{"id":3957,"date":"2023-06-06T02:39:54","date_gmt":"2023-06-06T02:39:54","guid":{"rendered":"https:\/\/china-maching.com\/?p=3957"},"modified":"2023-08-29T02:00:06","modified_gmt":"2023-08-29T02:00:06","slug":"all-you-need-to-know-about-420-stainless-steel","status":"publish","type":"post","link":"https:\/\/china-maching.com\/hr\/sve-sto-trebate-znati-o-nehrdajucem-celiku-420\/","title":{"rendered":"Sve \u0161to trebate znati o nehr\u0111aju\u0107em \u010deliku 420"},"content":{"rendered":"

\u0160to je nehr\u0111aju\u0107i \u010delik 420?<\/h2>\n

\"\u0160to<\/p>\n

Nehr\u0111aju\u0107i \u010delik sadr\u017ei minimalno 10,5% kroma, koji stvara za\u0161titni sloj na povr\u0161ini metala koji sprje\u010dava hr\u0111anje i koroziju. Razlikuje se od ostalih uobi\u010dajenih vrsta \u010delika, poput uglji\u010dnog \u010delika, po tome \u0161to je mnogo otporniji na habanje i mrlje.<\/p>\n

Kemijski sastav<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 dobio je ime po \u010detiri znamenke u svom sastavu, koje predstavljaju postotak svakog elementa koji \u010dini leguru. U ovom slu\u010daju, nehr\u0111aju\u0107i \u010delik 420 sadr\u017ei 0,15% ugljika, 1,0% kroma i 0,25% molibdena. Sadr\u017eaj ugljika daje snagu i tvrdo\u0107u, dok krom i molibden pove\u0107avaju otpornost na koroziju i habanje.<\/p>\n

Fizi\u010dka svojstva<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 ima gusto\u0107u od oko 7,75 g\/cm\u00b3, \u0161to je relativno nisko u usporedbi s drugim vrstama \u010delika. Njegova \u010dvrsto\u0107a i tvrdo\u0107a su visoke, s vla\u010dnom \u010dvrsto\u0107om od 700-1190 MPa i Brinellovom tvrdo\u0107om od 196-236. Tako\u0111er ima dobru fleksibilnost, \u0161to olak\u0161ava oblikovanje i oblikovanje. Jedno od njegovih najzna\u010dajnijih fizi\u010dkih svojstava je njegova iznimnost otpornost na koroziju<\/a>.<\/p>\n

Svojstva \u010delika<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 svestran je materijal s nekoliko svojstava \u010delika koja ga \u010dine prikladnim za razli\u010dite primjene. Dobro reagira na toplinsku obradu, \u0161to pove\u0107ava njegovu snagu i tvrdo\u0107u, \u0161to ga \u010dini idealnim za kirur\u0161ke instrumente, pribor za jelo i dijelove strojeva. Tako\u0111er ima izvrsnu obradivost, \u0161to mu omogu\u0107uje jednostavno oblikovanje i oblikovanje u zamr\u0161ene komponente. Njegova relativno niska toplinska vodljivost \u010dini ga pogodnim za primjene koje zahtijevaju otpornost na toplinu i oksidaciju.<\/p>\n

Zaklju\u010dno, nehr\u0111aju\u0107i \u010delik 420 sadr\u017ei optimalnu koli\u010dinu elemenata koji ga \u010dine vrlo otpornim na koroziju, mrlje i habanje. Njegov kemijski sastav, fizikalna svojstva i svojstva \u010delika \u010dine ga idealnim materijalom za razli\u010dite primjene u raznim industrijama. Razumijevanje svojstava nehr\u0111aju\u0107eg \u010delika 420 presudno je za profesionalce uklju\u010dene u proizvodnju i proizvodnju komponenti koje zahtijevaju visoku \u010dvrsto\u0107u, izdr\u017eljivost i otpornost na koroziju i habanje.<\/p>\n

Za\u0161to je nehr\u0111aju\u0107i \u010delik 420 tako popularan?<\/h2>\n

\"Za\u0161to<\/p>\n

Nehr\u0111aju\u0107i \u010delik 420 je vrsta martenzitni nehr\u0111aju\u0107i \u010delik<\/a> koji sadr\u017ei oko 12% kroma, sadr\u017eaj ugljika od 0,15%-0,40% i male koli\u010dine molibdena. Ova popularna vrsta \u010delika poznata je po svojoj visokoj vla\u010dnoj \u010dvrsto\u0107i, izdr\u017eljivosti i niskoj cijeni, \u0161to je \u010dini privla\u010dnom opcijom za mnoge industrijske primjene. Za razliku od drugih vrsta nehr\u0111aju\u0107eg \u010delika, nehr\u0111aju\u0107i \u010delik 420 mo\u017ee se toplinski obraditi, \u0161to pove\u0107ava njegovu tvrdo\u0107u i snagu.<\/p>\n

Tvrdo\u0107a i snaga<\/h3>\n

Jedan od glavnih razloga za\u0161to je nehr\u0111aju\u0107i \u010delik 420 toliko popularan je njegova vrhunska tvrdo\u0107a i snaga. Njegov visok sadr\u017eaj ugljika omogu\u0107uje postizanje Rockwellove tvrdo\u0107e do 50. Ova razina tvrdo\u0107e \u010dini nehr\u0111aju\u0107i \u010delik 420 idealnim za izradu industrijskih alata za rezanje, o\u0161trica no\u017eeva i kirur\u0161kih instrumenata. Tako\u0111er, svojstva \u010dvrsto\u0107e nehr\u0111aju\u0107eg \u010delika 420 zna\u010de da mo\u017ee izdr\u017eati velika optere\u0107enja, \u0161to ga \u010dini savr\u0161enim izborom za nosive primjene.<\/p>\n

Otpornost na koroziju<\/h3>\n

Osim \u010dvrsto\u0107e, jo\u0161 jedan klju\u010dni atribut koji \u010dini nehr\u0111aju\u0107i \u010delik 420 popularnim je njegova izuzetna otpornost na koroziju. Nehr\u0111aju\u0107i \u010delik 420 pokazuje visoku otpornost na koroziju u usporedbi s drugim vrstama martenzitnog nehr\u0111aju\u0107eg \u010delika zbog sadr\u017eaja kroma. Ova vrsta \u010delika je manje sklona hr\u0111anju i drugim oblicima kvarenja, \u0161to ga \u010dini izvrsnim izborom materijala za pomorske i zrakoplovne primjene.<\/p>\n

Toplinska obrada<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 mo\u017ee se toplinski obraditi, \u0161to omogu\u0107uje modificiranje njegovih svojstava i pove\u0107anje tvrdo\u0107e i \u010dvrsto\u0107e. Proces toplinske obrade uklju\u010duje zagrijavanje \u010delika na odre\u0111enu temperaturu, dr\u017eanje na toj temperaturi unaprijed odre\u0111eno vrijeme, hla\u0111enje i zatim kaljenje. Ovaj proces stvara \u010deli\u010dni materijal s izvrsnim svojstvima, kao \u0161to su visoka otpornost na tro\u0161enje, fleksibilnost i toplinska vodljivost.<\/p>\n

Zavarljivost<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 relativno je jednostavan za zavarivanje, \u0161to ga \u010dini izvrsnom opcijom za razne industrijske primjene. \u010celi\u010dni materijal mo\u017ee se zavarivati kori\u0161tenjem vi\u0161e metoda zavarivanja, uklju\u010duju\u0107i plinsko lu\u010dno zavarivanje volframom (GTAW), plinsko elektrolu\u010dno zavarivanje (GMAW) i otporno zavarivanje. Ispravne tehnike zavarivanja u kombinaciji s ispravnim postupcima prije i poslije zavarivanja pove\u0107avaju \u010dvrsto\u0107u i \u017eilavost ove vrste \u010delika.<\/p>\n

Obradivost<\/h3>\n
\"Sveobuhvatni
Vi\u0161e informacija<\/strong>Sveobuhvatni vodi\u010d za CAD crtanje za CNC stroj<\/span><\/div><\/a><\/div>

Kona\u010dno, obradivost nehr\u0111aju\u0107eg \u010delika 420 je izuzetna, \u0161to ga \u010dini idealnim za proizvodnju dijelova i komponenti za razli\u010dite primjene. Ovu vrstu \u010deli\u010dnog materijala lako je obraditi zbog manje komplicirane mikrostrukture. \u0160tovi\u0161e, njegova obradivost je pobolj\u0161ana toplinskom obradom i postupcima \u017earenja.<\/p>\n

Zaklju\u010dno, popularnost nehr\u0111aju\u0107eg \u010delika 420 prvenstveno je posljedica njegove izuzetne tvrdo\u0107e, \u010dvrsto\u0107e i otpornosti na koroziju. Toplinska obrada, zavarljivost i obradivost ovog materijala \u010dine ga preferiranim izborom za industrijske primjene. Njegove brojne prednosti \u010dine ga idealnom opcijom za proizvo\u0111a\u010de kojima su potrebni \u010dvrsti i izdr\u017eljivi materijali.<\/p>\n

Kako raditi s nehr\u0111aju\u0107im \u010delikom 420?<\/h2>\n

\"Kako<\/p>\n

Rad s nehr\u0111aju\u0107im \u010delikom 420 zahtijeva razumijevanje temeljnih procesa \u017earenja, kaljenja i popu\u0161tanja. Ova vrsta nehr\u0111aju\u0107eg \u010delika je legura martenzitnog stupnja sastavljena od kroma 13-17%, ugljika 0,15% i mangana 1%. Obi\u010dno se koristi za no\u017eeve, o\u0161trice i alate za rezanje zbog svoje izvrsne otpornosti na koroziju, \u010dvrsto\u0107e i tvrdo\u0107e.<\/p>\n

\u017darenje<\/h3>\n

\u017darenje je proces zagrijavanja i hla\u0111enja metala kako bi se promijenila njegova fizikalna i kemijska svojstva. U slu\u010daju nehr\u0111aju\u0107eg \u010delika 420, \u017earenje je potrebno kako bi se smanjio stres, pobolj\u0161ala fleksibilnost i smanjila tvrdo\u0107a. Postoje dvije metode \u017earenja: potpuno \u017earenje i subkriti\u010dno \u017earenje.<\/p>\n

Potpuno \u017earenje izvodi se zagrijavanjem metala na temperaturu iznad 1600\u00b0F i zatim polaganim hla\u0111enjem u pe\u0107i ili u kontroliranoj atmosferi. S druge strane, podkriti\u010dno \u017earenje uklju\u010duje zagrijavanje metala na temperaturu ispod 1350\u00b0F na zraku ili u mirnoj atmosferi i potom hla\u0111enje na sobnu temperaturu.<\/p>\n

Bez obzira na kori\u0161tenu metodu, pridr\u017eavanje ispravnih ciklusa grijanja i hla\u0111enja klju\u010dno je za sprje\u010davanje savijanja ili pucanja metala. Preporu\u010dena brzina hla\u0111enja za nehr\u0111aju\u0107i \u010delik 420 je 30-40\u00b0F po satu, a proces hla\u0111enja treba obaviti u pe\u0107i ili umotavanjem metala u izolacijski materijal.<\/p>\n

Stvrdnjavanje<\/h3>\n

Kaljenje je proces toplinske obrade koji uklju\u010duje pove\u0107anje tvrdo\u0107e i \u010dvrsto\u0107e metala transformacijom njihove mikrostrukture. Za nehr\u0111aju\u0107i \u010delik 420, kaljenje se provodi zagrijavanjem metala na temperaturu od 1850-1950\u00b0F, nakon \u010dega slijedi proces brzog hla\u0111enja poznat kao kaljenje. Proces kaljenja uklju\u010duje uranjanje metala u ulje, vodu ili slanu otopinu kako bi se postigla maksimalna tvrdo\u0107a.<\/p>\n

Tvrdo\u0107a postignuta tijekom kaljenja ovisi o brzini hla\u0111enja i mediju za kaljenje. Na primjer, kaljenje u ulju proizvodi ni\u017eu tvrdo\u0107u, ali je manje vjerojatno da \u0107e uzrokovati savijanje ili pucanje nego voda. Odr\u017eavanje dosljedne i brze brzine hla\u0111enja tijekom kaljenja klju\u010dno je za postizanje \u017eeljene tvrdo\u0107e. Metal mo\u017ee izgubiti svoju tvrdo\u0107u i postati krt ako se ne izvr\u0161i pravilno kaljenje.<\/p>\n

Kaljenje<\/h3>\n

Kaljenje je postupak naknadnog otvrdnjavanja koji smanjuje lomljivost metala i pobolj\u0161ava njegovu \u017eilavost. Kaljenje se vr\u0161i zagrijavanjem o\u010dvrslog metala na temperaturu izme\u0111u 300-700\u00b0F nakon \u010dega slijedi hla\u0111enje. Ovisno o \u017eeljenoj tvrdo\u0107i, proces hla\u0111enja mo\u017ee biti na zraku ili kaljenjem.<\/p>\n

Tijekom kaljenja, mikrostruktura metala se mijenja, a dio tvrdo\u0107e i \u010dvrsto\u0107e se gubi, ali ih zamjenjuje pove\u0107ana \u017eilavost i duktilnost. Tvrdo\u0107a postignuta kaljenjem odre\u0111ena je temperaturom i vremenom procesa zagrijavanja, pri \u010demu vi\u0161e temperature rezultiraju manjom tvrdo\u0107om.<\/p>\n

Zaklju\u010dno, rad s nehr\u0111aju\u0107im \u010delikom 420 zahtijeva razumijevanje procesa \u017earenja, kaljenja i popu\u0161tanja. Ovi procesi zahtijevaju precizno izvo\u0111enje i pa\u017eljivo pra\u0107enje kako bi se postigli \u017eeljeni rezultati. Slijede\u0107i ispravne postupke i cikluse hla\u0111enja mo\u017ee se pove\u0107ati \u010dvrsto\u0107a, tvrdo\u0107a i trajnost metala u raznim industrijskim primjenama.<\/p>\n

Za koje se primjene nehr\u0111aju\u0107i \u010delik 420 mo\u017ee koristiti?<\/h2>\n
\"Radijusi
Vi\u0161e informacija<\/strong>Radijusi zaobljenja: Sve \u0161to trebate znati<\/span><\/div><\/a><\/div>

" <\/p<\/p>\n

Ovaj se materijal \u010desto koristi u raznim industrijskim primjenama zbog izvrsne kombinacije mehani\u010dkih svojstava i pristupa\u010dne cijene.<\/p>\n

Pribor za jelo i kirur\u0161ki instrumenti<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 popularno se koristi u proizvodnji pribora za jelo i kirur\u0161kih instrumenata zbog svoje visoke \u010dvrsto\u0107e, izdr\u017eljivosti i otpornosti na koroziju. To je jeftina alternativa skupljim legurama, kao \u0161to je nehr\u0111aju\u0107i \u010delik 440. Pribor za jelo izra\u0111en od nehr\u0111aju\u0107eg \u010delika 420 jednostavan je za \u010di\u0161\u0107enje, odr\u017eavanje i ima uravnote\u017eenu te\u017einu za udobnu upotrebu. Kirur\u0161ki instrumenti s ovim materijalom nude pouzdan rad, visoku preciznost i jednostavnu sterilizaciju. \u0160tovi\u0161e, nehr\u0111aju\u0107i \u010delik 420 omogu\u0107uje proizvo\u0111a\u010dima proizvodnju zamr\u0161enih oblika i dizajna, \u0161to ga \u010dini izvrsnim izborom za razne primjene.<\/p>\n

Postrojenja za pro\u010di\u0161\u0107avanje vode<\/h3>\n

Postrojenja za pro\u010di\u0161\u0107avanje vode koriste nehr\u0111aju\u0107i \u010delik 420 za razne primjene zbog njegove izvrsne otpornosti na koroziju od vode, kemikalija i drugih zaga\u0111iva\u010da. Komponente kao \u0161to su prirubnice, ventili, armature i spremnici \u010desto se izra\u0111uju od ovog materijala, jer sprje\u010dava stvaranje hr\u0111e i produljuje \u017eivotni vijek opreme. Nehr\u0111aju\u0107i \u010delik 420 tako\u0111er nudi dobra mehani\u010dka svojstva i svojstva trenja, \u0161to ga \u010dini idealnim za impelere pumpi, le\u017eajeve i druge pokretne dijelove.<\/p>\n

Zrakoplovna industrija<\/h3>\n

Nehr\u0111aju\u0107i \u010delik 420 pouzdan je materijal za primjenu u zrakoplovstvu zbog visokog omjera \u010dvrsto\u0107e i te\u017eine, otpornosti na koroziju i toplinske stabilnosti. Obi\u010dno se koristi za izradu zrakoplova, raketa, satelita i drugih zrakoplovnih konstrukcija. Ovaj materijal mo\u017ee izdr\u017eati visoke temperature i ekstremne promjene tlaka, \u0161to ga \u010dini idealnim za komore za izgaranje i tla\u010dne posude. Njegova magnetska svojstva omogu\u0107uju jednostavnu identifikaciju tijekom pregleda, osiguravaju\u0107i cjelovitost i sigurnost opreme. Sposobnost nehr\u0111aju\u0107eg \u010delika 420 da izdr\u017ei velika mehani\u010dka optere\u0107enja i udarce te njegova izvrsna otpornost na zamor \u010dine ga idealnim materijalom za zahtjevne primjene u zrakoplovstvu.<\/p>\n

Zaklju\u010dno, nehr\u0111aju\u0107i \u010delik 420 nudi razne primjene u raznim industrijama, uklju\u010duju\u0107i pribor za jelo i kirur\u0161ke instrumente, postrojenja za pro\u010di\u0161\u0107avanje vode i zrakoplovstvo. Njegova izvrsna \u010dvrsto\u0107a, otpornost na tro\u0161enje, otpornost na koroziju i pristupa\u010dnost \u010dine ga preferiranim materijalom za mnoge primjene.<\/p>\n

Gdje nabaviti nehr\u0111aju\u0107i \u010delik 420?<\/h2>\n

\"Gdje<\/p>\n

Nehr\u0111aju\u0107i \u010delik 420 poznat je po raznim primjenama zbog svojih jedinstvenih svojstava, uklju\u010duju\u0107i izdr\u017eljivost, otpornost na koroziju i snagu u okru\u017eenjima s visokim temperaturama. Obi\u010dno se koristi u proizvodnji, automobilskoj i zrakoplovnoj industriji za proizvodnju kirur\u0161kih instrumenata, pribora za jelo, ventila i industrijske opreme. Uz njegovu \u0161iroku upotrebu, klju\u010dno je razumjeti gdje nabaviti visokokvalitetni nehr\u0111aju\u0107i \u010delik 420 kako bi se osigurala dugotrajnost proizvoda i uspjeh procesa proizvodnje.<\/p>\n

Jedna od opcija za nabavu nehr\u0111aju\u0107eg \u010delika 420 je putem uglednih distributera \u010delika. Ovi distributeri obi\u010dno nude razli\u010dite opcije, uklju\u010duju\u0107i razli\u010dite stupnjeve i zavr\u0161ne obrade nehr\u0111aju\u0107eg \u010delika 420. Klju\u010dno je osigurati da distributer ima dokazanu evidenciju isporuke kvalitetnih proizvoda i pridr\u017eavanja rokova isporuke. Razmotrite \u010dimbenike kao \u0161to su reputacija, recenzije i cijena kada istra\u017eujete opcije.<\/p>\n

Druga alternativa su internetska tr\u017ei\u0161ta koja nude nehr\u0111aju\u0107i \u010delik 420 za kupnju. Ova internetska tr\u017ei\u0161ta mogu pru\u017eiti isplativo rje\u0161enje za dobivanje kvalitetnog \u010delika. Me\u0111utim, kupci moraju biti oprezni i osigurati da je prodavatelj legitiman i nudi kvalitetne proizvode. Preporu\u010duje se odabir prodava\u010da s poznatom povije\u0161\u0107u uspje\u0161nih transakcija i pozitivnih recenzija.<\/p>\n

Proizvo\u0111a\u010di \u010delika tako\u0111er su izvrstan izvor za nabavu nehr\u0111aju\u0107eg \u010delika 420. Ovi proizvo\u0111a\u010di proizvode \u010delik u velikim koli\u010dinama i mogu pru\u017eiti prilagodbe prema va\u0161im specifi\u010dnim potrebama. Rade\u0107i izravno s proizvo\u0111a\u010dem, mo\u017eete osigurati da je \u010delik visoke kvalitete, da zadovoljava va\u0161e to\u010dne specifikacije i imate izravnu komunikaciju tijekom cijelog procesa proizvodnje.<\/p>\n

Ukratko, dobivanje visokokvalitetnog nehr\u0111aju\u0107eg \u010delika 420 klju\u010dno je za razne industrije. Ugledni distributeri \u010delika, internetska tr\u017ei\u0161ta i proizvo\u0111a\u010di odr\u017eive su opcije za nabavu ovog \u010delika. Klju\u010dno je procijeniti \u010dimbenike kao \u0161to su pouzdanost, ugled i cijena kada istra\u017eujete dostupne opcije kako biste osigurali dugotrajnost proizvoda i uspjeh va\u0161eg proizvodnog procesa.<\/p>\n

Preporuka za \u010ditanje: <\/strong>Otpornost nehr\u0111aju\u0107eg \u010delika na koroziju<\/a><\/p>\n

\u010cesto postavljana pitanja<\/h2>\n

\"\u010cesto<\/p>\n

P: Koja su mehani\u010dka svojstva nehr\u0111aju\u0107eg \u010delika 420?<\/h3>\n

O: Mehani\u010dka svojstva nehr\u0111aju\u0107eg \u010delika 420 uklju\u010duju vla\u010dnu \u010dvrsto\u0107u od 655 MPa i granicu razvla\u010denja od 345 MPa u \u017earenom stanju. U kaljenom i pobolj\u0161anom stanju, vla\u010dna \u010dvrsto\u0107a mo\u017ee dose\u0107i do 1600 MPa, a tvrdo\u0107a mo\u017ee biti do 55 HRC.<\/p>\n

P: Kakav je postupak toplinske obrade nehr\u0111aju\u0107eg \u010delika 420?<\/h3>\n

O: Proces toplinske obrade nehr\u0111aju\u0107eg \u010delika 420 obi\u010dno uklju\u010duje \u017earenje na 840-900\u00b0C tijekom 30-60 minuta, nakon \u010dega slijedi kaljenje u zraku ili ulju. Zatim se mo\u017ee temperirati na 150-370\u00b0C 30-60 minuta kako bi se postigla \u017eeljena tvrdo\u0107a i \u010dvrsto\u0107a.<\/p>\n

P: Mo\u017ee li se nehr\u0111aju\u0107i \u010delik 420 zavarivati?<\/h3>\n

O: Nehr\u0111aju\u0107i \u010delik 420 mo\u017ee se zavarivati, ali se op\u0107enito smatra lo\u0161im zavarivanjem zbog ve\u0107eg sadr\u017eaja ugljika i sklonosti pucanju tijekom zavarivanja. Prethodno zagrijavanje i toplinska obrada nakon zavarivanja mogu biti potrebni kako bi se smanjio rizik od pucanja.<\/p>\n

P: Kakav je kemijski sastav nehr\u0111aju\u0107eg \u010delika 420?<\/h3>\n

O: Kemijski sastav nehr\u0111aju\u0107eg \u010delika 420 obi\u010dno uklju\u010duje 0,15% ugljika, 1% mangana, 1% silicija, 0,04% fosfora, 0,03% sumpora, 12-14% kroma i ravnote\u017eu \u017eeljeza.<\/p>\n

P: \u0160to je ASTM A240?<\/h3>\n

O: ASTM A240 standardna je specifikacija za plo\u010de, limove i trake od nehr\u0111aju\u0107eg \u010delika od kroma i krom-nikla za tla\u010dne posude i op\u0107e primjene. Uklju\u010duje specifikacije za 304, 304L, 316, 316L, 321 i 347 klase nehr\u0111aju\u0107eg \u010delika, me\u0111u ostalima.<\/p>\n

P: Kolika je otpornost na koroziju nehr\u0111aju\u0107eg \u010delika 420?<\/h3>\n

O: Nehr\u0111aju\u0107i \u010delik 420 ima dobra svojstva otpornosti na koroziju u slatkoj vodi, pari i blagim kiselinama. Ne preporu\u010duje se u korozivnim sredinama, poput onih koje sadr\u017ee kloride ili sumpornu kiselinu.<\/p>\n

P: Koja je najbolja temperatura kaljenja za nehr\u0111aju\u0107i \u010delik 420?<\/h3>\n

O: Najbolja temperatura kaljenja za nehr\u0111aju\u0107i \u010delik 420 ovisi o \u017eeljenoj tvrdo\u0107i i \u010dvrsto\u0107i. Op\u0107enito, temperira se na 150-370\u00b0C 30-60 minuta kako bi se postigla tvrdo\u0107a od 44-49 HRC.<\/p>\n

P: Koliki je sadr\u017eaj legure nehr\u0111aju\u0107eg \u010delika 420?<\/h3>\n

O: Nehr\u0111aju\u0107i \u010delik 420 visoko je legirani \u010delik s dobrom otporno\u0161\u0107u na koroziju, tvrdo\u0107om i \u010dvrsto\u0107om. Njegov sadr\u017eaj legure uklju\u010duje 12-14% krom i vi\u0161e razine ugljika i mangana od ostalih vrsta nehr\u0111aju\u0107eg \u010delika.<\/p>\n

P: Koja je razlika izme\u0111u nehr\u0111aju\u0107eg \u010delika 410 i 420?<\/h3>\n

O: Nehr\u0111aju\u0107i \u010delik 410 i 420 je martenzitni nehr\u0111aju\u0107i \u010delik koji sadr\u017ei sli\u010dne koli\u010dine kroma. Me\u0111utim, nehr\u0111aju\u0107i \u010delik 420 ima ve\u0107i sadr\u017eaj ugljika od 410, \u0161to mu daje ve\u0107u tvrdo\u0107u i snagu. To ga tako\u0111er \u010dini te\u017eim za obradu i zavarivanje od 410.<\/p>","protected":false},"excerpt":{"rendered":"

What is 420 Stainless Steel? Stainless steel contains a minimum of 10.5% chromium, which creates a protective layer on the surface of the metal that prevents rusting and corrosion. It differs from other common types of steel, such as carbon steel, in that it is much more resistant to deterioration and staining. Chemical Composition 420 […]<\/p>\n","protected":false},"author":1,"featured_media":3969,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"default","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-3957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cnc-machining-blog"],"yoast_head":"\nAll You Need to Know About 420 Stainless Steel - ETCN<\/title>\n<meta name=\"description\" content=\"Elevate your projects with ETCN's premium 420 Stainless Steel. 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