316 muaj 2-3% molybdenum (Mo); 304 tsis muaj. Qhov no ua rau 316 deb dua rau cov tshuaj chloride / dej ntsev corrosion (marine, ntug hiav txwv dej, pas dej ua ke, txoj kev ntsev) thiab qee cov kua qaub, thaum 304 yog kev lag luam dav dav - qib hom phiaj.
| Chemical Composition (wt%) | ||
| Element | 304 | 316 |
| Chromium (Cr) | 18.0–20.0 | 16.0–18.0 |
| Nickel (Ni) | 8.0–10.5 | 10.0–14.0 |
| Molybdenum (hli) | - | 2.0–3.0 |
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.08 | Tsawg dua los yog sib npaug li 0.08 |
| Hlau (Fe) | Tshuav | Tshuav |
Qhov txawv ntawm Core: Ib qho tseem ceeb ntawm cov khoom xyaw
304 Stainless hlau: Muaj 18% chromium thiab 8% npib tsib xee. Nws yog feem ntau "18/8" stainless hlau.
316 Stainless hlau: Muaj 16% chromium, 10% nickel, thiab 2-3% molybdenum.
Molybdenum ntawd yog qhov kev ua si -hloov. Nws yog ib qho hlau uas ua kom muaj zog tiv thaiv chlorides (ntsev) thiab acids.
Corrosion Resistance
304: Zoo heev rau sab hauv tsev / dej tshiab / qhuav sab nraum zoov; zoo hauv zaub mov-qib ib puag ncig. Tsis zoo nyob rau hauv cov tshuaj chloride siab (cov dej ntsev, cov huab cua ntawm ntug dej hiav txwv, pas dej ua ke) → kev pheej hmoo ntawm pitting / crevice corrosion.
316: Superior chloride kuj (Mo stabilizes passive zaj duab xis); zoo dua rau sulfuric/phosphoric acids thiab siab -kub oxidation. Zoo tagnrho rau marine, ntug hiav txwv dej, tshuaj, kho mob (sterilants).
Kev sib piv ntawm daim ntawv thov
Chav ua noj: dab dej, cookware, cutlery, khoom siv
Sab hauv tsev architectural trim, railings
Cov khoom siv ua zaub mov (tsis yog -chloride ib puag ncig)
Automotive trim
Marine: nkoj fittings, propellers, rigging
Ntug hiav txwv: railings, fasteners, cladding
Tshuaj: kav dej, tso tsheb hlau luam, li qub (acids, solvents)
Kev kho mob: cov cuab yeej phais, kev cog qoob loo, sterilizers
Lub pas dej da dej kho vajtse, khoom siv desalination
Xaiv 304 yog tias: Sab hauv tsev / qhuav sab nraum zoov, dej tshiab, kev pabcuam zaub mov (tsis muaj chloride hnyav), pob nyiaj siv -sensitive.
Xaiv 316 yog tias: Cov dej ntsev / dej hiav txwv, ntug hiav txwv dej, pas dej ua ke, raug tshuaj lom neeg, kev kho mob kom tsis muaj menyuam, lossis ntev - lub sijhawm ua haujlwm ntev hauv cov xwm txheej hnyav.
Cov khoom koj nyiam
Youfa steel yeeb nkab yog cov kws tshaj lij hauv stainless hlau yeeb nkab tsum ntawm Tuam Tshoj. Txais tos cov neeg muas zaub tshiab thiab qub inguiry peb!
