SUS304 Stainless hlau

SUS304 yog siv dav siv austenitic stainless hlau nrog 18-20% Cr thiab 8-10.5% Ni, hu ua "khoom noj- qib stainless hlau". Nws muaj kev tiv thaiv zoo corrosion, ductility, thiab weldability, ua tus qauv rau cov hom phiaj stainless hlau. Nws cov cuab yeej tsis sib nqus thiab kev ua haujlwm ruaj khov ua rau nws tsim nyog rau ntau hom kev lag luam los ntawm tsev neeg mus rau kev lag luam.

Chemical Composition (wt%): C Tsawg dua lossis sib npaug 0.08, Si Less dua lossis sib npaug rau 1.00, Mn Tsawg dua lossis sib npaug rau 2.00, P Tsawg dua lossis sib npaug rau 0.045, S Less dua lossis sib npaug 0.030, Cr=18.00-20.00, Ni=8.00-10.50, Fe=Sib npaug

Mechanical Properties: Tensile Strength Ntau dua los yog sib npaug rau 515MPa, Yield Strength Ntau dua lossis sib npaug rau 205MPa, Elongation Ntau dua lossis sib npaug li 40%, Hardness (HB) Tsawg dua lossis sib npaug 201

Kev Ua Haujlwm Zoo: Muaj zog corrosion kuj nyob rau hauv me ntsis acids / bases; formability zoo heev rau cov duab complex; zoo weldability yam tsis muaj kev tshaj tawm - kho; tsis yog-magnetic thiab zoo nkauj.

Qib sib npaugASTM A 240 304, EN 1.4301, UNS S30400

Daim ntawv thov: Cov khoom siv ua zaub mov, cov khoom siv hauv chav ua noj, cov cuab yeej kho mob, kho kom zoo nkauj vaj tsev, cov khoom siv tshuaj cia tank.

FAQ

1. Q: Vim li cas SUS304 hu ua zaub mov-qib stainless hlau? A: SUS304 ua tau raws li cov qauv kev nyab xeeb ntawm cov zaub mov vim nws 18% Cr thiab 8% Ni tsim cov oxide zaj duab xis ntom ntom, tiv thaiv cov hlau ion leaching rau hauv cov zaub mov. Nws tiv thaiv corrosion los ntawm cov organic acids hauv txiv hmab txiv ntoo, khoom noj siv mis, thiab cov kua ntses, tsis txhob kis kab mob. Nws qhov chaw du yog yooj yim los ntxuav, ua tau raws li kev nyiam huv. Tsis zoo li cov pa roj carbon steel, nws tsis xeb lossis taint zaub mov tsw, ua rau nws yog thawj qhov kev xaiv rau cov khoom noj khoom haus thiab cov tais diav.

2. Q: Puas yuav SUS304 xeb? A: Nws yog xeb-resistant tab sis tsis xeb- pov thawj. Hauv qhov chaw qhuav lossis huv si, nws nyob twj ywm. Txawm li cas los xij, nyob rau hauv qhov siab - chloride thaj chaw (nplooj ntsev tsuag) lossis ntev - kev sib cuag nrog cov kua qaub (vinegar, pickle), oxide zaj duab xis yuav tawg, ua rau pitting. Kev khawb kuj tuaj yeem txo qhov kev tiv thaiv corrosion. Kev tu tsis tu ncua nrog cov tshuaj ntxuav tes tsis tu ncua thiab ziab tuaj yeem tiv thaiv xeb, ua kom nws lub neej ua haujlwm.

3. Q: SUS304 ua haujlwm li cas hauv qhov chaw siab - qhov kub thiab txias? A: Nws ua haujlwm zoo ntawm -196℃txog 870℃. Thaum qis temps, nws khaws ductility yam tsis muaj brittleness; Thaum kub kub, nws tiv taus oxidation. Tab sis siab dua 870 degree, nws lub zog txo qis, tsis haum rau ntev - lub sij hawm siab - cua sov qhov chaw xws li lub cub tawg cores. Nws yog qhov zoo tagnrho rau nruab nrab-temp daim ntaub ntawv xws li cov kav dej los yog cov khoom noj kom tsis muaj menyuam, ntsuas tus nqi thiab kev ua haujlwm.

4. Q: Puas yog SUS304 sib nqus? A: Feem ntau tsis yog- sib nqus, tab sis ua haujlwm txias (stamping, dov) tuaj yeem ua rau cov hlau nplaum tsis muaj zog vim austenite-rau- martensite transformation. Qhov no magnetism yog ib ntus -annealing ntawm 1050℃thiab ceev ceev kom rov qab tsis yog - cov khoom sib nqus. Cov hlau nplaum tsis muaj zog tsis cuam tshuam rau nws qhov kev tiv thaiv corrosion los yog siv, yog li nws tseem tsim nyog rau cov uas tsis yog -magnetic xav tau scenarios zoo li cov khoom siv kho mob.

5. Q: Yuav ua li cas paub qhov txawv ntawm SUS304 los ntawm cov khoom cuav? A: Siv peb txoj kev. Ua ntej, tshawb xyuas cov khoom siv (piv txwv li, "304" ntawm tableware). Thib ob, siv lub ntsuas nickel-qhov tseeb muaj ntau dua lossis sib npaug li 8% Ni. Thib peb, ua ib qho kev kuaj tooj liab sulfate: ntxuav qhov chaw, siv tooj liab sulfate tov; tiag tiag yuav tsis tig liab, cuav (xws li, 201) yuav vim tsawg Ni.