Dab tsi yog qhov sib txawv ntawm 1.4410 thiab 1.4547 stainless hlau?
Jul 29, 2025
Tso lus
Thaum xaiv cov hlau tsis xeb rau qhov chaw hnyav xws li cov tub rog hnyav xws li cov ntaub ntawv xaiv, lossis 1.4547) thiab thaj chaw xaiv ntawm N02750) thiab 1.4547) thiab cov chaw xaiv ntawm cov nyiaj no hu ua lawv txoj kev xaiv corrosion. Tab sis qhov twg koj yuav tsum xaiv?
Kab lus no tsoo qhov sib txawv ntawm 1.4410 thiab 1.4547 stainless hlau los pab koj ua qhov kev txiav txim siab paub.
Dab tsi yog qhov sib txawv ntawm 1.4410 thiab 1.4547 stainless hlau?
1.4410 Cov Hlau Stainless (Super Duplex)
Lub hom phiaj: Rau 1.4410 / uns s32750 / ASTM A240 / A182
Ntaus: Super Duplex Stainless Hlau
Lub tsev: Dual -}} вustenite + ferrite)
Cov Nta Tseem Ceeb:
Lub zog heev (txog 800 MPa tensile lub zog)
Kev tiv thaiv zoo heev rau pitting, crevice corrosion, thiab kev nyuaj siab corrosion tawg
Pren ntau dua los yog sib npaug rau 40 (pitting tiv taus tus lej)
Qhov zoo tagnrho rau kev txhoj puab heev chloride -} muaj ib puag ncig
Cov Kev Siv Cov Ntawv Siv:
Offshore platforms, cov cuab yeej muaj npe, kev hloov cua sov, tshuaj ntsuam ntawm cov nroj tsuag, cov hlab ntsha siab.
1.4547 stainless hlau (Super Austenitic)
Lub hom phiaj: En 1.4547 / Tsis yog N08925 / Astm A240 / A312
Ntaus: Super Austenitic Stainless Hlau
Lub tsev: Siab Austenitic
Cov Nta Tseem Ceeb:
Zoo heev corrosion in acidic thiab chloride - kev nplua nuj ib puag ncig
Muaj kev muaj txiaj ntsig zoo heev thiab weldability
Pren ntau dua los yog sib npaug rau 45 - ntau dua 1.4410
Superior resistance rau sulfuric thiab phosphoric acid
Cov Kev Siv Cov Ntawv Siv:
Tshuaj lom neeg ua yeeb yam, pulp thiab daim ntawv kev lag luam, FLUE roj Scrubbers, kev hloov cua sov, ua kom sov, marine tso pa tawm.
Qhov sib txawv tseem ceeb ntawm 1.4410 thiab 1.4547
Tshuaj lom neeg tshuaj (wt%)
| Lub ntsiab | 1.4410 (S32750) | 1.4547 (N08926) |
|---|---|---|
| Carbon (c) | Tsawg dua los yog sib npaug rau 0.030% | Tsawg dua los yog sib npaug rau 0.020% |
| Silicon (si) | Tsawg dua los yog sib npaug rau 0.80% | Tsawg dua los yog sib npaug rau 0.50% |
| Manganese (mn) | Tsawg dua los yog sib npaug rau 1.20% | Tsawg dua los yog sib npaug rau 2.00% |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.035% | Tsawg dua los yog sib npaug rau 0.030% |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.020% | Tsawg dua los yog sib npaug rau 0.010% |
| Chromium (cr) | 24.0 – 26.0% | 19.0 – 21.0% |
| Npib tsib caug (ni) | 6.0 – 8.0% | 24.0 – 26.0% |
| Molybdenum (mo) | 3.0 – 5.0% | 6.0 – 7.0% |
| Nitrogen (n) | 0.24 – 0.35% | Tsawg dua los yog sib npaug rau 0.20% |
| Tooj Liab (Cu) | – | 0.5 – 1.5% |
| Hlau (FE) | Seem | Seem |
Cov Khoom Siv Neeg Kho Tshuab (Cov nqi raug)
| Ntiag tug | 1.4410 (S32750) | 1.4547 (N08926) |
|---|---|---|
| Tensile lub zog (mpa) | Ntau dua los yog sib npaug rau 800 | Ntau dua los yog sib npaug rau 650 |
| Yield zog 0.2% pov thawj (MPA) | Ntau dua los yog sib npaug rau 550 | Ntau dua los yog sib npaug rau 300 |
| Elongation (%) | Ntau dua los yog sib npaug rau 15 | Ntau dua los yog sib npaug rau 35 |
| Hardness (Brinell HB) | Tsawg dua los yog sib npaug rau 270 | Tsawg dua los yog sib npaug rau 250 |
| Kev cuam tshuam tawv (j) @ rt | Ntau dua los yog sib npaug rau 100 | Ntau dua los yog sib npaug rau 100 |
Corrosion Kuj
1.4410 (Super Duplex S32750) muaj siab tiv taus pittings, thiab chloride {{2} hauv cov tub rog, sab nrauv, thiab brine ib cheeb tsam. Nws tus Pren (pitting yeem sib npaug ntawm tus lej) feem ntau yog ntau dua lossis sib npaug rau 40, ua rau nws haum rau kev txhoj puab chloride kis.
1.4547 (Super Austenic N08926) muaj ntau dua siab tiv thaiv corrosion, tshwj xeeb tshaj yog cov sulfuric acid, thiab muaj kuab hiav txwv acid, thiab muaj kuab hiav txwv. Nws tus Pren yog nyob ib ncig ntawm 45-50, ntawm qhov siab tshaj plaws hauv stainless hlau, thiab nws ua tau zoo tshaj plaws nyob rau hauv cov tshuaj tsis zoo ua haujlwm.
Koj yuav xaiv qhov twg?
Xaiv 1.4410: Yog tias koj qhov kev xav tau lub zog siab, thiab koj cuam tshuam nrog Chloride kev ntxhov siab corrosion, tshwj xeeb tshaj yog nyob rau hauv chaw nyob sab nraud thiab tub ntxhw
Xaiv 1.4547: Yog koj daim ntawv thov cuam tshuam nrog cov kua qaub muaj zog (zoo li sulphion solosion (zoo li cov sulfuric acid ua), thiab koj xav tau sab saum toj-}}} Tier corrosion nrog zoo heev weldability.
NtawmGnee, peb muab ob qho tib si1.4410 Super Duplexthiab1.4547 Super Austenitic stainless hlau daim hlau, kav dej, tuav, thiab fittingsNrog rau tag nrho en, Astm, thiab tsis muaj ntawv pov thawj. Peb cov khoom tau siv dav hauv kev lag luam tseem ceeb thoob ntiaj teb thiab tuaj yeem yog kev cai kev cai {{l}} txiav thiab xa thoob ntiaj teb.
Hu rau peb cov kws paub cov hlau stainless hlau niaj hnub no kom tau txais kev sib tham pub dawb lossis thov cov lus qhia. Peb nyob ntawm no pab koj xaiv cov khoom zoo rau koj cov phiaj xwm xav tau feem ntau.
Xa kev nug