Kev sib piv ntawm kev ua haujlwm corrosion ntawm Qib 2 titanium alloy thiab 304L stainless hlau.
Dec 17, 2025
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Kev sib piv ntawm kev ua haujlwm corrosion ntawm Qib 2 titanium alloy thiab 304L stainless hlau.
Kev sib piv ntawm kev ua haujlwm corrosion ntawm Qib 2 titanium alloy thiab 304L stainless hlau.
AISI 304 stainless hlau yog ib qho yooj yim thiab ruaj khov hlau-raws li alloy haum rau lub hom phiaj dav dav, yooj yim rau tshuab, thiab muaj kev tiv thaiv corrosion zoo. Qib 2 titanium yog cov hlau ntshiab uas muaj lub zog zoo heev - rau- qhov hnyav piv, zoo heev corrosion kuj (tshwj xeeb tshaj yog nyob rau hauv seawater / tshuaj ib puag ncig), thiab siab dua kub kuj, tab sis nws yog ho kim kim thiab nyuaj rau tshuab. Rau kev lag luam niaj hnub xav tau, xaiv 304 stainless hlau; rau aerospace, marine, kev kho mob, los yog siab - kev ua tau zoo daim ntaub ntawv uas lub teeb yuag thiab corrosion kuj tseem ceeb heev, xaiv Qib 2 titanium.
Puas yog titanium muaj zog dua 304 stainless hlau?
Heavy-cov haujlwm steel
Piv txwv li, lub zog tawm los ntawm Ti-6Al-4V titanium alloy yog nyob rau hauv thaj tsam ntawm 800-900 MPa, uas yog qhov muaj zog dua li 304 stainless hlau (kwv yees li 170-310 MPa), tab sis tsis muaj zog dua li cov hlau carbon siab (xws li AISI 10455, nrog rau 03 yield zog).
AISI 304 stainless hlau yog ib qho dav dav -lub hom phiaj austenitic stainless hlau paub txog nws zoo corrosion kuj, zoo heev formability, thiab weldability. Nws cov ntsiab lus tseem ceeb yog chromium-nickel piv (kwv yees li 18% chromium, 8% npib tsib xee), thiab nws ua haujlwm ruaj khov hauv cov huab cua me me, dej tshiab, thiab ntau yam oxidizing media. Nws yog dav siv hauv chav ua noj, khoom noj khoom haus, kho kom zoo nkauj architectural, khoom siv hauv tsev, thiab cov khoom siv dav dav, ua rau nws siv ntau tshaj plaws thiab tus nqi - qib stainless hlau zoo. Txawm li cas los xij, nws tsis haum rau siab -concentration chloride lossis muaj zog txo cov kua qaub ib puag ncig.
Qib 2 titanium yog qib siv dav tshaj plaws ntawm cov ntshiab titanium (ua lag luam ntshiab titanium), uas yog los ntawm - hom titanium alloy. Nws cov yam ntxwv tseem ceeb suav nrog kev tiv thaiv corrosion zoo heev (tshwj xeeb tshaj yog nyob rau hauv ib puag ncig chloride), zoo tag nrho cov khoom siv kho tshuab (qhov sib npaug ntawm lub zog thiab ductility), thiab zoo heev txias formability thiab weldability. Nws yog tsuas yog siv nyob rau hauv cov khoom siv tshuaj (kub exchangers, reactors), marine engineering, kho mob implants, tsis yog -load- bearing aerospace qauv, thiab cov neeg siv khoom. Nws yog cov khoom siv "kev lag luam ua haujlwm" ntawm cov qib titanium ntshiab, ntsuas kev ua tau zoo, kev ua tau zoo, thiab tus nqi- ua tau zoo.
Cov tshuaj muaj pes tsawg leeg ntawm AISI 304 stainless hlau thiab Qib 2 titanium
| Element | Stainless hlau 304 (UNS S30400) | Qib 2 Titanium (UNS R50400) |
|---|---|---|
| Hlau (Fe) | Tshuav | Tsawg dua lossis sib npaug li 0.30% |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.08% | Tsawg dua lossis sib npaug li 0.10% |
| Chromium (Cr) | 18.0 – 20.0 % | – |
| Nickel (Ni) | 8.0 – 10.5 % | – |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.0% | – |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.0% | – |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045% | – |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030% | – |
| Titanium (Ti) | – | Ntau dua los yog sib npaug rau 99.2% (Tswj) |
| Cov pa oxygen (O) | – | Tsawg dua lossis sib npaug li 0.25% |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.10% | Tsawg dua lossis sib npaug li 0.03% |
| Hydrogen (H) | – | Tsawg dua lossis sib npaug li 0.015% |
AISI 304 Stainless hlau (Iron Alloy)
Qhov zoo: Tus nqi - zoo, dav muaj, zoo heev durability, zoo toughness, yooj yim rau weld / tshuab, zoo corrosion kuj (tsawg dua rusting dua carbon steel).
Qhov tsis zoo: hnyav dua titanium, tsis zoo corrosion kuj nyob rau hauv ib puag ncig hnyav (seawater, muaj zog corrosive tshuaj).
Kev siv zoo tshaj plaws: Cov khoom siv hauv tsev, kho kom zoo nkauj vaj tsev, ua zaub mov, cov khoom siv dav dav uas qhov hnyav tsis yog qhov tseem ceeb.
Qib 2 Titanium (Pure Hlau)
Qhov zoo: Kwv yees li 45% sib zog dua cov hlau, lub zog zoo heev - rau - qhov hnyav piv, zoo corrosion kuj (virtually tiv thaiv xeb / seawater corrosion), kub tsis kam, biocompatibility zoo (tsim rau kev kho mob cog).
Disadvantages: kim kim kim, nyuaj rau txheej txheem / tsim, thermal conductivity tsawg (tsawg tshav kub hloov efficiency).
Kev siv zoo tshaj plaws: Aerospace (airframes, engines), siab - tsheb / tsheb kauj vab, marine hardware, kho mob implants (pob txha, kho hniav), tshuaj ua hauj lwm.
Feem ntau, 304L stainless hlau tsis haum rau cov ntawv thov uas muaj nitric acid vim tias nws tuaj yeem raug mob hnyav los yog cuam tshuam los ntawm intergranular corrosion. Qib 2 titanium yog tsim rau kev tuav thiab tsim cov nitric acid. Nws pom zoo corrosion tsis kam rau nitric acid ntawm qhov kub thiab txias hauv qab qhov kub kub.
Kev sib piv kev ua tau zoo ntawm Qib 2 titanium alloy thiab 304L stainless hlau hauv cov kua qaub nitric.
Thaum kub kub, Qib 2 titanium tuaj yeem ua rau muaj kev kub ntxhov hauv nitric acid. Txawm li cas los xij, qhov kev txhim kho corrosion no zoo sib xws rau kev purity ntawm nitric acid. Tsis tas li ntawd, cov khoom siv corrosion ntawm titanium (titanium ions, Ti⁴⁺) inhibit corrosion ntxiv. Cov nyhuv inhibitory no txhim kho qhov kev tiv thaiv corrosion ntawm Qib 2 titanium rau cov concentrated nitric acid ntawm qhov kub thiab txias. Kev sib piv ntawm kev tiv thaiv corrosion ntawm Qib 2 titanium thiab 314L stainless hlau hauv 90% boiling nitric acid yog qhia hauv qab no.
| Hlau Kub | Ti Gr.2 Corrosion Rate | SS 304L Corrosion Rate | |||
|---|---|---|---|---|---|
| degree | degree F | mm/yr | mils/yr | mm/yr | mils/yr |
| 116 | 240 | 0.03~0.17 | 1.2~6.7 | 3.8~13.2 | 150~520 |
| 135 | 275 | 0.04~0.15 | 1.6~6 | 17.2~73.7 | 675~2900 |
Vim li cas thiaj xaiv Gnee ua koj cov khoom siv stainless hlau?
✅ Tshaj 18 xyoo ntawm kev xa tawm, nrog cov khoom muag rau ntau tshaj 80 lub teb chaws
✅ ISO, SGS, thiab BV tau ntawv pov thawj
✅ Muaj thoob ntiaj teb Tshuag ntawm 304, 316, 316L, thiab 321 alloy kav, phaj, thiab tuav
✅ Customized processing services muaj, xws li txiav, polishing, CNC machining, thiab ntim
✅ Kev xa khoom sai hauv 7-15 hnub, txhawb nqa los ntawm cov neeg koom tes thoob ntiaj teb
📦 Ntim thiab Shipping
Tag nrho cov khoom siv stainless hlau tau ntim raws li hauv qab no:
Ntoo pallets lossis ntoo crates
Moisture -cov ntaub ntawv pov thawj
Sau npe nrog cov xov tooj cua sov, tus qauv, thiab qhov ntev
Shipped thoob ntiaj teb los ntawm hiav txwv, huab cua, los yog nthuav qhia
Gnee Steel kuj muab kev cai stainless hlau 304 khoom nyob rau hauv ntau qhov ntau thiab tsawg thiab specifications. Thov xa koj cov duab kos rau peb rau kev tsocai!
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