Ferralium 255 vs 2205: Qhov txawv tseem ceeb
Dab tsi yog qhov sib npaug ntawm Duplex 2205 raws li ASME cov qauv?
ASME sib npaug ntawm Duplex 2205 (UNS S31803 / S32205) feem ntau pom nyob rau hauv cov qauv xws li ASME SA-240 rau cov ntawv hlau, SA-182 (Qib F51 / F60) rau forgings, thiab SA-789 / SA-790 rau cov yeeb nkab steel, nrog rau cov khoom siv tshwj xeeb rau cov yeeb nkab. muaj pes tsawg leeg, paub txog nws tsis kam mus corrosion thiab nws cov neeg kho tshuab siab.
Ferralium 255 khoom yog dab tsi?
Ferralium 255 yog super duplex stainless hlau los ntawm Ferralium series. GNEE muaj cov khoom muag loj ntawm cov khoom nrov no rau koj xaiv. Nws tuaj yeem ua tiav rau hauv ntau yam duab, xws li daim hlau, coils, raj, tuav thiab xaim, tsim kom tau raws li cov kev xav tau ntawm cov roj, roj thiab tshuaj lom neeg kev lag luam. Ferralium 255 muaj zog ntau dua li lwm cov hlau tsis muaj steel thiab corrosion-resistant alloys. Yog xav paub ntxiv txog nws cov tshuaj muaj pes tsawg leeg thiab kuaj dawb, thov hu rau peb!
Ferralium 255 vs 2205: Qhov txawv tseem ceeb
Ferralium 255 yog super duplex stainless hlau uas muaj zog dua, zoo dua rau pitting thiab crevice corrosion, thiab superior abrasion thiab cavitation tsis kam tshaj tus qauv 2205 duplex steel, vim nws cov ntsiab lus alloy siab dua (tshwj xeeb tshaj yog tooj liab thiab nitrogen), ua rau nws zoo tagnrho rau cov dej hiav txwv los yog acidic heev. Lub caij no, 2205 muaj kev ua haujlwm zoo tshaj plaws ntawm lub hom phiaj duplex nrog lub zog siab thiab kev ntxhov siab corrosion ntawm tus nqi qis.
Kev sib piv tshuaj muaj pes tsawg leeg (wt%)
|
Element |
Ferralium 255 (UNS S32550) |
Duplex 2205 (UNS S31803 / S32205) |
|---|---|---|
|
Chromium (Cr) |
24.0 – 27.0% |
21.0 – 23.0% |
|
Nickel (Ni) |
4.5-6.5% |
4.5-6.5% |
|
Molybdenum (hli) |
2.9–3.9% |
2.5-3.5% yog ' |
|
Copper (Cu) |
1.5-2.5% yog ' |
(Tsis tseem ceeb) |
|
Nitrogen (N) |
0.10-0.25% |
0.08-0.20% |
|
Cov pa roj carbon (C) |
Tsawg dua lossis sib npaug li 0.04% |
Tsawg dua lossis sib npaug li 0.03% |
|
Manganese (Mn) |
Tsawg dua lossis sib npaug li 1.5% |
Tsawg dua lossis sib npaug li 2.0% |
|
Silicon (Yog) |
Tsawg dua lossis sib npaug li 1.0% |
Tsawg dua lossis sib npaug li 1.0% |
|
Hlau (Fe) |
So |
So |
Kev sib piv ntawm cov khoom siv kho tshuab
|
Khoom |
Ferralium 255 (Tswj) |
Duplex 2205 (Tswj) |
|---|---|---|
|
Yield zog (0.2% xeem) |
550-586 MPa (~ 80-85 ksi) |
Ntau dua lossis sib npaug ntawm 450-550 MPa (Ntau dua lossis sib npaug ntawm 65-80 ksi) |
|
Tensile zog (UTS) |
760-790 MPa (~ 110-115 ksi) |
~ 620-800 MPa (~ 90-116 ksi) |
|
Elongation (%) |
~ 25% |
Ntau dua lossis sib npaug li 25% |
|
Hardness (HB) |
220–270 HB |
Tsawg dua lossis sib npaug li 290 HB |
|
Kev cuam tshuam tsis kam |
Zoo nyob rau hauv chav tsev thiab tsis kub |
Hom rau duplex (~ tenacious) |
1. Ferralium 255 vs. Duplex 2205: Hardness
Ferralium 255 (UNS S32550) feem ntau muaj Brinell hardness ntawm 290–320 HB (los yog 28–32 HRC), me ntsis siab dua Duplex 2205 (UNS S31803 / S32205), uas muaj qhov siab tshaj plaws Brinell hardness ntawm 290 HRC (22–28) cov ntsiab lus.
2. Ferralium 255 vs. Duplex 2205: Corrosion kuj
Ferralium 255 nthuav tawm cov kev tiv thaiv corrosion zoo tshaj, nrog tus nqi PREN ntawm 38-41 (piv rau 32-36 rau 2205) thiab qhov tseem ceeb pitting kub (CPT) ntawm 50-60 degrees hauv 3% NaCl tov (piv rau 30-45 degrees rau 2205), ntaus nqi (4.3%). vs . 2.5–3.5%) thiab N (0.10–0.25% vs{18}}–0.20%).
3. Ferralium 255 vs. Duplex 2205: Lub zog thiab machinability
Ferralium 255 muaj lub zog siab dua (yield zog Ntau dua lossis sib npaug ntawm 550 MPa, tensile zog Ntau dua lossis sib npaug ntawm 760 MPa, piv rau Ntau dua lossis sib npaug li 450 MPa thiab Ntau dua lossis sib npaug rau 620 MPa feem rau 2205), tab sis qis dua machinability vim nws qhov kev ua haujlwm siab dua yog kwv yees li 25%.
4. Ferralium 255 vs. Duplex 2205: Daim ntawv thov
Ferralium 255 yog siv nyob rau hauv huab cua puag ncig uas yuav tsum tau ultra-siab thiab corrosion kuj (xws li cov khoom sib sib zog nqus dej, cov tshuaj chloride siab reactors), thaum 2205 yog ntau haum rau cov qauv duplex stainless hlau daim ntaub ntawv xws li tshav kub exchangers, siab hlab ntsha thiab marine lug.
5. Dab tsi yog qhov txawv ntawm 2205 thiab 2507 duplex stainless hlau?
Duplex stainless hlau 2507 (UNS S32750) txawv ntawm 2205 nyob rau hauv nws cov ntsiab lus alloy siab dua, ua rau PREN tus nqi siab dua ntawm Greater dua los yog sib npaug rau 40 (vs. 32-36), lub zog ntau dua ntawm Greater dua los yog sib npaug rau 550 MPa (vs. Greater dua los yog sib npaug rau pitting), qhov kub thiab txias ntawm qhov sib npaug ntawm 45. 3% NaCl tov yog kwv yees li 60–70℃vs . 30–45 degree), ua rau nws tsim nyog rau ntau xav tau kev kub siab / corrosive daim ntaub ntawv.
