Qhov twg yog qhov zoo dua, sus304 lossis sus316 stainless hlau phaj?

Ntawm cov hlau hlau, sus304 thiab sus316 yog cov qib kev siv Antertenic feem ntau. Lawv txawv txawv nyob rau hauv cov nqe lus ntawm corrosion tsis kam, kev ua haujlwm, thiab tus nqi. Hauv tsab xov xwm no, peb yuav piv sus304, thiab sus316L siv ib qho yooj yim {{} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8} {8}-

 

Dab tsi yog sus304 stainless hlau phaj?
Sus304 Stainless hlau phaj, feem ntau hu ua 304, yog ib tug Austenic stainless hlau uas ua raws JIS cov qauv. Nws muaj kwv yees li 18% chromium thiab 8% npib tsib xee. Qhov kev sib xyaw no muab cov khoom siv corrosion zoo tshaj plaws, cov khoom siv zoo, thiab siab}} lub zog kub, ua kom haum rau kev ua zaub mov, cov khoom siv hauv tsev.

Dab tsi yog sus316 stainless hlau phaj?
Sus316 Stainless hlau phaj yog lub siab - kev ua yeeb yam Austenitic steel. Nws zoo heev corrosion kuj, tshwj xeeb rau chloride thiab acid corrosion, yog tiav los ntawm kev sib ntxiv ntawm molybdenum. "Sus" yog Japanese kev lag luam qauv (JIS) kev tsim qauv rau cov hlau stainless, thiab sus316 yog sib npaug rau Asmeskas Aisi 316 Txuj Ci. Nws yog qhov haum rau kev thov cov ntawv thov xws li cov khoom siv marine, siv tshuaj lom neeg, uas muaj cov khoom siv ua lag luam, uas muaj cov khoom siv ua kom nruj thiab xeb.

 

Sus304 vs sus316 stainless hlau tshuaj lom neeg

Ntiag tug	Sus304(JIS G4303)	Sus316(JIS G4303)
Tshuaj Muaj Tshuaj
- chromium (CR)	18.0–20.0%	16.0–18.0%
{{0 {}} nickel (ni)	8.0–10.5%	10.0–14.0%
- molybdenum (mo)	Tsis ntxiv	2.0–3.0%
- carbon (c)	Tsawg dua los yog sib npaug rau 0.08%	Tsawg dua los yog sib npaug rau 0.08%
-} manganese (mn)	Tsawg dua los yog sib npaug rau 2.0%	Tsawg dua los yog sib npaug rau 2.0%
- remicon (si)	Tsawg dua los yog sib npaug rau 1.0%	Tsawg dua los yog sib npaug rau 1.0%
- phosphorus (p)	Tsawg dua los yog sib npaug rau 0.045%	Tsawg dua los yog sib npaug rau 0.045%
-}} sulfur (s)	Tsawg dua los yog sib npaug rau 0.030%	Tsawg dua los yog sib npaug rau 0.030%

 

Sus304 vs sus316 stainless hlau neeg kho tshuab

Cov Khoom Siv Neeg Kho Tshuab	Sus304(JIS G4303)	Sus316(JIS G4303)
{{0- tensile lub zog (mpa)	Ntau dua los yog sib npaug rau 520	Ntau dua los yog sib npaug rau 520
{{0 {}} tawm lub zog (mpa)	Ntau dua los yog sib npaug rau 205	Ntau dua los yog sib npaug rau 205
{{0 {}} elongation (%)	Ntau dua los yog sib npaug rau 40%	Ntau dua los yog sib npaug rau 40%
- hardness (rockwell b)	Tsawg dua los yog sib npaug rau 92	Tsawg dua los yog sib npaug rau 95
{{0 {{}} ntom (g / cm³)	7.93	7.98

 

Corrosion Kuj:

Ob qho tib si sus304 (AISI 304 / 1.4301) thiab sus316 (AISI 316 / 1.440) Stainless hlau muaj cov khoom sib txawv zoo heev, tab sis muaj qhov sib txawv ntawm lawv. Sus304 muaj 16 - 18% chromium thiab 8-10 hom kev ua kom zoo nkauj, cov kws kho khoom noj kom zoo nkauj, thiab cov khoom noj kom huv. Sus316, ntawm qhov tod tes, sib xyaw 2-3% Molybdenum, ua kom zoo dua rau pitting, thiab chloride ib puag ncig. Nws corrosion tsis kam yog ntau zoo dua rau sus304, ua rau nws haum ntau rau kev lag luam thiab cov ntawv thov siab yuav tsum tau ua kom muaj ntau dua corrosion.

 

Sus316 Stainless Hlau Phaj Nqe
Sus316 muaj kev ua tau zoo heev vim qhov zoo ntawm Molybdenum, tab sis tus nqi yog li 30-50% ntau dua Sus304. Thaum xaiv, koj yuav tsum hnyav ib puag ncig corrosiveness, pob nyiaj siv thiab khoom siv lub neej.