Khoom noj khoom haus qib Stainless hlau: 304 vs 316
Mar 03, 2026
Tso lus
Ob leeg 304 thiab 316 stainless hlau raug cais ua zaub mov- qib thiab ua tau raws li cov qauv kev cai rau kev sib cuag ncaj qha nrog zaub mov, suav nrog FDA cov cai, EU Framework Regulation (EC) No 1935/2004, thiab NSF/ANSI 51 ntawv pov thawj. Lawv cov khoom noj kev nyab xeeb kev ua tau zoo yog rooted nyob rau hauv peb yam tseem ceeb: corrosion kuj, tshuaj stability, thiab yooj yim ntawm tu.2
Khoom noj khoom haus- qib stainless hlau yog tsim los txo cov impurities xws li txhuas, cadmium, thiab sulfur, uas tuaj yeem nkag mus rau hauv cov zaub mov. Ib txheej tiv thaiv chromium oxide- khaws cia los ntawm kev ua kom raug cai- tiv thaiv corrosion thiab inhibits kev sib kis.2
Nto tiav ntxiv cuam tshuam kev nyiam huv: du, electropolished nto txo microbial adhesion thiab yooj yim tu, uas yog tshwj xeeb tshaj yog tseem ceeb nyob rau hauv cov mis nyuj, brewing, thiab lwm yam dej haus ua ib puag ncig.
Sib piv Properties ntawm 304 vs 316
Thaum ob leeg yog austenitic stainless hlau, lawv cov tshuaj muaj pes tsawg leeg thiab corrosion kuj txawv:
Tshuaj muaj pes tsawg leeg
| Lub ntsiab | SIB 304 | 316 SIB |
|---|---|---|
| Chromium (Cr) | 17.5-20.0% | 16.0-18.5% |
| Nickel (Ni) | 8.0-11.0% | 10.0-14.0% |
| Molybdenum (hli) | 0 % | 2.0-3.0% |
Corrosion Resistance
Stainless hlau 304
Qib 304 yog qhov siv dav heev, tus nqi - kev xaiv zoo rau kev siv zaub mov thiab dej haus. Nws muaj kev tiv thaiv zoo rau feem ntau oxidizing acids thiab tsis corrode yooj yim hauv cov txheej txheem kev ua haujlwm.
Txawm li cas los xij, nws muaj qhov cuam tshuam rau pitting corrosion nyob rau hauv chloride-nplua nuj tej yam kev mob, ua rau nws tsis haum rau daim ntaub ntawv uas muaj ntsev los yog briny dej.3
Stainless hlau 316
Qhov sib ntxiv ntawm molybdenum muab 316 stainless hlau txhim khu kev tiv thaiv rau pitting thiab crevice corrosion, tshwj xeeb tshaj yog nyob rau hauv chloride - raug, acidic, los yog siab - qhov kub thiab txias ib puag ncig. Nws ua haujlwm zoo hauv kev ua cov nqaij nruab deg, cov khoom noj muaj kua qaub xws li citrus lossis txiv lws suav, thiab hauv cov chaw uas siv kev tu siab heev-hauv- qhov chaw (CIP) systems.
Hauv cov xwm txheej no, 316 kav ntev dua thiab ua tau zoo dua li 304.
Xa kev nug