Dab tsi yog qhov txawv ntawm S31803 thiab 316?

Dab tsi yogS31803 Cov Khoom Siv Yeeb Nkab?
S31803 yeeb nkab yog tsim los ntawm duplex stainless hlau, lub siab {1} - extleative alloy nrog obsces thiab ferrite pases. Kuj tseem hu ua 2205 chav hlau dulex, nws muaj cov tshuaj muaj txiaj ntsig zoo rau cov roj thiab roj av thiab siv tshuaj lom.

Dab tsi yog S31803 cov khoom sib npaug rau?

S31803 yog lub duplex stainless hlau raws li cov chromium cov ntsiab lus ntawm 22% thiab tseem tuaj yeem hais txog li DIN 1.4462 thiab AVE182 F51 thaum muab khoom raws li ib ncig ntawm ib ncig.

Dab tsi yog316 SS Cov Yeeb Nkab?

316 SS cov yeeb nkab yog molybdenum -} muaj cov hlau tsis muaj txiaj ntsig muaj nyob rau hauv cov khoom siv tsis sib xws thiab kev teeb tsa weldigurations. Nws muaj cov tshuaj tiv thaiv corrosion zoo heev, tshwj xeeb rau cov kab chlorides thiab cov acids, thiab muaj cov khoom siv muaj zog ntawm ob qho siab thiab qis kub. Kev hloov kho los ntawm 304 stainless hlau, nws yog dav siv nyob rau hauv ib puag ncig cov tshuaj lom neeg, cov ntawv thov cov khoom noj, cov khoom noj thiab cov khoom siv cryogenic.

Tshuaj lom neeg muaj pes tsawg leeg (%)

Lub ntsiab	S31803 (UNRY S31803 / DUPLEX 2205)	316 (unsal S31600 / EN 1.4401)
Chromium (cr)	21.0 – 23.0	16.0 – 18.0
Npib tsib caug (ni)	4.5 – 6.5	10.0 – 14.0
Molybdenum (mo)	2.5 – 3.5	2.0 – 3.0
Nitrogen (n)	0.08 – 0.20	Tsawg dua los yog sib npaug rau 0.10
Carbon (c)	Tsawg dua los yog sib npaug rau 0.03	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
Silicon (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 0.03	Tsawg dua los yog sib npaug rau 0.045
Sulphur (s)	Tsawg dua los yog sib npaug rau 0.02	Tsawg dua los yog sib npaug rau 0.03
Hlau (FE)	Seem	Seem

Cov Khoom Siv Neeg Kho Tshuab (Chav Sov)

Ntiag tug	S31803 (Duplex 2205)	316 (Austenic)
Tensile lub zog (mpa)	Ntau dua los yog sib npaug rau 620	Ntau dua los yog sib npaug rau 515
Yield zog (0.2% pov thawj, MPA)	Ntau dua los yog sib npaug rau 450	Ntau dua los yog sib npaug rau 205
Elongation (%)	Ntau dua los yog sib npaug rau 25	Ntau dua los yog sib npaug rau 40
Hardness (HB)	Tsawg dua los yog sib npaug rau 290	Tsawg dua los yog sib npaug rau 217
Kev cuam tshuam cov tawv (Charpy V, J)	Ntau dua los yog sib npaug rau 100 (ntawm rt)	Zoo heev, tsis yog feem ntau teev

Cov Khoom Siv Lub Cev

Ntiag tug	S31803 (Duplex 2205)	316 (Austenic)
Ntom ntom (g / cm³)	7.80	8.00
Elastic modulus (GPA)	200	193
Thermal conductivity (W / MIN K, ntawm 20 degree)	~19	~16
Hluav taws xob tiv thaiv hluav taws xob (· m, ntawm 20 degree)	~0.85	~0.74
Thaum tshav kub kub (J / KGB · K, ntawm 20 degree)	500	500
Coefficient ntawm thermal expansion (μm / M-epl, 20-100 degree)	13.0	16.5

 

Lub zog thiab corrosion tsis kam
UNRIVTIVE S31803 muaj kwv yees li ob zaug tawm los piv rau SS316.Qhov chaw nyob ze rau 34 xyoo yog 25, lub ntsiab lus tias nws muaj qhov tsis tshua muaj txiaj ntsig rau pitting corrosion.

 

Kub tiv thaiv

SS 316 kuj tseem zoo dua haum rau qhov siab-} sov daim ntawv thov tshaj li uns uns tsis s31803 stainless hlau. Nws tuaj yeem tiv thaiv kub txog 1500 degrees Fahrenheit yam tsis tau poob nws lub zog lossis ua nkig.

 

Tus nqi thiab cov ntawv thov txwv
SS316 feem ntau tsawg dua tsis tau kim S31803 thiab yuav raug xaiv raws li qhov ua tau nqi lossis tsawg dua -50℃(ntau dua 250 degree), yog li ntawd, yog li ntawd, yog li cov ntawv thov SS316.

 

Yog tias koj muaj lub phiaj xwm xav tau rau 316 stainless tus me nyuam ci analaled tubing, peb zoo siab txais tos koj daim ntawv xaj. Gnee muaj cov khoom lag luam loj ntawm cov khoom nrov rau koj xaiv los ntawm. Peb muab cov qauv khoom siv cov tswv yim zoo, suav nrog kev ua tsis taus thiab welded. Txhawm rau kom ntxaws tshuaj muaj pes tsawg leeg tshuaj thiab kuaj dawb, thov hu rau peb lub Hoobkas niaj hnub no. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.

Nyem qhov no kom tau txais SS316pipe cov ntawv qhia tshwj xeeb