Cov khoom siv F316 yog dab tsi?
F316 (UNFAL S31600) Puas yog Austenitic Stainless hlau muaj {% MolyBdenum desonfosion vs {} tus qauv 304 / 304L, tshwj xeeb yog tiv thaiv:
- Chlorides (Seasaterater, Brine)
- Sulfuric / phosphoric acids
- Pitting / crevice corrosion
F316 cov yeeb nkab cov yeeb nkab ua raws cov astm A403 thiab cov qauv nyob sab nrauv ASME B16.9 / b 16.11.
Vim li cas thiaj xaiv F316 cov yeeb nkab fittings?
|
Ntiag tug |
F316 Kom Zoo Dua |
Daim Ntawv Thov Kev Lag Luam |
|
Corrosion Kuj |
{{02-3% Mo boosts pren① rau 24.5+ |
Dej hiav txwv cua txias, desalination zaub |
|
High-temp Zog |
Khaws lub zog rau 870℃(1600℃f) |
Kev Hloov Piping Piping, Tso Tshuab |
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Qhov xwm txheej |
Zoo heev Weldability (Tig / Mig / pom) |
Kev cai manifolds, nplua modules |
|
Tus Nqi Muaj Zog |
{{020-30} Tsis muaj tus pheej yig dua li Duplex / Super-Austenitic alloys |
Tshuaj Lom Zem, Khoom Noj & Lub Tshuaj |
Kev Ua Tshwj Xeeb
Muaj pes tsawg leeg & cov khoom siv mechaurical
|
Lub ntsiab |
Cr |
Ni |
Mo |
C (max) |
Paib lub zog |
Lub zog tensile |
|
% Ntau |
16-18 |
10-14 |
2-3 |
0.08 |
Ntau dua los yog sib npaug rau 30 ksi (205 mpa) |
Ntau dua los yog sib npaug rau 75 ksi (515 MPA) |
Siab-ntsuas kub
|
Yeeb nkab loj |
Sch 40s @ 100 degree |
SCH 80s @ 200 degree |
Max siab (Ansi 300 #) |
|
2" |
290 PSI |
750 psi |
720 psi @ 38 degree |
F316 vs .} sib tw alloys
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Hlau |
Mo cov ntsiab lus |
Tus loj li txiv plig |
Chloride Txwv |
Tus nqi VS F316 |
|
F316 |
2-3% |
24.5 |
500 PPM |
Lub hauv paus |
|
F304 |
0% |
18.5 |
200 ppm |
15% qis dua |
|
Duplex 2205 |
3-3.5% |
35+ |
5, 000 ppm |
40% Siab dua |
|
Alloy 625 |
8-10% |
50+ |
Txwv tsis pub |
300% ntau dua |
F316 vs . F316L: uas xaiv?
- F316L (Uncut S31603) muaj tsawg dua lossis sib npaug rau 0.03% carbon - tseem ceeb rau:
- Welded assemblies >400℃(tiv thaiv carbide nag lossis
- Oxalic acid / caustic pab
- Qauv F316 nyiam rau:
- High-temperature strength (>500 degree)
- Tsis-welded fittings (flanges, xov couplings)
Cov FAQ
Q: Can f316 fittings kov dej hiav txwv?
A: Yes, up to 30°C with flow >1 {.} 5 m / s . rau cov kev pab cuam / loj heev, txhim kho rau super duplex.
Q: Puas yog f316 fittings sib nqus?
A: Tsawg tsawg (permeability<1.02) due to austenitic structure. Cold working may increase magnetism.
Q: Dab tsi yog cov hmoov txhuas rau kev cai F316 fittings yog dab tsi?
A: {{4-8 lub lis piam rau cov tsis muaj ntau thiab tsawg; Qhia kom meej txog NDE yuav tsum tau (RT / UT / PT) upfront.
