Thaum xaiv cov hlau tsis huv rau kev ua tshuaj, marine, roj thiab roj, cov hlab ntsha siab, lossis kev siv cov qauv, cov neeg yuav khoom feem ntau sib piv cov hlau tsis huv.TIAB SA 2205nrog austenitic stainless hlau316l ua.
Ob leeg cov ntaub ntawv yog corrosion resistant, tab sis txawv heev nyob rau hauv lub zog, corrosion mechanism, nqi efficiency thiab kev pab cuam ib puag ncig. Kev xaiv cov qib zoo tuaj yeem cuam tshuam ncaj qha rau cov cuab yeej siv lub neej, kev nyab xeeb margin, thiab tag nrho cov nqi tsim khoom.
SAF 2205 Stainless hlau yog dab tsi?
TIAB SA 2205Nws yog stainless hlauduplexnws cov microstructure muaj kwv yees li qhov sib npaug ntawm austenite thiab ferrite, feem ntau ua raws li cov qauv xws liASTM A240 / UNS S32205 lossis S31803. Nws yog tus cwj pwm los ntawm siab chromium (~ 22%) thiab molybdenum (~ 3%) cov ntsiab lus, nrog rau cov nitrogen ntxiv uas txhim kho lub zog thiab pitting corrosion kuj. Nws lub zog tawm los yog kwv yees li ob npaug ntawm 316L stainless hlau, thiab nws muaj kev ntxhov siab zoo corrosion (SCC). Nws cov kev siv ib txwm muaj xws li offshore platforms thiab subsea pipelines, chemical storage tanks thiab heat exchangers, desalination nroj tsuag thiab marine systems, nrog rau cov hlab ntsha siab xav tau lub zog siab.
316L Stainless hlau yog dab tsi?
Nws316l uayog ib tug uas tsis muaj carbon austenitic stainless hlau standardized thoob ntiaj teb liASTM 316L / EN 1.4404 / UNS S31603. Nws muaj nuj nqis rau nws qhov zoo tshaj plaws corrosion kuj, zoo weldability thiab zoo formability, thaum nws cov ntsiab lus carbon tsawg (Less tshaj los yog sib npaug rau 0.03%) tiv thaiv intergranular corrosion. Tau txais kev lees paub thoob ntiaj teb thiab npaj tau yooj yim, 316L feem ntau yog siv rau hauv cov khoom noj khoom haus thiab dej haus, cov khoom siv tshuaj thiab kev kho mob, cov khoom vaj tsev thiab cov hniav zoo nkauj, thiab cov kav dej dav dav.
Chemical Composition Comparison: SAF 2205 vs 316L
|
Qib |
Cr (%) |
Tsis yog (%) |
Mo (%) |
N (%) |
|---|---|---|---|---|
|
TIAB SA 2205cov |
21.0-23.0 Nws |
4.5–6.5 |
2.5–3.5 |
0.14–0.20 dr hab |
|
316l uacov |
16.0-18.0 Nws |
10.0–14.0 Nws |
2.0–3.0 Nws |
Tsawg dua lossis sib npaug li 0.10 |
Mechanical Properties (Annealed Condition)
|
Khoom |
TIAB SA 2205 |
316l ua |
|---|---|---|
|
elastic txwvcov |
Ntau dua lossis sib npaug li 450 MPa |
Ntau dua lossis sib npaug li 170 MPa |
|
Tensile zogcov |
Ntau dua lossis sib npaug li 620 MPa |
Ntau dua lossis sib npaug li 485 MPa |
|
Elongationcov |
Ntau dua lossis sib npaug li 25% |
Ntau dua lossis sib npaug li 40% |
|
Qhov ntomcov |
7.8 g / cm³ |
8.0 g / cm³ |
Kev sib piv
|
Performance Aspect |
TIAB SA 2205 |
316l ua |
|---|---|---|
|
Pitting corrosion kujcov |
⭐⭐⭐⭐⭐ ib |
⭐⭐⭐ ib |
|
Kev ntxhov siab Corrosion (SCC)cov |
Zoo heev |
Nruab nrab |
|
Weldabilitycov |
Zoo (tswj) |
Zoo heev |
|
Conformabilitycov |
Nruab nrab |
Zoo heev |
|
Tus nqi ib tujcov |
Cov laus |
Me me |
Kev sib piv kom ntxaws
Corrosion Resistance:Piv rau 316L, Alloy 2205 nthuav tawm ntau dua kev tiv thaiv kev nyuaj siab corrosion, crevice corrosion, thiab pitting corrosion, tshwj xeeb tshaj yog nyob rau hauv chloride ib puag ncig (xws li dej hiav txwv).
Mechanical Resistance:Qhov tsawg kawg nkaus lub zog ntawm alloy 2205 (kwv yees . 448 MPa) yog kwv yees li ob zaug ntawm 316L (kwv yees . 170-200 MPa), tso cai rau tsim cov qauv nyias thiab sib dua.
Kev txwv kub:Alloy 2205 yog haum rau daim ntaub ntawv mus txog 150 degrees (302 degrees F), tab sis nws yog nquag mus clogging ntawm kub saum toj no 300 degrees (572 degrees F), thaum alloy 316L, txawm tsawg resistant, withstands siab dua kub.
Daim ntawv thov:316L yog qhov zoo tagnrho rau cov khoom noj, dej haus thiab kev siv lub hom phiaj. Alloy 2205 yog qhov tsim nyog rau cov tshuaj tankers, offshore platforms thiab desalination nroj tsuag.
Nqi thiab kev ua:316L feem ntau tsis tshua kim thiab yooj yim rau tshuab thiab vuam.
Yog tias koj muaj qhov yuav tsum tau ua rau 316L lossis 2205 stainless hlau, peb zoo siab tos txais koj los tso koj qhov kev txiav txim.GNEEmuaj cov khoom muag loj ntawm cov khoom nrov rau koj xaiv los ntawm. Cov ntaub ntawv no tuaj yeem ua tiav hauv ntau txoj hauv kev, suav nrogphaj, coils, raj, tuav thiab xaim. Rau cov ncauj lus kom ntxaws txog tshuaj muaj pes tsawg leeg thiab kuaj dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.
