{"id":7500,"date":"2024-12-31T03:17:09","date_gmt":"2024-12-31T03:17:09","guid":{"rendered":"https:\/\/premiumalu.com\/mastering-3003-aluminium-alloy-a-comprehensive-guide\/"},"modified":"2026-10-07T14:44:21","modified_gmt":"2026-10-07T14:44:21","slug":"zvladnuti-slitiny-hliniku-3003-komplexni-pruvodce","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/mastering-3003-aluminium-alloy-a-comprehensive-guide\/","title":{"rendered":"Komplexn\u00ed pr\u016fvodce slitinou hlin\u00edku 3003"},"content":{"rendered":"<p class=\"wp-block-paragraph\">3003 je slitina, po kter\u00e9 s\u00e1hnete, kdy\u017e je tvar d\u00edlu d\u016fle\u017eit\u011bj\u0161\u00ed ne\u017e jeho pevnost. Lze ji hloubkov\u011b t\u00e1hnout a rota\u010dn\u011b tv\u00e1\u0159et v\u00edce ne\u017e t\u00e9m\u011b\u0159 jakoukoli jinou tv\u00e1\u0159enou hlin\u00edkovou slitinu, odol\u00e1v\u00e1 venkovn\u00edmu prost\u0159ed\u00ed i kontaktu s potravinami bez povlaku a sva\u0159uje se b\u011b\u017en\u00fdm d\u00edlensk\u00fdm vybaven\u00edm. Co v\u0161ak nedok\u00e1\u017ee, je poskytnout konstruk\u010dn\u00ed pevnost nebo se obr\u00e1b\u011bt jako automatov\u00e1 t\u0159\u00edda.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tento kompromis je cel\u00fdm p\u0159\u00edb\u011bhem slitiny a v\u011bt\u0161ina chyb ve specifikac\u00edch pramen\u00ed z toho, \u017ee vid\u00ed jen jeho polovinu. Kupuj\u00edc\u00ed zvol\u00ed 3003 pro n\u00e1dr\u017e, potrub\u00ed nebo j\u00e1dro chladi\u010de a pot\u00e9 po stejn\u00e9m materi\u00e1lu po\u017eaduje, aby nesl zat\u00ed\u017een\u00ed nebo dodr\u017eel toleranci v obr\u00e1b\u011bc\u00edm centru, co\u017e nedok\u00e1\u017ee.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-aluminium-cover.webp\" alt=\"3003-aluminium-cover\" class=\"wp-image-10653\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-aluminium-cover.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-aluminium-cover-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-aluminium-cover-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-aluminium-cover-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-aluminium-cover-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Co je slitina hlin\u00edku 3003<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-3003\/\">3003 hlin\u00edk<\/a> je tepeln\u011b neztvrditeln\u00e1 slitina Al-Mn ze s\u00e9rie 3xxx, registrovan\u00e1 jako UNS A93003 a v Evrop\u011b zn\u00e1m\u00e1 jako EN AW-3003 neboli AlMn1Cu. Mangan v mno\u017estv\u00ed 1,0\u20131,5% je jedin\u00fdm z\u00e1m\u011brn\u00fdm p\u0159\u00eddavkem a zvy\u0161uje pevnost p\u0159ibli\u017en\u011b o 20% oproti komer\u010dn\u011b \u010dist\u00e9mu <a href=\"https:\/\/premiumalu.com\/cs\/kategorie-produktu\/slitiny-hliniku-rady-1000\/\">1100<\/a> hlin\u00edku, ani\u017e by ob\u011btoval tva\u0159itelnost nebo odolnost proti korozi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Neexistuje \u017e\u00e1dn\u00fd krok st\u00e1rnut\u00ed, tak\u017ee v\u00e1lcovna vytv\u00e1\u0159\u00ed ve\u0161kerou pevnost studenou redukc\u00ed. Tato jedin\u00e1 skute\u010dnost vysv\u011btluje jak syst\u00e9m stav\u016f, tak hlavn\u00ed provozn\u00ed omezen\u00ed: jak\u00fdkoli pozd\u011bj\u0161\u00ed krok \u017e\u00edh\u00e1n\u00ed nebo sva\u0159ov\u00e1n\u00ed vrac\u00ed pevnost lok\u00e1ln\u011b zp\u011bt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Slitina byla standardizov\u00e1na ve 30. letech 20. stolet\u00ed a dnes pat\u0159\u00ed mezi nejobjemov\u011bj\u0161\u00ed v\u00e1lcovan\u00e9 hlin\u00edkov\u00e9 t\u0159\u00eddy na sv\u011bt\u011b. Nab\u00eddka je \u0161irok\u00e1, ceny stabiln\u00ed a je dod\u00e1v\u00e1na ve v\u00edce stavech ne\u017e kter\u00e1koli jin\u00e1 t\u0159\u00edda 3xxx.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Chemick\u00e9 slo\u017een\u00ed a normy<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00ed\u017ee uveden\u00e9 limity jsou registrovan\u00fdm slo\u017een\u00edm pro 3003 a jsou sd\u00edleny normami ASTM B209 a EN 573-3. V\u0161echny \u00fadaje jsou v hmotnostn\u00edch procentech.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Prvek<\/td><td>Limit (hm. %)<\/td><\/tr><tr><td>K\u0159em\u00edk (Si)<\/td><td>\u2264 0,60<\/td><\/tr><tr><td>\u017delezo (Fe)<\/td><td>\u2264 0,70<\/td><\/tr><tr><td>M\u011b\u010f (Cu)<\/td><td>0.05 - 0.20<\/td><\/tr><tr><td>Mangan (Mn)<\/td><td>1.00 \u2013 1.50<\/td><\/tr><tr><td>Zinek (Zn)<\/td><td>\u2264 0,10<\/td><\/tr><tr><td>Titan (Ti)<\/td><td>\u2264 0,05<\/td><\/tr><tr><td>Ostatn\u00ed, ka\u017ed\u00fd<\/td><td>\u2264 0,05<\/td><\/tr><tr><td>Ostatn\u00ed, celkem<\/td><td>\u2264 0.15<\/td><\/tr><tr><td>Hlin\u00edk (Al)<\/td><td>Zbytek<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tato tabulka je standardn\u00ed a \u00fapln\u00e1, tak\u017ee v n\u00ed nen\u00ed nic k vyjedn\u00e1v\u00e1n\u00ed. Dva body v\u0161ak kupuj\u00edc\u00ed p\u0159esto zasko\u010d\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ho\u0159\u010d\u00edk a chrom nejsou pro 3003 v \u017e\u00e1dn\u00e9 z norem specifikov\u00e1ny samostatn\u011b, tak\u017ee jak\u00fdkoli zbytek spad\u00e1 pod limit 0,05% \u201costatn\u00ed, ka\u017ed\u00fd\u201d. N\u011bkter\u00e9 certifik\u00e1ty v\u00e1lcovny uv\u00e1d\u011bj\u00ed Mg \u2264 0,05 a Cr \u2264 0,05, aby tento implicitn\u00ed limit u\u010dinily explicitn\u00edm, a proto mohou dva datov\u00e9 listy vypadat odli\u0161n\u011b, p\u0159esto\u017ee popisuj\u00ed p\u0159esn\u011b stejnou slitinu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stejn\u00fd materi\u00e1l nese v r\u016fzn\u00fdch syst\u00e9mech r\u016fzn\u00e1 ozna\u010den\u00ed a norma v\u00fdrobku se m\u011bn\u00ed podle formy, kterou kupujete.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Syst\u00e9m<\/td><td>Ozna\u010den\u00ed<\/td><td>Platn\u00e9 normy v\u00fdrobk\u016f<\/td><\/tr><tr><td>AA \/ UNS<\/td><td>3003 \/ A93003<\/td><td>ASTM B209 (plech, tlust\u00fd plech), B210 (ta\u017een\u00e1 trubka), B211 (ty\u010d, prut, dr\u00e1t), B221 (lisovan\u00e9 profily)<\/td><\/tr><tr><td>CS<\/td><td>EN AW-3003 \/ AlMn1Cu (DIN 3.0517)<\/td><td>EN 573-3 (chemie), EN 485 (v\u00e1lcovan\u00e9), EN 754 (ta\u017een\u00e9), EN 755 (lisovan\u00e9)<\/td><\/tr><tr><td>ISO<\/td><td>AlMn1Cu<\/td><td>ISO 6361<\/td><\/tr><tr><td>JIS<\/td><td>A3003<\/td><td>JIS H4000 \/ H4040 \/ H4080<\/td><\/tr><tr><td>GB<\/td><td>3003<\/td><td>GB\/T 3190, GB\/T 3880<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud v\u00fdkres uv\u00e1d\u00ed pouze \u201c3003\u201d a nic jin\u00e9ho, p\u0159ed dohodnut\u00edm ceny si potvr\u010fte formu v\u00fdrobku. V\u00e1lcovan\u00fd a lisovan\u00fd materi\u00e1l podl\u00e9h\u00e1 r\u016fzn\u00fdm norm\u00e1m, r\u016fzn\u00fdm definic\u00edm stav\u016f a r\u016fzn\u00fdm mechanick\u00fdm minim\u016fm a rozd\u00edl je dostate\u010dn\u011b velk\u00fd na to, aby zm\u011bnil konstrukci.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Mechanick\u00e9 vlastnosti podle zp\u016fsobu temperov\u00e1n\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Stav ur\u010duje tyto hodnoty mnohem v\u00edce ne\u017e chemie. Studen\u00e1 redukce ze \u017e\u00edhan\u00e9ho stavu p\u0159ibli\u017en\u011b zdvojn\u00e1sobuje pevnost v tahu a odstra\u0148uje v\u011bt\u0161inu ta\u017enosti, a ka\u017ed\u00fd krok toho je z\u00e1m\u011brn\u00fd.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Majetek<\/td><td>3003-O (\u017e\u00edhan\u00fd)<\/td><td>3003-H14 (polotvrd\u00fd)<\/td><td>3003-H18 (pln\u011b tvrd\u00fd)<\/td><\/tr><tr><td>Pevnost v tahu, Rm (MPa)<\/td><td>95 \u2013 130<\/td><td>140 \u2013 180<\/td><td>\u2265 185<\/td><\/tr><tr><td>Mez kluzu, Rp0,2 (MPa)<\/td><td>\u2265 35<\/td><td>\u2265 115<\/td><td>\u2265 165<\/td><\/tr><tr><td>Prodlou\u017een\u00ed (%)<\/td><td>\u2265 25<\/td><td>\u2265 5<\/td><td>\u2265 3<\/td><\/tr><tr><td>Tvrdost (HB)<\/td><td>\u2248 28<\/td><td>\u2248 40<\/td><td>\u2248 55<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Pro ploch\u00e9 v\u00e1lcovan\u00e9 v\u00fdrobky je H14 pracovn\u00ed v\u00fdchoz\u00ed volbou a O je stav, kter\u00fd specifikujete z\u00e1m\u011brn\u011b. Zvolte O, kdy\u017e bude d\u00edl po dod\u00e1n\u00ed hloubkov\u011b ta\u017een, rota\u010dn\u011b tv\u00e1\u0159en nebo t\u011bsn\u011b oh\u00fdb\u00e1n, H14, kdy\u017e mus\u00ed udr\u017eet tvar p\u0159i lehk\u00e9m tv\u00e1\u0159en\u00ed, a H18, kdy\u017e nebude tv\u00e1\u0159en v\u016fbec. Podrobnosti o polotvrd\u00e9 cest\u011b, jej\u00edch polom\u011brech oh\u00fdb\u00e1n\u00ed a jej\u00edch limitech tv\u00e1\u0159en\u00ed najdete v na\u0161em <a href=\"https:\/\/premiumalu.com\/cs\/najdete-si-dokonalou-hlinikovou-slitinu-3003-h14-jeste-dnes\/\">pr\u016fvodci 3003-H14<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Minim\u00e1ln\u00ed hodnoty z\u00e1vis\u00ed na tlou\u0161\u0165ce, tak\u017ee \u00fadaj uveden\u00fd bez tlou\u0161\u0165ky nen\u00ed pou\u017eiteln\u00fd. ASTM B209 sni\u017euje minim\u00e1ln\u00ed ta\u017enost s t\u00edm, jak se plech zten\u010duje, a EN 485-2 uv\u00e1d\u00ed m\u00edrn\u011b vy\u0161\u0161\u00ed hodnoty H14 ne\u017e ASTM: rozsah pevnosti v tahu 145\u2013185 MPa s minimem meze kluzu 125 MPa. Uve\u010fte na objedn\u00e1vce platnou normu a ode\u010dt\u011bte certifikovan\u00e9 hodnoty z inspek\u010dn\u00edho dokumentu dodan\u00e9ho s tavbou.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fyzik\u00e1ln\u00ed vlastnosti<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Toto jsou hodnoty, kter\u00e9 stoj\u00ed za v\u011bt\u0161inou tepeln\u00fdch a hmotnostn\u00edch v\u00fdpo\u010dt\u016f. Hustota a modul jsou prakticky pevn\u00e9, zat\u00edmco hodnoty vodivosti se m\u00edrn\u011b m\u011bn\u00ed se stavem.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Majetek<\/td><td>Hodnota<\/td><\/tr><tr><td>Hustota<\/td><td>2,73 g\/cm\u00b3<\/td><\/tr><tr><td>Rozsah taven\u00ed<\/td><td>\u2248 640 \u2013 655 \u00b0C<\/td><\/tr><tr><td>Tepeln\u00e1 vodivost<\/td><td>\u2248 160 \u2013 190 W\/(m\u00b7K), nejvy\u0161\u0161\u00ed v \u017e\u00edhan\u00e9m stavu<\/td><\/tr><tr><td>Elektrick\u00e1 vodivost<\/td><td>\u2248 40 \u2013 44 % IACS<\/td><\/tr><tr><td>Tepeln\u00e1 rozta\u017enost, 20\u2013100 \u00b0C<\/td><td>23,1 \u00b5m\/(m\u00b7K)<\/td><\/tr><tr><td>Modul pru\u017enosti<\/td><td>\u2248 69,5 GPa<\/td><\/tr><tr><td>Rozsah \u017e\u00edh\u00e1n\u00ed<\/td><td>350 \u2013 400 \u00b0C<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Hustota je \u00fadaj, kter\u00fd obvykle rozhoduje o projektu. P\u0159i 2,73 g\/cm\u00b3 m\u00e1 3003 p\u0159ibli\u017en\u011b jednu t\u0159etinu hmotnosti oceli, a proto nahrazuje pozinkovan\u00fd plech v n\u00e1dr\u017e\u00edch, potrub\u00edch a opl\u00e1\u0161t\u011bn\u00edch. Tepeln\u00e1 vodivost je dobr\u00e1, ale v\u00fdrazn\u011b ni\u017e\u0161\u00ed ne\u017e u m\u011bdi, tak\u017ee slitina sout\u011b\u017e\u00ed sp\u00ed\u0161e na z\u00e1klad\u011b hmotnosti a n\u00e1klad\u016f ne\u017e na z\u00e1klad\u011b samotn\u00e9ho p\u0159enosu tepla.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Volba stavu<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-temper-selection.webp\" alt=\"3003-temper-selection\" class=\"wp-image-10654\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-temper-selection.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-temper-selection-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-temper-selection-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-temper-selection-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-temper-selection-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Stav, kter\u00fd uvedete, ur\u010duje rovnov\u00e1hu mezi pevnost\u00ed a t\u00edm, kolik tv\u00e1\u0159en\u00ed d\u00edl je\u0161t\u011b snese. V\u011bt\u0161ina objemu spo\u010d\u00edv\u00e1 v O, H14 a H22; ostatn\u00ed existuj\u00ed pro jeden konkr\u00e9tn\u00ed proces nebo jedno konkr\u00e9tn\u00ed nam\u00e1h\u00e1n\u00ed.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Temperament<\/td><td>Co to je<\/td><td>Typick\u00e9 pou\u017eit\u00ed<\/td><\/tr><tr><td>O<\/td><td>\u017d\u00edh\u00e1no, pln\u011b m\u011bkk\u00e9<\/td><td>Hloubkov\u00e9 ta\u017een\u00ed, rota\u010dn\u00ed tv\u00e1\u0159en\u00ed, slo\u017eit\u00e9 ra\u017een\u00ed<\/td><\/tr><tr><td>H12<\/td><td>Quarter hard<\/td><td>General forming where a little strength helps<\/td><\/tr><tr><td>H14<\/td><td>Polotvrd\u00fd<\/td><td>Roofing, siding, tanks, cookware, general fabrication<\/td><\/tr><tr><td>H16<\/td><td>Three-quarter hard<\/td><td>Konstruk\u010dn\u00ed panely, orienta\u010dn\u00ed tabule<\/td><\/tr><tr><td>H18<\/td><td>Pln\u011b tvrd\u00fd<\/td><td>Flat panels with no post-supply forming<\/td><\/tr><tr><td>H22<\/td><td>Strain-hardened, then partly annealed<\/td><td>Parts formed after delivery, where H14 would crack<\/td><\/tr><tr><td>H112<\/td><td>As-fabricated, no strain-hardening control<\/td><td>Thick plate and heavy-gauge structural work<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">H22 is the temper buyers overlook most often. It delivers strength close to H14 with noticeably better ductility, which matters when the forming happens at your plant rather than at the mill and the part has to bend without cracking.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where 3003 Is Chosen \u2014 and Where It Is Not<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">3003 wins when four requirements arrive together: easy forming, outdoor-grade corrosion resistance, straightforward welding, and a low cost per kilogram. Remove any one of them and another alloy usually takes the job.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Specify 3003 when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The part is deep drawn, spun or severely bent, and finished thickness is set by the die rather than by stress.<\/li>\n\n\n\n<li>The assembly is brazed, or it is a radiator, condenser, evaporator or cooling plate.<\/li>\n\n\n\n<li>Service is outdoor, marine-atmosphere, food-contact or mildly chemical, and you would rather not add a coating.<\/li>\n\n\n\n<li>Volume is high and a stable, widely available alloy matters more than the last few percent of strength.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Move to another grade when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Design stress exceeds the H18 ceiling, which <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-5052\/\">5052<\/a> in H32 or a heat-treatable alloy handles easily.<\/li>\n\n\n\n<li>The part is machined rather than formed.<\/li>\n\n\n\n<li>A cold-worked temper has to keep full strength across a weld.<\/li>\n\n\n\n<li>Decorative anodising is required from continuously cast stock.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Machinability is the limitation that surprises buyers most, because 3003 looks like a general-purpose metal on paper. The grade is too soft and ductile to form a clean chip: it smears, builds up on the cutting edge and leaves a poor finish. For turned, milled or drilled parts, 6061-T6, 6262 or 2011 are the correct choices, and the extra material cost is normally recovered in cycle time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Applications of 3003 Aluminum<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Heat Exchangers, Radiators and Brazing Sheet<\/h3>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-brazing-sheet.webp\" alt=\"3003-brazing-sheet\" class=\"wp-image-10655\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-brazing-sheet.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-brazing-sheet-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-brazing-sheet-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-brazing-sheet-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-brazing-sheet-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The single largest use of 3003 is as the core layer of clad brazing sheet. A typical build is 4343\/3003\/4343, or 4045 on one or both faces, where the 4xxx skin melts in the furnace while the 3003 core stays solid.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That structure is what makes a brazed heat exchanger possible without added filler. The skin flows into the joint by capillary action, and the core carries the strength and holds the fluid channels to dimension.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Parts built this way include car radiators, condensers, evaporators, charge-air coolers, heater cores, air-conditioning coil fins, and the liquid-cooling plates used in battery packs and energy storage. Plain 3003 sheet and fin stock cover the lower-cost end of the same market, where brazing duty is light but stamping and forming still decide the temper.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Building, Roofing and HVAC<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">3003 is a default cladding material for roofing, siding, gutters, flashing and wall panels. It weathers without a protective coating, and it rolls and folds into the profiles those systems need.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The same properties put it into ductwork, insulated pipe jacketing, HVAC housings and drainage goods. Where a project wants colour, <a href=\"https:\/\/premiumalu.com\/cs\/produkt\/hlinikovy-plech-3003\/\">hlin\u00edkov\u00fd plech 3003<\/a> takes paint or a pre-painted coil finish.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Transport and Automotive<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Transport uses the alloy where weight and fabrication cost matter more than strength: fuel tanks, oil pans, trailer and truck body panels, battery trays and non-structural brackets.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The same sector consumes it by the tonne in vehicle heat exchangers, which is the largest automotive application by volume. Forecast and fabrication demand here usually decides whether a mill order runs in O or H14.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Food, Chemical and General Fabrication<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Food-contact and mildly corrosive duty is a natural fit: cookware, food-processing trays, storage tanks, light chemical equipment and fresh-water piping components.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Beyond that, the grade covers general sheet-metal work \u2014 enclosures, signage, nameplates, furniture trim, lighting reflectors and formed electrical housings \u2014 wherever moderate strength is enough and a clean surface is wanted.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How 3003 Compares<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-vs-6061.webp\" alt=\"3003-vs-6061\" class=\"wp-image-10656\" srcset=\"https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-vs-6061.webp 800w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-vs-6061-300x225.webp 300w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-vs-6061-768x576.webp 768w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-vs-6061-16x12.webp 16w, https:\/\/premiumalu.com\/wp-content\/uploads\/2026\/10\/3003-vs-6061-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Against the alloys it is most often weighed against, 3003 sits in the middle of the non-heat-treatable group and well below the heat-treatable ones.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">AlloyStrengthened byStrength at a common temperBest reason to pick it1100Cold workH14 \u2248 110 \u2013 145 MPaMaximum conductivity and corrosion purity3003Cold workH14 \u2248 140 \u2013 180 MPaThe general-purpose balance3004Cold workH34 \u2248 215 \u2013 240 MPaHigher-strength sheet and can stock5052Cold workH32 \u2248 210 \u2013 260 MPaMarine and pressure service<a href=\"https:\/\/premiumalu.com\/cs\/produkt\/slitina-hliniku-6061\/\">6061<\/a>Heat treatmentT6 \u2265 290 MPaStructural and machined parts<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The decision against 6061 is about process rather than properties. If the part is formed from flat sheet in volume, 3003 is cheaper and more ductile; if it is machined, welded into a loaded frame or asked to carry stress, 6061 wins and 3003 cannot follow.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The full side-by-side, including corrosion and welding behaviour, sits in our <a href=\"https:\/\/premiumalu.com\/cs\/3003-vs-6061-v-hloubkovem-srovnani\/\">srovn\u00e1n\u00ed 3003 vs 6061<\/a>. Where the question is which rolled alloy suits a container or a panel, the <a href=\"https:\/\/premiumalu.com\/cs\/vyber-dokonaleho-hlinikoveho-plechu-3104-vs-3003-vs-3004-slitiny\/\">3104 vs 3003 vs 3004 sheet comparison<\/a> works through the same decision.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">3003 is a general-purpose Al-Mn sheet alloy, and its trade-off is a low strength ceiling: H18 reaches only about 185 MPa tensile, well under 5052-H32 or 6061-T6, and the grade machines poorly. It earns its place through formability, corrosion resistance, weldability and brazing behaviour, not through load capacity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We supply 3003 as sheet, plate, coil, strip, tube, bar and wire in O, H12, H14, H18, H22 and H112, in standard sizes or made to your drawing, at a low MOQ with a 10\u201360 day lead time. Every order ships with a mill test certificate, and SGS reports are available on request.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/premiumalu.com\/cs\/kontakt\/\" data-type=\"page\" data-id=\"350\">Po\u0161lete n\u00e1m sv\u016fj 3003 temper<\/a>, tlou\u0161\u0165ku a v\u00fdkres, a potvrd\u00edme v\u00e1m skladov\u00e9 z\u00e1soby, cenu a dodac\u00ed lh\u016ftu.<\/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\">Jak\u00e9 nejvy\u0161\u0161\u00ed pevnosti mohu dos\u00e1hnout p\u0159i n\u00e1vrhu s 3003?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159ibli\u017en\u011b 185 MPa v tahu u H18 podle ASTM B209, co\u017e je nejtvrd\u0161\u00ed temper, do kter\u00e9ho se tento stupe\u0148 v\u00e1lcuje. H14 a H22 jsou n\u00ed\u017ee a vym\u011b\u0148uj\u00ed pevnost za tva\u0159itelnost. Pokud n\u00e1vrhov\u00e9 nap\u011bt\u00ed p\u0159ekro\u010d\u00ed strop H18, p\u0159ejd\u011bte na 5052-H32 nebo na vytvrzovatelnou slitinu.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Jak\u00e9 je minim\u00e1ln\u00ed mno\u017estv\u00ed objedn\u00e1vky a dodac\u00ed lh\u016fta pro 3003?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Standardn\u00ed tempery a rozm\u011bry se dod\u00e1vaj\u00ed ze skladu; cokoli mimo tento rozsah se vyr\u00e1b\u00ed jako zak\u00e1zka s n\u00edzk\u00fdm MOQ, obvykle 10\u201360 dn\u00ed, v z\u00e1vislosti na slitin\u011b, rozm\u011brech a zpracov\u00e1n\u00ed. Dod\u00e1v\u00e1me plechy, desky, svitky, p\u00e1sy, trubky, ty\u010de a dr\u00e1t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Co mus\u00edm poslat pro cenovou nab\u00eddku na 3003?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u010cty\u0159i \u00fadaje vy\u0159e\u0161\u00ed v\u011bt\u0161inu popt\u00e1vek:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Temper a tlou\u0161\u0165ka, proto\u017ee mechanick\u00e1 minima z\u00e1vis\u00ed na obou.<\/li>\n\n\n\n<li>Forma v\u00fdrobku \u2014 plech, deska, svitek, p\u00e1s, trubka, ty\u010d nebo dr\u00e1t.<\/li>\n\n\n\n<li>Rozhoduj\u00edc\u00ed norma, ASTM B209 nebo jej\u00ed ekvivalent EN.<\/li>\n\n\n\n<li>Zda posta\u010duje hutn\u00ed osv\u011bd\u010den\u00ed, nebo je vy\u017eadov\u00e1no tak\u00e9 testov\u00e1n\u00ed t\u0159et\u00ed stranou SGS.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Jak\u00e9 dokumenty se dod\u00e1vaj\u00ed s objedn\u00e1vkou 3003?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hutn\u00ed osv\u011bd\u010den\u00ed uv\u00e1d\u011bj\u00edc\u00ed skute\u010dn\u00e9 chemick\u00e9 slo\u017een\u00ed a mechanick\u00e9 v\u00fdsledky pro danou \u0161ar\u017ei. Zpr\u00e1vy SGS jsou k dispozici na vy\u017e\u00e1d\u00e1n\u00ed za dodate\u010dn\u00e9 n\u00e1klady na testov\u00e1n\u00ed. EN 10204 3.2 p\u0159id\u00e1v\u00e1 nez\u00e1visl\u00fd spolupodpis, pokud jej projekt vy\u017eaduje.<\/p>","protected":false},"excerpt":{"rendered":"<p>3003 is the alloy to reach for when the shape of the part matters more than its strength. It deep-draws and spins further than almost any other wrought aluminium, survives outdoor and food-contact service without a coating, and welds with ordinary shop equipment. What it will not do is deliver structural strength or machine like [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":10653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"3003 Aluminium Alloy: Properties, Applications and Tempers Explained","_seopress_titles_desc":"Learn 3003 aluminium alloy properties, tempers (O vs H14), weldability, and uses in automotive, construction, and packaging. Compare 3003 with 6061 and other series.","_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":[173],"tags":[],"class_list":["post-7500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1000_3000-series-aluminum"],"_links":{"self":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/7500","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\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/comments?post=7500"}],"version-history":[{"count":2,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/7500\/revisions"}],"predecessor-version":[{"id":10658,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/7500\/revisions\/10658"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10653"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=7500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=7500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=7500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}