{"id":2130,"date":"2021-04-09T08:56:42","date_gmt":"2021-04-09T08:56:42","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2130"},"modified":"2021-04-09T08:56:42","modified_gmt":"2021-04-09T08:56:42","slug":"304-stainless-steel-vs-403-stainless-steel","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/pl\/304-stainless-steel-vs-403-stainless-steel\/","title":{"rendered":"Stal nierdzewna 304 VS stal nierdzewna 403"},"content":{"rendered":"<p>Stopki 304 i 430 s\u0105 powszechnie stosowanymi materia\u0142ami ze stali nierdzewnej. Stal nierdzewna 304 jest typem stali austenitowej ze stopu chromowo-niklowego o g\u0119sto\u015bci 7,93 g\/cm3, znanej r\u00f3wnie\u017c jako stal nierdzewna 18\/8. Stali z serii 300 jest najcz\u0119\u015bciej stosowanym rodzajem stali. Mo\u017ce wytrzyma\u0107 temperatur\u0119 do 800 \u00b0C, charakteryzuje si\u0119 dobr\u0105 wydajno\u015bci\u0105 przetwarzania i wytrzyma\u0142o\u015bci\u0105, jest szeroko stosowana w wymaganiach dotycz\u0105cych urz\u0105dze\u0144 i cz\u0119\u015bci o dobrej sprawno\u015bci og\u00f3lnej (odporno\u015b\u0107 na korozj\u0119 i formowanie). Stal 304L jest wersj\u0105 o niskiej zawarto\u015bci w\u0119gla stali 304, kt\u00f3ra nie wymaga po\u017ceglowania po spawaniu, dlatego jest szeroko stosowana w produkcji element\u00f3w o grubo\u015bci \u015bcianki (ok. 5 mm i wi\u0119cej). Wysoki zawarto\u015b\u0107 w\u0119gla w stali 304H pozwala na stosowanie w wysokich temperaturach. Struktura austenitu po po\u017ceglowaniu zapewnia tym stopom doskona\u0142\u0105 wytrzyma\u0142o\u015b\u0107, nawet w niskich temperaturach zamarzania.<\/p>\n<p>Niska zawarto\u015b\u0107 w\u0119gla, wysoka zawarto\u015b\u0107 chromu w stali nierdzewnej 430 jest jedn\u0105 z najcz\u0119\u015bciej spotykanych stali ferritowych, charakteryzuje si\u0119 dobr\u0105 odporno\u015bci\u0105 na korozj\u0119, znana r\u00f3wnie\u017c jako 18\/0 lub 18-0, nale\u017cy do serii stali nierdzewnych 400. Mo\u017ce by\u0107 nieco wzmocniona obr\u00f3bk\u0105 zimn\u0105, ale odporno\u015b\u0107 na niskie temperatury jest s\u0142aba, a og\u00f3lnie nie mo\u017cna j\u0105 twardzi\u0107 obr\u00f3bk\u0105 ciepln\u0105. Jej przewodno\u015b\u0107 cieplna jest lepsza ni\u017c w austenicie, wsp\u00f3\u0142czynnik rozszerzalno\u015bci cieplnej jest mniejszy ni\u017c w austenicie, odporno\u015b\u0107 na ciep\u0142o, zm\u0119czenie, dodanie stabilizuj\u0105cego elementu tytanu sprawia, \u017ce cz\u0119\u015b\u0107 spoiny spawania ma dobr\u0105 w\u0142a\u015bciwo\u015b\u0107 mechaniczn\u0105, mo\u017ce by\u0107 stosowana do dekoracji budynk\u00f3w, cz\u0119\u015bci grza\u0142ek paliwowych, urz\u0105dze\u0144 gospodarstwa domowego, cz\u0119\u015bci urz\u0105dze\u0144 gospodarstwa domowego. 430F to rodzaj stali o wydajno\u015bci ci\u0119cia bez obci\u0105\u017cenia w stali 430, stosowana g\u0142\u00f3wnie w tokarkach automatycznych, \u015brubach i nakr\u0119tkach itp. 430LX dodaje Ti lub Nb do stali 430, zmniejsza zawarto\u015b\u0107 C i poprawia wydajno\u015b\u0107 obr\u00f3bki oraz wydajno\u015b\u0107 spawania. S\u0142u\u017cy g\u0142\u00f3wnie do produkcji zbiornik\u00f3w ciep\u0142ej wody, system\u00f3w podgrzewania wody, urz\u0105dze\u0144 sanitarnych, domowych urz\u0105dze\u0144 u\u017cytkowych, k\u00f3\u0142ek wahaczy rower\u00f3w itp.<\/p>\n<p>&nbsp;<\/p>\n<p>Zgodnie z norm\u0105 ASTM A240 \u2013 Specyfikacje dla blach, arkuszy i ta\u015bm ze stali nierdzewnej o chromie i niklu dla zbiornik\u00f3w ci\u015bnieniowych i do innych zastosowa\u0144 og\u00f3lnych \u2013 stal nierdzewna 430 powinna zawiera\u0107 mniej ni\u017c 0,12% w\u0119gla, od 16 do 18% chromu oraz mniej ni\u017c 0,75% niklu, r\u00f3\u017cnica mi\u0119dzy 304 a 430 przedstawiona jest w poni\u017cszej tabeli:<\/p>\n<p><strong>Por\u00f3wnanie sk\u0142adu chemicznego\u00a0<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"94\">UNS<\/td>\n<td width=\"94\">C<\/td>\n<td width=\"94\">Mn<\/td>\n<td width=\"94\">P<\/td>\n<td width=\"94\">S<\/td>\n<td width=\"94\">Si<\/td>\n<td width=\"94\">Cr<\/td>\n<td width=\"94\">Ni<\/td>\n<td width=\"94\">Mo<\/td>\n<\/tr>\n<tr>\n<td width=\"94\">S30400<\/td>\n<td width=\"94\">0.07<\/td>\n<td width=\"94\">2.00<\/td>\n<td width=\"94\">0.045<\/td>\n<td width=\"94\">0.03<\/td>\n<td width=\"94\">0.75<\/td>\n<td width=\"94\">17.5-19.5<\/td>\n<td width=\"94\">8.0-10.5<\/td>\n<td width=\"94\">\/<\/td>\n<\/tr>\n<tr>\n<td width=\"94\">S43000<\/td>\n<td width=\"94\">0.12<\/td>\n<td width=\"94\">1,00<\/td>\n<td width=\"94\">0.04<\/td>\n<td width=\"94\">0.03<\/td>\n<td width=\"94\">1.00<\/td>\n<td width=\"94\">16.0-18.0<\/td>\n<td width=\"94\">0.75<\/td>\n<td width=\"94\">\/<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><strong>Por\u00f3wnanie w\u0142a\u015bciwo\u015bci mechanicznych<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"170\">Oceny<\/td>\n<td width=\"170\">Si\u0142a plastyczno\u015bci, MPa<\/td>\n<td width=\"170\">Si\u0142a rozci\u0105gaj\u0105ca, MPa<\/td>\n<td width=\"170\">Pr\u0119\u017cno\u015b\u0107 w pozycji pionowej w po\u0142o\u017ceniu 2\/50 mm, min. %<\/td>\n<td width=\"170\">Twardo\u015b\u0107, HBW<\/td>\n<\/tr>\n<tr>\n<td width=\"170\">304<\/td>\n<td width=\"170\">205<\/td>\n<td width=\"170\">515<\/td>\n<td width=\"170\">40<\/td>\n<td width=\"170\">183<\/td>\n<\/tr>\n<tr>\n<td width=\"170\">403<\/td>\n<td width=\"170\">205<\/td>\n<td width=\"170\">450<\/td>\n<td width=\"170\">22<\/td>\n<td width=\"170\">201<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Podsumowuj\u0105c, r\u00f3\u017cni\u0105 si\u0119 one g\u0142\u00f3wnie w nast\u0119puj\u0105cych punktach:<\/p>\n<ul>\n<li><strong>Odporno\u015b\u0107 na korozj\u0119<\/strong>Odporno\u015b\u0107 na korozj\u0119 stali nierdzewnej 304 jest lepsza ni\u017c 430. Poniewa\u017c stal nierdzewna 430 zawiera 16,00\u201318,00% chromu, zasadniczo nie zawiera niklu, stal nierdzewna 304 zawiera wi\u0119cej chromu i niklu;<\/li>\n<li><strong>Stabilno\u015b\u0107<\/strong>: Stal nierdzewna 430 ma form\u0119 ferity, stal nierdzewna 304 to austenity, jest bardziej stabilna ni\u017c stal nierdzewna 430;<\/li>\n<li><strong>Twardo\u015b\u0107<\/strong>Twardo\u015b\u0107 stali 304 jest wy\u017csza ni\u017c w przypadku stali nierdzewnej 430;<\/li>\n<li><strong>Wydajno\u015b\u0107 cieplna<\/strong>Prowadzenie ciep\u0142a stali nierdzewnej ferritu 430 jest podobne do stali nierdzewnej 304;<\/li>\n<li><strong>W\u0142a\u015bciwo\u015bci mechaniczne<\/strong>: Mechaniczne w\u0142a\u015bciwo\u015bci spoin spawanych ze stali nierdzewnej 430 s\u0105 lepsze ni\u017c w przypadku stali nierdzewnej 304 ze wzgl\u0119du na dodanie stabilnego pierwiastka chemicznego \u2013 tytanu.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Grades 304 and 430 are commonly used stainless steel materials. 304 stainless steel is a general type of chromium-nickel austenitic stainless steel, the density of 7.93 g\/cm3, also known as 18\/8 stainless steel, is 300 series of stainless steel is the most commonly used steel. It can withstand high temperature 800\u2103, has good processing performance [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2130","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Grades 304 and 430 are commonly used stainless steel materials. 304 stainless steel is a general type of chromium-nickel austenitic stainless steel, the density of 7.93 g\/cm3, also known as 18\/8 stainless steel.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"WLD Stainless\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/wldstainless.com\/pl\/304-stainless-steel-vs-403-stainless-steel\/\" \/>\n\t<meta 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