{"id":2149,"date":"2021-06-30T12:54:16","date_gmt":"2021-06-30T12:54:16","guid":{"rendered":"https:\/\/wldstainless.com\/?p=2149"},"modified":"2021-06-30T12:55:48","modified_gmt":"2021-06-30T12:55:48","slug":"comparison-of-301-301l-301ln-steel-plate","status":"publish","type":"post","link":"https:\/\/wldstainless.com\/cs\/comparison-of-301-301l-301ln-steel-plate\/","title":{"rendered":"Srovn\u00e1n\u00ed ocelov\u00e9ho plechu 301, 301L, 301LN"},"content":{"rendered":"

Nerezov\u00e1 ocel 301 je druh austenitick\u00e9 nerezov\u00e9 oceli s vysokou rychlost\u00ed mechanick\u00e9ho kalen\u00ed. Jeho pevnost v tahu m\u016f\u017ee b\u00fdt a\u017e 1300 MPa nebo v\u00edce. K dispozici jsou 1\/16 za studena v\u00e1lcovan\u00e9 desky 301 tvrd\u011b a\u017e pln\u011b vytvrditeln\u00e9 a zachov\u00e1vaj\u00ed si dostate\u010dnou ta\u017enost za podm\u00ednek 1\/2 kalen\u00ed. Lze jej pou\u017e\u00edt pro sou\u010d\u00e1sti letadel, konstruk\u010dn\u00ed sou\u010d\u00e1sti budov, zejm\u00e9na sou\u010d\u00e1sti \u017eelezni\u010dn\u00edch vag\u00f3n\u016f po v\u00e1lcov\u00e1n\u00ed nebo oh\u00fdb\u00e1n\u00ed. Plechy v\u00e1lcovan\u00e9 za studena ze 3\/4 vytvrzen\u00ed a\u017e po \u00fapln\u00e9 vytvrzen\u00ed by se m\u011bly pou\u017e\u00edvat pro jednoduch\u00e9 konstrukce sou\u010d\u00e1st\u00ed, kter\u00e9 vy\u017eaduj\u00ed vysokou odolnost proti opot\u0159eben\u00ed a elasticitu. The 301 l<\/a> a 301LN jsou verze 301 s n\u00edzk\u00fdm obsahem uhl\u00edku a verze s vysok\u00fdm obsahem dus\u00edku. Pokud je po\u017eadov\u00e1na lep\u0161\u00ed ta\u017enost nebo je t\u0159eba sva\u0159ovat profily s tlust\u00fdm pr\u016f\u0159ezem, d\u00e1v\u00e1 se p\u0159ednost n\u00edzkouhl\u00edkov\u00e9 verzi 301L. Vy\u0161\u0161\u00ed obsah dus\u00edku 301Ln m\u016f\u017ee kompenzovat ni\u017e\u0161\u00ed obsah uhl\u00edku. Jsou specifikov\u00e1ny v ASTM A666, JIS G4305 a EN 10088-2.<\/p>\n

 <\/p>\n

Chemick\u00e9 slo\u017een\u00ed 301, 301L, 301LN<\/strong><\/p>\n\n\n\n\n\n\n
\u0160koln\u00ed zn\u00e1mka<\/td>\nC<\/td>\nMn<\/td>\nSi<\/td>\nP<\/td>\nS<\/td>\nCr<\/td>\nNi<\/td>\nN<\/td>\n<\/tr>\n
301<\/td>\n\u22640,15<\/td>\n2.0<\/td>\n1.0<\/td>\n0.045<\/td>\n0.03<\/td>\n16.0-18.0<\/td>\n6.0-8.0<\/td>\n0.1<\/td>\n<\/tr>\n
301 l<\/td>\n\u22640,03<\/td>\n2.0<\/td>\n1.0<\/td>\n0.045<\/td>\n0.03<\/td>\n16.0-18.0<\/td>\n6.0-8.0<\/td>\n0.2<\/td>\n<\/tr>\n
201 LN<\/td>\n\u22640,03<\/td>\n2.0<\/td>\n1.0<\/td>\n0.045<\/td>\n0.03<\/td>\n16.5-18.5<\/td>\n6.0-8.0<\/td>\n0.07-0.2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Mechanick\u00e1 vlastnost 301, 301L, 301LN<\/strong><\/p>\n\n\n\n\n\n\n\n\n\n\n
301 Temperov\u00e1n\u00ed<\/p>\n

ASTM A666<\/td>\n

Pevnost v tahu, Mpa<\/td>\nMez kluzu 0,2%, Mpa<\/td>\nProdlou\u017een\u00ed (v 50 mm) tlou\u0161\u0165ka > 0,76 mm<\/td>\nTvrdost, Rockwell<\/td>\n<\/tr>\n
\u017d\u00edhan\u00fd<\/td>\n515<\/td>\n205<\/td>\n40<\/td>\n\/<\/td>\n<\/tr>\n
1\/16 tvrd\u00fd<\/td>\n620<\/td>\n310<\/td>\n40<\/td>\n\/<\/td>\n<\/tr>\n
1\/8 tvrd\u00e9<\/td>\n690<\/td>\n380<\/td>\n40<\/td>\n\/<\/td>\n<\/tr>\n
1\/4 tvrd\u00e9<\/td>\n860<\/td>\n515<\/td>\n25<\/td>\n25-32<\/td>\n<\/tr>\n
1\/2 tvrd\u00e9<\/td>\n1035<\/td>\n760<\/td>\n18<\/td>\n32-37<\/td>\n<\/tr>\n
3\/4 tvrd\u00e9<\/td>\n1205<\/td>\n930<\/td>\n12<\/td>\n37-41<\/td>\n<\/tr>\n
Pln\u011b tvrd\u011b<\/td>\n1275<\/td>\n965<\/td>\n9<\/td>\n41+<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Specifikace 301, 301L, 301LN<\/strong><\/p>\n\n\n\n\n\n\n\n
\u0160koln\u00ed zn\u00e1mka<\/td>\nUNS \u010d<\/td>\nEuronorma<\/td>\nJIS<\/td>\n<\/tr>\n
Ne<\/td>\nn\u00e1zev<\/td>\n<\/tr>\n
301<\/td>\nS30100<\/td>\n1.4319<\/td>\nX5CrNi17-7<\/td>\nSUS 301<\/td>\n<\/tr>\n
301 l<\/td>\nS30103<\/td>\n\/<\/td>\n\/<\/td>\nSUS 301L<\/td>\n<\/tr>\n
201 LN<\/td>\nS30153<\/td>\n1.4318<\/td>\nX2CrNiN18-7<\/td>\n\/<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Odolnost proti korozi<\/strong><\/p>\n

Podobn\u00fd 304 nerezov\u00e1 ocel<\/a>m\u00e1 dobrou odolnost proti korozi p\u0159i norm\u00e1ln\u00ed teplot\u011b a m\u00edrn\u00e9 korozi.<\/p>\n

Odolnost v\u016f\u010di teplu<\/strong><\/p>\n

Dobr\u00e1 oxida\u010dn\u00ed odolnost v\u016f\u010di teplot\u00e1m do 840\u00b0C (p\u0159eru\u0161ovan\u00e9 pou\u017e\u00edv\u00e1n\u00ed) a 900\u00b0C (nep\u0159etr\u017eit\u00e9 pou\u017e\u00edv\u00e1n\u00ed). Expozice nad 400 \u00b0C zp\u016fsobuje postupnou ztr\u00e1tu \u00fa\u010dinku mechanick\u00e9ho zpevn\u011bn\u00ed a pevnost p\u0159i 800 \u00b0C je ekvivalentn\u00ed 301 \u017e\u00edh\u00e1n\u00ed. Za podm\u00ednek te\u010den\u00ed se pevnost mechanicky zpevn\u011bn\u00e9ho 301 dokonce sni\u017euje na m\u00e9n\u011b ne\u017e pevnost \u017e\u00edhan\u00e9ho 301.<\/p>\n

O\u0161et\u0159en\u00ed roztokem (\u017e\u00edh\u00e1n\u00edm).<\/strong><\/p>\n

Zah\u0159\u00e1t\u00fd na 1010-1120 \u00b0C a rychle ochlazen\u00fd a \u017e\u00edhan\u00fd p\u0159i p\u0159ibli\u017en\u011b 1020 \u00b0C. Tepeln\u00fdm zpracov\u00e1n\u00edm neztvrdne.<\/p>\n

Pr\u00e1ce za studena<\/strong><\/p>\n

301 z nerezov\u00e9 oceli<\/a> a jeho n\u00edzkouhl\u00edkovou verzi 301L pro pot\u0159eby p\u0159\u00edle\u017eitost\u00ed s vysokou pevnost\u00ed. M\u00e1 velmi vysokou rychlost mechanick\u00e9ho zpevn\u011bn\u00ed asi 14MPa\/%Ra (na ka\u017ed\u00fdch 1% zmen\u0161en\u00ed pracovn\u00ed plochy za studena se pevnost v tahu zv\u00fd\u0161\u00ed o 14MPa), v\u00e1lcov\u00e1n\u00edm za studena a tv\u00e1\u0159en\u00edm za studena lze dos\u00e1hnout velmi vysok\u00e9 pevnosti, \u010d\u00e1st deforma\u010dn\u011b zpevn\u011bn\u00e9ho austenitu p\u0159em\u011bn\u011bna na martenzit. 301 nen\u00ed magnetick\u00fd v podm\u00ednk\u00e1ch \u017e\u00edh\u00e1n\u00ed, ale siln\u011b magnetick\u00fd po zpracov\u00e1n\u00ed za studena.<\/p>\n

Sva\u0159ov\u00e1n\u00ed<\/strong><\/p>\n

301 lze pou\u017e\u00edt pro v\u0161echny standardn\u00ed metody sva\u0159ov\u00e1n\u00ed a v\u011bt\u0161inou lze pro sva\u0159ov\u00e1n\u00ed 301 pou\u017e\u00edt p\u0159\u00eddavn\u00fd kov 308L. Svary nerezov\u00e9 oceli 301 mus\u00ed b\u00fdt \u017e\u00edh\u00e1ny pro optim\u00e1ln\u00ed odolnost proti korozi, zat\u00edmco svary 301L nebo 301Ln \u017e\u00edh\u00e1n\u00ed nevy\u017eaduj\u00ed. Sva\u0159ov\u00e1n\u00ed a \u017e\u00edh\u00e1n\u00ed po sva\u0159ov\u00e1n\u00ed sni\u017euj\u00ed vysokou pevnost zp\u016fsobenou v\u00e1lcov\u00e1n\u00edm za studena, tak\u017ee bodov\u00e9 sva\u0159ov\u00e1n\u00ed se \u010dasto pou\u017e\u00edv\u00e1 k mont\u00e1\u017ei d\u00edl\u016f v\u00e1lcovan\u00fdch za studena 301, kter\u00e9 maj\u00ed malou tepeln\u011b ovlivn\u011bnou z\u00f3nu a pevnost cel\u00e9ho d\u00edlu se t\u00e9m\u011b\u0159 nesn\u00ed\u017e\u00ed.<\/p>\n

Typick\u00e9 aplikace<\/strong><\/p>\n

Konstruk\u010dn\u00ed d\u00edly kolejov\u00fdch vozidel - v\u00e1lcov\u00e1n\u00ed, oh\u00fdb\u00e1n\u00ed nebo ta\u017een\u00ed do profil\u016f, tak\u00e9 v plechu. Trup letadla, silni\u010dn\u00ed p\u0159\u00edv\u011bs, krytka n\u00e1boje auta, dr\u017e\u00e1k st\u011bra\u010de, pru\u017eina toustova\u010de, dr\u017e\u00e1k spor\u00e1ku, r\u00e1m obrazovky, z\u00e1v\u011bsn\u00e1 st\u011bna atd.<\/p>\n

 <\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Nerezov\u00e1 ocel 301 je druh austenitick\u00e9 nerezov\u00e9 oceli s vysokou rychlost\u00ed mechanick\u00e9ho kalen\u00ed. Jeho pevnost v tahu m\u016f\u017ee b\u00fdt a\u017e 1300 MPa nebo v\u00edce. K dispozici jsou 1\/16 za studena v\u00e1lcovan\u00e9 desky 301 tvrd\u011b a\u017e pln\u011b tvrditeln\u00e9 a zachov\u00e1vaj\u00ed si dostate\u010dnou ta\u017enost za podm\u00ednek 1\/2 kalen\u00ed. M\u016f\u017ee b\u00fdt pou\u017eit pro sou\u010d\u00e1sti letadel, konstruk\u010dn\u00ed sou\u010d\u00e1sti budov, [\u2026]<\/p>","protected":false},"author":1,"featured_media":1818,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[],"class_list":["post-2149","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/posts\/2149","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/comments?post=2149"}],"version-history":[{"count":3,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/posts\/2149\/revisions"}],"predecessor-version":[{"id":2152,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/posts\/2149\/revisions\/2152"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/media\/1818"}],"wp:attachment":[{"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/media?parent=2149"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/categories?post=2149"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wldstainless.com\/cs\/wp-json\/wp\/v2\/tags?post=2149"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}