ASTM A312 stainless hlau kavyog dav siv nyob rau hauv tshuaj, petrochemical, marine, zaub mov ua, thiab kev tsim kho kev lag luam. Ntawm cov qib feem ntau yogTP304 thiab TP316, txhua qhov muab tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab kev tiv thaiv corrosion. Kev xaiv cov qhab nia raug yog qhov tseem ceeb rau kev ua haujlwm ntev -, kev siv nyiaj txiag, thiab kev nyab xeeb hauv cov kav dej.
Qhov txawv tseem ceeb ntawm TP304 thiab TP316
| Feature | TIAB SA 304 | TIAB SA 316 |
|---|---|---|
| Tshuaj muaj pes tsawg leeg | 18-20% Cr, 8-10.5% Ni, C Tsawg dua lossis sib npaug li 0.08% | 16-18% Cr, 10-14% Ni, 2-3% Mo, C Tsawg dua lossis sib npaug 0.08% |
| Corrosion Resistance | Resistant mus rau kev corrosion nyob rau hauv ib puag ncig me me | Superior tiv thaiv chlorides, acids, thiab marine ib puag ncig vim molybdenum |
| Weldability | Zoo heev, tej zaum yuav xav tau kev tshaj tawm -weld annealing rau cov ntawv thov tseem ceeb | Zoo heev, tsis tshua muaj kev cuam tshuam rau pitting hauv chloride ib puag ncig |
| Daim ntawv thov | Kev kho dej, kev ua zaub mov, cov kav dej tshuaj lom neeg | Cov khoom siv hauv hiav txwv, kev ua tshuaj lom neeg, roj & roj kav dej, chloride- thaj chaw nplua nuj |
| Nqe | Tus nqi qis dua piv rau TP316 | Tus nqi siab dua vim cov ntsiab lus molybdenum |
| Mechanical Properties | Tensile Strength 515-720 MPa, Yield Strength Ntau dua los yog sib npaug rau 205 MPa | Zoo sib xws mechanical zog, me ntsis zoo pitting kuj |
Kev sib piv Corrosion Resistance
Qauv TSIS MUAJ: TP304Haum rau cov kab mob corrosion, nrog rau cov kua qaub me me thiab cov kav dej.
TP 316:Zoo tagnrho rau chloride- thaj chaw nplua nuj xws li dej hiav txwv, tshuaj tsuag ntsev, thiab qee yam tshuaj. Qhov sib ntxiv ntawm molybdenum txhim kho pitting thiab crevice corrosion kuj.
Weldability thiab Fabrication
Ob leeg TP304 thiab TP316 yog ib qho yooj yim rau vuam, txiav, thiab daim ntawv.
TP316 yog nyiam nyob rau hauv welded systems raug rau corrosive ib puag ncig kom txo tau txoj kev pheej hmoo ntawm pitting los yog rhiab heev.
Tsawg-carbon variants (TP304L thiab TP316L) ntxiv txhim khu kev weldability thiab txo intergranular corrosion nyob rau hauv siab - kub kev pab cuam.
Cov ntawv thov siv
TP304 Tube:
Cov kav dej thiab cov kav dej khib nyiab
Kev ua zaub mov thiab dej haus
General industrial piping
HVAC systems
TP316 Tube:
Marine thiab offshore structures
Roj & roj pipelines raug chlorides
Tshuaj ua cov nroj tsuag
Pharmaceutical and sanitary systems nyob rau hauv ib puag ncig chloride
Cov ntsiab lus
| Yam | Kev pom zoo |
|---|---|
| Lub hom phiaj dav dav, me ntsis Corrosion | TIAB SA 304 |
| Chloride los yog Marine Ib puag ncig | TIAB SA 316 |
| Cov nyiaj txiag-Cov ntawv thov nco ntsoov | TIAB SA 304 |
| High-Kev xeb, Siab-Kev ua tau zoo | TIAB SA 316 |
Kev xaiv ntawm TP304 thiab TP316 nyob ntawm qhov chaw ua haujlwm, raug cov tshuaj chlorides lossis tshuaj lom neeg, thiab kev siv nyiaj txiag. Rau lub sijhawm ntev -lub sijhawm ua haujlwm ntev hauv cov xwm txheej hnyav, TP316 lossis TP316L yog qhov kev xaiv zoo dua, thaum TP304 tseem pheej yig thiab txhim khu kev qha rau kev siv dav dav.
FAQ
Q1: Dab tsi yog qhov txawv ntawm TP304 thiab TP316 stainless hlau kav?
A1: Qhov sib txawv tseem ceeb yog qhov sib ntxiv ntawm molybdenum (2-3%) hauv TP316. Cov ntsiab lus no txhim kho kev tiv thaiv corrosion, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj chloride- nplua nuj ib puag ncig xws li dej hiav txwv lossis cov chaw ua tshuaj.
Q2: Qib twg muaj kev tiv thaiv corrosion zoo dua, TP304 lossis TP316?
A2: TP316 muab kev tiv thaiv corrosion zoo dua li TP304, tshwj xeeb tshaj yog tiv thaiv chlorides, dej ntsev, thiab qee cov kua qaub. TP304 ua tau zoo nyob rau hauv dav atmospheric thiab me me kev lag luam ib puag ncig.
Q3: Vim li cas TP316 kim dua TP304?
A3: TP316 muaj molybdenum thiab ntau dua nickel cov ntsiab lus, uas ua rau cov nqi raw khoom nce. Qhov no ua rau TP316 stainless hlau kav feem ntau kim dua TP304.
Q4: Cov kav dej TP304 puas tuaj yeem siv rau hauv thaj chaw marine?
A4: TP304 tsis zoo rau lub sijhawm ntev - raug dej hiav txwv lossis chloride- thaj chaw nplua nuj vim nws yuav raug kev txom nyem los ntawm pitting corrosion. TP316 yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov no.
Q5: Puas yog cov khoom siv kho tshuab ntawm TP304 thiab TP316 zoo sib xws?
A5: Yog. Ob qib muaj zog tensile zoo sib xws, yield zog, thiab ductility. Lub ntsiab sib txawv yog nyob rau hauv corrosion kuj tsis yog txhua yam kev ua tau zoo.
Q6: Qib twg yooj yim dua rau vuam, TP304 lossis TP316?
A6: Ob qib muab kev zoo weldability. Txawm li cas los xij, qis- carbon versions xws li TP304L thiab TP316L feem ntau nyiam rau cov tshuab welded vim lawv txo qhov kev pheej hmoo ntawm kev sib tsoo.
Q7: Dab tsi kev lag luam feem ntau siv TP304 stainless hlau kav?
A7: TP304 cov kav dej tau siv dav hauv kev ua zaub mov, kev kho dej, cov kav dej dav dav, HVAC systems, thiab kev tsim kho.
Q8: Qhov twg yog TP316 stainless hlau kav feem ntau siv?
A8: Cov kav dej TP316 feem ntau yog siv rau hauv cov khoom siv hauv hiav txwv, cov chaw ua tshuaj lom neeg, cov dej hiav txwv thiab cov roj av, cov chaw tsim tshuaj, thiab ib puag ncig raug cov tshuaj chlorides.
Q9: Puas yog TP304 thiab TP316 cov kav dej muaj nyob rau hauv ob qho tib si seamless thiab welded daim ntawv?
A9: Yog. ASTM A312 qhia txog ob qho tib si seamless thiab welded stainless hlau kav rau TP304 thiab TP316 qib, nyob ntawm seb cov ntawv thov thiab kev ntsuas siab.
Q10: Kuv yuav xaiv li cas ntawm TP304 thiab TP316 stainless hlau kav?
A10: Kev xaiv nyob ntawm qhov chaw ua haujlwm. TP304 yog qhov tsim nyog rau kev siv dav dav - lub hom phiaj kev siv nrog qhov nruab nrab corrosion raug, thaum TP316 raug pom zoo rau cov tshuaj chloride- nplua nuj, dej hiav txwv, los yog tshuaj lom neeg ib puag ncig.
