F51 vs. F53 vs. F55 Stainless hlau: Qhov txawv tseem ceeb
Tso lus
Yog tias koj tab tom nrhiav duplex stainless hlau kav, daim hlau, fittings, los yog flanges rau roj & roj, tshuaj ua, offshore, los yog marine tej yaam num, to taub qhov sib txawv ntawm F51, F53, thiab F55 stainless hlau yog ib qho tseem ceeb rau kev ruaj ntseg corrosion, mechanical kev ua tau zoo, thiab ntev - lub sij hawm kev pab cuam kev ntseeg tau.
Txawm hais tias tag nrho peb qib yog cov tsev neeg duplex stainless hlau, lawv cov alloy muaj pes tsawg leeg, corrosion kuj, PREN tus nqi, txhua yam khoom, thiab daim ntawv thov teb txawv.
F51 (UNS S31803 / S32205): Txheem Duplex Stainless Hlau
F53 (UNS S32750): Super Duplex Stainless Hlau
F55 (UNS S32760): Super Duplex Stainless Hlau nrog txhim kho corrosion kuj
Kev xaiv kom raug yog nyob ntawm cov tshuaj chloride concentration, kub, siab, mechanical xav tau, thiab project qauv.
F51 vs F53 vs F55 Qib sib npaug
| Feature | F51 (Dubplex) | F53 (Super Duplex) | F55 (Super Duplex) |
| UNS npe | S31803 / S32205 | S32750 | S32760 |
| Lub Npe | Alloy 2205 | TIAB SA 2507 | Zeron 100 |
| EN/DIN | 1.4462 | 1.4410 | 1.4501 |
| ASTM Txuj | A182 (Tshooj) | A182 (Tshooj) | A182 (Tshooj) |
| Microstructure | 50% Ferrite / 50% Austenite | 50% Ferrite / 50% Austenite | 50% Ferrite / 50% Austenite |
F51 vs. F53 vs. F55 Stainless hlau: Tshuaj muaj pes tsawg leeg
| Lub ntsiab | F51 (S32205) | F53 (S32750) | F55 (S32760) |
|---|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.030% |
| Chromium (Cr) | 22% | 24–26% | 24–26% |
| Nickel (Ni) | 4.5–6.5% | 6–8% | 6–8% |
| Molybdenum (hli) | 3.0–3.5% | 3–5% | 3–4% |
| Nitrogen (N) | 0.14–0.20% | 0.24–0.32% | 0.20–0.30% |
| Copper (Cu) | - | - | 0.5–1.0% |
| Tungsten (W) | - | - | 0.5–1.0% |
PREN Tus nqi sib piv (Pitting Resistance)
PREN (Pitting Resistance Equivalent Number) feem ntau yog siv los sib piv duplex stainless hlau corrosion kuj.
Formula:
PREN=Cr + 3.3 × Mo + 16 × N
| Qib | Hom PREN Tus Nqi | Corrosion Resistance |
|---|---|---|
| F51 | 35–38 | Zoo |
| F53 | Ntau dua lossis sib npaug li 40 | Zoo heev |
| F55 | Ntau dua lossis sib npaug li 40 | Zoo heev + |
F51 vs. F53 vs. F55 Stainless hlau: Mechanical Properties
| Khoom | F51 | F53 | F55 |
|---|---|---|---|
| Tensile zog | Ntau dua lossis sib npaug li 620 MPa | Ntau dua lossis sib npaug li 795 MPa | Ntau dua lossis sib npaug li 800 MPa |
| Yield zog | Ntau dua lossis sib npaug li 450 MPa | Ntau dua lossis sib npaug li 550 MPa | Ntau dua lossis sib npaug li 550 MPa |
| Elongation | Ntau dua lossis sib npaug li 25% | Ntau dua lossis sib npaug li 15% | Ntau dua lossis sib npaug li 15% |
| Hardness | Tsawg dua lossis sib npaug rau 310 HB | Tsawg dua lossis sib npaug rau 310 HB | Tsawg dua lossis sib npaug rau 310 HB |
F51 vs. F53 vs. F55 Stainless hlau: Qib twg cov neeg yuav khoom xaiv?
| Qib | Cov ntawv thov pom zoo |
|---|---|
| F51 (UNS S31803) | Cov khoom siv tshuaj ua haujlwm, cov hlab ntsha siab, cov khoom siv hluav taws xob, cov kav dej, cov qauv hauv ntug dej hiav txwv |
| F53 (UNS S32750) | Offshore platforms, seawater txias tshuab, desalination nroj tsuag, roj & roj ntau lawm khoom |
| F55 (UNS S32760) | Cov khoom siv roj qaub, tshuaj reactors, siab -cov kav dej xeb, cov ntaub ntawv thiab cov ntawv tshuaj dawb |
ASTM A182 F51, F53, thiab F55 Stainless hlau lwm tus neeg thiab manufacturers
GNEE muab ASTM A182 F51, F53, thiab F55 duplex stainless hlau cov ntaub ntawv- npog cov qib xws li UNS S31803/S32205, UNS S32750, thiab UNS S32760-thiab muaj cov phaj, kav dej, forgings, flanges, kev cai yeeb nkab fittings, thiab cov kev pab cuam tshwj xeeb. Kev tsim khoom nruj me ntsis ua raws li cov qauv thoob ntiaj teb xws li ASTM A240, ASTM A790, thiab ASTM A182. Peb muab EN 10204 3.1/3.2 cov ntaub ntawv pov thawj, tshuaj lom neeg muaj pes tsawg leeg, tshuaj xyuas khoom vaj khoom tsev, PMI (Positive Material Identification), thiab NDT cov ntaub ntawv (UT/RT), kom ntseeg tau tias tag nrho cov ntaub ntawv traceability rau txhua pawg.
Khoom Specification Muaj
| Yam khoom | Txuj | Size Range (Tswj) | Qhov xwm txheej |
|---|---|---|---|
| Seamless Yeeb Nkab | ASTM A790 / ASME SA790 Cov Lus Qhia | OD 6 mm-630 mm | Tshuaj Annealed & Pickled |
| Welded yeeb nkab | ASTM A790 Cov Lus Qhia Tshwj Xeeb | OD 219mm-3000mm | Kev kho cua sov |
| Thaum tshav kub kub Exchanger Tube | ASTM A789 Cov Lus Qhia Tshwj Xeeb | OD 6 mm-114 mm | Bright Annealed / Pickled |
| Phaj & Ntawv | ASTM A240 / ASME SA240 / ASTM A240 / ASTM A240 / ASME SA240 / ASTM A240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASTM A240 / ASME SA240 / ASME SA240 / ASTM A240 / ASME SA240) | Thickness 0.5-100 hli | HR / 2B / Pickled |
| Forged Fittings & Flanges | ASTM A182, ASTM A182, ASTM A182 | Customized | Kev daws Annealed |
Cov Ntaub Ntawv Zoo Muaj: F51 / F53 / F55 duplex stainless hlau cov khoom tuaj yeem muab nrog EN 10204 3.1 Cov Ntawv Pov Thawj Cov Khoom Siv, PMI cov ntaub ntawv soj ntsuam, cov ntaub ntawv soj ntsuam qhov ntev, thiab thib peb - cov ntaub ntawv tshuaj xyuas tog xws li SGS / BV / TUV raws li qhov yuav tsum tau ua.
Kev Tswj Xyuas Zoo
Rau export tej yaam num, txhim khu kev qha cov neeg muag khoom yuav tsum muab:
| Cov ntaub ntawv | Lub hom phiaj |
|---|---|
| EN 10204 3.1 MTC | Khoom siv traceability |
| Tshuaj ntsuam xyuas | Txheeb xyuas cov ntsiab lus Cr/Ni/Mo/N |
| Mechanical Test Report | Kev txheeb xyuas lub zog |
| PMI Report | Alloy ID nkag mus |
| Hydrostatic Test Report | Kev tiv thaiv dej |
| Thib peb-Kev soj ntsuam tog | SGS/BV/TUV verification |
FAQ
Dab tsi yog qhov txawv ntawm F51 thiab F53 stainless hlau?
F51 yog duplex stainless hlau (UNS S32205), thaum F53 yog super duplex stainless hlau (UNS S32750). F53 muaj ntau dua chromium, molybdenum, thiab nitrogen, muab ntau dua PREN qhov tseem ceeb thiab zoo chloride corrosion kuj.
Puas yog F53 zoo dua F51 stainless hlau?
Rau dej hiav txwv, ntug dej hiav txwv, thiab chloride- thaj chaw nplua nuj, F53 muab kev tiv thaiv corrosion zoo dua. Rau cov ntawv thov kev lag luam dav dav, F51 feem ntau pheej yig dua.
Dab tsi yog F55 stainless hlau sib npaug?
F55 stainless hlau yog sib npaug rau UNS S32760 thiab EN 1.4501 Super Duplex Stainless Hlau.
Dab tsi yog qhov txawv ntawm F53 thiab F55 stainless hlau?
Ob leeg yog super duplex stainless hlau. F55 muaj tooj liab thiab tungsten ntxiv, txhim kho kev tiv thaiv rau qee qhov chaw muaj tshuaj lom neeg thiab cov kev pabcuam qaub.
Qhov twg muaj zog dua: duplex lossis stainless hlau 316?
Duplex qib xws li F51 / F53 / F55 feem ntau muaj lub zog muaj zog dua li 316 stainless hlau, feem ntau nyob ib ncig ntawm 550 MPa lossis siab dua piv nrog kwv yees li 205 MPa rau 316L.
F53 stainless hlau puas tuaj yeem siv hauv dej hiav txwv?
Yog lawm. F53 (UNS S32750) yog dav siv rau seawater systems vim nws PREN Ntau dua los yog sib npaug rau 40 thiab zoo heev tiv thaiv chloride pitting thiab crevice corrosion.
