ASTM A789 UNS S32205 Duplex Stainless Hlau Tubes

 

S32205 duplex stainless hlau yeeb nkab yog ib hom super duplex stainless hlau yeeb nkab uas muaj 21% chromium, 2.5% molybdenum, thiab 4.5% nickel nitrogen alloy. Cov tshuaj muaj pes tsawg leeg ntawm S322{{10}}5 duplex stainless hlau yeeb nkab suav nrog chromium (Cr) 22.{{20}}%-23.0% , npib tsib xee (Ni) 4.5% -6.5%, molybdenum (Mo) 3.0% -3.5%, manganese (Mn) txog 2.0%, thiab nitrogen (N) cov ntsiab lus ntawm 0.14% mus txog 0.20%. Cov khoom no muab cov khoom tshwj xeeb rau S32205 stainless hlau yeeb nkab.

A789 S32205 Duplex Stainless Pipe Specification

Txuj: ASTM A789, ASME SA789

Hom: Seamless, Welded

Loj: Customized Loj

Phab ntsa Thickness: 0 5 - 12.7MM

Ntev: 1-12m Los yog Raws li Koj Xav Tau

Test: Corrosion Test, Chemical Analysis, Mechanical Testing, thiab lwm yam.

Daim Ntawv Thov: Kev Tsim Kho, Kev Lag Luam, Boiler, thiab lwm yam.

SA789 S32205 Duplex Steel Pipe Chemical Composition

UNS npe	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu	Lwm tus
S32205	0.030	2.00	0.030	0.020	1.00	4.5–6.5	22.0–23.0	3.0–3.5	0.14–0.20	. . .	. . .

A789 S32205 Duplex Stainless Hlau Yeeb

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Kev Xeem Tshwj Xeeb rau S32205 Super Duplex Stainless Hlau Yeeb Nkab:

1. Tensile thiab Hardness Tests:
Piv nrog rau austenitic stainless hlau, duplex stainless hlau muaj lub zog siab, tab sis qee zaus cov neeg siv kev xav tau yuav qhia qhov siab tshaj plaws rau lub zog lossis hardness. Kev taw qhia txog qhov muaj txiaj ntsig siab tshaj plaws rau lub zog lossis hardness tuaj yeem kos los ntawm cov kev paub ntawm martensitic stainless hlau, qhov siab zog thiab hardness tshwm sim los ntawm untempered martensite. Txawm li cas los xij, duplex stainless hlau tsis tsim martensite thaum txias. Nws lub zog siab thiab hardness yog vim nws cov ntsiab lus nitrogen siab, nws cov qauv dual-theem, thiab kev ua haujlwm nyuaj uas yuav tshwm sim thaum lub sijhawm ua haujlwm lossis kev ua haujlwm ncaj.
Kev ntsuam xyuas hardness yog ib qho txiaj ntsig zoo ntawm kev ua kom pom tias kev ua haujlwm txias heev tsis tau tshwm sim thaum ua haujlwm. Txawm li cas los xij, thaum kev ntsuas hardness yog siv rau lub hom phiaj no, nws yog ib qho tseem ceeb uas qhov ntsuas qhov chaw nyob nruab nrab ntawm qhov chaw thiab qhov chaw ntawm qhov chaw hla, es tsis yog ntawm qhov chaw uas qhov chaw hardening thiab deg hardening tshwm sim.

2. Khoov Test:
Kev ntsuas khoov tuaj yeem ua rau pom tau tias cov khoom tsis tau dhau los ua cov kab nrib pleb, tab sis nws yuav nyuaj rau cov ntu loj, me me, lossis qee cov duab geometric ntawm cov khoom. Kev ntsuas khoov tsis yog qhov ntsuas qhov ntsuas qhov zoo ntawm duplex stainless hlau vim tias qhov taw tes khoov yuav tsis ua raws li thaj chaw ntawm kev tsis sib haum xeeb. Vim yog qhov kev taw qhia ntawm kev khoov, qee yam mob xws li cov theem intermetallic raws li qhov nruab nrab yuav tsis pom.
Kev ntsuam xyuas khoov feem ntau yog ib feem ntawm cov txheej txheem vuam tsim nyog rau austenitic stainless hlau, vim tias muaj kev pheej hmoo ntawm kub tawg hauv welds, tshwj xeeb tshaj yog rau cov qauv vuam nrog cov ntsiab lus siab austenite. Txij li thaum duplex stainless hlau tsis muaj kev nyiam rau kub tawg, khoov kev ntsuam xyuas tsis muaj txiaj ntsig zoo rau kev ntsuas qhov zoo ntawm qhov vuam. Thaum qhov kev sim khoov tuaj yeem pom qhov ntau tshaj ntawm cov ferrite yog tias qhov chaw kuaj pom zoo sib xws nrog thaj chaw cuam tshuam, nws tsis tuaj yeem kuaj pom qhov muaj me me ntawm cov theem cuam tshuam ntawm intermetallic uas yuav cuam tshuam rau corrosion kuj thiab toughness.

3. Vuam ntau lawm thiab tshuaj xyuas:
Cov teeb meem uas yuav tshwm sim nrog duplex stainless hlau tsis yog ib txwm pom tseeb rau cov welders thiab tsis tuaj yeem kuaj pom los ntawm cov txheej txheem kev kuaj tsis zoo. Welders yuav tsum paub hais tias tag nrho cov zoo ntawm welds nyob ntawm nruj ua raws li cov txheej txheem vuam, ntsuas los ntawm lawv toughness thiab corrosion kuj nyob rau hauv kev siv. Kev sib txawv ntawm cov txheej txheem vuam txheej txheem yuav tsis tas yuav raug kuaj pom hauv lub rooj cob qhia, tab sis txhua qhov sib txawv ua rau muaj kev pheej hmoo rau cov khoom siv kev nyab xeeb thiab kev siv nyiaj txiag.

Cim npe nrov: Tuam Tshoj astm a789 uns s32205 duplex stainless hlau raj manufacturers, lwm tus neeg