Ndeupi Musiyano Pakati pe304 ne316 Stainless Simbi?
304 uye 316 Stainless simbi ese ari austenitic Stainless mamakisi, asi haashanduke kana nharaunda yebasa yawedzera kudiwa. Musiyano wehunyanzvi unonyanya kukosha ndewekuumbwa: standard 304 ichromium-nickel stainless steel, ukuwo 316 ichiwedzera inosvika 2–3% molybdenum uye kazhinji inotakura nickel yakawanda. Kuwedzerwa kwemolybdenum ndicho chikonzero chikuru 316 ichiwanzoita kuti zvirambe zviri nani kugomba uye kukoromoka kwekororidhi{10}munzvimbo inobereka semhepo yepamhenderekedzo yegungwa, kusvibiswa kwemunyu, kudonha kwemakemikari, uye mamwe masevhisi. Kusiyana neizvi, 304 ndiyo yakajairika{{13}giredhi rechinangwa chemidziyo yemukati, basa remumhepo rakapfava, uye nzvimbo dzakagadzirwa uko kuratidzwa kwechloride kushoma.
Musiyano uripo pakati pe304 ne316 simbi isina tsvina saka hausi nyaya yekusimba kana kutaridzika. Mune yakajairwa annealed mamiriro, iwo ekutanga mejini mazinga ari padyo, uye ese ari maviri anoshandiswa zvakanyanya kune pepa, ndiro, chubhu, pombi, mafittings, matangi, uye midziyo yakagadzirwa. Kupatsanura chaiko ndiko corrosion margin. Kana sevhisi yakaoma, yakachena, uye isina-hasha, 304 inowanzokwana. Kana pamusoro pacho pachiona ma chlorides, marine{8}}yakatarisana, kana kuomesesa yekuchenesa chemistry, 316 kazhinji inopa hwaro hwezvinhu zvinovimbika. Ndiwo musiyano unoshanda pakati pe304 ne316 simbi isina tsvina mukushandiswa kweinjiniya.
Material Classification ye304 uye 316 Stainless Steel
304 uye 316 ndezva300-yakatevedzana austenitic simbi isina tsvinaboka. Saka kuenzanisa hakusi pakati pemakirasi maviri akasiyana zvachose, asi pakati pemakromium maviri ane hukama zvakanyanya-nickel simbi dzisina tsvina dzine maitiro akafanana ekuumba uye ekuwelda, asi kuita ngura kwakasiyana kana ma chlorides uye mamiriro akaomarara apinda pamufananidzo.
Uku kusarudzika kunoshandawo kune akajairwa chigayo chigadzirwa mafomu, kusanganisiracoil yesimbi isina tsvina, sheet, ndiro, pombi, uye chubhu. Mukushandisa macoil, 304 ne316 anogona kupihwa ese ekugadzira, kugadzira, uye kudzika pasi, asi haafanirwe kutorwa seanogona kuchinjana kana nzvimbo yebasa yaunza chloride-inotakura hunyoro, madhipoziti emunyu, kana kuwedzera makemikari anopisa.
Kubva pakuona kweinjiniya, ndosaka 304 uye 316 simbi isina tsvina inowanzofananidzwa mumapurojekiti mamwe chete. Iwo ese ari maviri anogona kugutsa akawanda enzira dzakafanana dzekugadzira, asi ivo havapindure zvakaenzana kune imwechete sevhisi nharaunda.
Maumbirwo Musiyano Pakati pe304 ne316 Stainless Steel
304 uye 316 Stainless Steel mukaha wemakemikari wakatwasuka. Standard 304 yakavakirwa kutenderedza chromium uye nickel. Standard 316 inoshandisa chigadziko chakafanana, asi inowedzera molybdenum uye inowanzotakura nickel yakakwira. Ndicho chikonzero chikuru 316 inowanzosarudzwa kana chloride kuramba ichinyanya kukosha.
| Item | 304 simbi isina tsvina | 316 simbi isina tsvina | Kuverenga kwehunyanzvi |
|---|---|---|---|
| Common giredhi zita | Type 304 | Type 316 | Ose ari maviri akajairwa austenitic Stainless simbi mune mazana matatu akatevedzana. |
| UNS / EN zita | S30400 / 1.4301 | S31600 / 1.4401 | Inobatsira kana chinyorwa chichida kutaridzika zvakanyanya uye kushomeka kwevatengi-. |
| Chromium (Cr) | 18.0–20.0% | 16.0–18.0% | Magiredhi ese ari maviri anoenderana nechromium pakuita-kuumbwa kwefirimu uye maitiro asina tsvina. |
| Nickel (Ni) | 8.0–10.5% | 10.0–14.0% | 316 kazhinji inotakura nickel yakakwira. |
| Molybdenum (Mo) | - | 2.0–3.0% | Uku ndiko kukwidziridzwa kwekemikari mu316 uye ndicho chikonzero chakakosha kuti iite zvirinani munzvimbo dzine chloride{1}. |
| Carbon (max.) | 0.08% | 0.08% | Standard mamakisi; yakaderera{{0}kabhoni L magiredhi anowanzo sarudzwa uko welding uye intergranular corrosion control inonyanya kukosha. |
| Manganese (max.) | 2.00% | 2.00% | Yakafanana base muganho mune yakajairwa chemistry. |
| Silicon (max.) | 0.75–1.00%* | 0.75–1.00%* | Diki alloying basa; muganhu unosiyana zvishoma zvichienderana nereferensi inoshandiswa. |
| Phosphorus (max.) | 0.045% | 0.045% | Muganho wekusachena wakafanana. |
| Sarufa (max.) | 0.030% | 0.030% | Muganho wekusachena wakafanana. |
| Nitrogen (max.) | 0.10% | 0.10% | Muganho wakafanana, kunyange zvazvo nitrogen-misiyano yakagadziridzwa iripo kunze kwekuenzaniswa kwekutanga. |
| Mutsara mukuru{{0}unobva pane musiyano | Cr-Ni simbi isina simbi | Cr-Ni-Mo simbi isina simbi | The 304 uye 316 Stainless simbi musiyano inonyanya amolybdenum{{0}driven corrosion difference, kwete musiyano mukuru wekirasi. |
Dhawunirodha:Kuumbwa Kusiyana Pakati pe304 ne316 Stainless Steel
Tafura iyi inotsanangura chikonzero nei 304 uye 316 simbi isina tsvina musiyanohaiwanzotsanangurwa sekusimudzira kwesimba kutanga. Iyo chemistry-driven corrosion upgrade.
Corrosion resistance ndiyo mutsetse mukuru wekuparadzanisa
Mukuisa kwakawanda chaiko, mubvunzo hausi wekuti zvese zviri zviviri hazvina tsvina, asi kuti nharaunda ine ma chloride akakwana kuita kuti 304 isavimbike nekufamba kwenguva. Chlorides ndiyo poindi iyo iyo 304 uye 316 simbi isina tsvina kuenzanisa inova yakanyanya kukomba. Kupfapfaidza munyu, mhepo yemugungwa, munyu wedeicing, chlorine -inotakura kuchenesa, uye mamwe makemikoro anogona kusundira 304 mukusvibisa, kugomba, kana kukorokoza kusati kwasvika 316.
316 haina kudzivirirwa mukuora nekuda kwekuti ine molybdenum. Chine miganhu. Asi kune chloride -inotakura sevhisi, inowanzopa yakafara muganho wekushanda kupfuura 304.
| Mamiriro ebasa | 304 simbi isina tsvina | 316 simbi isina tsvina | Zvimwe zvakadzama kuverenga kwehunyanzvi |
|---|---|---|---|
| Dry indoor atmosphere | Kazhinji akakodzera | Uyewo akakodzera | Mumusha wakaoma sevhisi isina kusvibiswa kwakaderera uye pasina chloride{{0}inotakura madhipoziti, kunaka kwecorrosion kwe316 kazhinji hakuite sarudzo. Kupera kwepamusoro, kucheneswa, uye kugadzirwa kwemhando kunogona kukosha kupfuura giredhi rinozvishandura pacharo. |
| Mukati mekunze wakapfava kure nemunyu | Kazhinji zvakakodzera | Uyewo akakodzera | Pabasa rekunze pasina kuiswa munyu wakasimba, magiredhi ese anogona kuita zvakanaka, asi kusviba kwetii, kusvibiswa kwepasi, kuyerera kwemvura, uye kupera kunoramba kuchikanganisa chitarisiko nekushanda-kwenguva refu. |
| Mhenderekedzo yegungwa / yegungwa-yakatarisana | Zvakanyanya kukurumidza kusviba uye gomba | Kazhinji inosarudzwa | Mumhepo yemugungwa, 316 inowanzosarudzwa nekuti iyo molybdenum inowedzera inonatsiridza kusawirirana nechloride{{1}driven pitting and crevice corrosion. 304 inogona kushandiswa mune dzimwe nzvimbo dzakapfava dzemahombekombe, asi kumucheto kudiki uye kugadzirisa kunowedzera kukosha. |
| Pombi yemvura service | Kazhinji inogamuchirwa zvichienderana nemhando yemvura | Kazhinji anoshivirira | ASSDA inocherekedza kuti 316 inoshanda zvakanaka mumvura yepombi pazasi nezve250 ppm chlorides. Izvo hazvingoite kuti 304 isakodzere, asi inoratidza kuti sei 316 ichiwanzo kufarirwa sezvo chloride yemukati inosimuka kana kuvimbika kwesevhisi zvinodiwa zvinoomarara. |
| Neutral aqueous service pane ambient tembiricha, pasina mitswe | Inogona kushandiswa kusvika kune200 ppm chlorides | Inogona kushandiswa kusvika kune1000 ppm chlorides | Nhungamiro yeASSDA yekunyudzwa isina kwayakarerekera sevhisi inopa inotaridza yekusarudza mutsara:304/304L yakatenderedza 200 ppm makloridi, 316/316L yakatenderedza 1000 ppm makloridi. Iyi haisi miganho yekugadzirwa kwepasi rose; zvidimbu, madhipoziti, tembiricha, uye pH zvinogona kuderedza kushivirira. |
| Mvura yetsvina / yakaderera-ku{1}}yakadzikama chloride mvura | Marginal panenge200–1000 mg/L chlorideszvichienderana nemamiriro ezvinhu | Kazhinji inosarudzwa mumhando imwechete | World Stainless inocherekedza kuti Type 304 inogona kuva chetezvinogutsa zvishomamukati200–1000 mg/L chloriderenji, nepo Type 316 iriyo sarudzo yakasarudzika ipapo. Uyu muenzaniso wakanaka wekuti sei makorokoza nemamiriro akamira akakosha segiredhi rezita. |
| Chloride{{0}iine washdown / chikafu kana kuchenesa nzira | Inogona kuganhurirwa zvichienderana nehuwandu hwechloride, nguva yekubata, uye{0}kuoma kwasara | Kazhinji inopikisa | Pakugezesa kudzokororwa, zvakakosha hazvisi kemesitiri yekuchenesa chete asiwo kuisa pfungwa, tembiricha, kugezeswa kwemhando, uye kana machlorides achiramba ari pamusoro mushure mekuoma. 316 anowanzopa muganho wakafara wekushanda. |
| Acidic chloride media / yakawedzera hukasha maitiro chemistry | Kazhinji hazvina kukodzera kana zvishoma | Zvirinani pane 304 mune dzimwe nguva, asi zviri pakati nepakati-zvakananga | Mune acidic kana neutral chloride mhinduro, pitting uye crevice corrosion ndiyo inonyanya kunetseka. Outokumpu inocherekedza kuti kuwedzera chromium, molybdenum, uye nitrogen kunonatsiridza kusawirirana, asi kunyangwe 316 ine painogumira pajekerere mune yakasimba chloride-asidhi sevhisi. |
Zvebasa rekudyara, kugadzira chikafu, skids yekushandisa, enclosures, uye magungano akagadzirwa, ichi kazhinji ndicho chikamu chinonyanya kukosha. Mazita emakemikari haakoshese pane izvo zvinoonekwa nepamusoro musevhisi.
Mechanical Property Kuenzanisa kwe304 uye 316 Stainless Simbi
Kubva pane zvemuchina-maonero emidziyo,304uye316dziri pedyo kupfuura zvirevo zvakawanda zviri nyore.Pasi pezvinowanzotaurwa zveflat-zvakarongedzerwa zvechigadzirwa, magiredhi ese anogovanisa hudiki hwakafananatensile simba, bereka simba,uyeelongationmu annealed condition. Ndosaka sarudzo yegiredhi mumaapplication akawanda isati yaitwa nekamuri{1}}simba retembiricha, asi nenharaunda yekuora, nzira yekugadzira, uye sevhisi. Pasi pemashizha egiredhi akapfupikiswa neWorld Stainless / Atlas yeASTM A240/A240M flat-yakakungurutswa chigadzirwa, zvese304uye316dzakanyorwa pa515 MPa shoma tensile simba, 205 MPa shoma 0.2% chiratidzo chesimba,uye40% shoma elongation.
Chinonyanya kukosha kuverenga kwehunyanzvi ndechekuti magiredhi ese ari maviri anotanga kubva padanho rekutanga rakafanana, asi haana kufanana mune yese yechipiri pfuma kana kufunga kwekugadzira.316inobvumira kuomarara kwepamusoro zvishoma mune yakanyorwa flat -data rakakungurutswa, uku304uye316ese ari maviri anoramba ari austenitic mamakisi ayo anowanzo kusimbiswa nebasa rinotonhora pane kupisa kupisa. Iyo imwechete sosi seti zvakare inotaura kuti inorema welded zvikamu mukati316kazhinji kuenda316Luko kuderedzwa kwecarbide precipitation ngozi inodiwa, nepo304Linoshandiswa zvakafanana apo welding uye intergranular corrosion control inonyanya kukosha.
| Property / technical point | 304 simbi isina tsvina | 316 simbi isina tsvina | Kuverenga kwehunyanzvi |
|---|---|---|---|
| Kusimba simba, min. | 515 MPa | 515 MPa | Hapana mutsauko unokosha wemusoro wenyaya mune zvishoma zvinodikanwa pasi peiyo yakanyorwa flat -yakakungurutswa chigadzirwa data. |
| Goho simba, 0.2% uchapupu, min. | 205 MPa | 205 MPa | Base structural level inonyanya kufanana mune annealed condition. |
| Elongation mu50 mm, min. | 40% | 40% | Magiredhi ese ari maviri anochengeta yakakwira ductility uye anoshandiswa zvakanyanya panodiwa kuumba. |
| Rockwell B kuoma, max. | 92 HRB | 95 HRB | 316 inobvumirwa kuomarara kwepamusoro zvishoma mugiredhi rakanyorwa. |
| Brinell kuoma, max. | 201 HB | 217 HB | Zvakare, mutsauko muduku, asi kwete kazhinji mutyairi wekusarudza mukuru. |
| Kusimbisa nzira | Kutonhora-basa rakasimbiswa mukuita | Kutonhora-basa rakasimbiswa mukuita | Hapana giredhi rinowanzo kusarudzwa nekuda kwekupisa-kwakanakira simba rekurapa. |
| Yakaderera{{0}carbon welded sarudzo | 304Linowanzoshandiswa uko welding uye intergranular corrosion control inokosha | 316Linowanzoshandiswa nokuda kwechikonzero chimwe chete mubasa rinokuvadza | Iwo "L" mamakisi anonyanya kukosha mukugadzira akasungwa pane yakapusa 304 vs 316 label chete. |
| Dual{0}certified stock | 304 / 304L mbiri mbiri certification yakajairika mundiro, pombi, uye kutenderera bar | 316 / 316L mbiri mbiri certification zvakare yakajairika mundiro, pombi, uye kutenderera bara | Chaiyo chinounzwa stock kazhinji chinoda kutariswa chinopesana nechitupa chebvunzo, kwete kufungidzirwa kubva kupfupi giredhi tsananguro. |
Dhawunirodha: 304 vs 316 Stainless Simbi: Mechanical Properties uye Sarudzo Logic
Ndosaka kuenzanisa kwe304 ne316 simbi isina simbi kuchiwanzogadziriswa nemhoteredzo, kwete nekushanduka kukuru kwekamuri{2}}simba remagetsi.
Nguva Yekusarudza 304 Stainless Simbi
304inowanzo sarudzwa apo sevhisi yakachena, ichiita ngura zvinyoro, uye isingafambiswi nekuiswa chloride kana kuchengetedza munyu. Mhosva dzakajairika dzinosanganisira:
- Indoor muchina anovhara, akavharirwa, uye zvikamu zvekutsigiramumashopu akaoma, makamuri ekushandisa, mitsetse yekurongedza, uye nzvimbo dzekugadzira zvakajairika umo mhepo yakagadzikana uye kusvibiswa kwemunyu kusingatarisirwe.
- Chikafu{{0}chekubata kana kicheni{1}}zvikamu zvakagadzirwazvakaita semabhenji, masingi, mapaneru,-matangi ebasa, uye tubhing panodiwa kuchenesa asi kemikari yekuchenesa haina chloride yakasimba{{1}uye mudziyo hausiyiwe une munyu wakawanda.
- Zvigadzirwa zvekugadzira uye zvekushongedzarinoshandiswa munzvimbo dzakadzivirirwa kunze kana mukati, kusanganisira matrimu, mahandrails, makolamu akavha, uye mapaneru akaungana munzvimbo dzisiri -mugungwa.
- Maitiro uye utility zvikamuzvakaita semavhavha, dzimba, mabhuraketi ezviridzwa, mapaneru ekupinda, uye -duty tubing rinonyanya kudiwa apo chinonyanya kudiwa ndechekushingirira mukuora kwete kuramba kurwiswa kwechloride.
- Kuchengetedza uye kugadzira zvinhuzvakaita semakabhati, matafura ekusevenza, machute, mahopper, nematangi-asina kunyudzwa umo mwando uri pakati nepakati, mvura inoyerera yakanaka, uye madhipoziti haarambe ari pamusoro kwenguva refu.
- Welded machira ari munyoro sevhisiuko mhoteredzo isingakodzeri kuenda kugiredhi remolybdenum{{0}yekubereka, uye uko 304 kana 304L yatosangana nezvaidiwa zvekuora uye kugadzira.
Nguva Yekusarudza 316 Stainless Simbi
316inowanzosarudzwa kana nharaunda yesevhisi ichiunza kuwedzera kunoramba kuripo chloride mutoro, yakaoma washdown chemistry, kana njodzi yakasimba yegomba uye mukaha wecorrosion. Mhosva dzakajairika dzinosanganisira:
- Zvigadzirwa zvemumahombekombe uye zvemugungwa -zvakabatanasenge njanji dzekunze, mabhokisi emidziyo, mafuremu emidziyo, manera, nenzvimbo dzekupinda dzinosangana nemunyu-mhepo yakaremerwa, -inotakurwa nemhepo, kana kupfapfenyura{2}nzvimbo yakasvibiswa.
- Washdown-zvinorema kugadzira michinamuzvikafu, zvinwiwa, mishonga, kana makemikari maplants umo nzvimbo dzinogara dzichiratidzwa mishonga yekuchenesa, mishonga yekuuraya utachiona, uye kunyorova-kunosiya zvisaririra.
- Kunze kushandiswa uye kugadzirisa hardwaresezvitsigiso zvepombi, mabhanhire, mabhokisi epajunction, magadhi evharuvhu, uye mabhuraketi akagadzirwa akaiswa panoiswa munyu we deicing, industrial fallout, kana chloride-inotakura madhipoziti pakati penguva dzekugadzirisa.
- Matangi, tubing, uye magungano akagadzirwakubata media kana kuti process mamiriro anoda corrosion margin yakakwira kupfuura 304 inogona kupa, kunyanya apo mitswe, mitsetse yegasket, lap joints, kana yakaderera{1}madhiraivha ari chikamu chekugadzira.
- Kugadzirwa kwemishonga yemiti uye -pamhenderekedzo yegungwauko nharaunda isina kuomarara zvekuti inoda yakakwira alloy system, asi ichiri nehukasha zvekuti 304 inogona kuve panjodzi yekusvibiswa, kugomba, kana kurwiswa kwepasi nguva isati yakwana.
- Hurefu-zvekushandisa kunze kwehupenyuuko kuchengetwa kwechitarisiko, kudzikiswa kwekugadzirisa, uye kuramba chloride iri nani{{0}inoenderana negomba zvakakosha pane kudzikisa mutengo wekutanga.
FAQ
01.Is 316 inogara iri nani pane 304 simbi isina tsvina yekushandisa kunze?
02.Paiyi chloride level inofanira kuvandudzwa kusvika 316 simbi isina tsvina?
03.Zvekugadzira machira, ndinofanira kuenzanisa 304 vs 316 kana 304L vs 316L?
04.Is 316 simbi isina tsvina yakakodzera mvura yegungwa kana inopisa chloride sevhisi?
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