Yog tias koj tab tom nrhiav rauHaum rau qib stainless hlauRau cov cua sov kub, koj yuav tau ntsib316L (1.440)thiab316 / 1.4401Cov.
Nkawd ob leeg yog tsev neeg ntawmAustenitic stainless hlau nrog molybdenum, tab sis lawv txawv nyob rau hauvCov ntsiab lus carbon cov ntsiab lus, kev ua haujlwm tshuab tsis taus thiab tus cwj pwm ntawm cov kub, cov ntsiab lus uas ncaj qha rau covKev ua tau zoo thiab tus nqiHauv kev tsim cov hlab ntsha siab.
Siv rau hauv cov thawv ntsuas kub
316 / 1.440 tau siv thaum ntau cov neeg kho tshuab ua tsis kam ntawm kev nce siab kub yog qhov yuav tsum tau (txog ~ 550 degree).
316L / 1.440 yog feem ntau haum rau welded qauv lossis cov ntawv thov siab kub ntawm qhov chaw uas muaj kev pheej hmoo ntawm kev pheej hmoo ntawm kev nkag siab corrosion.
Cov lus tseem ceeb ntawm cov lus dag hauv carbon:
316H (1.4401): mayor contenido de carbono → mayor resistencia a >500 degrees.
316L (1.440): Cov ntsiab lus muaj cov pa roj carbon tsawg → Tiv thaiv kev sib tshuam hauv kev txhim kho tom qab vuam lossis thermal kis.
Kev sib piv Kev Ntsuas: 316L / 1.4404 vs . 316 / 1.4401
| Cov cuab yeej / qib | 316L / 1.4404 | 316 / 1.4401 |
|---|---|---|
| Txoj cai | ASTM A240 / EN 10088 | ASTM A240 / EN 10088 |
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.03% | 0.04-0.10% |
| Npib tsib caug (ni) | 10.0-13.0% | 10.0-13.0% |
| Chromium (cr) | 16.0-18.0% | 16.0-18.0% |
| Molybdenum (mo) | 2.0-2.5% | 2.0-2.5% |
| Tensile lub zog (mpa) | 485 min | 515 min |
| Yield zog (mpa) | 170 min | 205 min |
| Qhov siab tshaj plaws kev pab kub | ~ 450 degrees | ~ 550 degrees |
| Cov Duab Uas Tsis Txaus | Chev, ntawv, phaj, raj | Phaj, Yeeb Nkab, Fittings |
Cov Kub Kub Kuj
316 / 1.4401 Muaj cov khoom siv zoo dua li 550 degrees, zoo tagnrho rau boilers, kev hloov pauv cua sov thiab cov hlab ntsha raug hluav taws xob.
316L / 1.440, nrog nws cov ntsiab lus carbon qis, yog nyiam nyob rau hauv welded qauv uas yuav tsum tau corrosion tawm tsam tom qab cov ntaub pua chaw thiab raug rau kub<450°C.
Corrosion Kuj
316L / 1.4404: Kev tiv thaiv zoo heev rau intergranular corrosion, txo txoj kev pheej hmoo ntawm carbide nag lossis daus thaum lub sij hawm vuam.
316 / 1.4401: Zoo tsis kam nyob rau hauv oxidizing thiab me ntsis corrosive ib puag ncig, txawm hais tias me ntsis tsis tshua tiv taus corrosion hauv ib puag ncig nrog chlorides.
Tus nqi thiab tsim khoom
316L / 1.4404: yooj yim dua los ua thiab weld, txo cov nqi hauv nruab nrab thiab tsawg daim ntawv thov.
316h / 1.4401: Xav tau cov kev kho kom sov thiab kev tsim hluav taws xob kev tsim hluav taws xob, uas tuaj yeem nce me ntsis nws tus nqi.
Cov ntawv thov los ntawm kev lag luam
| Kev ua hauj lwm | 316L / 1.4404 | 316 / 1.4401 |
|---|---|---|
| Kev tsim khoom ntawm cov nkoj siab | Welded tso tsheb hlau luam, cryogenic nkoj | Kev kub siab thiab cov hlab kub kub |
| Kev Lag Luam | Acid Cov Kav, Evapators | Kev hloov kho kom sov, rov ua dua |
| Lub Zog Loj | Condensers, Tsawg Tsawg Kub Cua Sov | Superheaters, boilers |
| Kws muag khoom & khoom noj | Huv Si Cia Khoom, Kav Kav Dej | Tsis nquag siv (cov pa roj carbon ntau) |
| Roj & Roj | Cov khoom siv offshore, Separators | Refinery kab thiab reactors |
Mov los ntawm gnee steel
Gnee Steel muaj 316L (1.440) thiab 316h / 1.4401 hauv cov ntawv, nruj ua raws li A240, ASME SA240 thiab EN 10088 tus qauv.
✅ Cov khoom lag luam muaj: ntau dua 30,000 tons ntawm stainless hlau, suav nrog cov qib kub siab
✅ Ua tiav kev xeem: PMI thiab kev ntsuam xyuas cov neeg kho tshuab nrog cov ntawv ceeb toom muaj
✅ Ntawv pov thawj: ISO 9001 / SGS / BV
✅ Kev Pabcuam Kev Cai: Txiav, Polishing thiab Ntug Tiav
Ntim, them nyiaj thiab xa khoom
Ntim: pallets lossis thawv ntoo, tiv thaiv kev thaiv thiab kev tiv thaiv kaum
Cov ntsiab lus them nqi: T / T (30% tso nyiaj + 70}}}}}} ua ntej ua zaub mov xa tuaj), l / c thaum pom
Kev Xa Khoom: 7-15 hnub ua haujlwm nyob ntawm qhov kev txiav txim loj
Kev Thauj: Hiav Txwv, huab cua lossis tsheb ciav hlau nrog kev tsis yooj yim (FOB, CIF, DDP)
