Tus Hlau Stainless 304 vs 18/10: Corrosion Kuj
Tso lus
Corrosion tsis kam sib piv ntawm 304 stainless hlau thiab 18/10 stainless hlau
304 Stainless hlau thiab 18/10 Stainless hlau (feem ntau sib npaug rau 316 stainless hlau) yog Austenitic steels nrog cov cim sib txawv thiab kev ua tau zoo. Ntawm no yog cov ncauj lus kom ntxaws tshuaj xyuas ntawm lawv corrosion tsis kam:
Tus Hlau Stainless 304 vs 18/10: Tshuaj lom neeg muaj pes tsawg leeg
| Khoom | Chromium (cr) | Npib tsib caug (ni) | Molybdenum (mo) | Carbon (c) |
|---|---|---|---|---|
| 304 | 18–20% | 8–10.5% | Tsis muaj | Tsawg dua los yog sib npaug rau 0. 07% |
| 18/10 | 16–18% | 10–14% | 2–3% | Tsawg dua los yog sib npaug rau 0. 08% |
Tsab ntawv:
"18/10" yog lub sijhawm sib txuas ntxiv yog xa mus rau 316 stainless hlau (vim nws 18% CR thiab 10% NI cov ntsiab lus).
Yog tias "18/10" yog tsis yog qauv, nws yuav raug txiav txim siab 304 stainless hlau (pov thawj specifications).
Tus Hlau Stainless 304 vs 18/10: Corrosion Kuj
(1) General Corrosion ib puag ncig
304 Stainless Hlau:
Tiv taus atmospheric raug, dej tsis tau, thiab muaj zog acidic acids (piv txwv li, cov khoom noj citric).
Haum rau txhua hnub daim ntawv thov xws li chav ua noj ua noj ua noj ua haus thiab cov khoom sib luag.
18/10 (316 Stainless Hlau):
Enhanced corrosion kuj, tshwj xeeb tshaj yog hauv chloride ib puag ncig (piv txwv li, seasater, acidic dolions), vim molybdenum ntxiv.
Qhov zoo tshaj plaws rau cov cuab yeej kho mob, khoom siv marine, thiab kev ua yeeb yam.
Stainless hlau 304 vs 18/10: kev ua tau zoo hauv cov xwm txheej tshwj xeeb
| Huab cua | 304 Stainless Hlau | 18/10 (316 Stainless hlau) |
|---|---|---|
| Chloride Dolutions | Nquag pitting thiab crevice corrosion | Zoo heev pitting resistance (ma inhibits clj attack) |
| Acidic media | Nruab nrab kev tawm tsam (piv txwv li, dilute sulfuric acid) | Superior resistance rau cov kua qaub muaj zog (piv txwv li, phosphoric, acetic) |
| Kev Kub-Kub Oxidation | Tiv taus mus txog ~ 870 degree | Zoo ib yam li 304 (oxidation tsis kam) |
Tus Hlau Stainless 304 vs 18/10: Daim ntawv thov thov cov lus pom zoo
Xaiv 304 stainless hlau rau:
Kev siv tsev neeg: cutlery, cantware, tog.
Cov chaw qis-corrosion: cov dej tsis tu ncua, huab cua, qaug zog alkalis.
Xaiv 18/10 (316 stainless hlau) rau:
Harsh qhov chaw: Seasater, acidic ntxuav, tshuaj lom neeg.
Cov Ntawv Siv Kho Mob: Kev phais cov cuab yeej, vim yog biocompatibility).
