Qhov txawv ntawm 321 thiab 347 Stainless Hlau Sawb yog dab tsi?
Qhov txawv ntawm 321 thiab 347 Stainless Hlau Sawb yog dab tsi?
Lub ntsiab sib txawv ntawm 321 thiab 347 stainless hlau strips nyob rau hauv lub stabilizing lub caij: 321 siv titanium (Ti), thaum 347 siv niobium (Nb) (tseem hu ua niobium) los tiv thaiv carbide nag lossis daus thiab intergranular corrosion ntawm qhov kub thiab txias. Ob leeg tuaj yeem hloov qis- carbon steel qib xws li 304/304L rau vuam thiab siab - qhov kub thiab txias, nrog niobium feem ntau ua tau zoo me ntsis hauv arc vuam thiab siab - oxidation tej yam kev mob.
Dab tsi yog qhov tsis zoo ntawm 304 stainless hlau?
Qhov tsis zoo ntawm 304 stainless hlau muaj xws li: susceptibility to chloride corrosion (xws li seawater), kev ua haujlwm tsis zoo nyob rau hauv lub zog acid / alkali ib puag ncig, qis zog dua lwm cov hlau, susceptibility to stress corrosion cracking, and high cost than carbon steel. Yog li ntawd, nws tsis zoo - haum rau marine, hnyav chemical ib puag ncig, los yog hnyav structural applications.
Dab tsi yog 321 Stainless Hlau Sawb?
321 stainless hlau sawb yog npib tsib xee -chromium- molybdenum austenitic stainless hlau cov khoom, nrog cov khoom zoo ib yam li 304 stainless hlau sawb.
Txawm li cas los xij, vim qhov sib ntxiv ntawm titanium alloy Cheebtsam, nws pom zoo tiv thaiv intergranular corrosion thiab siab - kub lub zog, thiab zoo tswj cov tsim ntawm chromium carbide.
321 austenitic stainless hlau sawb tau zoo corrosion kuj nyob rau hauv cov huab cua thiab yog dav siv nyob rau hauv kev lag luam xws li petrochemicals, lub zog tsim, choj tsim, thiab tsheb.
Txawm li cas los xij, "tsis yog{0}}corrosion" ntawm 321 stainless hlau tsis yog qhov tseeb. Vim muaj kev khiav hauj lwm ib puag ncig, 321 stainless hlau tseem tuaj yeem corrode.
Cov yam ntxwv xws li nruab nrab concentration, pH tus nqi, thiab qhov kub thiab txias muaj feem cuam tshuam rau corrosion kuj ntawm 321 stainless hlau.
Dab tsi yog 347 Stainless Hlau Sawb?
Niobium tau ntxiv rau 347 stainless hlau sawb.
347 stainless hlau sawb yog ib qho stabilized stainless hlau sawb, yam ntxwv los ntawm nws zoo heev tiv thaiv intergranular corrosion. Txawm tias kub txog li 800 degrees Celsius, nws tswj cov khoom zoo los ntawm nag lossis daus ntawm chromium carbide.
347 stainless hlau sawb kuj muaj qhov zoo siab -kub txhua yam khoom.
Qhov sib txawv ntawm 321 Stainless Steel Strips thiab 347 Stainless Steel Strips
Tshuaj muaj pes tsawg leeg
Cov lus hauv qab no qhia txog cov tshuaj muaj pes tsawg leeg ntawm qib 321 stainless hlau sawb:
| Qib | Txuj | C | Si | Mn | P | S | Cr | Ni | Mo |
| 321 | ASTM A 240 Cov Lus Qhia | Tsawg dua lossis sib npaug li 0.08 | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 2.00 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.030 | 17.00-19.00 | 9.00-12.00 | – |
Cov lus hauv qab no qhia txog cov tshuaj muaj pes tsawg leeg ntawm qib 347 stainless hlau sawb:
| Qib | Txuj | C | Si | Mn | P | S | Cr | Ni | Mo |
| 347 | ASTM A 240 Cov Lus Qhia | Tsawg dua lossis sib npaug li 0.08 | Tsawg dua lossis sib npaug li 0.75 | Tsawg dua lossis sib npaug li 2.00 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.030 | 17.00-19.00 | 9.00-13.00 | – |
Mechanical Properties
321 Stainless Hlau Sawb Mechanical Properties
| Qib | EN Qib | Yield zog Rp0.2 (N / mm²) | Tensile zog Rm (N / mm²) | Vickers Hardness (HV) | Elongation A50% |
| 321 | 1.4541 | Ntau dua lossis sib npaug rau 205 | Ntau dua lossis sib npaug li 520 | Tsawg dua los yog sib npaug li 200 | Ntau dua lossis sib npaug li 40 |
347 Stainless Hlau Sawb Mechanical Properties
| Yield zog | Tensile zog | Elongation | Hardness | ||
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 201 Brinell |
Zoo sib xws ntawm 321 thiab 347 stainless hlau strips:
Stabilization Treatment: Ob leeg yog austenitic stainless hlau. Tom qab kev kho kom ruaj khov, lawv tiv taus qhov kev xav (chromium carbide tsim) nyob rau hauv thaj tsam ntawm 800-1500℃F (427-816 degree), ua rau lawv haum rau qhov chaw kub kub.
Basic Composition: Ob leeg yog qhov tseem ceeb 304 hom stainless hlau nrog ntxiv stabilizers.
Weldability: Ob leeg muaj qhov zoo tshaj plaws weldability, tab sis kev xaiv ntawm vuam hlau txawv.
Daim ntawv thov ntawm 321 thiab 347 Stainless Hlau Strips
321 Stainless Hlau Sawb Daim Ntawv Thov
321 stainless hlau sawb yog dav siv nyob rau hauv teb machinery thiab khoom siv nyob rau hauv cov tshuaj, thee, thiab roj av industries. Cov cuab yeej siv no yuav tsum muaj kev tiv thaiv siab rau intergranular corrosion, nrog rau cov cua sov- cov khoom tiv thaiv rau cov khoom siv hauv tsev thiab cov khoom uas xav tau kev kho cua sov.
1. Petroleum exhaust gas combustion pipelines
2. Cav qhov tso pa tawm
3. Boiler shells, heat exchangers, thiab cov khoom siv rauv
4. Diesel cav muffler Cheebtsam
5. Boiler siab hlab ntsha
6. Cov tsheb thauj khoom siv tshuaj lom neeg
7. Kev sib txuas ua ke
8. Kauv welded kav rau lub cub tawg thiab tshuab ziab khaub ncaws
347 Stainless Hlau Sawb
Kev lag luam tshuaj
Khoom noj khoom haus
Petroleum Kev Lag Luam
Pharmaceutical Production Line
Kev lag luam pov tseg Thaum tshav kub kub
Thaum tshav kub kub kev lag luam
Gnee Steel kuj muab kev cai stainless hlau 321 khoom nyob rau hauv ntau qhov ntau thiab tsawg thiab specifications. Thov xa koj cov duab kos rau peb rau kev tsocai!