{"id":9927,"date":"2025-07-08T02:03:30","date_gmt":"2025-07-08T02:03:30","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=9927"},"modified":"2025-07-08T02:03:30","modified_gmt":"2025-07-08T02:03:30","slug":"jaky-je-rozdil-mezi-nerezovou-oceli-a-hlinikem","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/what-is-the-difference-between-stainless-steel-and-aluminum\/","title":{"rendered":"Jak\u00fd je rozd\u00edl mezi nerezovou ocel\u00ed a hlin\u00edkem?"},"content":{"rendered":"

\"Profil
Hlin\u00edkov\u00fd profil ide\u00e1ln\u00ed pro lehk\u00e9 a vodiv\u00e9 konstruk\u010dn\u00ed pou\u017eit\u00ed<\/figcaption><\/figure>\n<\/p>\n

V\u011bt\u0161ina lid\u00ed si plete hlin\u00edk a nerezovou ocel. Vypadaj\u00ed podobn\u011b. V\u00fdb\u011br \u0161patn\u00e9ho z nich v\u0161ak m\u016f\u017ee st\u00e1t va\u0161i firmu \u010das, pen\u00edze, a dokonce i ne\u00fasp\u011bch v\u00fdrobku.<\/p>\n

Nerezov\u00e1 ocel je pevn\u011bj\u0161\u00ed a t\u011b\u017e\u0161\u00ed, zat\u00edmco hlin\u00edk je leh\u010d\u00ed a odoln\u011bj\u0161\u00ed proti korozi. Spr\u00e1vn\u00e1 volba z\u00e1vis\u00ed na po\u017eadavku va\u0161eho projektu na hmotnost, pevnost nebo odolnost v\u016f\u010di pov\u011btrnostn\u00edm vliv\u016fm a chemik\u00e1li\u00edm.<\/strong><\/p>\n

Oba z\u00e1\u0159\u00ed, ale jejich v\u00fdkon je naprosto odli\u0161n\u00fd. Pokud pracujete ve stavebnictv\u00ed, v\u00fdrob\u011b nebo designu, mus\u00edte v\u011bd\u011bt, kdy pou\u017e\u00edt kter\u00fd z nich.<\/p>\n

Jak\u00fd je hlavn\u00ed rozd\u00edl v pevnosti mezi nerezovou ocel\u00ed a hlin\u00edkem?<\/h2>\n

Hlin\u00edk je lehk\u00fd, ale ne slab\u00fd. Nerezov\u00e1 ocel je t\u011b\u017ek\u00e1 a siln\u00e1. Znalost jejich s\u00edly v\u00e1m pom\u016f\u017ee vybrat tu spr\u00e1vnou pro va\u0161i pr\u00e1ci.<\/p>\n

Nerezov\u00e1 ocel je a\u017e t\u0159ikr\u00e1t pevn\u011bj\u0161\u00ed v tahu ne\u017e hlin\u00edk. D\u00edky tomu je vhodn\u011bj\u0161\u00ed pro n\u00e1ro\u010dn\u00e9 pou\u017eit\u00ed. Hlin\u00edk je st\u00e1le pevn\u00fd, ale je vhodn\u011bj\u0161\u00ed pro lehk\u00e9 aplikace.<\/strong><\/p>\n

\"Vysokopevnostn\u00ed
Vysokopevnostn\u00ed profily z hlin\u00edkov\u00e9 slitiny jako konstruk\u010dn\u00ed alternativa k oceli<\/figcaption><\/figure>\n<\/p>\n

Jak\u00e9 je srovn\u00e1n\u00ed jejich pevnostn\u00edch hodnot?<\/h3>\n

Pod\u00edvejme se na konkr\u00e9tn\u00ed \u010d\u00edsla:<\/p>\n\n\n\n\n\n\n\n
Majetek<\/th>\nHlin\u00edk (6061-T6)<\/th>\nNerezov\u00e1 ocel (304)<\/th>\n<\/tr>\n<\/thead>\n
Pevnost v tahu (MPa)<\/td>\n~290<\/td>\n~505<\/td>\n<\/tr>\n
Mez kluzu (MPa)<\/td>\n~241<\/td>\n~215<\/td>\n<\/tr>\n
Modul pru\u017enosti<\/td>\n69 GPa<\/td>\n200 GPa<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

I kdy\u017e m\u00e1 hlin\u00edk v n\u011bkter\u00fdch p\u0159\u00edpadech vy\u0161\u0161\u00ed mez kluzu, nerezov\u00e1 ocel nab\u00edz\u00ed mnohem vy\u0161\u0161\u00ed pevnost v tahu a tuhost. Proto se \u010dasto pou\u017e\u00edv\u00e1 pro mosty, r\u00e1my automobil\u016f a konstrukce s vysokou odolnost\u00ed proti n\u00e1raz\u016fm.<\/p>\n

Kdy je to d\u016fle\u017eit\u00e9?<\/h3>\n

Pokud navrhujete v\u00fdrobek, kter\u00fd mus\u00ed odolat velk\u00e9 s\u00edle, nap\u0159\u00edklad z\u00e1bradl\u00ed, nosn\u00fd r\u00e1m nebo konstruk\u010dn\u00ed nosn\u00edk, je nerezov\u00e1 ocel tou nejlep\u0161\u00ed volbou. Hlin\u00edk je naopak ide\u00e1ln\u00ed pro leteck\u00e9 d\u00edly, okenn\u00ed r\u00e1my nebo p\u0159enosn\u00e9 n\u00e1\u0159ad\u00ed, kde z\u00e1le\u017e\u00ed sp\u00ed\u0161e na hmotnosti ne\u017e na hrub\u00e9 s\u00edle.<\/p>\n

<\/svg> Nerezov\u00e1 ocel je obecn\u011b pevn\u011bj\u0161\u00ed ne\u017e hlin\u00edk.<\/b>Pravda<\/span><\/p>

Nerezov\u00e1 ocel m\u00e1 obvykle vy\u0161\u0161\u00ed pevnost v tahu ne\u017e hlin\u00edk, tak\u017ee je vhodn\u011bj\u0161\u00ed pro nosn\u00e9 a konstruk\u010dn\u00ed aplikace.<\/p><\/div>\n

<\/svg> Hlin\u00edk je za v\u0161ech podm\u00ednek pevn\u011bj\u0161\u00ed ne\u017e nerezov\u00e1 ocel.<\/b>False<\/span><\/p>

Zat\u00edmco hlin\u00edk je lehk\u00fd a pevn\u00fd vzhledem ke sv\u00e9 hmotnosti, nerezov\u00e1 ocel m\u00e1 za v\u011bt\u0161iny podm\u00ednek vy\u0161\u0161\u00ed pevnost v tahu.<\/p><\/div>\n

Pro\u010d je nerezov\u00e1 ocel t\u011b\u017e\u0161\u00ed ne\u017e hlin\u00edk?<\/h2>\n

Hlin\u00edk je lehk\u00fd. Nerezov\u00e1 ocel je pevn\u00e1. Rozd\u00edl v jejich hmotnosti nen\u00ed zanedbateln\u00fd - m\u016f\u017ee zm\u011bnit zp\u016fsob, jak\u00fdm je konstrukce postavena.<\/p>\n

Nerezov\u00e1 ocel m\u00e1 p\u0159ibli\u017en\u011b 2,5kr\u00e1t v\u011bt\u0161\u00ed hustotu ne\u017e hlin\u00edk, a je proto mnohem t\u011b\u017e\u0161\u00ed. Tato dodate\u010dn\u00e1 hmotnost m\u016f\u017ee b\u00fdt v z\u00e1vislosti na projektu bu\u010f v\u00fdhodou, nebo nev\u00fdhodou.<\/strong><\/p>\n

\"Extrudovan\u00e9
Lehk\u00fd extrudovan\u00fd hlin\u00edkov\u00fd r\u00e1mov\u00fd syst\u00e9m pro konstrukce zam\u011b\u0159en\u00e9 na mobilitu<\/figcaption><\/figure>\n<\/p>\n

O kolik je t\u011b\u017e\u0161\u00ed?<\/h3>\n

Zde je jednoduch\u00e9 srovn\u00e1n\u00ed:<\/p>\n\n\n\n\n\n\n
Materi\u00e1l<\/th>\nHustota (g\/cm3)<\/th>\n<\/tr>\n<\/thead>\n
Hlin\u00edk<\/td>\n2.70<\/td>\n<\/tr>\n
Nerezov\u00e1 ocel<\/td>\n8.00<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Tento rozd\u00edl znamen\u00e1, \u017ee metrov\u00e1 ty\u010d z nerezov\u00e9 oceli v\u00e1\u017e\u00ed t\u00e9m\u011b\u0159 t\u0159ikr\u00e1t v\u00edce ne\u017e stejn\u00e1 ty\u010d z hlin\u00edku.<\/p>\n

Co to znamen\u00e1 pro va\u0161i firmu?<\/h3>\n

Pokud p\u0159epravujete velk\u00e9 mno\u017estv\u00ed materi\u00e1lu, hmotnost ovliv\u0148uje n\u00e1klady. Pokud vyr\u00e1b\u00edte pohyblivou sou\u010d\u00e1stku, jako je robotick\u00e9 rameno nebo dron, m\u016f\u017ee dodate\u010dn\u00e1 hmotnost sn\u00ed\u017eit v\u00fdkon. V t\u011bchto p\u0159\u00edpadech v\u00edt\u011bz\u00ed hlin\u00edk.<\/p>\n

Pokud v\u0161ak stav\u00edte n\u011bco, co mus\u00ed z\u016fstat na sv\u00e9m m\u00edst\u011b a vydr\u017eet tlak, jako nap\u0159\u00edklad z\u00e1bradl\u00ed na balkon\u011b nebo r\u00e1m kuchy\u0148sk\u00e9 linky, pak hmotnost nerezov\u00e9 oceli zvy\u0161uje stabilitu a odolnost.<\/p>\n

<\/svg> Nerezov\u00e1 ocel je t\u011b\u017e\u0161\u00ed, proto\u017ee m\u00e1 vy\u0161\u0161\u00ed hustotu.<\/b>Pravda<\/span><\/p>

Nerezov\u00e1 ocel m\u00e1 v\u011bt\u0161\u00ed hustotu ne\u017e hlin\u00edk, a proto je p\u0159i stejn\u00e9m objemu t\u011b\u017e\u0161\u00ed.<\/p><\/div>\n

<\/svg> Hlin\u00edk je t\u011b\u017e\u0161\u00ed ne\u017e nerezov\u00e1 ocel.<\/b>False<\/span><\/p>

Hlin\u00edk je d\u00edky sv\u00e9 ni\u017e\u0161\u00ed hustot\u011b ve srovn\u00e1n\u00ed s nerezovou ocel\u00ed mnohem leh\u010d\u00ed.<\/p><\/div>\n

Jak\u00e1 je jejich odolnost proti korozi?<\/h2>\n

Koroze roze\u017e\u00edr\u00e1 kov. N\u011bkter\u00e9 kovy s n\u00ed bojuj\u00ed l\u00e9pe ne\u017e jin\u00e9. Kl\u00ed\u010dem k dlouhotrvaj\u00edc\u00edmu designu je pochopit, jak hlin\u00edk a nerezov\u00e1 ocel odol\u00e1vaj\u00ed pov\u011btrnostn\u00edm vliv\u016fm.<\/p>\n

Hlin\u00edk vytv\u00e1\u0159\u00ed p\u0159irozenou vrstvu oxidu, kter\u00e1 odol\u00e1v\u00e1 korozi, zejm\u00e9na ve slan\u00e9m nebo mo\u0159sk\u00e9m prost\u0159ed\u00ed. Korozi odol\u00e1v\u00e1 i nerezov\u00e1 ocel, ale pro jej\u00ed pou\u017eit\u00ed v n\u00e1ro\u010dn\u00fdch podm\u00ednk\u00e1ch jsou zapot\u0159eb\u00ed specifick\u00e9 t\u0159\u00eddy.<\/strong><\/p>\n

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00fd profil odoln\u00fd proti korozi pou\u017e\u00edvan\u00fd v \u010dist\u00e9m a mo\u0159sk\u00e9m prost\u0159ed\u00ed<\/figcaption><\/figure>\n<\/p>\n

Co je chr\u00e1n\u00ed?<\/h3>\n
    \n
  • Hlin\u00edk<\/strong>: na vzduchu se vytv\u00e1\u0159\u00ed tenk\u00e1, tvrd\u00e1 vrstva oxidu. Tato samoregenera\u010dn\u00ed vrstva zastavuje dal\u0161\u00ed korozi.<\/li>\n
  • Nerezov\u00e1 ocel<\/strong>: obsahuje chrom, kter\u00fd reaguje s kysl\u00edkem a vytv\u00e1\u0159\u00ed podobnou ochrannou vrstvu.<\/li>\n<\/ul>\n

    Ne v\u0161echny nerezov\u00e9 oceli jsou v\u0161ak stejn\u00e9. Nap\u0159\u00edklad nerezov\u00e1 ocel 316 je mnohem odoln\u011bj\u0161\u00ed proti korozi ne\u017e 304. Na slan\u00e9m vzduchu nebo p\u0159i p\u016fsoben\u00ed chemik\u00e1li\u00ed \u010dasto l\u00e9pe odol\u00e1v\u00e1 hlin\u00edk, pokud nen\u00ed pou\u017eita speci\u00e1ln\u00ed nerezov\u00e1 ocel.<\/p>\n

    V jak\u00e9m prost\u0159ed\u00ed pracujete?<\/h3>\n

    Pokud se v\u00e1\u0161 projekt nach\u00e1z\u00ed v bl\u00edzkosti oce\u00e1nu nebo je vystaven velk\u00e9mu mno\u017estv\u00ed vody, m\u016f\u017ee b\u00fdt nejlep\u0161\u00ed volbou hlin\u00edk - pokud ov\u0161em nepou\u017eijete nerezovou ocel 316, kter\u00e1 je mnohem dra\u017e\u0161\u00ed.<\/p>\n

    Pokud jste v interi\u00e9ru, v such\u00e9m nebo kontrolovan\u00e9m prost\u0159ed\u00ed, nerezov\u00e1 ocel je obvykle v po\u0159\u00e1dku a m\u016f\u017ee nab\u00eddnout v\u011bt\u0161\u00ed odolnost proti po\u0161kr\u00e1b\u00e1n\u00ed.<\/p>\n

    <\/svg> Hlin\u00edk je p\u0159irozen\u011b odoln\u00fd proti korozi.<\/b>Pravda<\/span><\/p>

    Hlin\u00edk vytv\u00e1\u0159\u00ed na vzduchu ochrannou vrstvu oxidu, d\u00edky n\u00ed\u017e je vysoce odoln\u00fd proti korozi.<\/p><\/div>\n

    <\/svg> V\u0161echny nerezov\u00e9 oceli odol\u00e1vaj\u00ed korozi stejn\u011b.<\/b>False<\/span><\/p>

    R\u016fzn\u00e9 druhy nerezov\u00e9 oceli maj\u00ed r\u016fznou \u00farove\u0148 odolnosti proti korozi. Nap\u0159\u00edklad 316 je odoln\u011bj\u0161\u00ed ne\u017e 304.<\/p><\/div>\n

    Kdy se m\u00e1 m\u00edsto nerezov\u00e9 oceli pou\u017e\u00edt hlin\u00edk?<\/h2>\n

    N\u011bkdy je volba hlin\u00edku m\u00edsto nerezov\u00e9 oceli levn\u011bj\u0161\u00ed, rychlej\u0161\u00ed a lep\u0161\u00ed. Ale kdy to tak je?<\/p>\n

    Hlin\u00edk pou\u017eijte, pokud pot\u0159ebujete n\u011bco lehk\u00e9ho, odoln\u00e9ho proti korozi a snadno opracovateln\u00e9ho. Nejl\u00e9pe se osv\u011bd\u010duje v leteck\u00e9m, automobilov\u00e9m a lodn\u00edm pr\u016fmyslu, kde z\u00e1le\u017e\u00ed na hmotnosti.<\/strong><\/p>\n

    \"Hlin\u00edk
    Vlastn\u00ed hlin\u00edkov\u00e9 trubky pro lehkou p\u0159epravu a tepeln\u00fd management<\/figcaption><\/figure>\n<\/p>\n

    Zde jsou ide\u00e1ln\u00ed p\u0159\u00edpady pro hlin\u00edk:<\/h3>\n
      \n
    • Doprava<\/strong>: Men\u0161\u00ed hmotnost znamen\u00e1 m\u00e9n\u011b paliva.<\/li>\n
    • Stavebnictv\u00ed<\/strong>: Skv\u011ble se hod\u00ed na okenn\u00ed r\u00e1my a fas\u00e1dy.<\/li>\n
    • Elektronika<\/strong>: Lep\u0161\u00ed odvod tepla.<\/li>\n
    • Obaly na potraviny<\/strong>: Netoxick\u00e9 a nerezav\u011bj\u00edc\u00ed.<\/li>\n<\/ul>\n

      Je tak\u00e9 mnohem snaz\u0161\u00ed \u0159ezat, vrtat, sva\u0159ovat a tvarovat. To \u0161et\u0159\u00ed \u010das a pen\u00edze p\u0159i v\u00fdrob\u011b.<\/p>\n

      N\u00e1klady a efektivita<\/h3>\n

      Hlin\u00edk je obvykle levn\u011bj\u0161\u00ed, zejm\u00e9na pokud se zohledn\u00ed n\u00e1klady na zpracov\u00e1n\u00ed. Jeho snadn\u011bj\u0161\u00ed obrobitelnost znamen\u00e1 ni\u017e\u0161\u00ed pracnost a opot\u0159eben\u00ed n\u00e1stroj\u016f. To z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro velkoobjemov\u00e9 nebo finan\u010dn\u011b n\u00e1ro\u010dn\u00e9 zak\u00e1zky.<\/p>\n

      V\u017edy si v\u0161ak p\u0159ekontrolujte po\u017eadavky na s\u00edlu a teplo. Pokud mus\u00ed v\u00fdrobek un\u00e9st velk\u00e9 zat\u00ed\u017een\u00ed nebo vydr\u017eet vysok\u00e9 teploty, m\u016f\u017ee b\u00fdt nerezov\u00e1 ocel st\u00e1le tou spr\u00e1vnou volbou.<\/p>\n

      <\/svg> Hlin\u00edk se opracov\u00e1v\u00e1 a zpracov\u00e1v\u00e1 snadn\u011bji ne\u017e nerezov\u00e1 ocel.<\/b>Pravda<\/span><\/p>

      Hlin\u00edk je m\u011bk\u010d\u00ed a ve srovn\u00e1n\u00ed s nerezovou ocel\u00ed vy\u017eaduje m\u00e9n\u011b energie a opot\u0159eben\u00ed n\u00e1stroje p\u0159i obr\u00e1b\u011bn\u00ed.<\/p><\/div>\n

      <\/svg> Nerezov\u00e1 ocel je v\u017edy levn\u011bj\u0161\u00ed ne\u017e hlin\u00edk.<\/b>False<\/span><\/p>

      Hlin\u00edk je \u010dasto cenov\u011b v\u00fdhodn\u011bj\u0161\u00ed d\u00edky ni\u017e\u0161\u00edm n\u00e1klad\u016fm na materi\u00e1l a zpracov\u00e1n\u00ed.<\/p><\/div>\n

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

      Hlin\u00edk a nerezov\u00e1 ocel pln\u00ed r\u016fzn\u00e9 funkce. Hlin\u00edk je lehk\u00fd a snadno se tvaruje, zat\u00edmco nerezov\u00e1 ocel je pevn\u00e1 a hou\u017eevnat\u00e1. V\u00fdb\u011br toho spr\u00e1vn\u00e9ho z\u00e1vis\u00ed na hmotnosti, pevnosti a pot\u0159eb\u00e1ch va\u0161eho \u00fakolu a prost\u0159ed\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"

      Aluminum profile ideal for lightweight and conductive structural use Most people confuse aluminum and stainless steel. They look similar. But choosing the wrong one could cost your business time, money, and even product failure. Stainless steel is stronger and heavier, while aluminum is lighter and more corrosion-resistant. The right choice depends on your project\u2019s need […]<\/p>\n","protected":false},"author":6,"featured_media":5835,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-9927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/9927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=9927"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/9927\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/5835"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=9927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=9927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=9927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}