{"id":4004,"date":"2024-06-29T15:08:45","date_gmt":"2024-06-29T15:08:45","guid":{"rendered":"https:\/\/machining-quote.com\/?p=4004"},"modified":"2024-07-09T09:33:06","modified_gmt":"2024-07-09T09:33:06","slug":"304-vs-420-stainless-steel","status":"publish","type":"post","link":"https:\/\/machining-quote.com\/cs\/bolg\/304-vs-420-stainless-steel\/","title":{"rendered":"Jak\u00fd je rozd\u00edl mezi nerezovou ocel\u00ed 304 a 420"},"content":{"rendered":"<h4>Obsah<\/h4>\n<ul>\n<li><a href=\"#equivalents\">Jak\u00e9 jsou ekvivalenty nerezov\u00e9 oceli 304 a 420?<\/a><\/li>\n<li><a href=\"#comparison\">SS420 a SS304: Co je lep\u0161\u00ed?<\/a><\/li>\n<li><a href=\"#pros-cons\">V\u00fdhody a nev\u00fdhody pou\u017eit\u00ed nerezov\u00e9 oceli 304 vs 420<\/a><\/li>\n<li><a href=\"#corrosion-resistance\">Odolnost proti korozi 420 vs 304 z nerezov\u00e9 oceli<\/a><\/li>\n<li><a href=\"#knife\">N\u016f\u017e z nerezov\u00e9 oceli 304 vs 420<\/a><\/li>\n<li><a href=\"#chemical-composition\">Chemick\u00e9 slo\u017een\u00ed AISI 420 vs 304<\/a><\/li>\n<li><a href=\"#heat-resistance\">Tepeln\u00e1 odolnost: Anal\u00fdza nerezov\u00e9 oceli 420 vs 304<\/a><\/li>\n<li><a href=\"#machinability\">Obrobitelnost nerezov\u00e9 oceli 420 ve srovn\u00e1n\u00ed s nerezovou ocel\u00ed 304<\/a><\/li>\n<li><a href=\"#heat-treatment\">Procesy tepeln\u00e9ho zpracov\u00e1n\u00ed pro nerezovou ocel 420 a 304<\/a><\/li>\n<li><a href=\"#summary\">Souhrnn\u00e1 tabulka, jak\u00fd je rozd\u00edl mezi nerezovou ocel\u00ed 304 a 420<\/a><\/li>\n<li><a href=\"#conclusion\">Z\u00e1v\u011br<\/a><\/li>\n<\/ul>\n<p>\u201eOd kuchyn\u00ed k p\u0159\u00edbor\u016fm: Zkoum\u00e1n\u00ed v\u0161estrannosti nerezov\u00e9 oceli 304 a tvrdosti 420\u201c<\/p>\n<p>Nerezov\u00e9 oceli 304 a 420 jsou \u0161iroce pou\u017e\u00edv\u00e1ny kv\u016fli jejich odolnosti proti korozi a pevnosti. Prim\u00e1rn\u00ed rozd\u00edl mezi nimi spo\u010d\u00edv\u00e1 v jejich chemick\u00e9m slo\u017een\u00ed a mechanick\u00fdch vlastnostech, kter\u00e9 ur\u010duj\u00ed jejich specifick\u00e9 pou\u017eit\u00ed v pr\u016fmyslu. Nerezov\u00e1 ocel 304, sou\u010d\u00e1st austenitick\u00e9 rodiny, je vysoce odoln\u00e1 proti korozi a v\u0161estrann\u00e1, p\u0159edev\u0161\u00edm d\u00edky vysok\u00e9mu obsahu chromu a niklu. Nerezov\u00e1 ocel 420, martenzitick\u00e1 slitina, obsahuje vy\u0161\u0161\u00ed obsah uhl\u00edku, nab\u00edz\u00ed vy\u0161\u0161\u00ed tvrdost a pevnost, ale men\u0161\u00ed odolnost proti korozi ve srovn\u00e1n\u00ed s ocel\u00ed 304.<\/p>\n<h2 id=\"equivalents\">Jak\u00e9 jsou ekvivalenty nerezov\u00e9 oceli 304 a 420?<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Standard<\/th>\n<th>304 Nerezov\u00e1 ocel<\/th>\n<th>420 Nerezov\u00e1 ocel<\/th>\n<\/tr>\n<tr>\n<td>EN<\/td>\n<td>1.4301<\/td>\n<td>1.4021<\/td>\n<\/tr>\n<tr>\n<td>ISO<\/td>\n<td>4301<\/td>\n<td>4021<\/td>\n<\/tr>\n<tr>\n<td>\u010d\u00edn\u0161tina<\/td>\n<td>06Cr19Ni10<\/td>\n<td>2Cr13<\/td>\n<\/tr>\n<tr>\n<td>japonsk\u00fd<\/td>\n<td>SUS304<\/td>\n<td>SUS420J1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"comparison\">SS420 a SS304: Co je lep\u0161\u00ed?<\/h2>\n<ul>\n<li><strong>304 Nerezov\u00e1 ocel:<\/strong> Nejlep\u0161\u00ed pro odolnost proti korozi a tvarovatelnost.<\/li>\n<li><strong>420 Nerezov\u00e1 ocel:<\/strong> Nejlep\u0161\u00ed pro tvrdost a zachov\u00e1n\u00ed hran.<\/li>\n<\/ul>\n<h2 id=\"pros-cons\">V\u00fdhody a nev\u00fdhody pou\u017eit\u00ed nerezov\u00e9 oceli 304 vs 420<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Aspekt<\/th>\n<th>304 Nerezov\u00e1 ocel<\/th>\n<th>420 Nerezov\u00e1 ocel<\/th>\n<\/tr>\n<tr>\n<td>Odolnost proti korozi<\/td>\n<td>Vysok\u00e1<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Tvrdost<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Tvarovatelnost<\/td>\n<td>Vynikaj\u00edc\u00ed<\/td>\n<td>\u0160patn\u00fd<\/td>\n<\/tr>\n<tr>\n<td>Sva\u0159itelnost<\/td>\n<td>Vynikaj\u00edc\u00ed<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"corrosion-resistance\">Odolnost proti korozi 420 vs 304 z nerezov\u00e9 oceli<\/h2>\n<ul>\n<li><strong>304 Nerezov\u00e1 ocel:<\/strong> Velmi odoln\u00fd v\u016f\u010di korozi a oxidaci. Vhodn\u00e9 do vlhk\u00e9ho a slan\u00e9ho prost\u0159ed\u00ed.<\/li>\n<li><strong>420 Nerezov\u00e1 ocel:<\/strong> M\u00e9n\u011b odoln\u00fd v\u016f\u010di rzi. Lep\u0161\u00ed v such\u00e9m prost\u0159ed\u00ed.<\/li>\n<\/ul>\n<h2 id=\"knife\">N\u016f\u017e z nerezov\u00e9 oceli 304 vs 420<\/h2>\n<ul>\n<li><strong>304 Nerezov\u00e1 ocel:<\/strong> Dobr\u00e9 pro kuchy\u0148sk\u00e9 no\u017ee, kter\u00e9 pot\u0159ebuj\u00ed odol\u00e1vat korozi.<\/li>\n<li><strong>420 Nerezov\u00e1 ocel:<\/strong> Lep\u0161\u00ed pro \u010depele, kter\u00e9 pot\u0159ebuj\u00ed z\u016fstat ostr\u00e9, jako jsou chirurgick\u00e9 n\u00e1stroje a p\u0159\u00edbory.<\/li>\n<\/ul>\n<h2 id=\"chemical-composition\">Chemick\u00e9 slo\u017een\u00ed AISI 420 vs 304<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Prvek<\/th>\n<th>304 Nerezov\u00e1 ocel<\/th>\n<th>420 Nerezov\u00e1 ocel<\/th>\n<\/tr>\n<tr>\n<td>Chrom<\/td>\n<td>18-20%<\/td>\n<td>12-14%<\/td>\n<\/tr>\n<tr>\n<td>Nikl<\/td>\n<td>8-10.5%<\/td>\n<td>\u017d\u00e1dn\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Uhl\u00edk<\/td>\n<td>Max 0,081 TP3T<\/td>\n<td>0.15-0.40%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"heat-resistance\">Tepeln\u00e1 odolnost: Anal\u00fdza nerezov\u00e9 oceli 420 vs 304<\/h2>\n<ul>\n<li><strong>304 Nerezov\u00e1 ocel:<\/strong> P\u0159i nep\u0159etr\u017eit\u00e9m pou\u017e\u00edv\u00e1n\u00ed vydr\u017e\u00ed a\u017e 870 \u00b0C. Dobr\u00e9 pro vysokoteplotn\u00ed aplikace.<\/li>\n<li><strong>420 Nerezov\u00e1 ocel:<\/strong> Vydr\u017e\u00ed a\u017e 650\u00b0C. Lep\u0161\u00ed pro aplikace vy\u017eaduj\u00edc\u00ed vysokou tvrdost.<\/li>\n<\/ul>\n<h2 id=\"machinability\">Obrobitelnost nerezov\u00e9 oceli 420 ve srovn\u00e1n\u00ed s nerezovou ocel\u00ed 304<\/h2>\n<ul>\n<li><strong>304 Nerezov\u00e1 ocel:<\/strong> Jednodu\u0161\u0161\u00ed stroj. M\u00e1 tendenci pracovat tvrdnout.<\/li>\n<li><strong>420 Nerezov\u00e1 ocel:<\/strong> Kv\u016fli vysok\u00e9 tvrdosti se h\u016f\u0159e obr\u00e1b\u00ed. Vy\u017eaduje ni\u017e\u0161\u00ed rychlosti a robustn\u011bj\u0161\u00ed n\u00e1stroje.<\/li>\n<\/ul>\n<h2 id=\"heat-treatment\">Procesy tepeln\u00e9ho zpracov\u00e1n\u00ed pro nerezovou ocel 420 a 304<\/h2>\n<ul>\n<li><strong>304 Nerezov\u00e1 ocel:<\/strong> Nelze vytvrdit tepeln\u00fdm zpracov\u00e1n\u00edm. Vytvrzeno tv\u00e1\u0159en\u00edm za studena.<\/li>\n<li><strong>420 Nerezov\u00e1 ocel:<\/strong> Lze vytvrdit zah\u0159\u00e1t\u00edm na 950-1050\u00b0C a pot\u00e9 kalit.<\/li>\n<\/ul>\n<h2 id=\"summary\">Souhrnn\u00e1 tabulka, jak\u00fd je rozd\u00edl mezi nerezovou ocel\u00ed 304 a 420<\/h2>\n<table>\n<tbody>\n<tr>\n<th>Aspekt<\/th>\n<th>304 Nerezov\u00e1 ocel<\/th>\n<th>420 Nerezov\u00e1 ocel<\/th>\n<\/tr>\n<tr>\n<td>Odolnost proti korozi<\/td>\n<td>Vysok\u00e1<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Tvrdost<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Tvarovatelnost<\/td>\n<td>Vynikaj\u00edc\u00ed<\/td>\n<td>\u0160patn\u00fd<\/td>\n<\/tr>\n<tr>\n<td>Sva\u0159itelnost<\/td>\n<td>Vynikaj\u00edc\u00ed<\/td>\n<td>M\u00edrn\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Tepeln\u00e1 odolnost<\/td>\n<td>A\u017e 870\u00b0C<\/td>\n<td>A\u017e 650\u00b0C<\/td>\n<\/tr>\n<tr>\n<td>Aplikace<\/td>\n<td>Kuchy\u0148sk\u00e9 n\u00e1dob\u00ed, l\u00e9ka\u0159sk\u00e9 p\u0159\u00edstroje<\/td>\n<td>P\u0159\u00edbory, chirurgick\u00e9 n\u00e1stroje<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"conclusion\">Z\u00e1v\u011br<\/h2>\n<p>Hlavn\u00ed rozd\u00edl mezi nerezovou ocel\u00ed 304 a 420 spo\u010d\u00edv\u00e1 v jejich chemick\u00e9m slo\u017een\u00ed a mechanick\u00fdch vlastnostech. Nerezov\u00e1 ocel 304 je vysoce odoln\u00e1 v\u016f\u010di korozi a oxidaci, d\u00edky \u010demu\u017e je vhodn\u00e1 pro r\u016fzn\u00e9 aplikace a prost\u0159ed\u00ed. Na druhou stranu nerezov\u00e1 ocel 420 m\u00e1 vy\u0161\u0161\u00ed obsah uhl\u00edku, poskytuje v\u011bt\u0161\u00ed tvrdost a pevnost, ale men\u0161\u00ed odolnost proti korozi, d\u00edky \u010demu\u017e je ide\u00e1ln\u00ed pro p\u0159\u00edbory a jin\u00e9 \u010depele.<\/p>","protected":false},"excerpt":{"rendered":"<p>Obsah Jak\u00e9 jsou ekvivalenty nerezov\u00e9 oceli 304 a 420? SS420 a SS304: Co je lep\u0161\u00ed? V\u00fdhody a nev\u00fdhody pou\u017eit\u00ed nerezov\u00e9 oceli 304 vs 420 Odolnost proti korozi 420 vs 304 z nerezov\u00e9 oceli 304 vs 420 z nerezov\u00e9 oceli no\u017ee AISI 420 vs 304 Chemick\u00e9 slo\u017een\u00ed Tepeln\u00e1 odolnost: Anal\u00fdza 420 vs 3 [\u2026]<\/p>","protected":false},"author":1,"featured_media":4073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","content-type":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-4004","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-material-selection-guide"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/posts\/4004","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/comments?post=4004"}],"version-history":[{"count":2,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/posts\/4004\/revisions"}],"predecessor-version":[{"id":4007,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/posts\/4004\/revisions\/4007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/media\/4073"}],"wp:attachment":[{"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/media?parent=4004"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/categories?post=4004"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/machining-quote.com\/cs\/wp-json\/wp\/v2\/tags?post=4004"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}