Qhov txawv ntawm 2205 thiab 2507 yog dab tsi?
Jan 19, 2026
Tso lus
Thaum nws los txog rau cov hlau duplex, ntau tus neeg xa mus rau 2507 thiab 2205 hom. Ob daim hlau no muaj ntau yam kev siv, xws li kev lag luam chemical, roj, thiab roj, marine engineering, thiab lwm yam. Txawm hais tias ob daim ntawv hlau zoo sib xws, muaj qhov sib txawv ntawm lawv cov tshuaj muaj pes tsawg leeg, lub cev muaj zog, kev tiv thaiv corrosion, thiab cov xwm txheej siv tau. Kab lus no yuav tshawb txog cov yam ntxwv ntawm duplex 2507 vs 2205, txheeb xyuas qhov sib txawv ntawm lawv, thiab yuav ua li cas xaiv cov hlau tsim nyog rau kev siv tswv yim.
Qhov txawv ntawm 2205 thiab 2507 yog dab tsi?
Dab tsi yog SS 2205 cov khoom sib npaug?
SS 2205 (Duplex 2205) cov khoom sib npaug qhia nws cov khoom, feem ntau tau txheeb xyuas los ntawm nws tus lej UNS S31803 lossis S32205, European xaiv 1.4462, thiab ASTM qib zoo li A182 F51, A240, A790, thiab kev ua kom muaj zog zoo li UNS, A209 thiab siab zog. DIN 1.4462, thiab ASTM A182 F51 ncaj sib npaug.
Dab tsi yog Super Duplex 2507 Sib npaug?
Super Duplex 2507 (ib siab - zog, corrosion- resistant alloy) muaj ntau qhov sib npaug, tshwj xeeb tshaj yog UNS S32750 (North America) thiab EN 1.4410 (Tebchaws Europe), feem ntau paub los ntawm cov npe lag luam xws li SAF 2507, nrog cov khoom sib npaug ntawm ASTM A589 (nrog rau ASTM 2507). Cov npe no xa mus rau tib lub super duplex stainless hlau, uas yog nws cov chromium siab, molybdenum, thiab nitrogen cov ntsiab lus rau kev ua tau zoo nyob rau hauv ib puag ncig hnyav.
Qhov txawv ntawm 2205 thiab 2507 yog dab tsi?
Duplex 2205 yog tus qauv duplex stainless hlau, thaum Super Duplex 2507 yog qib siab dua - qib kev ua tau zoo, sib txawv hauv cov ntsiab lus alloying (ntau Cr, Mo, N hauv 2507) ua rau muaj zog ntau dua (yield zog ~ 800 MPa vs ~ 550 MPa) thiab zoo dua rau pitting thiab crevice corrosion.
Duplex 2205 vs 2507: Cov ntaub ntawv sib npaug
| Lub teb chaws / Standard | TIAB SA 2205 | TIAB SA 2507 | Sau ntawv |
|---|---|---|---|
| USA / ASTM | UNS S32205 / S31803 | UNS S32750 | Raws li ASTM A240 / A789 / A182 tus qauv |
| Teb chaws Europe / EN | TS EN 1.4462 | TS EN 1.4410 | Common European standard tooj |
| Lub teb chaws Yelemees / DIN | X2CrNiMoN22-5-3 | X2CrNiMoN25-7-4 | DIN tus qauv tsim |
| UK / BS | TIAB SA 32205 | TIAB SA 32750 | British standard sib npaug |
| Nyiv / JIS | SUS329J4L | SUS 32750 | Japanese Industrial Standard naj npawb |
| Tuam Tshoj / GB | 00Cr22Ni5Mo3N | 00Cr25Ni7Mo4N | GB/T 1220/GB/T 14976 |
Kev sib piv tshuaj lom neeg: 2205 vs 2507
| Duplex Steel Qib | C | Si | Mn | Cr | Ni | S | P | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| Duplex 2205 (S32205) | 0.030 | 1.00 | 2.00 | 21.0-23.0 | 4.5-6.5 | 0.020 | 0.030 | 2.5-3.5 | 014-0.20 |
| Super Duplex 2507 (S32750) | 0.030 | 0.80 | 1.20 | 24.0-26.0 | 6.0-8.0 | 0.020 | 0.035 | 3.0-5.0 | 0.24-0.32 |
Mechanical Performance
| Khoom | TIAB SA 2205 | Super Duplex 2507 |
|---|---|---|
| Yield zog (Rp0.2) | Ntau dua lossis sib npaug li 450 MPa | Ntau dua lossis sib npaug li 550 MPa |
| Tensile zog (Rm) | Ntau dua lossis sib npaug li 620 MPa | Ntau dua lossis sib npaug li 800 MPa |
| Elongation | Ntau dua lossis sib npaug li 25% | Ntau dua lossis sib npaug li 25% |
|
Hardness (HB) |
Tsawg dua lossis sib npaug li 290 | Tsawg dua lossis sib npaug li 310 |
Corrosion Resistance: 2205 vs 2507
| Khoom | TIAB SA 2205 | Super Duplex 2507 |
| PREN (Pitting Resistance) | ~34–36 | ~40–45 |
| Chloride Ib puag ncig kev ua haujlwm | Muaj zog | Exceptiona |
| Zoo tshaj rau | Kev siv tshuaj chloride nruab nrab & kev lag luam | Qhov hnyav offshore & marine tej yam kev mob |
Duplex 2205 ua tau zoo tshaj plaws nyob rau hauv ib puag ncig nrog cov tshuaj chloride nruab nrab thiab yog siv dav hauv cov txheej txheem tshuaj piping, cov khoom siv hauv hiav txwv, thiab cov khoom siv hluav taws xob. Super Duplex 2507, nrog nws cov PREN siab dua, ua tau zoo hauv kev sib sib zog nqus - hiav txwv, desalination, thiab cov ntawv thov kev ntxhov siab uas muaj kev hem thawj heev.
Mechanical Strength & Fabrication
Ob lub alloys pom muaj zog ntau dua piv rau cov qib austenitic ib txwm muaj xws li 316L. Duplex 2205 qhov muaj zog tawm los thiab lub zog tensile ua rau nws haum rau ntau yam qauv thiab siab -cov ntaub ntawv kabmob, thaum Super Duplex 2507 lub zog muaj zog tso cai rau cov qauv ntu nyias thiab txhim kho lub neej kev pab cuam qhov tseem ceeb tshaj plaws.
2205 vs 2507 Super stainless hlau: Nqi
Hais txog tus nqi, 2507 super duplex stainless hlau feem ntau yog 30-50% kim dua 2205, tab sis nws lub zog siab dua thiab corrosion kuj tuaj yeem txo tag nrho cov nqi ntawm lub neej los ntawm kev ua kom cov phab ntsa nyias nyias thiab siv lub neej ntev dua nyob rau hauv siab -chloride ib puag ncig.
2507 Duplex Stainless Steel Supplier
2507 duplex stainless hlau yog super duplex stainless hlau uas muaj ferrite thiab austenite. Gnee muaj ntau hom khoom: phaj, kav, tuav, xov hlau, coils, profiles, thiab lwm yam. Cov khoom muaj xws li seamless thiab welded kav. Gnee muaj ntau yam khoom, txhawb kev hloov kho, muaj nws tus kheej lub Hoobkas, muab ib qho kev pabcuam nres, thiab muab cov qauv dawb. Tiv tauj peb kom tau txais kev tsocai dawb!
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