{"id":19346,"date":"2026-10-06T08:02:01","date_gmt":"2026-10-06T08:02:01","guid":{"rendered":"https:\/\/tuohaihardware.com\/?p=19346"},"modified":"2026-10-06T08:02:01","modified_gmt":"2026-10-06T08:02:01","slug":"jakosti-nerezove-oceli","status":"publish","type":"post","link":"https:\/\/tuohaihardware.com\/cs\/grades-of-stainless-steel\/","title":{"rendered":"Druhy nerezov\u00e9 oceli: 304, 316 a dal\u0161\u00ed b\u011b\u017en\u00e9 typy"},"content":{"rendered":"

Pokud kupujete nerezov\u00e9 \u0159et\u011bzy<\/a> nebo hardware, \u201cnerezov\u00e1 ocel\u201d sama o sob\u011b nen\u00ed kompletn\u00ed specifikac\u00ed materi\u00e1lu. Sou\u010d\u00e1st, kter\u00e1 dob\u0159e funguje v interi\u00e9ru, se m\u016f\u017ee za\u0161pinit nebo zbarvit do d\u016flk\u016f v m\u00edst\u011b hromad\u011bn\u00ed soli. Tvrd\u0161\u00ed t\u0159\u00edda m\u016f\u017ee b\u00fdt tak\u00e9 m\u00e9n\u011b vhodn\u00e1 pro tv\u00e1\u0159en\u00ed nebo sva\u0159ov\u00e1n\u00ed, kter\u00e9 v\u00e1\u0161 produkt pot\u0159ebuje. Ne\u017e porovn\u00e1te nab\u00eddky nebo schv\u00e1l\u00edte vzorek, mus\u00edte v\u011bd\u011bt, co dan\u00e1 t\u0159\u00edda znamen\u00e1.<\/p>\n

Tato p\u0159\u00edru\u010dka vysv\u011btluje hlavn\u00ed jakosti nerezov\u00e9 oceli, kde se li\u0161\u00ed oceli 304 a 316 a co je t\u0159eba zkontrolovat p\u0159ed objedn\u00e1n\u00edm.<\/p>\n

\"detail<\/p>\n

Co v\u00e1m prozrad\u00ed druh nerezov\u00e9 oceli?<\/h2>\n

Druhy nerezov\u00e9 oceli identifikuj\u00ed definovan\u00e9 rozsahy chemick\u00e9ho slo\u017een\u00ed a v mnoha p\u0159\u00edpadech i skupiny ocel\u00ed. Chrom pom\u00e1h\u00e1 povrchu vytv\u00e1\u0159et tenkou ochrannou vrstvu. Dal\u0161\u00ed prvky, jako je nikl, molybden a mangan, m\u011bn\u00ed chov\u00e1n\u00ed oceli. N\u00e1zvy jakost\u00ed, jako nap\u0159\u00edklad 304 a 316, v\u00e1m pomohou specifikovat materi\u00e1l, ale nepopisuj\u00ed v\u0161echny vlastnosti hotov\u00e9ho d\u00edlu. Worldstainless vysv\u011btluje skupiny jakost\u00ed a tvary v\u00fdrobk\u016f.<\/p>\n

Tento rozd\u00edl je d\u016fle\u017eit\u00fd p\u0159i n\u00e1kupu \u0159et\u011bzu. Nerezov\u00e1 ocel 304 je druh materi\u00e1lu; druh \u0159et\u011bzu nebo nosnost popisuje hotov\u00fd \u0159et\u011bz pro definovan\u00e9 pou\u017eit\u00ed.<\/strong> Samotn\u00fd n\u00e1zev materi\u00e1lu nestanov\u00ed limit nosnosti. D\u016fle\u017eit\u00e1 je tak\u00e9 velikost \u010dl\u00e1nku, konstrukce, v\u00fdroba, testov\u00e1n\u00ed a p\u0159\u00edslu\u0161n\u00e1 norma produktu. Pokud bude \u0159et\u011bz n\u00e9st zat\u00ed\u017een\u00ed, zeptejte se samostatn\u011b na po\u017eadavky na hotov\u00fd v\u00fdrobek.<\/p>\n

Jak\u00e9 jsou hlavn\u00ed typy nerezov\u00e9 oceli?<\/h2>\n

Nerezov\u00e9 oceli spadaj\u00ed do p\u011bti hlavn\u00edch skupin. Jejich struktura ovliv\u0148uje odolnost proti korozi, pevnost, tv\u00e1\u0159en\u00ed a tepeln\u00e9 zpracov\u00e1n\u00ed. Skupina v\u00e1m \u0159ekne, kde za\u010d\u00edt; p\u0159esn\u00e1 jakost a stav v\u00fdrobku ur\u010duj\u00ed, zda je sou\u010d\u00e1st vhodn\u00e1 pro va\u0161e pou\u017eit\u00ed. Pr\u016fvodce jakostmi Britsk\u00e9 asociace pro nerezovou ocel (BSSA) pokr\u00fdv\u00e1 \u0161ir\u0161\u00ed rozsah ne\u017e b\u011b\u017en\u00e9 p\u0159\u00edklady uveden\u00e9 n\u00ed\u017ee.<\/p>\n\n\n\n\n\n\n\n\n\n
Rodina<\/th>\nB\u011b\u017en\u00e9 stupn\u011b<\/th>\nHlavn\u00ed bod pro kupuj\u00edc\u00edho hardwaru<\/th>\n<\/tr>\n<\/thead>\n
Austenitick\u00fd<\/td>\n201, 304, 304L, 316, 316L<\/td>\n\u010casto se vol\u00ed pro tv\u00e1\u0159en\u00e9 nebo sva\u0159ovan\u00e9 d\u00edly. Zkontrolujte p\u0159esnou jakost s ohledem na provozn\u00ed prost\u0159ed\u00ed a pot\u0159eby tv\u00e1\u0159en\u00ed.<\/td>\n<\/tr>\n
Feritov\u00e9<\/td>\n430<\/td>\nMagnetick\u00e1 t\u0159\u00edda pou\u017e\u00edvan\u00e1 v n\u011bkter\u00fdch m\u00edrn\u00fdch prost\u0159ed\u00edch. Nep\u0159edpokl\u00e1dejte, \u017ee dok\u00e1\u017ee nahradit nerez 304 ve v\u0161ech sou\u010d\u00e1stk\u00e1ch.<\/td>\n<\/tr>\n
Martenzitick\u00fd<\/td>\n410<\/td>\nLze ztvrdit tepeln\u00fdm zpracov\u00e1n\u00edm. Je u\u017eite\u010dn\u00fd, kdy\u017e je d\u016fle\u017eit\u00e1 tvrdost, ale jeho korozn\u00ed n\u00e1roky se li\u0161\u00ed od po\u017eadavk\u016f oceli 304 nebo 316.<\/td>\n<\/tr>\n
Duplex<\/td>\n2205<\/td>\nKombinuje pevnost s dobrou odolnost\u00ed v\u016f\u010di po\u0161kozen\u00ed zp\u016fsoben\u00e9mu chloridy. Vy\u017eaduje vhodn\u00fd n\u00e1vrh produktu a v\u00fdrobn\u00ed proces.<\/td>\n<\/tr>\n
sr\u00e1\u017eec\u00edm kalen\u00edm<\/td>\n17-4 PH<\/td>\nPo specifikovan\u00e9m tepeln\u00e9m zpracov\u00e1n\u00ed m\u016f\u017ee dos\u00e1hnout vysok\u00e9 pevnosti. Po\u017eadovan\u00fd stav mus\u00ed b\u00fdt uveden u jakosti.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Toto jsou p\u0159\u00edklady, ne jedno se\u0159azen\u00ed od \u201cnejhor\u0161\u00edho\u201d po \u201cnejlep\u0161\u00ed\u201d. D\u00edl oblo\u017een\u00ed 430, opot\u0159ebiteln\u00fd d\u00edl 410 a 316 \u0159et\u011bz<\/a> mohou m\u00edt r\u016fzn\u00e9 \u00fakoly. Samotn\u00e1 jakost v\u00e1m nem\u016f\u017ee \u0159\u00edct, kter\u00fd hotov\u00fd v\u00fdrobek vydr\u017e\u00ed d\u00e9le. Pokyny pro v\u00fdb\u011br BSSA pova\u017euj\u00ed prost\u0159ed\u00ed, mechanick\u00e9 po\u017eadavky a v\u00fdrobu za souvisej\u00edc\u00ed rozhodnut\u00ed.<\/p>\n

Kam se hod\u00ed 201?<\/h3>\n

201 je austenitick\u00e1 t\u0159\u00edda, kter\u00e1 obsahuje v\u00edce manganu a m\u00e9n\u011b niklu ne\u017e 304. N\u011bkdy se zva\u017euje, pokud to dovoluj\u00ed specifikace materi\u00e1lu a po\u017eadavky na tv\u00e1\u0159en\u00ed. Je to nen\u00ed automatickou n\u00e1hradou<\/strong> pro 304: ob\u011b jakosti se mohou b\u011bhem tv\u00e1\u0159en\u00ed chovat odli\u0161n\u011b a schv\u00e1len\u00e9 slo\u017een\u00ed mus\u00ed st\u00e1le odpov\u00eddat objedn\u00e1vce. BSSA popisuje 201 a jej\u00ed limity.<\/p>\n

\"\u0159et\u011bz<\/p>\n

Jak se li\u0161\u00ed 304 a 316?<\/h2>\n

Pro mnoho kupuj\u00edc\u00edch je neju\u017eite\u010dn\u011bj\u0161\u00edm srovn\u00e1n\u00edm nerezov\u00e1 ocel 304 a 316. Ob\u011b jsou austenitick\u00e9 jakosti. 316 obsahuje molybden, kter\u00fd zlep\u0161uje odolnost proti lok\u00e1ln\u00ed korozi zp\u016fsoben\u00e9 chloridy ve srovn\u00e1n\u00ed s 304 za srovnateln\u00fdch podm\u00ednek.<\/strong> D\u00edky tomu stoj\u00ed za zv\u00e1\u017een\u00ed ocel 316, pokud je sou\u010d\u00e1stka vystavena pob\u0159e\u017en\u00edmu vzduchu, usazenin\u00e1m soli nebo n\u011bkter\u00fdm \u010distic\u00edm chemik\u00e1li\u00edm. BSSA vysv\u011btluje rozd\u00edl v korozi.<\/p>\n

Pro such\u00e9 vnit\u0159n\u00ed armatury nebo chr\u00e1n\u011bn\u00e9 sou\u010d\u00e1sti s n\u00edzkou expozic\u00ed chlorid\u016fm m\u016f\u017ee ocel 304 spl\u0148ovat po\u017eadavky, ani\u017e byste museli platit za legovan\u011bj\u0161\u00ed t\u0159\u00eddu. U exponovan\u00e9ho \u0159et\u011bzu, h\u00e1ku nebo spojky v bl\u00edzkosti soln\u00e9 mlhy za\u010dn\u011bte posouzen\u00edm oceli 316 a skute\u010dn\u00e9 expozice. Pokud sou\u010d\u00e1st z\u016fst\u00e1v\u00e1 v mo\u0159sk\u00e9 vod\u011b, zadr\u017euje stojatou slanou vodu nebo m\u00e1 t\u011bsn\u00e9 mezery, kter\u00e9 zachycuj\u00ed usazeniny, nepova\u017eujte \u201c316\u201d nebo \u201cn\u00e1mo\u0159n\u00ed t\u0159\u00eddu\u201d za z\u00e1ruku. Konstrukce sou\u010d\u00e1sti, stav povrchu, teplota, \u010di\u0161t\u011bn\u00ed a p\u0159esn\u00e9 provozn\u00ed podm\u00ednky je st\u00e1le t\u0159eba zkontrolovat. N\u00e1ro\u010dn\u011bj\u0161\u00ed prost\u0159ed\u00ed mohou vy\u017eadovat jinou t\u0159\u00eddu nebo jin\u00e9 proveden\u00ed.<\/p>\n

\u201cL\u201d ve znac\u00edch ocel\u00ed 304L a 316L znamen\u00e1 ni\u017e\u0161\u00ed obsah uhl\u00edku. Pom\u00e1h\u00e1 to hlavn\u011b kontrolovat riziko mezikrystalov\u00e9 koroze po ur\u010dit\u00fdch tepeln\u00fdch cyklech sva\u0159ov\u00e1n\u00ed. ne<\/strong> znamen\u00e1, \u017ee ocel 316L je v\u017edy pevn\u011bj\u0161\u00ed ne\u017e 316 nebo \u017ee ocel t\u0159\u00eddy L nem\u016f\u017ee korodovat. N\u011bkter\u00e9 materi\u00e1ly jsou certifikov\u00e1ny jak pro standardn\u00ed, tak pro ozna\u010den\u00ed L, pokud spl\u0148uj\u00ed ob\u011b sady po\u017eadavk\u016f. BSSA vysv\u011btluje slo\u017een\u00ed a dvoj\u00ed certifikaci ocel\u00ed t\u0159\u00edd L.<\/p>\n

\"S-h\u00e1\u010dky<\/p>\n

Jak byste si m\u011bli vybrat jakost hardwaru?<\/h2>\n

Vyberte si jakost podle typu pr\u00e1ce a expozice d\u00edlu a pot\u00e9 zkontrolujte, zda jej lze vyrobit a ov\u011b\u0159it dle specifikace. Tato objedn\u00e1vka v\u00e1m zabr\u00e1n\u00ed platit za slitinu, kter\u00e1 ne\u0159e\u0161\u00ed skute\u010dn\u00fd probl\u00e9m.<\/p>\n

    \n
  1. Popi\u0161te prost\u0159ed\u00ed.<\/strong> Uve\u010fte, zda se sou\u010d\u00e1st nach\u00e1z\u00ed uvnit\u0159, venku, v bl\u00edzkosti pob\u0159e\u017e\u00ed, ve stojat\u00e9 vod\u011b nebo v kontaktu s \u010distic\u00edmi prost\u0159edky \u010di chemik\u00e1liemi. V\u0161imn\u011bte si, kde se na sou\u010d\u00e1sti m\u016f\u017ee usazovat s\u016fl nebo vlhkost. To je \u010dasto prvn\u00ed faktor, kter\u00fd ovliv\u0148uje v\u00fdb\u011br mezi ocel\u00ed 304 a 316.<\/li>\n
  2. Definujte sou\u010d\u00e1stku a jak je vyrobena.<\/strong> Tvarovan\u00fd \u010dl\u00e1nek, sva\u0159ovan\u00fd \u0159et\u011bz, pru\u017eina, spojovac\u00ed prvek a obr\u00e1b\u011bn\u00fd konektor nesd\u00edlej\u00ed stejn\u00e9 v\u00fdrobn\u00ed po\u017eadavky. Ov\u011b\u0159te pot\u0159ebnou pevnost, tvrdost, tv\u00e1\u0159en\u00ed, sva\u0159ov\u00e1n\u00ed a povrchovou \u00fapravu. Jakost, kter\u00e1 vyhovuje jednomu tvaru v\u00fdrobku, m\u016f\u017ee b\u00fdt \u0161patnou volbou pro jin\u00fd.<\/li>\n
  3. Uve\u010fte po\u017eadavky na jakost a produkt samostatn\u011b.<\/strong> Uve\u010fte jakost, p\u0159\u00edslu\u0161nou materi\u00e1lovou specifikaci pro skute\u010dn\u00fd tvar v\u00fdrobku, rozm\u011bry, povrchovou \u00fapravu a ve\u0161ker\u00e9 pot\u0159ebn\u00e9 testy nebo kontroly. U nosn\u00e9ho \u0159et\u011bzu nebo bezpe\u010dnostn\u00edho d\u00edlu se dohodn\u011bte tak\u00e9 na hodnocen\u00ed hotov\u00e9ho v\u00fdrobku a p\u0159\u00edslu\u0161n\u00e9 norm\u011b. Neodvozujte ani jedno z nich z \u201cnerezov\u00e9 oceli\u201d.\u201d<\/li>\n
  4. Porovnejte celou objedn\u00e1vku.<\/strong> Zkontrolujte materi\u00e1l, zpracov\u00e1n\u00ed, povrchovou \u00fapravu, pot\u0159eby \u00fadr\u017eby a doklady dodan\u00e9 s \u0161ar\u017e\u00ed. Vy\u0161\u0161\u00ed cena slitiny m\u016f\u017ee b\u00fdt ospravedlniteln\u00e1, pokud \u0159e\u0161\u00ed skute\u010dn\u00e9 riziko expozice; p\u0159id\u00e1v\u00e1 malou hodnotu, pokud je omezuj\u00edc\u00edm probl\u00e9mem \u0161patn\u00fd n\u00e1vrh nebo neov\u011b\u0159en\u00fd hotov\u00fd v\u00fdrobek.<\/li>\n<\/ol>\n

    Pokud v\u00e1\u0161 n\u00e1vrh zahrnuje siln\u00e9 chemik\u00e1lie, vysok\u00e9 teploty, dlouhodob\u00fd kontakt s mo\u0159skou vodou nebo zat\u00ed\u017een\u00ed kritick\u00e9 z hlediska bezpe\u010dnosti, nechte si p\u0159ed schv\u00e1len\u00edm stupn\u011b odolnosti materi\u00e1lu odpov\u011bdn\u00fdm in\u017een\u00fdrem posoudit skute\u010dn\u00e9 podm\u00ednky a p\u0159\u00edslu\u0161n\u00e9 normy. Stru\u010dn\u00fd graf stupn\u011b odolnosti materi\u00e1lu nem\u016f\u017ee toto posouzen\u00ed nahradit.<\/p>\n

    Jak si m\u016f\u017eete ov\u011b\u0159it zn\u00e1mku v objedn\u00e1vce?<\/h2>\n

    Zapi\u0161te po\u017eadovan\u00fd stupe\u0148 do v\u00fdkresu nebo specifikace n\u00e1kupu. Ur\u010dete tvar v\u00fdrobku a normu, kter\u00e1 se na n\u011bj vztahuje. Nap\u0159\u00edklad ASTM A240\/A240M zahrnuje nerezovou ocel. deska, plech a p\u00e1s<\/strong>; nejedn\u00e1 se o v\u0161eobecnou normu pro ka\u017ed\u00fd nerezov\u00fd dr\u00e1t nebo hotov\u00fd \u0159et\u011bz. ASTM uv\u00e1d\u00ed tento rozsah ve sv\u00e9m aktu\u00e1ln\u00edm seznamu A240\/A240M-26. Norma ISO 15510:2014 uv\u00e1d\u00ed slo\u017een\u00ed nerezov\u00e9 oceli, ale samotn\u00e9 slo\u017een\u00ed nehodnot\u00ed hotov\u00fd kovac\u00ed prvek.<\/p>\n

    Zeptejte se, kter\u00fd certifik\u00e1t materi\u00e1lu nebo z\u00e1znam o slo\u017een\u00ed bude k objedn\u00e1vce p\u0159ilo\u017een a jak se \u010d\u00edslo tavby nebo \u0161ar\u017ee vztahuje k dodan\u00fdm d\u00edl\u016fm. Pokud aplikace vy\u017eaduje nez\u00e1visl\u00e9 potvrzen\u00ed, dohodn\u011bte se p\u0159ed v\u00fdrobou na metod\u011b odb\u011bru vzork\u016f a anal\u00fdzy. Zkontrolujte rozm\u011bry, povrchovou \u00fapravu a ve\u0161ker\u00e9 zkou\u0161ky hotov\u00e9ho v\u00fdrobku podle vlastn\u00edch po\u017eadavk\u016f. Certifik\u00e1t materi\u00e1lu pro jednu \u0161ar\u017ei nebo velikost nedokazuje, \u017ee ka\u017ed\u00e1 polo\u017eka ve sm\u00ed\u0161en\u00e9 z\u00e1silce m\u00e1 stejnou jakost nebo v\u00fdkon.<\/p>\n

    Vzhled a ru\u010dn\u00ed magnet nejsou dostate\u010dnou kone\u010dnou kontrolou. Le\u0161t\u011bn\u00e9 jakosti mohou vypadat podobn\u011b a za studena tv\u00e1\u0159en\u00e1 ocel 304 m\u016f\u017ee vykazovat ur\u010ditou magnetickou p\u0159ita\u017elivost. BSSA vysv\u011btluje, pro\u010d m\u016f\u017ee tv\u00e1\u0159en\u00ed za studena zm\u011bnit magnetickou odezvu austenitick\u00e9 oceli. Pokud je t\u0159eba potvrdit jakost, pou\u017eijte dokumenty v\u00e1zan\u00e9 na \u0161ar\u017ei a vhodnou anal\u00fdzu materi\u00e1lu.<\/p>\n

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

    Znamen\u00e1 \u201c18\/8\u201d v\u017edy nerezovou ocel 304?<\/h3>\n

    Ne jako d\u016fkaz materi\u00e1lu ve va\u0161\u00ed objedn\u00e1vce. \u201c18\/8\u201d popisuje p\u0159ibli\u017enou sm\u011bs chromu a niklu a podle BSSA se \u010dasto pou\u017e\u00edv\u00e1 pro nerez 304 v p\u0159\u00edborech. Samotn\u00fd katalog nebo \u0161t\u00edtek na obalu neidentifikuje p\u0159esnou normu ani dodanou \u0161ar\u017ei. V p\u0159\u00edpad\u011b objedn\u00e1vky hardwaru si vy\u017e\u00e1dejte uvedenou jakost, p\u0159\u00edslu\u0161nou normu a z\u00e1znam o materi\u00e1lu propojen\u00fd s danou \u0161ar\u017e\u00ed.<\/p>\n

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

    Za\u010dn\u011bte s prost\u0159ed\u00edm a \u00fa\u010delem d\u00edlu. Pot\u00e9 specifikujte jakost nerezov\u00e9 oceli, tvar v\u00fdrobku a po\u017eadavky na hotov\u00fd d\u00edl. Pro mnoho obecn\u00fdch hardwarov\u00fdch pou\u017eit\u00ed je 304 praktick\u00fdm v\u00fdchoz\u00edm bodem; vystaven\u00ed chlorid\u016fm m\u016f\u017ee zv\u00fd\u0161it hodnotu 316. Jin\u00e9 jakosti \u0159e\u0161\u00ed jin\u00e9 pot\u0159eby. Ne\u017e schv\u00e1l\u00edte objedn\u00e1vku, ujist\u011bte se, \u017ee z\u00e1znam o materi\u00e1lu odpov\u00edd\u00e1 dodan\u00e9 d\u00e1vce a \u017ee hotov\u00fd d\u00edl spl\u0148uje jej\u00ed vlastn\u00ed specifikaci.<\/p>","protected":false},"excerpt":{"rendered":"

    If you are buying stainless steel chains or hardware, \u201cstainless steel\u201d alone is not a complete material specification. A part that works well indoors may […]<\/p>\n","protected":false},"author":1,"featured_media":19393,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-19346","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"\nGrades of Stainless Steel: 304, 316 and Common Types<\/title>\n<meta name=\"description\" content=\"Compare grades of stainless steel, including 304 and 316. 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