ASTM B338 GR1 Titanium Tube

ASTM B 338 Covyog tus qauv specification rau seamless thiab welded titanium raj siv nyob rau hauv condensers thiab tshav kub exchangers.GR1 (Qib 1)qhia txog kev lag luam ntshiab titanium nrog cov pa oxygen qis tshaj ntawm cov qib titanium -0.18% siab tshaj.

 

Cov ntsiab lus tsis tshua muaj oxygen muab GR1 qhov siab tshaj plaws ductility thiab tawg toughnessntawm ib qho kev lag luam ntshiab titanium qib. Qhov no txhais tau hais tias lub raj tuaj yeem khoov tau hnyav, flared, dov rau hauv cov ntawv raj, lossis sib sib zog nqus kos yam tsis muaj tawg. Fabricators nyiam GR1 thaum cov txheej txheem tsim ua nruj heev.

 

Nyob rau hauv cov nqe lus ntawm corrosion kuj,GR1 ua tau zoo raws li qib siab dua -qib titanium hauv feem ntau cov tshuaj lom neeg thiab dej hiav txwv. Nwsresists pitting thiab crevice corrosion nyob rau hauv seawater thiab chlorinated brinesqhov twg 316L stainless hlau yuav poob nyob rau hauv lub hlis.

 

Ntau tus neeg yuav khoom xav tias lub zog tensile siab dua yog ib txwm zoo dua. Qhov ntawd tsis yog lawm.

Qib	Yield zog (min)	Cov khoom tseem ceeb	Daim ntawv thov zoo tshaj plaws
GR 1	138 MPa rau	Siab tshaj formability	Khoov hnyav, kos duab tob, U-khoov
GR 2	275 MPa rau	Balanced zog/formability	Lub hom phiaj dav dav, feem ntau cov khoom siv hluav taws xob
GR5 (Ti-6Al-4V)	827mpa ua	Siab zog	Aerospace, qauv, tsis yog rau dov

 

Yog tias koj lub raj yuav dov lossis nthuav dav tom qab vuam, GR1 feem ntau yog qhov kev xaiv raug.GR2 muaj zog dua tab sis tsawg dua ductile. GR5 yog ib qho nyuaj heev rau lub raj xa ntawv nthuav dav thiab tseem kim dua.

 

Tsis txhob qhia GR5 rau cov cua kub exchanger tubing tshwj tsis yog tias koj muaj lub zog tshwj xeeb.Koj yuav them ntau dua thiab tsim teeb meem fabrication.

Tau Txais Cov Qauv Dawb & Kev Ntsuas

 

Cov lus hauv qab no qhia txog cov kev txwv uas tseem ceeb thaum lub sij hawm tau txais cov khoom kuaj xyuas.Ua tib zoo saib xyuas cov pa oxygen, hlau, thiab elongation.

Parameter	ASTM B338 GR1 Yuav tsum tau muaj	Vim li cas cov neeg yuav khoom kuaj qhov no
Oxygen (max)	0.18%	Ncaj qha cuam tshuam ductility- qis dua yog qhov zoo dua rau kev tsim
Hlau (max)	0.20%	Cov hlau ntau dhau txo qhov kev tiv thaiv corrosion hauv cov kua qaub
Nitrogen (max)	0.03%	High nitrogen ua rau embrittlement
Cov pa roj carbon (max)	0.08%	Txheem impurity txwv
Hydrogen (max)	0.015%	High hydrogen ua rau hydride tsim thiab tawg
Tensile zog (min)	240 MPa	Tsim nyog rau cov cuab yeej siv siabtsis dhau -tsim
Yield zog (min)	138 MPa rau	Tsawg tawm los =yooj yim expansion thiab khoov
Elongation (min)	24%	Tseem ceeb rau U-khoov raj- qis dua 20% yog tus chij liab
Hardness (HRB max)	70	Cov khoom muag muag=qis machining nqi thiab tsis muaj kev ntxhov siab tawg

 

Cov neeg yuav khoom hauv cov kev lag luam no tsis tu ncua xaj ASTM B338 GR1:

Plhaub thiab raj kub exchangers- txias nrog dej hiav txwv lossis dej khov

Lub zog cog condenser- tiv thaiv ammonia thiab chloride nres

Marine cua txias systems- dej ntsev raug txhua lub voj voog

Sib sib zog nqus kos titanium qhov chaw- yuav tsum tau ductility heev

Hydraulic txoj kev- GR1 yog tus qauv qib

Chemical siab hlab ntsha- qhov twg crevice corrosion yog qhov paub txog kev pheej hmoo

 

Yog tias koj cov kua dej ua haujlwm muaj cov tshuaj chlorides siab dua 200 ppm ntawm qhov kub siab tshaj 60 degree, 316L stainless hlau yuav yog qhov kawg. GR1 yuav tsis.

 

Qhov nto tiav ntawm lub titanium raj tsis yog hais txog qhov tsos.Nws ncaj qha cuam tshuam rau corrosion kuj, fouling nyiam, thiab kev txhim kho kev ua tiav.Hauv qab no yog cov txheej txheem tiav kev xaiv muaj rau ASTM B338 GR1 hlab thiab thaum twg los qhia txhua.

Hom tiav	Kev piav qhia	Daim ntawv thov	Vim li cas cov neeg yuav khoom xaiv qhov no
Raws li -Drawn (Mill Finish)	Direct los ntawm kos duab tuag nrog residual lubricant thiab oxide nplai	Kev khaws cia ib ntus lossis ua haujlwm ntxiv	Tus nqi qis tshaj.Tsis yog rau kev pabcuam ncaj qha- yuav tsum tau ntxuav ua ntej siv
Pickled	Chemically stripped ntawm oxide nplai thiab cov kab mob	Thaum tshav kub kub exchangers, condensers, tshuaj siv	Standard rau cov neeg yuav khoom feem ntau.Lub ntsej muag huv si, zoo li matte zoo li, npaj rau kev teeb tsa
Polished (Mechanical)	Buffed rau ib tug du, reflective nto	Kev siv huv si, kev ua zaub mov, tshuaj	Txo fouling thiab biofilm loj hlob.Kev ntxuav yooj yim dua
Bead Blasted	Fine iav los yog ceramic hlaws dai tsim ib qho satin tiav	Architectural, marine pom Cheebtsam	Hide tuav cov cim.Zoo rau kev raug dej ntsev
Pickled + Passivated	Pickled ua raws li acid passivation kom ua kom cov oxide ntau tshaj	High -kev pabcuam tshuaj lom neeg, kev lag luam semiconductor	Maximum corrosion kuj.Tshem tawm tag nrho cov kab mob hlau nto
Emery Rolled	Lub teeb mechanical polish los ntawm emery ntaub yob	Instrument tubing, hydraulic kab	Smooth nto nrogzoo heev tube ntawv sealing zog

 

Uas tiav Koj Yuav Tsum Qhia?

Rau cov txheej txheem kub exchanger los yog condenser kev pab:qhiaPickled. Qhov no tshem tawm qhov tsim oxide nplai thiab tawm ntawm qhov chaw huv huv.Tsis txhob txais raws li - kos cov raj rau kev teeb tsa ncaj qha- cov roj nplua nyeem tuaj yeem ua rau koj lub cev thiab cov oxide txheej yuav nkaum qhov tsis xws luag.

 

Rau dej hiav txwv los yog dej khov dej txias:qhiaPickledlos yogPickled + Passivated. Cov kauj ruam passivation ua kom lub siab tshaj plaws tiv thaiv oxide txheej, uastxo qhov kev pheej hmoo ntawm crevice corrosion ntawm raj - mus rau -tubesheet pob qij txha.

 

Rau zaub mov, tshuaj, los yog siab - dej huv:qhiaPolishedlos yogPickled + Passivated. Lub ntsej muag dutiv thaiv kab mob txuas thiab yooj yim rau kev ntxuav.

 

Rau hydraulic lossis ntsuas kab:qhiaEmery Rolled. Cov sab nrauv dumuab zoo sealing nrog compression fittingspiv rau pickled los yog raws li -kos tiav.

Sib tham txog koj qhov kev xav tau ntawm qhov project

 

Mill Test Certificate rau EN 10204 Hom 3.1- yuav tsum qhia qhov tseeb ntawm cov pa oxygen, hlau, thiab hydrogen

Hydrostatic test report- xav tau rau cov raj kub exchanger

Eddy tam sim no (ET) lossis ultrasonic (UT) daim ntawv qhiaRaws li ASTM B338

Dimensional soj ntsuam daim ntawv qhia- OD, phab ntsa, ntev, ncaj

Khoom siv traceability- txhua lub raj muaj cov lej kub

 

Rau cov phiaj xwm tseem ceeb, thov thib peb -kev tshuaj xyuas los ntawm SGS, BV, lossis TÜV ua ntej xa khoom.Tus nqi yog me me piv rau kev hloov cov raj ua tsis tau zoo hauv kev ua haujlwm kub hloov pauv.

 

1. Qhov txawv ntawm ASTM B338 GR1 thiab GR2 yog dab tsi?
GR1 muaj cov pa oxygen qis dua (0.18% vs 0.25% max) thiab qis qis zog (138 MPa vs 275 MPa).GR1 yog qhov muaj zog ntau duathiab yooj yim rau khoov yam tsis muaj cracking. GR2 muaj zog dua tab sis tsawg formable.

 

2. Puas yog GR1 titanium raj siv tau rau hauv dej hiav txwv?
Yog lawm. GR1 resists crevice corrosion nyob rau hauv dej hiav txwv txog li 120℃(250℃F). Saum toj no qhov kub thiab txias, qhia GR7 los yog GR12 kom zoo siab - kub stability.

 

3. Puas yog GR1 xav tau kev kho cua sov tom qab vuam?
Tsis yog. GR1 tsis yog cua sov- kho tau. Kev tiv thaiv argon kom zoo thaum vuam yog qhov yuav tsum tau ua.

 

4. Qhov siab tshaj plaws rau lub raj GR1 yog dab tsi?
Nyob ntawm OD thiab phab ntsa thickness. Rau ib tug raug 25.4 hli OD x 1.65 hli phab ntsa raj ntawm chav tsev kub, cia siab yog roughly 1,500 psi ib ASME Tshooj VIII. Hu rau tus kws tshaj lij kav kav dej rau koj cov xwm txheej tshwj xeeb.

 

5. Puas yog welded GR1 raj siv tau rau cov khoom siv hluav taws xob?
Yog lawm, ASTM B338 tso cai rau ob leeg seamless thiab welded - thiab - kos (W&D) raj. Cov raj welded yog kev lag luam ntau dua.Seamless yog nyiam rau siab tshaj 500 psilos yog qhov twg weld seam corrosion yog ib qho kev txhawj xeeb.

 

6. Yuav ua li cas koj txiav GR1 titanium raj kom raug?
Siv lub tshuab ziab khaub ncaws nrog carbide-tipped blades lossis band saw nrog 24 TPI hniav.Tsis txhob siv abrasive txiav log- lawv ua rau muaj cua sov hauv cheeb tsam thiab muaj cov kab mob sib kis.

 

7. Puas yog GR1 titanium hlau nplaum?
Tsis yog. Titanium yog paramagnetic. Qhov no tseem ceeb rau cov ntawv thov nyob ze cov khoom siv hluav taws xob lossis cov khoom sib nqus resonance.

 

8. Lub sijhawm ua haujlwm twg kuv yuav tsum cia siab rau ASTM B338 GR1 raj?
Qhov ntau thiab tsawg (19 hli, 25.4 hli OD) feem ntau tau ntim khoom thiab xa tuaj hauv 2-3 lub lis piam. Kev cai seamless qhov ntau thiab tsawg los yog phab ntsa hnyav yuav tsum tau 6-8 lub lis piam los ntawm kev txiav txim zeb.

 

9. Puas tuaj yeem GR1 kov stainless hlau lossis tooj liab alloys hauv kev pabcuam?
Hauv dej hiav txwv, titanium yog cathodic txheeb ze rau tooj liab alloys. Kev sib cuag ncaj qha yuav ua rau galvanic corrosion ntawm tooj liab. Siv cov khoom sib cais los yog cov coatings. Kev sib cuag nrog cov hlau tsis muaj steel feem ntau yog siv tau tab sis tsis txhob crevices.

 

10. Cov ntawv pov thawj dab tsi uas tus neeg muab khoom GR1 yuav tsum muab?
Yam tsawg kawg nkaus: Mill Test Certificate per EN 10204 3.1, hydrostatic test report, and material traceability stamps. Rau qhov kev pabcuam tseem ceeb, yuav tsum muaj kev tshuaj xyuas thib peb - tog (SGS, BV, TÜV).

 

11. Puas yog GR1 titanium raj raug nqi ntau dua 316L stainless?
Yog, tus nqi ntawm cov khoom yog siab dua.Tab sis tag nrho cov nqi lifecycle feem ntau qis duavim GR1 tsis corrode hauv chloride kev pab. Koj tsis txhob hloov pauv, downtime, thiab cov khoom poob.

 

12. GR1 puas tuaj yeem siv rau kev pabcuam hydrogen?
Nrog ceev faj. Titanium tuaj yeem tsim hydrides siab tshaj qhov kub thiab txias. Nrog rau cov khoom siv hluav taws xob rau kev pabcuam hydrogen saum 80℃lossis 10 MPa.

 

Qhia rau ASTM B338 GR1 titanium raj thaum koj xav tau:

High ductility rau qhov txias txias txias los yog U- dabtsi yog khoov

Corrosion kuj nyob rau hauv seawater, chlorides, los yog acidic brine

Lub teeb nyhav piv rau stainless hlau lossis tooj liab-nickel alloys

Ib yam khoom uas yog weldable thiab tsis xav tau tom qab-weld kev kho cua sov

 

Tsis txhob qhia GR1 thaum koj xav tau:

Lub zog siab tshaj 240 MPa tensile - siv GR2 lossis GR5

Qhov siab tshaj plaws hardness lossis hnav tsis kam - titanium tsis yog hnav -cov hlau tsis muaj zog

Cov khoom siv tau qis tshaj plaws - siv 316L yog tias tsis muaj chlorides

 

Rau ib nqe lus, xa koj OD, phab ntsa thickness, ntev, thiab ntau. suav nrog cov kev cai tshwj xeeb xws li U- khoov, thib peb- tog tshuaj ntsuam xyuas, lossis qhov ua tiav. Peb yuav teb nrog kev lag luam thiab daim ntawv pov thawj zeb qauv hauv ib hnub ua haujlwm.

 

Peb lub chaw yog nruab nrog titanium tube ntau lawm kab, suav nrog txias pilger mills, kos lub rooj ntev zaum, thiab argon - puv annealing furnaces tshwj xeeb calibrated rau kev lag luam ntshiab titanium.Rau cov welded raj, peb siv tsis siv neeg TIG vuam chaw nres tsheb nrog online eddy tam sim no saib xyuas cov weld seam tsis xws luag nyob rau hauv lub sij hawm.Cov cuab yeej tshuaj xyuas suav nrog tag nrho - spectrum spectrometer rau kev tshuaj xyuas tshuaj, lub ntsuas ntsuas ntsuas ultrasonic rau cov raj seamless, thiab lub ntsuas dej hydrostatic ntsuas rau 10,000 psi.Tag nrho cov raj tiav dhau los ntawm laser micrometer rau OD thiab phab ntsa thickness ntsuas.Peb lub chaw soj nstuam zoo tswj hwm tus ntoo khaub lig ywj siab- kuaj xyuas txhua qhov kub, thiab tag nrho cov cuab yeej tshuaj xyuas tau ntsuas txhua xyoo rau NIST-cov qauv ntsuas tau. Qhov kev teeb tsa no tso cai rau peb los tsim cov ASTM B338 GR1 cov hlab ntsha uas ua tau raws li qhov xav tau lossis tshaj qhov yuav tsum tau ua kom muaj zog thiab ua haujlwm corrosion.

Tshawb xyuas Hnub no Cov Tshuag & Lub Sijhawm Lead

 

Cim npe nrov: astm b338 gr1 titanium raj, Tuam Tshoj astm b338 gr1 titanium raj manufacturers, lwm tus neeg, Hoobkas, lag luam wholesale