Stainless hlau muaj cov kav dej yog cov khoom tseem ceeb thoob plaws ntau qhov kev lag luam vim lawv lub zog zoo heev, kev tiv thaiv corrosion, thiab kev kub siab ua haujlwm siab. Nyob ntawm qhov chaw ua haujlwm thiab cov kev qhia tshwj xeeb, cov qib siv feem ntau suav nrog 304, 316, 321, 347, 904L, nrog rau duplex stainless hlau zoo li2205thiab2507 ib. Kab lus no tshawb xyuas qhov ua tau zoo, lub peev xwm siab, thiab daim ntawv thov ntawm cov kav dej stainless hlau los qhia kev xaiv cov khoom tsim nyog.
1. Hom Stainless Hlau Qib thiab lawv cov yam ntxwv
•304L stainless hlau muaj yeeb nkab: Raws li cov pa roj carbon tsawg 304 steel, feem ntau, nws cov corrosion kuj zoo ib yam li ntawm 304, tab sis tom qab vuam los yog kev ntxhov siab nyem, nws tsis kam mus rau intergranular corrosion yog zoo heev, thiab nws muaj peev xwm tuav tau zoo corrosion tsis muaj kev kho cua sov.
• 304 stainless hlau muaj yeeb nkab: Nws muaj qhov zoo corrosion kuj, kub tsis kam, tsis tshua muaj kub lub zog thiab txhua yam khoom, zoo kub ua khoom xws li stamping thiab dabtsi yog khoov, thiab tsis muaj kev kho cua sov hardening tshwm sim. Siv: tableware, txee, boilers, pib qhov chaw, khoom kho mob, tsev cov ntaub ntawv, zaub mov kev lag luam (siv kub -196 ° C-700 ° C)
Cov yam ntxwv tseem ceeb ntawm 310 stainless hlau muaj yeeb nkab yog: kub tsis kam, feem ntau siv hauv boilers, tsheb tso kav. Lwm yam khoom yog dav dav.
• 303 stainless hlau muaj yeeb nkab: Los ntawm kev ntxiv me me ntawm sulfur thiab phosphorus, nws yooj yim dua txiav dua 304, thiab lwm yam khoom zoo ib yam li 304.
•302 stainless hlau muaj yeeb nkab: 302 stainless hlau tuav yog dav siv nyob rau hauv nws pib qhov chaw, aviation, aerospace hardware cuab yeej, thiab tshuaj lom neeg kev lag luam. Tshwj xeeb raws li nram no: handicrafts, bearings, zawv zawg paj, cov cuab yeej kho mob, cov khoom siv hluav taws xob, thiab lwm yam nta: 302 stainless hlau pob belongs rau austenitic steel, uas yog ze rau 304, tab sis 302 muaj hardness ntau dua, HRC≤28, thiab muaj xeb zoo thiab corrosion kuj.
•301 stainless hlau muaj yeeb nkab: zoo ductility, siv rau molded khoom. Nws tuaj yeem ua tau sai sai los ntawm kev siv tshuab ua haujlwm. Zoo weldability. Hnav tsis kam thiab qaug zog yog zoo dua li 304 stainless hlau.
• 202 stainless hlau muaj yeeb nkab: belongs rau chromium-nickel-manganese austenitic stainless hlau, nrog kev ua tau zoo dua 201 stainless hlau
•201 stainless hlau muaj yeeb nkab: belongs rau chromium-nickel-manganese austenitic stainless hlau, nrog cov hlau nplaum tsawg
•410 stainless hlau muaj yeeb nkab: belongs rau martensite (high-strength chromium steel), nrog zoo hnav tsis kam thiab tsis zoo corrosion kuj.
•420 stainless hlau muaj yeeb nkab: "Tooj qib" martensitic steel, zoo ib yam li Brinell siab chromium hlau, ib qho ultra-early stainless hlau. Nws kuj yog siv rau cov riam phais thiab tuaj yeem ua kom ci heev.
•430 stainless hlau muaj yeeb nkab: ferritic stainless hlau, siv rau kho kom zoo nkauj, xws li tsheb accessories. Zoo formability, tab sis tsis zoo kub tsis kam thiab corrosion kuj
2. Siab Resistance ntawm Stainless hlau kav
Lub siab muaj peev xwm ntawm cov yeeb nkab steel hlau yog nyob ntawm nws qhov loj me (txoj kab uas hla), phab ntsa thickness (xws li SCH40, SCH80), thiab kev ua haujlwm kub. Cov ntsiab cai tseem ceeb:
• Cov phab ntsa tuab dua thiab cov kab me me ua rau muaj kev tiv thaiv siab dua.
• Cov kub siab dua txo cov khoom siv zog thiab kev kub ntxhov.
•Duplex steels zoo li 2205 muab ze li ob npaug ntawm lub zog ntawm 316L.
Piv txwv li, 4-nti SCH40 304 stainless hlau yeeb nkab tuaj yeem tswj tau kwv yees. 1102 psi raws li ib txwm muaj. Ib tug 1-nti yeeb nkab yuav siab tshaj 2000 psi. Cov kws tshaj lij yuav tsum sab laj ASME B31.3 lossis cov qauv zoo sib xws rau kev ntsuas qhov tseeb.
3. Corrosion Performance nyob rau hauv hnyav ib puag ncig
chloride-nplua nuj Environments
304 yog qhov yooj yim rau pitting thiab SCC hauv thaj chaw ntsev nplua nuj. 316L lossis siab dua yog pom zoo. Rau cov xwm txheej hnyav xws li dej hiav txwv lossis ntsev tsuag, 2205, 2507, lossis 904L yog qhov zoo dua.
Acid los yog Oxidizing Media
316L ua tau zoo nyob rau hauv tsis muaj zog acids. Rau aggressive acids xws li sulfuric los yog phosphoric acid, xaiv 904L los yog high-alloy duplex steels.
Kub-kub oxidation
Rau qhov kub siab tshaj 500 ° C, 304 thiab 316 tuaj yeem poob kev ua haujlwm. Siv cov qib ruaj khov xws li 321 lossis 347 rau kev pabcuam txuas mus txog ~ 900 ° C.
4. Cov ntawv thov kev lag luam loj
Roj & Roj Kev Lag Luam
Siv nyob rau hauv cov txheej txheem piping, tshav kub exchangers, thiab thauj kab. Rau cov roj qaub thiab cov tshuaj chloride, 2205/2507/904L nyiam dua. Duplex steels yog dav siv nyob rau hauv tshav kub exchangers rau lawv lub zog siab thiab corrosion kuj.
Khoom noj & dej haus
Smooth nto tiv thaiv kab mob loj hlob. 304/316L yog qhov zoo tagnrho rau cov khoom noj siv mis, brewing, thiab kua ntses. 316L ua tau zoo dua nrog cov khoom noj acidic lossis qab ntsev. Cov kav dej feem ntau yog electropolished rau kev nyiam huv.
Kev lag luam kws tshuaj
Yuav tsum muaj siab purity thiab corrosion kuj. 316L thiab ntau yam xws li 316LVM yog siv rau cov dej huv huv thiab CIP / SIP systems. Qhov saum npoo feem ntau yog iav-polished.
5. Phau Ntawv Qhia Xaiv Qib los ntawm Daim Ntawv Thov
| Kev thov ib puag ncig | Cov qib pom zoo |
| General Dej / Cua | 304/304 L |
| chloride-nplua nuj Environments | 316/316L los yog 2205 |
| Kub-kub Atmosphere | 321/347 ib |
| Muaj zog Acids / Phosphoric | 904l,250 7 |
| Food-Qib Hygiene Systems | 316L (Electropolished) |
| Pharmaceutical Systems | 316 hli / 316 hli |
Post lub sij hawm: May-06-2025