate-Sheet-Coil-and-Product-Forms.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Plate-Sheet-Coil-and-Product-Forms-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Plate-Sheet-Coil-and-Product-Forms-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Plate-Sheet-Coil-and-Product-Forms-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Plate-Sheet-Coil-and-Product-Forms-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">5454 je p\u0159ev\u00e1\u017en\u011b ploch\u00e1 v\u00e1lcovan\u00e1 slitina a rozli\u0161en\u00ed plech versus tenk\u00fd plech je prvn\u00ed v\u011bc, kterou je t\u0159eba vy\u0159e\u0161it p\u0159i specifikaci. D\u011bl\u00edc\u00ed linie je jmenovit\u00e1 tlou\u0161\u0165ka: tenk\u00fd plech sah\u00e1 od p\u0159ibli\u017en\u011b 0,5 mm do 6 mm a plech za\u010d\u00edn\u00e1 na 6 mm. Plech se pou\u017e\u00edv\u00e1 pro sva\u0159ovan\u00e9 pl\u00e1\u0161t\u011b, p\u0159ep\u00e1\u017eky a konstruk\u010dn\u00ed prvky, kde tlou\u0161\u0165ka nese zat\u00ed\u017een\u00ed; hlin\u00edkov\u00fd tenk\u00fd plech 5454 se pou\u017e\u00edv\u00e1 pro tvarovan\u00e9 vlo\u017eky n\u00e1dr\u017e\u00ed, p\u0159ep\u00e1\u017eky odd\u011blen\u00ed a obklady, kde je panel tvarov\u00e1n sp\u00ed\u0161e ne\u017e nosn\u00fd.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Formul\u00e1\u0159<\/th><th>Tlou\u0161\u0165ka \/ rozsah rozm\u011br\u016f<\/th><th>B\u011b\u017en\u00e9 stavy<\/th><\/tr><\/thead><tbody><tr><td>Plech a svitek<\/td><td>0,5 \u2013 6 mm<\/td><td>O, H32, H34, H38<\/td><\/tr><tr><td>Deska<\/td><td>6 \u2013 80 mm<\/td><td>H32, H34, H111, H112<\/td><\/tr><tr><td>Ty\u010d (kruhov\u00e1, ploch\u00e1, \u010dtvercov\u00e1)<\/td><td>6 \u2013 300 mm<\/td><td>O, H111, H112<\/td><\/tr><tr><td>Trubka a potrub\u00ed (beze\u0161v\u00e9 \/ sva\u0159ovan\u00e9)<\/td><td>Vn\u011bj\u0161\u00ed pr\u016fm\u011br 6 \u2013 400 mm, st\u011bna 0,5 \u2013 40 mm<\/td><td>O, H32, H34, H111, H112<\/td><\/tr><tr><td>Extrudovan\u00fd profil<\/td><td>Na vy\u017e\u00e1d\u00e1n\u00ed<\/td><td>H111, H112<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">N\u011bkolik praktick\u00fdch pozn\u00e1mek k specifikaci hlin\u00edkov\u00e9ho plechu a desky 5454:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Siln\u011bj\u0161\u00ed deska je t\u00e9m\u011b\u0159 v\u017edy H112 nebo H32.<\/strong> Za studena zpevn\u011bn\u00e9 stavy je obt\u00ed\u017en\u00e9 vyr\u00e1b\u011bt a jsou m\u00e9n\u011b u\u017eite\u010dn\u00e9 nad p\u0159ibli\u017en\u011b 25 mm, tak\u017ee siln\u00e9 pr\u016f\u0159ezy p\u0159ich\u00e1zej\u00ed ve stavu po v\u00e1lcov\u00e1n\u00ed za tepla nebo stabilizovan\u00e9m stavu.<\/li>\n\n\n\n<li><strong>H38 je stav pro plech a tenkou desku.<\/strong> Dosahuje 370 MPa, ale ta\u017enost kles\u00e1 na 8 %, tak\u017ee se hod\u00ed pro ot\u011bruvzdorn\u00e9 podlahy a netvarovan\u00e9 d\u00edly, nikoli pro cokoli s polom\u011brem.<\/li>\n\n\n\n<li><strong>Standardn\u00ed hlin\u00edkov\u00fd plech 5454 se oh\u00fdb\u00e1 t\u011bsn\u011bji ne\u017e deska.<\/strong> Ve stavu H32 tenk\u00fd plech sn\u00e1\u0161\u00ed polom\u011bry ohybu bl\u00ed\u017e\u00edc\u00ed se tlou\u0161\u0165ce materi\u00e1lu; deska ve stavu H34 obecn\u011b vy\u017eaduje polom\u011br jedn\u00e9 a\u017e dvojn\u00e1sobku tlou\u0161\u0165ky a siln\u011bj\u0161\u00ed pr\u016f\u0159ezy pot\u0159ebuj\u00ed v\u00edce.<\/li>\n\n\n\n<li><strong>Ty\u010de a trubky p\u0159ich\u00e1zej\u00ed v jin\u00fdch stavech ne\u017e plech.<\/strong> Rozsah H32\/H34 je ozna\u010den\u00ed pro ploch\u00e9 v\u00e1lcovan\u00e9 v\u00fdrobky; ty\u010de, trubky a extrudovan\u00e9 profily se dod\u00e1vaj\u00ed ve stavu O, H111 nebo H112. Nep\u0159en\u00e1\u0161ejte stav plechu na specifikaci ty\u010de nebo profilu bez potvrzen\u00ed.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Odolnost proti korozi a provozn\u00ed limity<\/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\/05\/Why-5454-Resists-SCC.png\" alt=\"\" class=\"wp-image-10610\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Why-5454-Resists-SCC.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Why-5454-Resists-SCC-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Why-5454-Resists-SCC-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Why-5454-Resists-SCC-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Why-5454-Resists-SCC-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">5454 odol\u00e1v\u00e1 mo\u0159sk\u00e9 vod\u011b, mo\u0159sk\u00e9 atmosf\u00e9\u0159e, pr\u016fmyslov\u00e9mu odpadu a \u0159ad\u011b chemick\u00fdch expozic. M\u00edrn\u00fd obsah ho\u0159\u010d\u00edku udr\u017euje vysokou obecnou odolnost proti korozi, zat\u00edmco omezen\u00e9 chemick\u00e9 slo\u017een\u00ed odstra\u0148uje cestu senzibilizace, kter\u00e1 omezuje slitiny s vy\u0161\u0161\u00edm obsahem ho\u0159\u010d\u00edku. Tato kombinace \u2014 odolnost proti korozi, sva\u0159itelnost a tepeln\u00e1 stabilita v jedn\u00e9 slitin\u011b \u2014 je to, co \u010din\u00ed 5454 standardn\u00edm materi\u00e1lem pro skladov\u00e1n\u00ed dusi\u010dnanu amonn\u00e9ho a ur\u010dit\u00fdch petrochemick\u00fdch l\u00e1tek a pro karoserie silni\u010dn\u00edch cisteren a procesn\u00ed n\u00e1doby, kde obsah p\u0159ich\u00e1z\u00ed tepl\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dva limity, kter\u00e9 je t\u0159eba m\u00edt na pam\u011bti. 5454 nen\u00ed volbou pro trval\u00e9 pono\u0159en\u00ed do mo\u0159sk\u00e9 vody na siln\u011b zat\u00ed\u017een\u00e9 konstrukci: 5083 a 5086 jsou pevn\u011bj\u0161\u00ed a jsou uzn\u00e1van\u00fdmi jakostmi pro trupov\u00e9 plechy, a pokud jejich teplotn\u00ed strop nen\u00ed omezen\u00edm, jsou lep\u0161\u00ed specifikac\u00ed. A jako ka\u017ed\u00e1 hlin\u00edkov\u00e1 slitina, 5454 rychle koroduje p\u0159i elektrick\u00e9m spojen\u00ed s u\u0161lechtilej\u0161\u00edm kovem ve vlhk\u00e9m prost\u0159ed\u00ed, tak\u017ee p\u0159\u00edm\u00fd kontakt s ocel\u00ed nebo slitinami m\u011bdi vy\u017eaduje izola\u010dn\u00ed bari\u00e9ru.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Pr\u00e1ce s 5454<\/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\/05\/Working-With-5454.png\" alt=\"\" class=\"wp-image-10609\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Working-With-5454.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Working-With-5454-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Working-With-5454-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Working-With-5454-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Working-With-5454-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Sva\u0159ov\u00e1n\u00ed.<\/strong> GTAW (TIG), GMAW (MIG), odporov\u00e9 sva\u0159ov\u00e1n\u00ed a sva\u0159ov\u00e1n\u00ed t\u0159en\u00edm s m\u00edch\u00e1n\u00edm v\u0161echny funguj\u00ed. Rozhodnut\u00ed o p\u0159\u00eddavn\u00e9m materi\u00e1lu je to, na \u010dem skute\u010dn\u011b z\u00e1le\u017e\u00ed:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>V\u00fdpl\u0148<\/th><th>Chemick\u00e9 slo\u017een\u00ed<\/th><th>Pevnost ve stavu po sva\u0159ov\u00e1n\u00ed<\/th><th>Vliv na v\u00fdkonnost p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch<\/th><\/tr><\/thead><tbody><tr><td>ER5356<\/td><td>Al-5 % Mg<\/td><td>Vy\u0161\u0161\u00ed<\/td><td>M\u00edrn\u011b sni\u017euje odolnost z\u00f3ny svaru proti SCC v tepl\u00e9m provozu<\/td><\/tr><tr><td>ER5554<\/td><td>Al-2,7 % Mg<\/td><td>M\u00edrn\u011b ni\u017e\u0161\u00ed<\/td><td>Odpov\u00edd\u00e1 z\u00e1kladn\u00edmu kovu; zachov\u00e1v\u00e1 pln\u00e9 tepeln\u00e9 a korozn\u00ed hodnocen\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pro konstruk\u010dn\u00ed spoje a cokoli, co bude pracovat v tepl\u00e9m stavu, je ER5554 standardn\u00edm doporu\u010den\u00edm, proto\u017ee odpov\u00edd\u00e1 z\u00e1kladn\u00ed slitin\u011b a udr\u017euje korozn\u00ed chov\u00e1n\u00ed z\u00f3ny svaru konzistentn\u00ed s deskou. ER5356 je spr\u00e1vn\u00e1 volba tam, kde dominuje pevnost ve stavu po sva\u0159ov\u00e1n\u00ed a provozn\u00ed teplota z\u016fst\u00e1v\u00e1 n\u00edzk\u00e1. Pro pr\u00e1ci podle norem mus\u00ed b\u00fdt p\u0159\u00eddavn\u00fd materi\u00e1l potvrzen proti specifikaci sva\u0159ovac\u00edho postupu a n\u00e1vrhov\u00e9 teplot\u011b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nen\u00ed vy\u017eadov\u00e1no p\u0159edeh\u0159ev ani tepeln\u00e9 zpracov\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed. Jako u ka\u017ed\u00e9 tepeln\u011b neztvrditeln\u00e9 slitiny, tepeln\u011b ovlivn\u011bn\u00e1 z\u00f3na se vrac\u00ed k pevnosti v \u017e\u00edhan\u00e9m stavu a nelze ji obnovit tepeln\u00fdm zpracov\u00e1n\u00edm \u2014 navrhujte spoj podle \u017e\u00edhan\u00fdch hodnot, nikoli podle stavu z\u00e1kladn\u00edho kovu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Tv\u00e1\u0159en\u00ed.<\/strong> 5454 se dob\u0159e tv\u00e1\u0159\u00ed ve stavu O a H32. Hlubok\u00e9 ta\u017een\u00ed a oh\u00fdb\u00e1n\u00ed s t\u011bsn\u00fdm polom\u011brem jsou praktick\u00e9 ve stavu O; pr\u00e1ce na oh\u00fdba\u010dce na desce 6\u20138 mm je b\u011b\u017en\u00e1 ve stavu H32 bez mezioh\u0159evu. Jeho rychlost deforma\u010dn\u00edho zpevn\u011bn\u00ed se nach\u00e1z\u00ed mezi 5052 a 5083 \u2014 dostate\u010dn\u00e1 k rychl\u00e9mu budov\u00e1n\u00ed pevnosti, ale ne takov\u00e1, aby se tv\u00e1\u0159en\u00ed stalo v\u00edcestup\u0148ovou operac\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Obr\u00e1b\u011bn\u00ed.<\/strong> P\u0159ijateln\u00e9 a\u017e st\u0159edn\u00ed, a znateln\u011b lep\u0161\u00ed ve stavu H34 ne\u017e v m\u011bk\u010d\u00edch stavech. O\u010dek\u00e1vejte lepiv\u00e9 t\u0159\u00edsky a n\u00e1r\u016fstek na hran\u011b, tak\u017ee pou\u017e\u00edvejte ostr\u00e9 n\u00e1stroje, vysok\u00e9 \u0159ezn\u00e9 rychlosti a vydatn\u00e9 maz\u00e1n\u00ed. Tam, kde je d\u00edl ur\u010den sp\u00ed\u0161e obr\u00e1b\u011bn\u00edm ne\u017e jako n\u00e1doba, je 6061-T6 lep\u0161\u00edm v\u00fdchoz\u00edm bodem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u017d\u00edh\u00e1n\u00ed.<\/strong> Odstra\u0148ov\u00e1n\u00ed zbytkov\u00e9ho nap\u011bt\u00ed se obvykle prov\u00e1d\u00ed p\u0159i p\u0159ibli\u017en\u011b 343 \u00b0C (650 \u00b0F) s chlazen\u00edm na vzduchu. Trval\u00e9 vystaven\u00ed nad p\u0159ibli\u017en\u011b 220 \u00b0C je t\u0159eba se vyhnout, proto\u017ee zm\u011bk\u010duje za studena zpevn\u011bnou strukturu m\u00edsto aby ji obnovovalo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Eloxov\u00e1n\u00ed.<\/strong> Stoj\u00ed za to v\u011bd\u011bt, ne\u017e se to stane probl\u00e9mem: slitiny 5xxx se anodizuj\u00ed do tlumen\u00e9 \u0161ed\u00e9, nikoli do jasn\u00e9ho, jednotn\u00e9ho povrchu, kter\u00fd produkuj\u00ed extrudovan\u00e9 jakosti 6xxx. Pokud v\u00fdkres vy\u017eaduje dekorativn\u00ed anodizovan\u00fd vzhled, 5454 je nespr\u00e1vn\u00e1 slitina a tento po\u017eadavek by m\u011bl b\u00fdt vznesen v dob\u011b specifikace, ne po anodizaci.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5454 vs 5052 vs 5083 vs 6061<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Slitina a temper<\/th><th>Pevnost v tahu (MPa)<\/th><th>Mez kluzu (MPa)<\/th><th>Prodlou\u017een\u00ed (%)<\/th><th>Tvrdost (HB)<\/th><th>Tepl\u00fd provoz<\/th><th>Nejlep\u0161\u00ed pro<\/th><\/tr><\/thead><tbody><tr><td><strong>5454-H32<\/strong><\/td><td>275<\/td><td>207<\/td><td>10<\/td><td>73<\/td><td>~150 \u00b0C<\/td><td>Sva\u0159ovan\u00e9 tlakov\u00e9 n\u00e1doby, tepl\u00e9 chemick\u00e9 a mo\u0159sk\u00e9 aplikace<\/td><\/tr><tr><td><strong>5454-H34<\/strong><\/td><td>305<\/td><td>241<\/td><td>10<\/td><td>81<\/td><td>~150 \u00b0C<\/td><td>Nosn\u00e9 pl\u00e1\u0161t\u011b n\u00e1dr\u017e\u00ed, karoserie cisteren<\/td><\/tr><tr><td><strong><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-5052\/\" data-type=\"product\" data-id=\"2936\">5052-H32<\/a><\/strong><\/td><td>228<\/td><td>193<\/td><td>12<\/td><td>60<\/td><td>Ni\u017e\u0161\u00ed pevnost za tepla<\/td><td>Obecn\u00fd plechov\u00fd kov, palivov\u00e9 n\u00e1dr\u017ee, kryty<\/td><\/tr><tr><td><strong><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-5083\/\" data-type=\"product\" data-id=\"6132\">5083-H116<\/a><\/strong><\/td><td>317<\/td><td>228<\/td><td>16<\/td><td>\u2014<\/td><td>Limit ~65 \u00b0C<\/td><td>Trupov\u00e9 plechy, kryogenn\u00ed z\u00e1sobn\u00edky<\/td><\/tr><tr><td><strong><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/hlinikovy-plech-6061\/\" data-type=\"product\" data-id=\"8950\">6061-T6<\/a><\/strong><\/td><td>310<\/td><td>276<\/td><td>12<\/td><td>95<\/td><td>Pevnost kles\u00e1 s teplem<\/td><td>Konstruk\u010dn\u00ed r\u00e1my, obr\u00e1b\u011bn\u00e9 sou\u010d\u00e1sti<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5454 vs 5052.<\/strong> 5052 je levn\u011bj\u0161\u00ed, b\u011b\u017en\u011bji skladem dostupn\u00e1 univerz\u00e1ln\u00ed slitina Al-Mg pro plechy. 5454 p\u0159id\u00e1v\u00e1 mangan a chrom, co\u017e zvy\u0161uje pevnost v tahu p\u0159ibli\u017en\u011b o 20 % p\u0159i srovnateln\u00e9 \u00farovni ho\u0159\u010d\u00edku a \u2014 co\u017e je d\u016fle\u017eit\u011bj\u0161\u00ed \u2014 zlep\u0161uje udr\u017een\u00ed pevnosti a korozn\u00ed chov\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed p\u0159i zv\u00fd\u0161en\u00fdch teplot\u00e1ch. Zvolte 5052 pro obecnou v\u00fdrobu \u0159\u00edzenou n\u00e1klady bez tepeln\u00fdch po\u017eadavk\u016f; zvolte 5454, kdy\u017e n\u00e1doba nebo n\u00e1dr\u017e pracuje v tepl\u00e9m stavu nebo podl\u00e9h\u00e1 kvalifika\u010dn\u00edmu schv\u00e1len\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5454 vs 5083.<\/strong> 5083 je p\u0159i pokojov\u00e9 teplot\u011b p\u0159ibli\u017en\u011b o 10\u201312 % pevn\u011bj\u0161\u00ed a je standardn\u00ed jakost\u00ed pro trupov\u00e9 plechy. Tak\u00e9 m\u00e1 limit senzibilizace ~65 \u00b0C. Pokud n\u00e1vrhov\u00e1 teplota p\u0159ekro\u010d\u00ed tuto hranici, 5454 je specifikovanou slitinou \u2014 n\u00e1dr\u017ee pro chemickou p\u0159epravu, n\u00e1doby pro asfalt a tepl\u00e9 procesy a sou\u010d\u00e1sti mo\u0159sk\u00e9ho v\u00fdfukov\u00e9ho syst\u00e9mu jsou klasick\u00e9 p\u0159\u00edpady. Pokud ji nep\u0159ekro\u010d\u00ed, extra pevnost a n\u00e1mo\u0159n\u00ed certifikace 5083 obvykle vyhraj\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5454 vs 6061.<\/strong> R\u016fzn\u00e9 kategorie. 6061-T6 je tepeln\u011b ztvrditeln\u00fd, p\u0159ibli\u017en\u011b srovnateln\u00fd v pevnosti v tahu, mnohem l\u00e9pe obrobiteln\u00fd a standardn\u00ed volba pro konstruk\u010dn\u00ed a obr\u00e1b\u011bn\u00e9 d\u00edly. Ale nen\u00ed v\u00fdchoz\u00ed jakost\u00ed pro tlakov\u00e9 n\u00e1doby nebo chemick\u00e9 aplikace a hol\u00fd 6061 koroduje v mo\u0159sk\u00e9 vod\u011b a mnoha chemik\u00e1li\u00edch. Tam, kde korozn\u00ed integrita a sva\u0159itelnost z\u00e1le\u017e\u00ed v\u00edce ne\u017e obrobitelnost, je 5454 odpov\u011bd\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Go\/No-Go: Kdy specifikovat 5454<\/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\/05\/Applications-GoNo-Go-Selection.png\" alt=\"\" class=\"wp-image-10606\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Applications-GoNo-Go-Selection.png 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Applications-GoNo-Go-Selection-300x225.png 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Applications-GoNo-Go-Selection-768x576.png 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Applications-GoNo-Go-Selection-16x12.png 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2025\/05\/Applications-GoNo-Go-Selection-600x450.png 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Specifikujte 5454, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Trval\u00e1 provozn\u00ed teplota se pohybuje p\u0159ibli\u017en\u011b mezi 65 \u00b0C a 150 \u00b0C a prost\u0159ed\u00ed zahrnuje slanou vodu, chemik\u00e1lie nebo pr\u016fmyslov\u00fd odpad \u2014 toto je definuj\u00edc\u00ed rozsah pro 5454<\/li>\n\n\n\n<li>Aplikace je sva\u0159ovan\u00e1 tlakov\u00e1 n\u00e1doba nebo skladovac\u00ed n\u00e1dr\u017e vy\u017eaduj\u00edc\u00ed kvalifikaci dle p\u0159edpis\u016f<\/li>\n\n\n\n<li>Odolnost proti korozi, sva\u0159itelnost a tepeln\u00e1 stabilita jsou v\u0161echny vy\u017eadov\u00e1ny v jednom materi\u00e1lu<\/li>\n\n\n\n<li>D\u00edl je v\u00e1lcovan\u00fd plech nebo tabule, kter\u00e9 budou tv\u00e1\u0159eny a sva\u0159ov\u00e1ny<\/li>\n\n\n\n<li>Pot\u0159ebujete st\u0159edn\u00ed pevnost s dolo\u017een\u00fdm hutn\u00edm atestem<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Hledejte jinde, kdy\u017e:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pevnost v tahu za pokojov\u00e9 teploty nad p\u0159ibli\u017en\u011b 330 MPa je prim\u00e1rn\u00ed po\u017eadavek \u2014 5083-H116 je pevn\u011bj\u0161\u00ed a 6061-T6 nebo 7075-T6 jsou je\u0161t\u011b pevn\u011bj\u0161\u00ed, pokud je p\u0159ijateln\u00e1 tepeln\u011b zpracovateln\u00e1 slitina<\/li>\n\n\n\n<li>Trval\u00e1 provozn\u00ed teplota p\u0159ekra\u010duje p\u0159ibli\u017en\u011b 150 \u00b0C nebo \u0161pi\u010dky p\u0159esahuj\u00ed p\u0159ibli\u017en\u011b 200 \u00b0C \u2014 hlin\u00edk v tomto rozsahu rychle ztr\u00e1c\u00ed pevnost a nerezov\u00e1 ocel nebo niklov\u00e9 slitiny se st\u00e1vaj\u00ed standardn\u00ed volbou<\/li>\n\n\n\n<li>Je specifikov\u00e1n leskl\u00fd, rovnom\u011brn\u00fd eloxovan\u00fd povrch \u2014 slitiny \u0159ady 5xxx se eloxuj\u00ed do matn\u011b \u0161ed\u00e9 barvy<\/li>\n\n\n\n<li>Trval\u00e9 pono\u0159en\u00ed do mo\u0159sk\u00e9 vody na zat\u00ed\u017een\u00e9 konstrukci \u2014 5083 nebo 5086 ve stavu H116\/H321<\/li>\n\n\n\n<li>Velkoobjemov\u00e9 CNC obr\u00e1b\u011bn\u00ed je prim\u00e1rn\u00ed v\u00fdrobn\u00ed metoda \u2014 6061-T6 nebo 7075-T6 se obr\u00e1b\u011bj\u00ed mnohem l\u00e9pe<\/li>\n\n\n\n<li>N\u00e1klady jsou dominantn\u00edm omezen\u00edm a neexistuje tepeln\u00fd po\u017eadavek \u2014 5052 nebo 5754 ud\u011blaj\u00ed stejnou pr\u00e1ci za m\u00e9n\u011b<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Kde se 5454 pou\u017e\u00edv\u00e1<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Sektor<\/th><th>Typick\u00e9 d\u00edly<\/th><th>Pro\u010d 5454<\/th><\/tr><\/thead><tbody><tr><td>Chemick\u00e9 zpracov\u00e1n\u00ed<\/td><td>Skladovac\u00ed n\u00e1dr\u017ee, p\u0159epravn\u00ed n\u00e1doby, potrub\u00ed pro dusi\u010dnany a petrochemik\u00e1lie<\/td><td>Odolnost proti korozi za zv\u00fd\u0161en\u00fdch teplot plus sva\u0159itelnost<\/td><\/tr><tr><td>Tlakov\u00e9 n\u00e1doby<\/td><td>Sva\u0159ovan\u00e9 n\u00e1doby dle ASME pro st\u0159edn\u011bteplotn\u00ed provoz<\/td><td>Uzn\u00e1n\u00ed dle p\u0159edpis\u016f a zachovan\u00e1 pevnost do ~150 \u00b0C<\/td><\/tr><tr><td>Doprava<\/td><td>Korby silni\u010dn\u00edch cisteren, \u017eelezni\u010dn\u00ed cisternov\u00e9 vozy, pl\u00e1\u0161t\u011b palivov\u00fdch a chemick\u00fdch n\u00e1dr\u017e\u00ed<\/td><td>Pom\u011br pevnosti k hmotnosti s toleranc\u00ed tepl\u00e9ho n\u00e1kladu<\/td><\/tr><tr><td>N\u00e1mo\u0159n\u00ed a offshore<\/td><td>V\u00fdfukov\u00e9 komponenty, potrub\u00ed chladic\u00ed vody, n\u00e1dr\u017ee pro tepl\u00e9 procesy, palubn\u00ed kov\u00e1n\u00ed<\/td><td>Odolnost proti mo\u0159sk\u00e9 korozi tam, kde plat\u00ed teplotn\u00ed limit 5083<\/td><\/tr><tr><td>Pr\u016fmyslov\u00e1 za\u0159\u00edzen\u00ed<\/td><td>Pl\u00e1\u0161t\u011b v\u00fdm\u011bn\u00edk\u016f tepla, procesn\u00ed potrub\u00ed, komponenty scrubber\u016f<\/td><td>Tepeln\u00e1 stabilita p\u0159i trval\u00e9m zat\u00ed\u017een\u00ed<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdhody a omezen\u00ed na prvn\u00ed pohled<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Rozm\u011br<\/th><th>V\u00fdhoda<\/th><th>Pozor na<\/th><\/tr><\/thead><tbody><tr><td>Zv\u00fd\u0161en\u00e1 teplota<\/td><td>Dimenzov\u00e1no na ~150 \u00b0C trvale, kde 5083 kon\u010d\u00ed na ~65 \u00b0C<\/td><td>Pevnost st\u00e1le kles\u00e1; nad ~200 \u00b0C hledejte jin\u00e9 materi\u00e1ly<\/td><\/tr><tr><td>Koroze<\/td><td>Vynikaj\u00edc\u00ed odolnost proti mo\u0159sk\u00e9 vod\u011b, chemik\u00e1li\u00edm a pr\u016fmyslov\u00e9mu odpadu<\/td><td>Nen\u00ed pro zat\u00ed\u017een\u00e9 trval\u00e9 pono\u0159en\u00ed do mo\u0159sk\u00e9 vody<\/td><\/tr><tr><td>Sva\u0159itelnost<\/td><td>\u010cist\u00e9 TIG\/MIG\/FSW; \u017e\u00e1dn\u00e9 p\u0159edeh\u0159\u00edv\u00e1n\u00ed ani tepeln\u00e9 zpracov\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed<\/td><td>HAZ se vrac\u00ed k pevnosti \u017e\u00edhan\u00e9ho stavu \u2014 dimenzujte podle toho<\/td><\/tr><tr><td>Odolnost proti SCC<\/td><td>Pevn\u00fd, v\u010detn\u011b sva\u0159ovan\u00fdch spoj\u016f<\/td><td>Volba p\u0159\u00eddavn\u00e9ho materi\u00e1lu je d\u016fle\u017eit\u00e1 \u2014 ER5554 pro tepl\u00fd provoz<\/td><\/tr><tr><td>S\u00edla<\/td><td>Vy\u0161\u0161\u00ed ne\u017e 5052 p\u0159i srovnateln\u00e9m obsahu Mg<\/td><td>Ni\u017e\u0161\u00ed ne\u017e 5083 a v\u00fdrazn\u011b ni\u017e\u0161\u00ed ne\u017e 6061-T6<\/td><\/tr><tr><td>Tvarovatelnost<\/td><td>Dobr\u00fd ve stavu O a H32; stabilizace H3x pom\u00e1h\u00e1 sva\u0159ovan\u00fdm prac\u00edm<\/td><td>H38 je stav plechu s ta\u017enost\u00ed 8 %<\/td><\/tr><tr><td>Obr\u00e1b\u011bn\u00ed<\/td><td>Obratiteln\u00fd<\/td><td>Lepkav\u00e9 t\u0159\u00edsky; za 6061 s jasn\u00fdm odstupem<\/td><\/tr><tr><td>Povrchov\u00e1 \u00faprava<\/td><td>Dob\u0159e p\u0159ij\u00edm\u00e1 barvu, pr\u00e1\u0161kov\u00fd n\u00e1t\u011br a hutn\u00ed povrch<\/td><td>Eloxuje se do matn\u011b \u0161ed\u00e9 \u2014 nen\u00ed dekorativn\u00ed slitina<\/td><\/tr><tr><td>N\u00e1klady a dostupnost<\/td><td>Standardn\u00ed v\u00fdrobek z tabul\u00ed a plech\u016f<\/td><td>Cenov\u011b nad 5052; speci\u00e1ln\u00ed jakost<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">5454 existuje proto, \u017ee slitiny hlin\u00edku a ho\u0159\u010d\u00edku ztr\u00e1cej\u00ed spolehlivost, kdy\u017e se zah\u0159ej\u00ed \u2014 a n\u011bkter\u00e9 aplikace to nemohou tolerovat. Omezen\u00edm ho\u0159\u010d\u00edku na 3,0 % a p\u0159id\u00e1n\u00edm manganu a chromu si udr\u017euje u\u017eite\u010dnou pevnost a odolnost proti korozi do p\u0159ibli\u017en\u011b 150 \u00b0C, tedy za bodem, kde 5083 a 5456 za\u010d\u00ednaj\u00ed senzibilizovat, a z\u00edsk\u00e1v\u00e1 uzn\u00e1n\u00ed ASME pro tlakov\u00e9 aplikace za zv\u00fd\u0161en\u00fdch teplot. Cenou je st\u0159edn\u00ed pevnost v\u016f\u010di 5083 za pokojov\u00e9 teploty, matn\u00fd eloxovan\u00fd povrch a p\u0159\u00edplatek v\u016f\u010di 5052 \u2014 spravedliv\u00e9 kompromisy, kdy\u017e n\u00e1doba pracuje v teple a spoj je sva\u0159ovan\u00fd, \u0161patn\u00e9 volby pro kryt za pokojov\u00e9 teploty nebo obr\u00e1b\u011bn\u00fd dr\u017e\u00e1k. Stanovte tedy nejprve n\u00e1vrhovou teplotu, pot\u00e9 stav materi\u00e1lu a zbytek rozhodnut\u00ed se ud\u011bl\u00e1 s\u00e1m. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Spole\u010dnost Linsy Aluminum dod\u00e1v\u00e1 <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/5454-hlinikova-slitina\/\" data-type=\"product\" data-id=\"7803\">5454 v tabul\u00edch, plechu, svitc\u00edch, ty\u010d\u00edch, trubk\u00e1ch,<\/a> a vytla\u010dovan\u00fd profil v b\u011b\u017en\u00fdch stavech, s vlastn\u00edm obr\u00e1b\u011bn\u00edm, sva\u0159ov\u00e1n\u00edm, laserov\u00fdm \u0159ez\u00e1n\u00edm, eloxov\u00e1n\u00edm a le\u0161t\u011bn\u00edm \u2014 po\u0161lete sv\u016fj v\u00fdkres s n\u00e1vrhovou teplotou a detaily svaru a my p\u0159ed z\u00e1vazkem zkontrolujeme mez pou\u017eitelnosti a p\u0159\u00eddavn\u00fd materi\u00e1l.<\/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\">Co \u010din\u00ed hlin\u00edk 5454 vhodn\u00fdm pro provoz za zv\u00fd\u0161en\u00fdch teplot?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Obsah ho\u0159\u010d\u00edku je omezen na 3,01 %. Nad p\u0159ibli\u017en\u011b 3 % Mg se slitiny \u0159ady 5xxx st\u00e1vaj\u00ed n\u00e1chyln\u00fdmi ke korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed nad p\u0159ibli\u017en\u011b 65 \u00b0C, proto\u017ee ho\u0159\u010d\u00edk se vylu\u010duje jako \u03b2-f\u00e1ze (Al\u2083Mg\u2082) pod\u00e9l hranic zrn. Omezen\u00ed ho\u0159\u010d\u00edku a p\u0159id\u00e1n\u00ed chromu k potla\u010den\u00ed tohoto vylu\u010dov\u00e1n\u00ed udr\u017euje 5454 pou\u017eiteln\u00fd v nep\u0159etr\u017eit\u00e9m provozu do p\u0159ibli\u017en\u011b 150 \u00b0C p\u0159i zachov\u00e1n\u00ed korozn\u00ed odolnosti. N\u00e1vrhov\u00e1 nap\u011bt\u00ed pro tlakov\u00e9 nam\u00e1h\u00e1n\u00ed by v\u0161ak m\u011bla b\u00fdt i nad\u00e1le p\u0159eb\u00edr\u00e1na z p\u0159\u00edslu\u0161n\u00fdch tabulek k\u00f3du pro skute\u010dnou n\u00e1vrhovou teplotu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Jak tvrd\u00fd je hlin\u00edk 5454?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Typick\u00e1 tvrdost podle Brinella se pohybuje kolem 62 HB ve stavu O (\u017e\u00edhan\u00fd), 73 HB ve stavu H32, 81 HB ve stavu H34 a 100 HB ve stavu H38. Stavy H111 a H112 se pohybuj\u00ed p\u0159ibli\u017en\u011b kolem 70 HB, resp. 62 HB. Publikovan\u00e9 hodnoty se pon\u011bkud li\u0161\u00ed podle zdroje a tlou\u0161\u0165ky, proto je berte jako typick\u00e9 a garantovan\u00e9 hodnoty ov\u011b\u0159te podle atestu z v\u00e1lcovny. Tvrdost je u\u017eite\u010dn\u00e1 pro vstupn\u00ed kontrolu; pro v\u00fdpo\u010dty dimenzov\u00e1n\u00ed je t\u0159eba pou\u017e\u00edt pevnost v tahu a mez kluzu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Jak\u00fd je rozd\u00edl mezi 5454-H32 a H34?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oba jsou deforma\u010dn\u011b zpevn\u011bn\u00e9 a stabilizovan\u00e9, tak\u017ee si oba udr\u017euj\u00ed sv\u00e9 vlastnosti a nest\u00e1rnou m\u011bknut\u00edm. H32 je \u010dtvrtinov\u011b tvrzen\u00fd \u2014 p\u0159ibli\u017en\u011b 275 MPa v tahu a 207 MPa mez kluzu \u2014 a je standardn\u00ed volbou pro tv\u00e1\u0159en\u00e9 a sva\u0159ovan\u00e9 n\u00e1doby. H34 je polotvrd\u00fd s p\u0159ibli\u017en\u011b 305 MPa v tahu a 241 MPa mez\u00ed kluzu, pou\u017e\u00edv\u00e1 se pro nosn\u00e9 pl\u00e1\u0161t\u011b, kde je vy\u017eadov\u00e1no m\u00e9n\u011b tv\u00e1\u0159en\u00ed. P\u0159echod z H32 na H34 p\u0159in\u00e1\u0161\u00ed p\u0159ibli\u017en\u011b o 11 % vy\u0161\u0161\u00ed pevnost a stoj\u00ed ur\u010ditou tv\u00e1\u0159itelnost, tak\u017ee H32 z\u016fst\u00e1v\u00e1 bezpe\u010dn\u011bj\u0161\u00ed volbou pro v\u0161e, co se oh\u00fdb\u00e1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Jak\u00fd p\u0159\u00eddavn\u00fd materi\u00e1l by m\u011bl b\u00fdt pou\u017eit pro sva\u0159ov\u00e1n\u00ed slitiny 5454?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">ER5554 je standardn\u00ed doporu\u010den\u00ed pro konstruk\u010dn\u00ed spoje a v\u0161e, co pracuje v teple, proto\u017ee jeho ~2,7 % ho\u0159\u010d\u00edku odpov\u00edd\u00e1 z\u00e1kladn\u00ed slitin\u011b a zachov\u00e1v\u00e1 korozn\u00ed odolnost a tepelnou klasifikaci z\u00f3ny svaru. ER5356 poskytuje vy\u0161\u0161\u00ed pevnost ve stavu po sva\u0159ov\u00e1n\u00ed, ale m\u00edrn\u011b sni\u017euje odolnost z\u00f3ny svaru v\u016f\u010di SCC za zv\u00fd\u0161en\u00fdch teplot, tak\u017ee se hod\u00ed pro n\u00edzkoteplotn\u00ed provoz, kde dominuje pevnost. Pro tlakov\u00e9 pr\u00e1ce kvalifikovan\u00e9 podle k\u00f3du ov\u011b\u0159te p\u0159\u00eddavn\u00fd materi\u00e1l v\u016f\u010di specifikaci sva\u0159ovac\u00edho postupu a n\u00e1vrhov\u00e9 teplot\u011b.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Je 5454 tot\u00e9\u017e jako 5754?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ne \u2014 jsou p\u0159\u00edbuzn\u00e9, ale nejsou zam\u011bniteln\u00e9. 5754 je slitina Al-Mg s 2,6\u20133,6 % ho\u0159\u010d\u00edku a bez p\u0159id\u00e1n\u00ed chromu; \u0161iroce se pou\u017e\u00edv\u00e1 pro automobilov\u00e9 a v\u0161eobecn\u00e9 plechov\u00e9 pr\u00e1ce, kde je nejd\u016fle\u017eit\u011bj\u0161\u00ed hlubok\u00e1 tv\u00e1\u0159itelnost. 5454 p\u0159id\u00e1v\u00e1 mangan pro p\u0159ibli\u017en\u011b o 10\u201315 % vy\u0161\u0161\u00ed pevnost a chrom pro kontrolu hranic zrn, co\u017e zlep\u0161uje jeho odolnost proti korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed a tepelnou klasifikaci. Pokud specifikace vy\u017eaduje tlakovou n\u00e1dobu nebo tepl\u00fd chemick\u00fd provoz, spr\u00e1vnou jakost\u00ed je 5454 a 5754 nen\u00ed n\u00e1hradou.<\/p>","protected":false},"excerpt":{"rendered":"<p>What Is 5454 Aluminum? 5454 is the 5xxx alloy built for a specific problem: aluminium-magnesium grades that are strong and corrosion-resistant at room temperature, but that become unreliable when they get warm. Its magnesium content is capped at 3.0%, keeping it just under the threshold where high-magnesium grades such as 5083 (4.0\u20134.9% Mg) and 5456 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":10605,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"5454 Aluminum: Properties, Plate & Sheet, Tempers","_seopress_titles_desc":"A practical 5454 aluminum guide: composition, hardness and strength by temper, full plate and sheet sizes, ASME service limits, and where 5454 beats 5052.","_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-8735","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-5000_6000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8735","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=8735"}],"version-history":[{"count":3,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8735\/revisions"}],"predecessor-version":[{"id":10611,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8735\/revisions\/10611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10605"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=8735"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=8735"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=8735"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}