{"id":8646,"date":"2025-05-05T05:34:17","date_gmt":"2025-05-05T05:34:17","guid":{"rendered":"https:\/\/premiumalu.com\/5005-aluminum-hardness-a-comprehensive-guide\/"},"modified":"2026-09-20T12:35:12","modified_gmt":"2026-09-20T12:35:12","slug":"5005-tvrdost-hliniku-komplexni-pruvodce","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/5005-aluminum-hardness-a-comprehensive-guide\/","title":{"rendered":"Zkoum\u00e1n\u00ed hlin\u00edkov\u00e9 slitiny 5005: Vydejte se na cestu za pozn\u00e1n\u00edm: komplexn\u00ed pr\u016fvodce"},"content":{"rendered":"
Co je hlin\u00edk 5005?<\/h2>\n\n\n\n
5005 je n\u00edzkoho\u0159\u010d\u00edkov\u00fd konec rodiny 5xxx, obsahuje p\u0159ibli\u017en\u011b 0,8 % ho\u0159\u010d\u00edku \u2014 v\u00fdrazn\u011b m\u00e9n\u011b ne\u017e 5052 (~2,5 %) nebo 5083 (~4,5 %). Toto jedin\u00e9 \u010d\u00edslo vysv\u011btluje t\u00e9m\u011b\u0159 v\u0161e o n\u011bm. S men\u0161\u00edm mno\u017estv\u00edm ho\u0159\u010d\u00edku 5005 vym\u011b\u0148uje vysokou pevnost sv\u00fdch bratranc\u016f z \u0159ady 5xxx za dv\u011b vlastnosti, pro kter\u00e9 jej kupuj\u00edc\u00ed skute\u010dn\u011b specifikuj\u00ed: vynikaj\u00edc\u00ed odezva na anodizaci<\/strong> a odolnost proti korozi bl\u00edzk\u00e1 3003 p\u0159i ni\u017e\u0161\u00edm obsahu leguj\u00edc\u00edch prvk\u016f<\/strong>. Je standardn\u00ed volbou pro anodizovan\u00e9 architektonick\u00e9 plechy a jeho mechanick\u00e9 vlastnosti se pohybuj\u00ed ve stejn\u00e9m p\u00e1smu jako 3003, nikoli v konstruk\u010dn\u00ed oblasti.<\/p>\n\n\n\n
Je to slitina nevytvrditeln\u00e1 tepeln\u00fdm zpracov\u00e1n\u00edm. Ka\u017ed\u00fd p\u0159\u00edr\u016fstek pevnosti poch\u00e1z\u00ed ze studen\u00e9ho tv\u00e1\u0159en\u00ed, vyj\u00e1d\u0159en\u00e9ho v tvrdostech H, a nelze ji precipita\u010dn\u011b vytvrdit tak jako 6061 nebo 7075. Praktick\u00fdm d\u016fsledkem je, \u017ee tvrdost a pevnost jsou ur\u010deny tvrdost\u00ed, kterou zakoup\u00edte, nikoli \u010d\u00edmkoli, co s d\u00edlem n\u00e1sledn\u011b provedete \u2014 krom\u011b vy\u017e\u00edh\u00e1n\u00ed zp\u011bt na m\u011bkko.<\/p>\n\n\n\n
Existuje tak\u00e9 skute\u010dn\u00e1 v\u00fdhoda, kter\u00e1 b\u00fdv\u00e1 p\u0159ehl\u00ed\u017eena: proto\u017ee 5005 le\u017e\u00ed v\u00fdrazn\u011b pod prahem ~3 % ho\u0159\u010d\u00edku, je nezahrnuje:<\/strong> n\u00e1chyln\u00fd k precipitaci \u03b2-f\u00e1ze (Al\u2083Mg\u2082) na hranic\u00edch zrn, kter\u00e1 omezuje slitiny s vy\u0161\u0161\u00edm obsahem ho\u0159\u010d\u00edku, jako 5083 a 5056, na p\u0159ibli\u017en\u011b 65 \u00b0C p\u0159i trval\u00e9m provozu. Pro tepl\u00e9, m\u00edrn\u011b korozivn\u00ed zat\u00ed\u017een\u00ed 5005 toto omezen\u00ed nenese.<\/p>\n\n\n\n
Mezn\u00ed hodnoty slo\u017een\u00ed podle ASTM B209 \/ EN 573-3, v hmotnostn\u00edch procentech. Ho\u0159\u010d\u00edk je jedin\u00fd z\u00e1m\u011brn\u00fd leguj\u00edc\u00ed prvek v\u00fdznamu; v\u0161e ostatn\u00ed je bu\u010f mal\u00fd \u0159\u00edzen\u00fd p\u0159\u00eddavek, nebo horn\u00ed hranice ne\u010distot.<\/p>\n\n\n\n
Prvek<\/th>
Obsah (%)<\/th>
Role<\/th><\/tr><\/thead>
Ho\u0159\u010d\u00edk (Mg)<\/td>
0.50 \u2013 1.10<\/td>
Hlavn\u00ed leguj\u00edc\u00ed prvek; pevnost a korozn\u00ed chov\u00e1n\u00ed<\/td><\/tr>
K\u0159em\u00edk (Si)<\/td>
max. 0,30<\/td>
Ne\u010distota, udr\u017eovan\u00e1 n\u00edzko pro \u010distotu p\u0159i anodizaci<\/td><\/tr>
P\u0159\u00edsn\u00e9 horn\u00ed hranice pro m\u011b\u010f a k\u0159em\u00edk jsou d\u016fle\u017eit\u011bj\u0161\u00ed, ne\u017e se zd\u00e1. Oba prvky zbarvuj\u00ed anodick\u00fd film \u2014 m\u011b\u010f jej posouv\u00e1 k \u017elut\u00e9, k\u0159em\u00edk k \u0161ed\u00e9 \u2014 co\u017e je d\u016fvod, pro\u010d chemie s n\u00edzk\u00fdm obsahem Cu a Si d\u011bl\u00e1 z 5005 anodiza\u010dn\u00ed slitinu, a ne jen dal\u0161\u00ed jakost 5xxx.<\/p>\n\n\n\n
Tvrdost 5005 podle stavu<\/h2>\n\n\n\n
Tvrdost je m\u00edsto, kde se studen\u011b tv\u00e1\u0159en\u00e1 struktura 5005 projevuje nejp\u0159\u00edmo\u010da\u0159eji. Hodnoty n\u00ed\u017ee jsou typick\u00e9 hodnoty podle Brinella m\u011b\u0159en\u00e9 se zat\u00ed\u017een\u00edm 500 kg a kuli\u010dkou 10 mm (ASTM E10), co\u017e je konvence pou\u017e\u00edvan\u00e1 pro tv\u00e1\u0159en\u00fd hlin\u00edk.<\/p>\n\n\n\n
Temperament<\/th>
Stav<\/th>
Tvrdost podle Brinella (HB)<\/th>
P\u0159ibli\u017en\u00e1 pevnost ve smyku (MPa)<\/th><\/tr><\/thead>
Z t\u00e9to tabulky vypl\u00fdvaj\u00ed t\u0159i v\u011bci.<\/p>\n\n\n\n
Rozsah je \u00fazk\u00fd.<\/strong> V cel\u00e9m rozsahu stav\u016f se 5005 pohybuje od 28 do 51 HB \u2014 m\u00e9n\u011b ne\u017e dvojn\u00e1sobek od vy\u017e\u00edhan\u00e9ho po pln\u011b tvrd\u00fd. Srovnejte to s 6061, kter\u00fd se zhruba ztrojn\u00e1sob\u00ed od O po T6. Pokud v\u00e1\u0161 n\u00e1vrh vy\u017eaduje tvrdost, kterou studen\u00e9 tv\u00e1\u0159en\u00ed nedok\u00e1\u017ee dodat, 5005 je nespr\u00e1vn\u00fd v\u00fdchoz\u00ed bod a \u017e\u00e1dn\u00e1 volba stavu to nesprav\u00ed.<\/p>\n\n\n\n
Tvrdost je n\u00e1stroj pro vstupn\u00ed kontrolu, nikoli n\u00e1vrhov\u00fd vstup.<\/strong> HB je dostate\u010dn\u011b rychl\u00fd a nedestruktivn\u00ed pro kontrolu dod\u00e1vky proti jej\u00edmu MTC a dob\u0159e koreluje s pevnost\u00ed v tahu. Ale \u017e\u00e1dn\u00fd konstrukt\u00e9r nedimenzuje konzolu podle Brinella. Pou\u017eijte HB k potvrzen\u00ed, \u017ee jste obdr\u017eeli objednan\u00fd stav; pro vlastn\u00ed v\u00fdpo\u010det pou\u017eijte pevnost v tahu a mez kluzu.<\/p>\n\n\n\n
Anodizace m\u011bn\u00ed tvrdost povrchu, nikoli tvrdost objemu.<\/strong> Toto je nej\u010dast\u011bj\u0161\u00ed nedorozum\u011bn\u00ed p\u0159i dotazu na tvrdost. Anodick\u00e1 oxidov\u00e1 vrstva je mnohem tvrd\u0161\u00ed ne\u017e substr\u00e1t \u2014 oxid hlinit\u00fd se na stupnici tvrdosti nach\u00e1z\u00ed vysoko nad jakoukoli hlin\u00edkovou slitinou \u2014 tak\u017ee odolnost proti po\u0161kr\u00e1b\u00e1n\u00ed a opot\u0159eben\u00ed se podstatn\u011b zlep\u0161uje. Podkladov\u00fd kov z\u016fst\u00e1v\u00e1 nezm\u011bn\u011bn a panel z 5005-H34 m\u00e1 pod povlakem st\u00e1le 41 HB. Pokud v\u00fdkres \u0159\u00edk\u00e1 \u201ctvrd\u0161\u00ed\u201d, stanovte, zda znamen\u00e1 odolnost povrchu proti opot\u0159eben\u00ed (anodizujte) nebo nosnost (zm\u011b\u0148te slitinu).<\/p>\n\n\n\n
Mechanick\u00e9 vlastnosti 5005 podle stavu<\/h2>\n\n\n\n
Typick\u00e9 hodnoty pro plech a desku. Pozn\u00e1mka: ASTM B209 minim\u00e1ln\u00ed<\/em> hodnoty le\u017e\u00ed pod t\u011bmito \u010d\u00edsly a m\u011bn\u00ed se s tlou\u0161\u0165kou \u2014 garantovan\u00e9 hodnoty pro va\u0161i konkr\u00e9tn\u00ed \u0161ar\u017ei poch\u00e1zej\u00ed z MTC, nikoli z t\u00e9to tabulky.<\/p>\n\n\n\n
Sloupec ta\u017enosti je ten, kter\u00fd rozhoduje o v\u011bt\u0161in\u011b skute\u010dn\u00fdch specifikac\u00ed. P\u0159echod z H32 na H38 z\u00edsk\u00e1 p\u0159ibli\u017en\u011b o 45 % vy\u0161\u0161\u00ed pevnost v tahu a stoj\u00ed t\u00e9m\u011b\u0159 polovinu dostupn\u00e9 ta\u017enosti \u2014 z 11 % na 6 %. Pro ploch\u00fd dekorativn\u00ed panel je tento obchod zdarma. Pro cokoli s tvarovan\u00fdm r\u00e1diusem, lemem nebo v\u00e1lcovanou hranou je H32 nebo H34 stropem a O je odpov\u011bd\u00ed, kdy\u017e je tv\u00e1\u0159en\u00ed n\u00e1ro\u010dn\u00e9.<\/p>\n\n\n\n
Ozna\u010den\u00ed H1x a H3x nejsou zam\u011bniteln\u00e1. Stavy H1x jsou pouze deforma\u010dn\u011b zpevn\u011bn\u00e9; stavy H3x jsou deforma\u010dn\u011b zpevn\u011bn\u00e9 a pot\u00e9<\/em> stabilizovan\u00e9 n\u00edzkoteplotn\u00edm tepeln\u00fdm zpracov\u00e1n\u00edm, kter\u00e9 m\u00edrn\u011b sni\u017euje pevnost a vrac\u00ed v\u00fdznamnou ta\u017enost. Tato stabilizace je d\u016fvodem, pro\u010d v architektonick\u00fdch prac\u00edch dominuj\u00ed H32\/H34 \u2014 extra ta\u017enost p\u0159in\u00e1\u0161\u00ed tva\u0159itelnost a stabilizovan\u00fd stav si udr\u017euje sv\u00e9 vlastnosti m\u00edsto toho, aby na polici st\u00e1rnut\u00edm m\u011bknul.<\/p>\n\n\n\n
Fyzik\u00e1ln\u00ed vlastnosti 5005<\/h2>\n\n\n\n
Majetek<\/th>
Hodnota<\/th><\/tr><\/thead>
Hustota<\/td>
2,70 g\/cm\u00b3<\/td><\/tr>
Rozsah taven\u00ed<\/td>
632 \u2013 655 \u00b0C<\/td><\/tr>
Tepeln\u00e1 vodivost<\/td>
~201 W\/m\u00b7K (stav O)<\/td><\/tr>
Elektrick\u00e1 vodivost<\/td>
~52 % IACS (kles\u00e1 v tvrd\u0161\u00edch stavech)<\/td><\/tr>
Dv\u011b z t\u011bchto hodnot maj\u00ed v\u00e1hu pro n\u00e1kup. Tepeln\u00e1 a elektrick\u00e1 vodivost p\u0159i ~201 W\/m\u00b7K a ~52 % IACS jsou pro slitinu 5xxx vysok\u00e9 \u2014 d\u016fvodem je n\u00edzk\u00fd obsah ho\u0159\u010d\u00edku \u2014 a ob\u011b klesaj\u00ed s rostouc\u00ed tvrdost\u00ed stavu, tak\u017ee specifikace \u0159\u00edzen\u00e1 vodivost\u00ed by m\u011bla b\u00fdt stanovena v\u016f\u010di stavu O nebo H32, nikoli p\u0159edpokl\u00e1d\u00e1na v cel\u00e9m rozsahu. Teplotn\u00ed rozsah taven\u00ed je d\u016fle\u017eit\u00fd hlavn\u011b pro sva\u0159ov\u00e1n\u00ed a jakoukoli diskusi o provozu za zv\u00fd\u0161en\u00fdch teplot.<\/p>\n\n\n\n
Korozn\u00ed odolnost a anodizace<\/h2>\n\n\n\n
Atmosf\u00e9rick\u00e9 a m\u00edrn\u011b alkalick\u00e9 prost\u0159ed\u00ed.<\/strong> 5005 odol\u00e1v\u00e1 obecn\u00e9 atmosf\u00e9rick\u00e9 korozi srovnateln\u011b s 3003, v\u010detn\u011b pr\u016fmyslov\u00fdch a p\u0159\u00edmo\u0159sk\u00fdch atmosf\u00e9r, s p\u0159idanou v\u00fdhodou \u0159ady 5xxx spo\u010d\u00edvaj\u00edc\u00ed v lep\u0161\u00edm v\u00fdkonu v m\u00edrn\u011b alkalick\u00fdch podm\u00ednk\u00e1ch. Nen\u00ed volbou pro trval\u00e9 pono\u0159en\u00ed v mo\u0159sk\u00e9 vod\u011b \u2014 5083 a 5086 dr\u017e\u00ed tuto pozici \u2014 ale pro mo\u0159skou atmosf\u00e9ru<\/em>, pob\u0159e\u017en\u00ed architekturu a vnit\u0159n\u00ed lodn\u00ed kov\u00e1n\u00ed je pohodln\u011b dosta\u010duj\u00edc\u00ed.<\/p>\n\n\n\n
Ot\u00e1zka 65 \u00b0C.<\/strong> Vy\u0161\u0161\u00ed ho\u0159\u010d\u00edkov\u00e9 jakosti 5xxx maj\u00ed horn\u00ed hranici trval\u00e9ho provozu kolem 65 \u00b0C, nad n\u00ed\u017e precipitace \u03b2-f\u00e1ze pod\u00e9l hranic zrn otev\u00edr\u00e1 cestu ke korozn\u00edmu prask\u00e1n\u00ed za nap\u011bt\u00ed. P\u0159i ~0,8 % Mg je 5005 pod prahovou hodnotou, kde je tento mechanismus praktick\u00fdm probl\u00e9mem. To je skute\u010dn\u00fd diferencia\u010dn\u00ed faktor v\u016f\u010di 5083 a 5056 v tepl\u00e9m provozu a je to jeden z nejm\u00e9n\u011b docen\u011bn\u00fdch d\u016fvod\u016f pro jeho volbu.<\/p>\n\n\n\n
Zv\u00fd\u0161en\u00e1 teplota jej st\u00e1le zm\u011bk\u010duje.<\/strong> Za studena zpevn\u011bn\u00e9 jakosti postupn\u011b ztr\u00e1cej\u00ed pevnost s rostouc\u00ed provozn\u00ed teplotou, s \u00fapln\u00fdm \u017e\u00edh\u00e1n\u00edm kolem 345 \u00b0C. Pokud bude d\u00edl vystaven trval\u00e9mu teplu, navrhujte podle hodnot \u017e\u00edhan\u00e9ho stavu (O) nam\u00edsto hodnot H ve specifikaci \u2014 za studena zpevn\u011bn\u00ed, za kter\u00e9 jste zaplatili, teplo nep\u0159e\u017eije.<\/p>\n\n\n\n
Anodizace \u2014 a h\u00e1\u010dek.<\/strong> P\u0159i anodizaci vytv\u00e1\u0159\u00ed 5005 \u010dir\u00fd, homogenn\u00ed film, kter\u00fd je pr\u016fhledn\u011bj\u0161\u00ed ne\u017e u 3003 a poskytuje vynikaj\u00edc\u00ed barevnou shodu s architektonick\u00fdmi v\u00fdlisky 6063. Tato kombinace je d\u016fvodem, pro\u010d je v\u00fdchoz\u00ed volbou pro anodizovan\u00e9 fas\u00e1dy a dekorativn\u00ed li\u0161ty.<\/p>\n\n\n\n
H\u00e1\u010dek: 5005 se m\u016f\u017ee anodizovat s viditeln\u00fdmi pruhy, n\u011bkdy naz\u00fdvan\u00fdmi \u201c\u010d\u00e1rov\u00e9 k\u00f3dy\u201d. Pokud je povrchov\u00e1 \u00faprava kritick\u00e1 \u2014 fas\u00e1dn\u00ed panel v pln\u00e9m pohledu, velk\u00e1 nep\u0159eru\u0161en\u00e1 plocha \u2014 specifikujte 5005-AQ<\/strong> (jakost pro anodizaci, n\u011bkdy prod\u00e1van\u00e1 jako speci\u00e1ln\u00ed jakost pro anodizaci) v okam\u017eiku objedn\u00e1vky. Stoj\u00ed v\u00edce a je mnohem levn\u011bj\u0161\u00ed ne\u017e objeven\u00ed pruh\u016f po instalaci. Galvanick\u00e1 koroze je dal\u0161\u00ed trval\u00e1 v\u00fdhrada: jako ka\u017ed\u00fd hlin\u00edk, 5005 rychle koroduje, kdy\u017e je elektricky spojen s u\u0161lechtilej\u0161\u00edm kovem ve vlhk\u00e9m prost\u0159ed\u00ed, proto jej izolujte od oceli a slitin m\u011bdi.<\/p>\n\n\n\n
Pr\u00e1ce s 5005<\/h2>\n\n\n\n
<\/figure>\n\n\n\n
Tv\u00e1\u0159en\u00ed.<\/strong> 5005 se snadno tv\u00e1\u0159\u00ed, zejm\u00e9na \u017e\u00edhan\u00fd. Tenk\u00fd plech H32 lze oh\u00fdbat do velmi t\u011bsn\u00fdch polom\u011br\u016f \u2014 p\u0159ibli\u017en\u011b 0 a\u017e \u00bd \u00d7 tlou\u0161\u0165ky \u2014 bez poru\u0161en\u00ed, a H34 obecn\u011b zvl\u00e1d\u00e1 1 a\u017e 2 \u00d7 tlou\u0161\u0165ky. Hlubok\u00e9 ta\u017een\u00ed, rota\u010dn\u00ed tv\u00e1\u0159en\u00ed a v\u00e1lcov\u00e1n\u00ed profil\u016f jsou standardem ve stavu O. Tv\u00e1\u0159ec\u00ed s\u00edly a opot\u0159eben\u00ed n\u00e1stroj\u016f jsou ni\u017e\u0161\u00ed ne\u017e u uhl\u00edkov\u00e9 oceli p\u0159i srovnateln\u00e9 geometrii.<\/p>\n\n\n\n
5005 vs 3003.<\/strong> P\u0159i srovnateln\u00e9m stavu jsou si tyto dv\u011b bl\u00edzk\u00e9 v pevnosti \u2014 v rozmez\u00ed n\u011bkolika procent \u2014 tak\u017ee kdokoli mezi nimi vol\u00ed na z\u00e1klad\u011b pevnosti, optimalizuje \u0161patnou prom\u011bnnou. 5005 v\u00edt\u011bz\u00ed v \u010distot\u011b anodizace, barevn\u00e9 shod\u011b s 6063 a vodivosti (~52 % IACS proti ~40 %). 3003 v\u00edt\u011bz\u00ed v cen\u011b a m\u00edrn\u011b lep\u0161\u00edm hlubok\u00e9m ta\u017een\u00ed. Zvolte 5005, kdy\u017e je povrch viditeln\u00fd; zvolte 3003, kdy\u017e nen\u00ed.<\/p>\n\n\n\n
5005 vs 5052.<\/strong> 5052 je podstatn\u011b pevn\u011bj\u0161\u00ed \u2014 228 MPa proti 159 MPa ve stavu, kter\u00fd v\u011bt\u0161ina lid\u00ed skute\u010dn\u011b kupuje \u2014 a l\u00e9pe odol\u00e1v\u00e1 skute\u010dn\u00e9mu pono\u0159en\u00ed v mo\u0159sk\u00e9 vod\u011b. Za to plat\u00ed m\u00e9n\u011b uniformn\u00edm anodick\u00fdm filmem a vy\u0161\u0161\u00ed cenou. 5052 pro konstrukci a slanou vodu; 5005 pro vzhled.<\/p>\n\n\n\n
5005 vs 6061.<\/strong> R\u016fzn\u00e9 kategorie. 6061-T6 zhruba zdvojn\u00e1sobuje mez kluzu 5005 a obr\u00e1b\u00ed se mnohem l\u00e9pe, ale je vytvrditeln\u00fd tepeln\u00fdm zpracov\u00e1n\u00edm, ztr\u00e1c\u00ed tva\u0159itelnost v T6 a jeho obsah m\u011bdi stoj\u00ed \u010d\u00e1st odolnosti proti korozi a anodick\u00e9 uniformity. 5005 je dekora\u010dn\u00ed plechov\u00e1 slitina; 6061 je konstruk\u010dn\u00ed slitina.<\/p>\n\n\n\n
D\u00edl bude anodizov\u00e1n a vzhled je krit\u00e9riem p\u0159ijatelnosti \u2014 zejm\u00e9na tam, kde mus\u00ed barevn\u011b odpov\u00eddat v\u00fdlisk\u016fm 6063<\/li>\n\n\n\n
Prost\u0159ed\u00ed je atmosf\u00e9rick\u00e9, pob\u0159e\u017en\u00ed nebo m\u00edrn\u011b alkalick\u00e9 sp\u00ed\u0161e ne\u017e trval\u00e9 pono\u0159en\u00ed<\/li>\n\n\n\n
D\u00edl je tvarov\u00e1n, oh\u00fdb\u00e1n nebo ta\u017een a st\u0159edn\u00ed pevnost je dosta\u010duj\u00edc\u00ed<\/li>\n\n\n\n
Provozn\u00ed teplota je okoln\u00ed nebo pouze m\u00edrn\u011b zv\u00fd\u0161en\u00e1 a chcete se vyhnout limitu senzibilizace 65 \u00b0C, kter\u00fd omezuje jakosti s vy\u0161\u0161\u00edm Mg<\/li>\n\n\n\n
Vy\u0161\u0161\u00ed tepeln\u00e1 nebo elektrick\u00e1 vodivost ne\u017e 5052\/5083 je u\u017eite\u010dn\u00e1<\/li>\n<\/ul>\n\n\n\n
Hledejte jinde, kdy\u017e:<\/strong><\/p>\n\n\n\n
\n
Nosnost \u0159\u00edd\u00ed n\u00e1vrh \u2014 p\u0159ejd\u011bte na 5052 pro tvarovan\u00fd plech nebo 6061-T6 pro konstrukci<\/li>\n\n\n\n
D\u00edl je pono\u0159en nebo v oblasti post\u0159iku v mo\u0159sk\u00e9m provozu \u2014 5083 nebo 5086<\/li>\n\n\n\n
Objem obr\u00e1b\u011bn\u00ed je vysok\u00fd a z\u00e1le\u017e\u00ed na \u010dase cyklu \u2014 6061<\/li>\n\n\n\n
Po\u017eadavkem je odolnost proti opot\u0159eben\u00ed ve velk\u00e9m \u2014 anodizace zlep\u0161uje pouze povrch a m\u016f\u017ee b\u00fdt zapot\u0159eb\u00ed \u0159e\u0161en\u00ed 4xxx nebo tvrd\u00e9 povlakov\u00e1n\u00ed<\/li>\n\n\n\n
Specifikace vy\u017eaduje tvrdost nad p\u0159ibli\u017en\u011b 51 HB, co\u017e je m\u00edsto, kde 5005 kon\u010d\u00ed<\/li>\n<\/ul>\n\n\n\n
Streaking possible \u2014 specify 5005-AQ for critical finishes<\/td><\/tr>
Koroze<\/td>
Excellent atmospheric and coastal<\/td>
Not for continuous seawater immersion<\/td><\/tr>
Temperature safety<\/td>
Below the 3% Mg threshold \u2014 no 65 \u00b0C SCC ceiling<\/td>
Cold-worked tempers still soften with sustained heat<\/td><\/tr>
Tvarovatelnost<\/td>
Excellent in O; tight bend radii in H32\/H34<\/td>
Ductility falls fast by H36\/H38<\/td><\/tr>
Sva\u0159itelnost<\/td>
Clean TIG\/MIG, no pre- or post-heat, no sensitization risk<\/td>
HAZ reverts toward annealed strength<\/td><\/tr>
Obr\u00e1b\u011bn\u00ed<\/td>
Better than 1100\/3003<\/td>
Gummy chips; well behind 6061<\/td><\/tr>
Elektrick\u00e1 vodivost<\/td>
~201 W\/m\u00b7K, ~52% IACS \u2014 high for 5xxx<\/td>
Both drop in harder tempers<\/td><\/tr>
S\u00edla<\/td>
Adequate for decorative and light-duty work<\/td>
Ceiling around 200 MPa \/ 51 HB<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
Z\u00e1v\u011br<\/h2>\n\n\n\n
5005 earns its place on a drawing for one reason: it anodizes better than the alternatives at a price that makes decorative architectural work economical \u2014 while matching 3003 on corrosion resistance and dodging the elevated-temperature sensitization limit that bites higher-magnesium 5xxx grades. Its hardness window is narrow by design (28 HB annealed to 51 HB full hard), and the temper choice is where specs live or die: H32\/H34 for formed parts, H38 only when nothing forms, and 5052 or 6061 the moment load-bearing, immersion service, or machining volume becomes the driver. If the surface is visible and exposed, spend the small premium on 5005-AQ.<\/p>\n\n\n\n
At Linsy Aluminum, we supply 5005 across sheet, coil, plate, bar, tube, and wire in the common tempers, with in-house machining, welding, laser cutting, anodizing, and polishing. Send your drawing and spec \u2014 temper and anodizing requirement included \u2014 and we’ll confirm hardness and finish before you commit.<\/p>\n\n\n\n
\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n
How hard is 5005 aluminum?<\/h3>\n\n\n\n
It depends entirely on temper, because 5005 is non-heat-treatable and gains hardness only from cold work. Typical Brinell values run 28 HB in the annealed O condition, 36 HB in H32, 41 HB in H34, 46 HB in H36, and 51 HB in H38. Published figures vary somewhat by source and thickness, so treat these as typical and confirm guaranteed values on the MTC.<\/p>\n\n\n\n
Je hlin\u00edk 5005 tepeln\u011b zpracovateln\u00fd?<\/h3>\n\n\n\n
No. 5005 cannot be precipitation-hardened; all strength comes from strain hardening, expressed in the H-tempers. It can be annealed \u2014 around 345 \u00b0C followed by slow cooling \u2014 but that softens it rather than strengthening it. If you need heat-treatable strength, 6061 is the usual move.<\/p>\n\n\n\n
Which 5005 temper should I specify?<\/h3>\n\n\n\n
Use O when the part is deeply drawn or severely formed. H32 is the general-purpose choice and the safest default for architectural sheet, with H34 adding strength where some formability can be given up. H36 and H38 deliver maximum strength but elongation drops to around 6%, which rules out most forming. H32 and H34 are preferred for anodized architectural work because the stabilised H3x condition holds its properties.<\/p>\n\n\n\n
Does anodizing make 5005 harder?<\/h3>\n\n\n\n
It hardens the surface, not the metal. The anodic oxide layer is considerably harder than the aluminium substrate, so scratch and wear resistance improve substantially \u2014 but the bulk hardness underneath is unchanged, and a 5005-H34 part still has 41 HB below its coating. Anodizing is the right answer for surface durability and the wrong answer for load-bearing capacity.<\/p>\n\n\n\n
Is 5005 suitable for marine environments?<\/h3>\n\n\n\n
For marine atmosphere, yes \u2014 it performs well in coastal and salt-spray exposure and is widely used for interior boat fittings and coastal architectural parts. For continuous seawater immersion or heavily loaded marine structure, higher-magnesium grades such as 5083 or 5086 are the correct specification. 5005 also has an advantage here: at ~0.8% Mg it sits below the threshold where the 65 \u00b0C sensitization and stress-corrosion-cracking limit applies to grades like 5083 and 5056.<\/p>","protected":false},"excerpt":{"rendered":"
What Is 5005 Aluminum? 5005 is the lean-magnesium end of the 5xxx family, carrying roughly 0.8% magnesium \u2014 well below 5052 (~2.5%) or 5083 (~4.5%). That single number explains almost everything about it. With less magnesium, 5005 trades the high strength of its 5xxx cousins for two things buyers actually specify it for: an excellent […]<\/p>\n","protected":false},"author":1,"featured_media":10590,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"5005 Aluminum Alloy Guide: Properties, Hardness, Composition & Comparisons","_seopress_titles_desc":"How hard is 5005 aluminum? Compare Brinell hardness, tensile and yield strength across O, H32, H34, H36 and H38 tempers, plus anodizing and selection guidance.","_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-8646","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\/8646","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=8646"}],"version-history":[{"count":2,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8646\/revisions"}],"predecessor-version":[{"id":10594,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8646\/revisions\/10594"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10590"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=8646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=8646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=8646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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