Vim li cas 304 vs 316 Cov Teeb Meem Hauv Cov Ntawv Thov Kev Siv Hluav Taws Xob?
304i ib316 stainless hlau sawbyog ob qho ntawm feem ntau siv austeniticstainless hlau qib hauv kev tsim khoom thoob ntiaj teb. Txawm hais tias lawv zoo sib xws, lawv cov kev ua tau zoo sib txawv hauv kev tiv thaiv corrosion, kev pab lub neej, thiab kev siv nyiaj txiag.
Rau cov neeg yuav khoom B2B, xaiv cov qib tsis raug tuaj yeem ua rau:
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ntxov ntxov corrosion tsis ua hauj lwm
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nce nqi kho mob
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ntau lawm downtime
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cov ntaub ntawv tshaj - specification thiab nkim nyiaj txiag
Phau ntawv qhia no muab ibtechnical, procurement-qib pivraws li kev lag luam metallurgy cov qauv thiab daim ntawv thov engineering.
Chemical Composition Difference
|
Element |
304 Stainless hlau |
316 Stainless hlau |
|
Chromium (Cr) |
~18% |
~16–18% |
|
Nickel (Ni) |
~8% |
~10–14% |
|
Molybdenum (hli) |
0% |
~2–3% |
Lub xub ntiag ntawmmolybdenum nyob rau hauv 316ho nce kuj muschloride-induced pitting corrosion, uas yog ib qho tseem ceeb nyob rau hauv marine thiab tshuaj ib puag ncig.
Corrosion Resistance: Qhov tseem ceeb tshaj plaws kev txiav txim siab
304 Stainless Hlau Sawb
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Zoo heev general corrosion kuj
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Haum rau qhov chaw nyob sab hauv tsev
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Yooj yim rau kev raug tshuaj chloride (ntsev, dej hiav txwv, de- tshuaj icing)
316 Stainless Hlau Sawb
Kev tiv thaiv zoo tshaj hauv chloride-ib puag ncig nplua nuj ideal rau:
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marine engineering
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offshore platforms
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chemical processing nroj tsuag
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cov khoom siv tshuaj
Kev piav qhia engineering
316 resists pitting corrosion vim molybdenum stabilizes passive oxide txheej, txo qhov chaw tawg nyob rau hauv chloride nres.
Mechanical Properties thiab Formability
Ob leeg 304 thiab 316 yog nyob rau hauvaustenitic stainless hlau tsev neeg, lub ntsiab lus:
non-magnetic (annealed mob)
zoo heev ductility
siab ua hauj lwm hardening tus nqi
Qhov txawv tseem ceeb:
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304: yooj yim rau kev tsim thiab txiav
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316: me ntsis tougher, ntau dua cov cuab yeej hnav thaum machining thiab slitting
Nqi vs Kev Ua Lag Luam Ua Lag Luam -Tawm
|
Qhov xwm txheej |
304 |
316 |
|
Tus nqi khoom siv |
qis |
20-40% siab dua |
|
Kev Pabcuam Lub Neej |
Nruab nrab |
Ntev nyob rau hauv ib puag ncig hnyav |
|
Tus nqi kho mob |
Nruab nrab |
Tsawg siv corrosive |
Txoj Cai Muag Khoom:
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Xaiv304rau kev tswj ib puag ncig
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Xaiv316thaum muaj kev pheej hmoo corrosion justifies lifecycle tus nqi txuag
Kev Siv Khoom Siv Ua Haujlwm tawg
304 Stainless Hlau Sawb Daim Ntawv Thov
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kev tsim khoom siv hauv chav ua noj
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automotive trim Cheebtsam
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architectural panels
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General stamping thiab tsim qhov chaw
316 Stainless Hlau Sawb Daim Ntawv Thov
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marine fasteners thiab fittings
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chemical tanks thiab kav dej
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cov cuab yeej kho mob thiab cov cuab yeej phais
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offshore roj & roj systems
Manufacturing & Processing Considerations
Slitting & Ntug Zoo
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304: huv si slitting, qis burr tsim
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316: Cov cuab yeej siv siab dua vim kev ua haujlwm nyuaj
Nto Finish Options
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2B tiav: cov qauv kev lag luam
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BA tiav: daim ntaub ntawv kho kom zoo nkauj
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polished tiav: huv si - ib puag ncig tseem ceeb
Standards thiab Quality Assurance
High - zoo stainless hlau sawb yuav tsum ua raws li:
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ASTM A240 (phaj, ntawv, sawb)
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EN 1.4301 (304)
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EN 1.4401 (316)
Cov neeg yuav khoom yuav tsum thov:
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Material Test Certificate (MTC)
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Spectrochemical tsom xam daim ntawv qhia
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Nto roughness ntawv pov thawj (Ra tus nqi)
Xaus
Qhov kev txiav txim siab ntawm 304 thiab 316 stainless hlau sawb tsis yog ib qho kev xaiv cov khoom siv xwb- nws yog kev txiav txim siab txog kev tsim vaj tsev lifecycle. Shaanxi Tonghui Steel Co., Ltd tuaj yeem muab cov raj hauv kev cai ntev, tiav, thiab cov duab kom haum rau koj qhov project. Lag luam wholesale Stainless hlau sawb 304, 304L, 201, 316 Nqe.Tiv tauj pebrau kev hais lus lossis kev txhawb nqa.
Stainless hlau Factory FAQs:
Q1: Puas yog 316 stainless hlau xeb?
316 resists xeb nyob rau hauv feem ntau ib puag ncig, tab sis nws tseem tuaj yeem corrode nyob rau hauv huab cua chloride concentration lossis kev saib xyuas tsis zoo.
Q2: Puas yog 304 stainless hlau zoo rau siv sab nraum zoov?
Yog lawm, tab sis tsuas yog nyob rau hauv tsis yog - ntug hiav txwv dej, qis - chloride ib puag ncig.
Q3: Vim li cas 316 kim dua 304?
Vim nws muaj molybdenum thiab ntau dua nickel cov ntsiab lus, txhim kho corrosion kuj.
