{"id":8661,"date":"2025-05-05T05:34:49","date_gmt":"2025-05-05T05:34:49","guid":{"rendered":"https:\/\/premiumalu.com\/5251-aluminum-sheet-essential-guide-for-buyers\/"},"modified":"2026-11-03T07:30:33","modified_gmt":"2026-11-03T07:30:33","slug":"5251-hlinikovy-plech-zakladni-pruvodce-pro-kupujici","status":"publish","type":"post","link":"https:\/\/premiumalu.com\/cs\/5251-aluminum-sheet-essential-guide-for-buyers\/","title":{"rendered":"Hlin\u00edk 5251: Slo\u017een\u00ed, stavy a ot\u00e1zka 5052"},"content":{"rendered":"

5251 hlin\u00edk je slitina plechu a desky s 2 % ho\u0159\u010d\u00edku a 0,3 % manganu, registrovan\u00e1 Asociac\u00ed hlin\u00edku a specifikovan\u00e1 v EN 485 a AS\/NZS 1734 \u2014 ale nem\u00e1 \u017e\u00e1dn\u00fd \u0159\u00e1dek v ASTM B209. Uve\u010fte v objedn\u00e1vce p\u0159\u00edslu\u0161nou normu EN nebo AS\/NZS, aby dodavatel v\u011bd\u011bl, kter\u00e9 pevnostn\u00ed limity m\u00e1 splnit.<\/p>\n\n\n\n

5251 je n\u011bkdy nab\u00edzen m\u00edsto 5052, ale nen\u00ed automaticky zam\u011bniteln\u00fd. Limity slo\u017een\u00ed se li\u0161\u00ed a po\u017eadavky na mez kluzu z\u00e1vis\u00ed na norm\u011b, stavu zpracov\u00e1n\u00ed a tlou\u0161\u0165ce.<\/p>\n\n\n\n

Co je 5251 a kde jej norma ukotvuje<\/h2>\n\n\n\n
\"kryt-5251-hlin\u00edk\"<\/figure>\n\n\n\n

5251 je tepeln\u011b nezpracovateln\u00e1 slitina hlin\u00edk-ho\u0159\u010d\u00edk, ozna\u010dovan\u00e1 EN AW-5251 a AlMg2 ve star\u0161\u00ed n\u011bmeck\u00e9 a ISO notaci. V obsahu ho\u0159\u010d\u00edku se nach\u00e1z\u00ed nad 5005 a pod 5052 a pevnost z\u00edsk\u00e1v\u00e1 ho\u0159\u010d\u00edkem v tuh\u00e9m roztoku a tv\u00e1\u0159en\u00edm za studena. Slo\u017een\u00ed je stanoveno EN 573-3<\/strong>, mechanick\u00e9 vlastnosti pro plech, p\u00e1s a desku normou EN 485-2<\/strong>, \uff0c\u5176\u4e2d AS\/NZS 1734<\/strong> pou\u017e\u00edvan\u00e1 v Austr\u00e1lii a na Nov\u00e9m Z\u00e9landu. BS 1470<\/strong> ji historicky obsahovala a je sta\u017eena; ASTM B209<\/strong> ji neuv\u00e1d\u00ed.<\/p>\n\n\n\n

Severoamerick\u00fd v\u00fdkres odkazuj\u00edc\u00ed na ASTM B209 5052 nelze splnit s 5251 a certifik\u00e1t s hlavi\u010dkou \u201c5251 dle ASTM B209\u201d popisuje specifikaci, kter\u00e1 neexistuje.<\/p>\n\n\n\n

Chemick\u00e9 slo\u017een\u00ed: Jak se 5251 li\u0161\u00ed od 5052<\/h2>\n\n\n\n

Limity jsou hodnoty dle EN 573-3, s 5052 uvedenou vedle, proto\u017ee na toto srovn\u00e1n\u00ed se kupuj\u00edc\u00ed ptaj\u00ed.<\/p>\n\n\n\n

Prvek<\/th>5251 (EN 573-3)<\/th>5052 (ASTM B209)<\/th>Co dan\u00e9 \u010d\u00edslo ovliv\u0148uje<\/th><\/tr><\/thead>
Mg<\/td>1.70\u20132.40<\/td>2.2\u20132.8<\/td>Stanovuje pevnost a odolnost ve slan\u00e9 vod\u011b<\/td><\/tr>
Mn<\/td>0.10\u20130.50<\/td>0,10 max<\/td>Zjem\u0148uje zrno, zpomaluje m\u011bknut\u00ed v z\u00f3n\u011b svaru<\/td><\/tr>
Cr<\/td>0,15 max<\/td>0.15\u20130.35<\/strong><\/td>\u0158\u00edd\u00ed r\u016fst zrna a n\u00e1chylnost k nap\u011b\u0165ov\u00e9 korozi<\/td><\/tr>
Fe<\/td>max 0,50<\/td>max 0,40<\/td>Ne\u010distota; ni\u017e\u0161\u00ed je lep\u0161\u00ed pro ta\u017enost<\/td><\/tr>
Si<\/td>max 0,40<\/td>0,25 max.<\/td>Ne\u010distota<\/td><\/tr>
Cu<\/td>0,15 max<\/td>0,10 max<\/td>Ne\u010distota; udr\u017eov\u00e1na n\u00edzko kv\u016fli korozi<\/td><\/tr>
Zn<\/td>0,15 max<\/td>0,10 max<\/td>Ne\u010distota<\/td><\/tr>
Ti<\/td>0,15 max<\/td>Zkontrolujte limity ostatn\u00edch prvk\u016f<\/td>M\u016f\u017ee p\u016fsobit jako modifik\u00e1tor zrna<\/td><\/tr>
Ostatn\u00ed<\/td>0,05 ka\u017ed\u00fd \/ 0,15 celkem<\/td>0,05 ka\u017ed\u00fd \/ 0,15 celkem<\/td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Limity se li\u0161\u00ed, ale nejsou zcela odd\u011blen\u00e9: chrom m\u016f\u017ee spl\u0148ovat oba p\u0159i 0,15 % a mangan p\u0159i 0,10 %. Tento \u00fazk\u00fd p\u0159ekryv ne\u010din\u00ed slitiny zam\u011bniteln\u00fdmi. Jak\u00e1koli dvoj\u00ed certifikace mus\u00ed spl\u0148ovat v\u0161echny po\u017eadavky na slo\u017een\u00ed, mechanick\u00e9 vlastnosti a v\u00fdrobkovou normu.<\/p>\n\n\n\n

Mechanick\u00e9 vlastnosti: 25% mezera v mezi kluzu<\/h2>\n\n\n\n

Limity jsou hodnoty dle EN 485-2 pro plech v p\u00e1smu 1,5\u20133,0 mm, kde se v\u011bt\u0161ina tohoto stupn\u011b nakupuje. Jednotliv\u00e9 hodnoty jsou minima; rozsahy jsou pevnostn\u00ed okna.<\/p>\n\n\n\n

Temperament<\/th>Pevnost v tahu Rm (MPa)<\/th>Mez kluzu Rp0,2 p\u0159i 0,2% (MPa)<\/th><\/tr><\/thead>
O<\/td>160\u2013200<\/td>\u226560<\/td><\/tr>
H22<\/td>190\u2013230<\/td>\u2265120<\/td><\/tr>
H24<\/td>210\u2013250<\/td>\u2265140<\/td><\/tr>
H26<\/td>230\u2013270<\/td>\u2265170<\/td><\/tr>
H32<\/td>190\u2013230<\/td>\u2265120<\/td><\/tr>
H34<\/td>210\u2013250<\/td>\u2265140<\/td><\/tr>
H36<\/td>230\u2013270<\/td>\u2265170<\/td><\/tr>
H38<\/td>\u2265255<\/td>\u2265200<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Pro zde porovn\u00e1van\u00e9 stavy H32 jsou uveden\u00e1 minima meze kluzu 120 MPa pro 5251 dle EN 485-2 a 160 MPa pro 5052 dle ASTM B209. To je 25% rozd\u00edl mezi t\u011bmito specifikovan\u00fdmi limity, nikoli u ka\u017ed\u00e9ho v\u00fdrobku. N\u00e1vrh vy\u017eaduj\u00edc\u00ed 160 MPa se nem\u016f\u017ee spol\u00e9hat na materi\u00e1l garantovan\u00fd pouze na 120 MPa. P\u0159ed z\u00e1m\u011bnou zkontrolujte p\u0159esn\u00e9 vyd\u00e1n\u00ed normy a tlou\u0161\u0165ku.<\/p>\n\n\n\n

Nenahrazujte H2x za H3x bez schv\u00e1len\u00ed.<\/strong> H22 je deforma\u010dn\u011b zpevn\u011bn\u00fd a pot\u00e9 \u010d\u00e1ste\u010dn\u011b vy\u017e\u00edhan\u00fd; H32 je deforma\u010dn\u011b zpevn\u011bn\u00fd a pot\u00e9 stabilizovan\u00fd. Shodn\u00e9 hodnoty v t\u00e9to tabulce ne\u010din\u00ed jejich zpracov\u00e1n\u00ed identick\u00fdm. Oba mus\u00ed spl\u0148ovat po\u017eadavky objednan\u00e9 normy. Dod\u00e1vejte stav uveden\u00fd na v\u00fdkrese.<\/p>\n\n\n\n

Norma m\u011bn\u00ed p\u0159ej\u00edmac\u00ed limity.<\/strong> Po\u017eadavky EN a AS\/NZS se mohou pro stejnou slitinu a stav li\u0161it. V\u00fdsledek m\u016f\u017ee vyhovovat jedn\u00e9 specifikaci a nevyhovovat jin\u00e9. Uve\u010fte v popt\u00e1vce vyd\u00e1n\u00ed normy a tlou\u0161\u0165ku a v\u00fdslovn\u011b po\u017e\u00e1dejte o po\u017eadavek na mez kluzu pou\u017eit\u00fd ve va\u0161em n\u00e1vrhu.<\/p>\n\n\n\n

Tv\u00e1\u0159en\u00ed a volba temperace<\/h2>\n\n\n\n

P\u0159i v\u00fdb\u011bru tv\u00e1\u0159ec\u00edho stavu kontrolujte krom\u011b pevnosti tak\u00e9 ta\u017enost. Ve stejn\u00e9m p\u00e1smu 1,5\u20133,0 mm EN 485-2 garantuje \u226516 % p\u0159i O, \u22658 % p\u0159i H22 a H32, \u22656 % p\u0159i H24 a H34, \u22655 % p\u0159i H26 a H36 a \u22653 % p\u0159i H28 a H38.<\/p>\n\n\n\n

O se hod\u00ed pro hlubok\u00e9 ta\u017een\u00ed a v\u00e1lcov\u00e1n\u00ed za studena; H22 a H24 udr\u017euj\u00ed tvar bez n\u00e1ro\u010dn\u00e9ho tv\u00e1\u0159en\u00ed; H32 je pracovn\u00ed k\u016f\u0148, \u010dtvrtotvrd\u00fd, stabilizovan\u00fd, s nej\u0161ir\u0161\u00edm rozsahem tlou\u0161t\u011bk; H34 p\u0159id\u00e1v\u00e1 20 MPa meze kluzu za re\u00e1lnou cenu v ta\u017enosti; H36 a H38 ponech\u00e1vaj\u00ed jen st\u0159\u00edh\u00e1n\u00ed a oh\u00fdb\u00e1n\u00ed s velk\u00fdm polom\u011brem.<\/p>\n\n\n\n

N\u00ed\u017ee uveden\u00e9 polom\u011bry ohybu jsou doporu\u010den\u00ed, nikoli z\u00e1ruky; t znamen\u00e1 tlou\u0161\u0165ku plechu. P\u0159ed jejich pou\u017eit\u00edm potvr\u010fte orientaci linie ohybu vzhledem ke sm\u011bru v\u00e1lcov\u00e1n\u00ed.<\/p>\n\n\n\n

Temperament<\/th>0,4 mm<\/th>0,8 mm<\/th>1,6 mm<\/th>3,2 mm<\/th><\/tr><\/thead>
O<\/td>0t<\/td>0t<\/td>0t<\/td>\u00bdt<\/td><\/tr>
H32<\/td>0t<\/td>0t<\/td>1t<\/td>1\u00bdt<\/td><\/tr>
H34<\/td>0t<\/td>1t<\/td>1\u00bdt<\/td>2t<\/td><\/tr>
H36<\/td>1t<\/td>1t<\/td>1\u00bdt<\/td>2\u00bdt<\/td><\/tr>
H38<\/td>1t<\/td>1\u00bdt<\/td>2\u00bdt<\/td>3t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Skute\u010dn\u00e9 limity ohybu z\u00e1vis\u00ed na orientaci linie ohybu, stavu n\u00e1stroj\u016f, \u0161\u00ed\u0159ce matrice a dodan\u00e9m stavu. H22 a H32 se mohou chovat odli\u0161n\u011b i p\u0159i podobn\u00fdch hodnot\u00e1ch pevnosti. Pro t\u011bsn\u00e9 ohyby nejprve vyzkou\u0161ejte p\u00e1s materi\u00e1lu s zam\u00fd\u0161len\u00fdm n\u00e1strojem.<\/p>\n\n\n\n

Koroze a provozn\u00ed teplota<\/h2>\n\n\n\n

5251 m\u00e1 dobrou odolnost v\u016f\u010di mo\u0159sk\u00e9 vod\u011b, soln\u00e9 mlze a atmosf\u00e9rick\u00e9 expozici. P\u0159ed rozhodnut\u00edm, zda je pot\u0159ebn\u00e1 ochrann\u00e1 povrchov\u00e1 \u00faprava, zkontrolujte skute\u010dn\u00e9 prost\u0159ed\u00ed.<\/p>\n\n\n\n

Slitiny 5xxx s vysok\u00fdm obsahem ho\u0159\u010d\u00edku mohou p\u0159i dlouhodob\u00e9 expozici zv\u00fd\u0161en\u00fdm teplot\u00e1m vytv\u00e1\u0159et f\u00e1ze bohat\u00e9 na ho\u0159\u010d\u00edk pod\u00e9l hranic zrn, co\u017e sni\u017euje odolnost v\u016f\u010di mezikrystalov\u00e9 korozi a korozi pod nap\u011bt\u00edm. To vysv\u011btluje opatrnost p\u0159i trval\u00e9m provozu nad 65 \u00b0C. S obsahem Mg nejv\u00fd\u0161e 2,4 % je 5251 v\u016f\u010di tomuto mechanismu m\u00e9n\u011b n\u00e1chyln\u00e1, ale jej\u00ed p\u0159\u00edpustn\u00e1 teplota st\u00e1le z\u00e1vis\u00ed na pevnosti, sva\u0159ovac\u00edm p\u0159\u00eddavn\u00e9m materi\u00e1lu a provozn\u00edch podm\u00ednk\u00e1ch. H116 nebo H321 neodstra\u0148uje riziko vysok\u00fdch teplot u 5083.<\/p>\n\n\n\n

Pro trval\u00e9 pono\u0159en\u00ed porovnejte po\u017eadavky na korozi a zku\u0161ebn\u00ed data p\u0159ed nahrazen\u00edm specifikovan\u00e9 5083 materi\u00e1lem 5251. Samotn\u00fd obsah ho\u0159\u010d\u00edku neprokazuje ekvivalenci.<\/p>\n\n\n\n

Pro jednotn\u00fd dekorativn\u00ed eloxovan\u00fd povrch nejprve schvalte vzorek. Slo\u017een\u00ed, stav povrchu a zpracov\u00e1n\u00ed ovliv\u0148uj\u00ed vzhled. Pokud je v\u00fdsledek nevhodn\u00fd, zva\u017ete 5005 nebo 1050.<\/p>\n\n\n\n

Sva\u0159ov\u00e1n\u00ed: Volba p\u0159\u00eddavn\u00e9ho materi\u00e1lu, kter\u00e1 b\u00fdv\u00e1 nespr\u00e1vn\u011b citov\u00e1na<\/h2>\n\n\n\n
\"Sva\u0159ov\u00e1n\u00ed:<\/figure>\n\n\n\n

5251 se snadno sva\u0159uje metodami GMAW a GTAW a volba p\u0159\u00eddavn\u00e9ho materi\u00e1lu je u\u017e\u0161\u00ed, ne\u017e nazna\u010duje v\u011bt\u0161ina datov\u00fdch list\u016f.<\/p>\n\n\n\n

5356<\/strong> se b\u011b\u017en\u011b doporu\u010duje pro spoje 5251-5251 a n\u011bkter\u00e9 spoje r\u016fzn\u00fdch slitin. Potvr\u010fte vhodnost pro oba z\u00e1kladn\u00ed kovy a provozn\u00ed podm\u00ednky; jeho slo\u017een\u00ed se li\u0161\u00ed od 5251.<\/p>\n\n\n\n

4043<\/strong> m\u016f\u017ee vyhovovat ur\u010dit\u00fdm spoj\u016fm mezi 5251 a slitinami s ni\u017e\u0161\u00edm obsahem ho\u0159\u010d\u00edku nebo bez ho\u0159\u010d\u00edku. Nerozhodujte pouze podle \u010deledi slitin: zkontrolujte pokyny pro p\u0159\u00eddavn\u00fd materi\u00e1l pro p\u0159esnou dvojici z\u00e1kladn\u00edch kov\u016f a kvalifikujte postup. Nen\u00ed automaticky nevhodn\u00fd jen proto, \u017ee ob\u011b \u010d\u00e1sti jsou z 5251.<\/p>\n\n\n\n

Sva\u0159ov\u00e1n\u00ed zm\u011bk\u010duje za studena tv\u00e1\u0159en\u00fd materi\u00e1l v tepeln\u011b ovlivn\u011bn\u00e9 z\u00f3n\u011b a tepeln\u00e9 zpracov\u00e1n\u00ed toto zpevn\u011bn\u00ed nem\u016f\u017ee obnovit. Pou\u017e\u00edvejte p\u0159\u00edslu\u0161n\u00e9 n\u00e1vrhov\u00e9 hodnoty pro sva\u0159ovan\u00e9 spoje, nikoli pevnost nesva\u0159ovan\u00e9ho stavu H.<\/p>\n\n\n\n

5251 vs 5052, 5754 a 5083<\/h2>\n\n\n\n
\"Chemick\u00e9<\/figure>\n\n\n\n
Stupe\u0148 slitiny<\/th>5251<\/th>5052<\/th>5754<\/th>5083<\/th><\/tr><\/thead>
Standardn\u00ed<\/td>EN 485-2, AS\/NZS 1734<\/td>ASTM B209, EN 485-2<\/td>ASTM B209, EN 485-2<\/td>ASTM B209, B928<\/td><\/tr>
Mg (%)<\/td>1.70\u20132.40<\/td>2.2\u20132.8<\/td>2.6\u20133.6<\/td>4.0\u20134.9<\/td><\/tr>
Cr (%)<\/td>0,15 max<\/td>0.15\u20130.35<\/td>max. 0,30<\/td>0.05\u20130.25<\/td><\/tr>
Minim\u00e1ln\u00ed smluvn\u00ed mez kluzu H32 (MPa)<\/td>120 (EN, v\u00fd\u0161e uveden\u00e9 podm\u00ednky)<\/td>160 (B209, v\u00fd\u0161e uveden\u00e9 podm\u00ednky)<\/td>Zkontrolujte normu a tlou\u0161\u0165ku<\/td>Zkontrolujte normu a tlou\u0161\u0165ku<\/td><\/tr>
N\u00e1mo\u0159n\u00ed stavy<\/td>Nevztahuje se<\/td>Nevztahuje se<\/td>Nevztahuje se<\/td>H116, H321<\/td><\/tr>
\u0158\u00e1dek ASTM B209<\/td>Ne<\/td>Ano<\/td>Ano<\/td>Ano<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Ve srovn\u00e1n\u00ed s 5052<\/strong>, nejprve zkontrolujte specifikovanou slitinu a normu. V\u00fdkres vy\u017eaduj\u00edc\u00ed B209 5052 nelze splnit s 5251 bez schv\u00e1len\u00e9 zm\u011bny. Stejn\u011b tak nahrazen\u00ed specifikovan\u00e9 5251 materi\u00e1lem 5052-H32<\/a> vy\u017eaduje schv\u00e1len\u00ed a kontroly po\u017eadavk\u016f na pevnost, tv\u00e1\u0159en\u00ed a korozi.<\/p>\n\n\n\n

Ve srovn\u00e1n\u00ed s 5754<\/strong>, rozsahy ho\u0159\u010d\u00edku se li\u0161\u00ed: 5251 je 1,70\u20132,40 %, zat\u00edmco 5754<\/a> je 2,6\u20133,6 %. Ob\u011b mohou vyhovovat sva\u0159ovan\u00fdm plechov\u00fdm prac\u00edm, ale nejsou automatick\u00fdmi n\u00e1hradami. Porovnejte po\u017eadavky normy p\u0159i objednan\u00e9m stavu a tlou\u0161\u0165ce a pot\u00e9 ov\u011b\u0159te dodan\u00fd materi\u00e1l v\u016f\u010di nim. Jak\u00e1koli zm\u011bna slitiny vy\u017eaduje p\u0159ezkoum\u00e1n\u00ed n\u00e1vrhu a sva\u0159ov\u00e1n\u00ed.<\/p>\n\n\n\n

Ve srovn\u00e1n\u00ed s 5083<\/strong> v trval\u00e9m pono\u0159en\u00ed nen\u00ed srovn\u00e1n\u00ed. Tam, kde v\u00fdkres po\u017eaduje n\u00e1mo\u0159n\u00ed stav \u0159\u00edzen\u00fd koroz\u00ed, 5083<\/a> je slitina, kter\u00e1 takov\u00fd stav m\u00e1.<\/p>\n\n\n\n

Go \/ No-Go a kde se 5251 pou\u017e\u00edv\u00e1<\/h2>\n\n\n\n
\"Go<\/figure>\n\n\n\n

Go<\/strong> kdy\u017e 5251 spl\u0148uje v\u00fdkres, materi\u00e1lovou normu a schv\u00e1len\u00fd v\u00fdrobn\u00ed postup. U tv\u00e1\u0159en\u00fdch nebo sva\u0159ovan\u00fdch sestav zkontrolujte skute\u010dn\u00e9 zat\u00ed\u017een\u00ed, expozici korozi a teplotu. N\u00edzk\u00fd obsah ho\u0159\u010d\u00edku sni\u017euje jedno riziko senzibilizace; nestanovuje teplotn\u00ed hodnocen\u00ed sestavy. Pro dlouhodob\u00fd hork\u00fd provoz p\u0159ezkoumejte jak sva\u0159ovac\u00ed p\u0159\u00eddavn\u00fd materi\u00e1l, tak plech: 5356 m\u016f\u017ee zav\u00e9st vysoce ho\u0159\u010d\u00edkov\u00fd svarov\u00fd kov.<\/p>\n\n\n\n

No-go<\/strong> kdy\u017e 5251 nespad\u00e1 pod specifikovanou v\u00fdrobkovou normu, zvolen\u00fd stav nem\u016f\u017ee garantovat po\u017eadovanou mez kluzu nebo po\u017eadovan\u00fd stav pro mo\u0159skou korozi nen\u00ed k dispozici. Pro dekorativn\u00ed eloxov\u00e1n\u00ed schvalte vzorek p\u0159ed z\u00e1vazkem.<\/p>\n\n\n\n

Typick\u00e9 aplikace zahrnuj\u00ed trupy a n\u00e1stavby mal\u00fdch plavidel, panely vozidel, sila, kontejnery a architektonick\u00e9 v\u00fdlisky. P\u0159i 2,69 g\/cm\u00b3 v\u00e1\u017e\u00ed p\u0159i stejn\u00e9m objemu asi jednu t\u0159etinu hmotnosti oceli. Tato hmotnostn\u00ed v\u00fdhoda nestanovuje nosnost; konstruk\u010dn\u00ed d\u00edly st\u00e1le vy\u017eaduj\u00ed n\u00e1vrhov\u00e9 kontroly.<\/p>\n\n\n\n

Specifikace a n\u00e1kup 5251<\/h2>\n\n\n\n
\"Specifikace<\/figure>\n\n\n\n

Do objedn\u00e1vky uve\u010fte tyto \u010dty\u0159i po\u017eadavky:<\/p>\n\n\n\n

    \n
  1. Name the standard, not just the alloy.<\/strong>\u00a0\u201c5251-H32 podle EN 485-2\u201d nenech\u00e1v\u00e1 nic k v\u00fdkladu; samotn\u00e9 \u201c5251-H32\u201d umo\u017e\u0148uje certifik\u00e1t podle normy s odli\u0161n\u00fdmi limity.<\/li>\n\n\n\n
  2. Uve\u010fte po\u017eadovanou mez kluzu.<\/strong>\u00a0Pokud n\u00e1vrh vy\u017eaduje 160 MPa, uve\u010fte to a zkontrolujte, kter\u00fd stav to garantuje. Zde uveden\u00e9 minimum H32 to nezaru\u010duje.<\/li>\n\n\n\n
  3. Uve\u010fte stav p\u0159esn\u011b.<\/strong>\u00a0H22 a H32 nejsou zam\u011bniteln\u00e9, ani kdy\u017e se tabulkov\u00e9 hodnoty shoduj\u00ed.<\/li>\n\n\n\n
  4. Vy\u017eadujte EN 10204 3.1.<\/strong>\u00a0Tento certifik\u00e1t obsahuje skute\u010dn\u00e9 chemick\u00e9 slo\u017een\u00ed a mechanick\u00e9 v\u00fdsledky tavby, podepsan\u00e9 ve v\u00fdrobn\u00edm z\u00e1vod\u011b, a umo\u017e\u0148uje v\u00e1m ov\u011b\u0159it materi\u00e1l proti limit\u016fm, kter\u00e9 jste specifikovali.<\/li>\n<\/ol>\n\n\n\n

    V\u00e1lcujeme plech a svitky 5251 ve stavech O, H22, H24, H32, H34 a H38 a \u0159e\u017eeme desky podle va\u0161eho v\u00fdkresu; na\u0161e Hlin\u00edkov\u00fd plech a svitek 5251<\/a> str\u00e1nka uv\u00e1d\u00ed tlou\u0161\u0165ky a \u0161\u00ed\u0159ky, kter\u00e9 vyr\u00e1b\u00edme. Pro nestandardn\u00ed rozm\u011bry a stavy n\u00e1s po\u017e\u00e1dejte o potvrzen\u00ed v\u00fdrobn\u00edch mo\u017enost\u00ed a dodac\u00ed lh\u016fty, obvykle 10\u201360 dn\u00ed u zak\u00e1zek s n\u00edzk\u00fdm minim\u00e1ln\u00edm mno\u017estv\u00edm. Pro ty\u010de, trubky nebo dr\u00e1t potvr\u010fte p\u0159\u00edslu\u0161nou v\u00fdrobkovou normu a po\u017eadovan\u00e9 vlastnosti, m\u00edsto abyste aplikovali hodnoty pro plech.<\/p>\n\n\n\n

    Z\u00e1v\u011br<\/h2>\n\n\n\n

    5251 a 5052 maj\u00ed r\u016fzn\u00e9 limity slo\u017een\u00ed a nelze je pova\u017eovat za automatick\u00e9 n\u00e1hrady. Jejich garantovan\u00e1 pevnost tak\u00e9 z\u00e1vis\u00ed na norm\u011b, stavu a tlou\u0161\u0165ce. Specifikujte 5251 podle p\u0159\u00edslu\u0161n\u00e9 v\u00fdrobkov\u00e9 normy, zkontrolujte po\u017eadavky na tv\u00e1\u0159en\u00ed a provoz a z\u00edskejte schv\u00e1len\u00ed pro z\u00e1m\u011bny. Jeho n\u00edzk\u00fd obsah ho\u0159\u010d\u00edku sni\u017euje riziko senzibilizace vysok\u00fdm obsahem ho\u0159\u010d\u00edku, ale neodstra\u0148uje kontroly teploty a sva\u0159ov\u00e1n\u00ed.<\/p>\n\n\n\n

    Dod\u00e1v\u00e1me 5251 podle p\u0159\u00edslu\u0161n\u00e9 normy dohodnut\u00e9 pro va\u0161i objedn\u00e1vku, se stavem a minimem meze kluzu uveden\u00fdm v objedn\u00e1vce a certifik\u00e1tem 3.1 nesouc\u00edm skute\u010dn\u00e9 v\u00fdsledky dan\u00e9 tavby.<\/p>\n\n\n\n

    Po\u0161lete n\u00e1m sv\u016fj v\u00fdkres s \u010d\u00edslem normy, stavem a po\u017eadovanou mez\u00ed kluzu a my potvrd\u00edme, zda je 5251 spr\u00e1vnou odpov\u011bd\u00ed, nebo zda v\u00e1s tam dostane 5754 s m\u00e9n\u011b pap\u00edrov\u00e1n\u00edm.<\/p>\n\n\n\n

    \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n

    Je 5251 tot\u00e9\u017e jako 5052?<\/h3>\n\n\n\n

    Ne. Limity slo\u017een\u00ed se li\u0161\u00ed, i kdy\u017e se p\u0159ekr\u00fdvaj\u00ed na hranic\u00edch chromu a manganu. Shodn\u00e1 chemie sama o sob\u011b neprokazuje ekvivalenci. P\u0159ed z\u00e1m\u011bnou zkontrolujte specifikovanou normu, stav, tlou\u0161\u0165ku a mechanick\u00e9 po\u017eadavky.<\/p>\n\n\n\n

    Pro\u010d 5251 nen\u00ed v ASTM B209?<\/h3>\n\n\n\n

    V\u00fdrobkov\u00e9 normy uv\u00e1d\u011bj\u00ed vybran\u00e9 slitiny a stavy; samotn\u00e1 registrace nezaji\u0161\u0165uje za\u0159azen\u00ed. 5251 je specifikov\u00e1na v EN 485 a AS\/NZS 1734, nikoli v B209. Pokud je vy\u017eadov\u00e1na B209, posu\u010fte zahrnutou slitinu, jako je 5052 nebo 5754, a z\u00edskejte schv\u00e1len\u00ed z\u00e1m\u011bny.<\/p>\n\n\n\n

    Jak\u00fd p\u0159\u00eddavn\u00fd dr\u00e1t m\u00e1m pou\u017e\u00edt pro 5251?<\/h3>\n\n\n\n

    5356 je b\u011b\u017en\u00e1 volba. V z\u00e1vislosti na obou z\u00e1kladn\u00edch kovech a provozn\u00edch po\u017eadavc\u00edch m\u016f\u017ee b\u00fdt vhodn\u00e1 tak\u00e9 4043. Zkontrolujte pokyny pro p\u0159\u00eddavn\u00fd materi\u00e1l pro p\u0159esn\u00fd spoj a potvr\u010fte volbu kvalifikac\u00ed postupu, zejm\u00e9na u r\u016fzn\u00fdch slitin nebo provozu za zv\u00fd\u0161en\u00fdch teplot.<\/p>\n\n\n\n

    Jak\u00e1 je dodac\u00ed lh\u016fta a minim\u00e1ln\u00ed objedn\u00e1vka pro plech 5251?<\/h3>\n\n\n\n

    Zak\u00e1zkov\u00e9 s\u00e9rie s n\u00edzk\u00fdm MOQ jsou k dispozici; skladov\u00e9 tlou\u0161\u0165ky jsou rychlej\u0161\u00ed. Typick\u00e1 dodac\u00ed lh\u016fta je 10\u201360 dn\u00ed v z\u00e1vislosti na tlou\u0161\u0165ce, \u0161\u00ed\u0159ce a stavu materi\u00e1lu a ka\u017ed\u00e1 objedn\u00e1vka je dod\u00e1v\u00e1na s MTC.<\/p>","protected":false},"excerpt":{"rendered":"

    5251 aluminum is a 2% magnesium, 0.3% manganese sheet and plate alloy, registered by the Aluminum Association and specified in EN 485 and AS\/NZS 1734 \u2014 but it holds no row in ASTM B209. State the applicable EN or AS\/NZS standard in the order so the supplier knows which strength limits to meet. 5251 is […]<\/p>\n","protected":false},"author":1,"featured_media":10785,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"5251 Aluminum Sheet: Properties, Tempers and 5052 Comparison","_seopress_titles_desc":"Buying 5251 aluminum sheet? See the EN 573-3 composition, the EN 485-2 temper ladder, the real gap against 5052, and the four questions to settle before you order.","_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-8661","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\/8661","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=8661"}],"version-history":[{"count":3,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8661\/revisions"}],"predecessor-version":[{"id":10791,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/posts\/8661\/revisions\/10791"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media\/10785"}],"wp:attachment":[{"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/media?parent=8661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/categories?post=8661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/premiumalu.com\/cs\/wp-json\/wp\/v2\/tags?post=8661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}