304 stainless hlau muaj 18–20% chromium, 8–10.5% nickel, thiab tsawg dua 2% manganese. 201 stainless hlau muaj 16–18% chromium, 3.5–5.5% nickel, thiab siab 5–7.5% manganese. Nitrogen siab dua hauv 201 (txog li 0.25%) piv rau 304 (txog li 0.10%). Nickel siab hauv 304 ua rau muaj kev tiv thaiv corrosion ntau dua thiab cov qauv austenitic ruaj khov. Kev nce manganese thiab nitrogen hauv 201 ua rau muaj zog tab sis txo qhov kev tiv thaiv corrosion piv rau 304.
304 vs 201 Stainless hlau
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| Qib | Cr (%) | Ni (%) | Mn (%) | N (%) | C (%) |
| 304 | 18-20 | 8-10.5 | ≤2 | ≤0.10 | ≤0.08 |
| 201 | 16-18 | 3.5-5.5 | 5-7.5 | ≤0.25 | ≤0.15 |
Kev cuam tshuam ntawm cov khoom siv alloy rau cov khoom siv
Cov nickel ntau ntawm 304 ua kom muaj kev tiv thaiv xeb zoo dua, tshwj xeeb tshaj yog nyob rau hauv acidic lossis chloride raug, thiab weldability zoo dua. Cov chromium ntau tsim ib txheej oxide passive, tiv thaiv 304 los ntawm oxidation. Hauv 201, manganese thiab nitrogen counterbalance nickel txo qis, txo tus nqi tab sis kuj ua rau tsuas yog nruab nrab tiv thaiv xeb, tshwj xeeb tshaj yog nyob rau hauv noo noo lossis ntsev ib puag ncig. 304 ua tiav lub zog tensile nyob ib puag ncig 520 MPa, yield zog nyob ze 215 MPa, thiab elongation mus rau 50%. 201 muaj cov txiaj ntsig ntau dua (275 MPa), tensile (txog li 535 MPa), tab sis qis dua elongation (~ 45%), ua rau ntau brittleness.
Kev Sib Piv Txog Kev Ua Haujlwm ntawm Lub Tshuab
201 qhov muaj zog thiab lub zog tensile ua rau cov khoom siv nias lossis txias ua haujlwm tau ntev, tab sis kev ncua luv luv txo qhov sib sib zog nqus; cov kab nrib pleb yuav tshwm sim ntawm cov khoov nyuaj. 304 qhov muaj zog qis dua tab sis kev ua haujlwm siab dua txhawb nqa kev ua haujlwm nyuaj, kev sib txuas sib xws, thiab kev ua tiav ntawm qhov chaw zoo nkauj.
Kev Tiv Thaiv Kev Xebthiab Kev Tsim Nyog Rau Daim Ntawv Thov
Kev Tiv Thaiv Kev Xeb Hauv Ntau Qhov Chaw Sib Txawv
Cov hlau tsis xeb 304 ua tau zoo dua 201 hauv kev tiv thaiv xeb vim nws cov ntsiab lus nickel thiab chromium ntau dua - 8–10.5% Ni thiab 18–20% Cr piv rau 3.5–5.5% Ni thiab 16–18% Cr hauv 201. Hauv kev sim tshuaj tsuag ntsev, 201 tau tsim xeb xim av hauv 24 teev, thaum 304 tsis qhia txog kev hloov pauv tseem ceeb, txawm tias tom qab 72 teev, lees paub tias nws tsim nyog rau zaub mov, kev kho mob, thiab chaw nyob hauv dej hiav txwv. Cov hlau tsis xeb 201 tiv taus xeb hauv cov av noo tsawg, hauv tsev tab sis tsis ua haujlwm sai hauv cov chaw acidic, saline, lossis noo noo.
Cov Kev Siv thiab Cov Kev Cai Ua Haujlwm Ib Txwm Muaj
304 siv tau rau ntau yam kev siv uas xav tau kev ruaj khov thiab kev huv: cov khoom siv hauv chav ua noj ua haus, cov dab dej, cov tshuab ua zaub mov, thiab cov khoom siv kho mob (304 tiv taus qhov tawg thiab tswj tau qhov ci). 201 pom tias siv tau rau cov khoom siv rau cov neeg siv khoom, cov vaj huam sib luag kho kom zoo nkauj, cov tsev rau khoom siv, thiab cov qauv sab hauv uas qhov kev xav tau kho tshuab yog qhov nruab nrab thiab kev raug rau cov khoom corrosive yog qhov tsawg heev.
Kev Pheej Hmoo ntawm Kev Txheeb Xyuas Tsis Tseeb hauv Kev Tsim Khoom thiab Kev Muab Khoom
Kev xaiv qib stainless hlau tsis raug ua rau cov khoom tsis ua haujlwm sai. Qib 304 cov ntsiab lus nickel thiab chromium ntau dua ua kom muaj kev tiv thaiv corrosion zoo dua thiab kev ua haujlwm zoo. Yog tias 201 raug hloov rau 304, tshwj xeeb tshaj yog hauv cov khoom noj, kev kho mob, lossis kev siv hauv dej hiav txwv, xeb, pitting, thiab kev puas tsuaj ntawm cov qauv tshwm sim. Cov lus thov warranty thiab kev nplua rau kev ua raws li txoj cai tshwm sim los ntawm kev hloov pauv, cuam tshuam rau cov chaw tsim khoom thiab cov neeg muag khoom. Cov hlau cuav thiab cov ntawv cim tsis raug yog qhov tshwm sim hauv cov saw hlau xa khoom sai, tsim kom muaj kev thov ceev ceev rau kev txheeb xyuas alloy tsis puas tsuaj, meej.
Cov Txheej Txheem Txheeb Xyuas Ib Txwm Muaj
Kev txheeb xyuas tes yog nyob ntawm kev teb magnetic thiab kev sim tshuaj lom neeg. Qib 304, nrog cov ntsiab lus nickel ntau dua, yog tsawg dua magnetic dua li 201. Txawm li cas los xij, kev ua haujlwm txias lossis cov hlau nplaum seem ua rau txoj kev no tsis txhim khu kev qha. Kev sim acid poob qhia tias muaj chromium, tab sis kev txhais lus tshwm sim yog subjective thiab tsis sib xws. Ob txoj kev ua tsis tau qhov sib txawv ntawm cov khoom sib xyaw ua ke lossis lav qhov tseeb thaum cov khoom sib xyaw ua ke ze lossis cov chaw muaj kuab paug.
Kev daws teeb meem siab heev: XRF Material Analyzer rau Stainless Steel Authentication
XRF Alloy Analyzer Ua Haujlwm Li Cas
X-ray fluorescence (XRF) tso tawm cov X-rays tseem ceeb rau ntawm cov qauv hlau tsis xeb, ua rau cov khoom sib xyaw ua ke fluoresce ntawm cov zog siab tshaj plaws ntawm cov khoom. Lub tshuab tshuaj ntsuam xyuas ntes cov cim no thiab txheeb xyuas cov ntsiab lus sib piv ntawm cov khoom sib xyaw tseem ceeb, suav nrog chromium, nickel, manganese, nitrogen, thiab hlau. Kev tshuaj ntsuam tag nrho xav tau tsawg dua30 vib nas this rau ib qho qauv, tsis muaj kev puas tsuaj kiag li, thiab tsis hloov pauv cov qauv lub cev lossis qhov chaw ntawm daim ntawv xeem.
Cov Nta thiab Cov Txiaj Ntsig of Lonnmeter XRF Alloy Analyzer
Lub cuab yeej siv roj teeb, tsim los nqa tau yooj yim ua kom muaj kev ua haujlwm hauv thaj chaw thiab hauv cov nroj tsuag. Nws lub vijtsam kov txhawb nqa kev ua haujlwm sai thiab cov ntawv qhia tshwj xeeb, luam tawm tau. Kev tshuaj xyuas tau ua ncaj qha rau ntawm cov khoom khov kho, ua rau muaj kev tshuaj xyuas tas mus li, muaj txiaj ntsig zoo. Lonnmeter qhov kev kuaj pom tseeb (<±0.2% rau cov ntsiab lus tseem ceeb) ua tau zoo dua li cov txheej txheem ib txwm muaj xws li kev tshuaj ntsuam hlau nplaum thiab kev sim qhov chaw, uas feem ntau ua rau cov qib tsis raug thaum cov qib manganese lossis nitrogen sib txawv.
Cov Lus Qhia Txog Tus Nqi Rau Cov Neeg Siv Khoom Siv Tshaj Lij
Kev txheeb xyuas qib pawg thiab kev tshaj tawm tam sim ntawd txo cov voj voog tshuaj xyuas ntau dua 60%. Kev khaws cov ntaub ntawv digital nrog kev taug qab cov qauv tshwj xeeb txhim kho kev taug qab rau kev tshuaj xyuas thiab kev ua raws li cov neeg xa khoom. Kev txheeb xyuas cov hlau sib xyaw ua ke tiv thaiv kev tsis sib haum xeeb ntawm kev lees paub thiab kev ua tsis tiav ntawm kev ua haujlwm tom qab.
Thov Kev Hais Nqe thiab Kev Sab Laj Nrog Kws Tshaj Lij
Tiv tauj kom tau txais kev qhia tshwj xeeb thiab kev ntsuam xyuas kev siv tshuab ntawm Lonnmeter XRF Alloy Analyzer.
Cov Lus Nug Feem Ntau (FAQs)
Cov khoom sib xyaw ua ke cuam tshuam li cas rau kev ua haujlwm ntawm cov hlau tsis xeb?
Cov nickel ntau dua hauv 304 ua rau cov qauv me me ruaj khov, txhim kho kev ua kom zoo nkauj, kev ywj pheej, thiab kev tiv taus cov tshuaj lom neeg hnyav. Hauv 201, kev nce manganese thiab nitrogen hloov pauv ib feem nickel, ua rau lub zog thiab qhov nyuaj nce ntxiv tab sis txo qis kev tiv taus xeb. Cov ntsiab lus chromium siab dua 18% ntxiv ua rau 304 ruaj khov tiv thaiv kev oxidation, teeb tsa nws sib txawv ntawm 201 rau kev siv hnyav.
Cov ntawv thov twg tau txais txiaj ntsig zoo tshaj plaws los ntawm kev txheeb xyuas qib kom raug?
Kev tsim kho, cov khoom siv ua zaub mov, cov khoom siv kho mob, thiab cov chaw tsim khoom xav tau kev txheeb xyuas qib kom ntseeg tau tias ua raws li txoj cai, zam kev thov lav, thiab lav kev nyab xeeb thaum kawg. Kev xaiv qib kom raug yuav ua rau tus nqi siv tau ntev dua, tshwj xeeb tshaj yog nyob rau hauv cov chaw uas muaj kev xeb lossis kev huv.
Lub sijhawm tshaj tawm: Lub Ob Hlis-26-2026
