ASTM A671 CC65 Class 40 Pipe yog dab tsi?
ASTM A671 CC65 Class 40 yeeb nkab yog ib qho hluav taws xob - fusion-welded (EFW) steel yeeb nkab uas tsim los ntawm lub siab- nkoj- zoo phaj thiab ua tiav nrog cov muab tub lim - hlau longitudinal seam. Nws belongs rau ASTM A671/A671M, qhov tshwj xeeb rau EFW yeeb nkab nyob rau hauv atmospheric thiab qis dua- qhov kub thiab txias kev pab cuam, thiab nws raug txiav txim qhov twg ib tug txias - sab kab xav tau loj txoj kab uas hla los yog ib tug hnyav phab ntsa uas yog impractical nyob rau hauv seamless daim ntawv.
65 hauv qib yog qhov tsawg kawg nkaus tensile lub zog nyob rau hauv ksi (448 MPa), siab tshaj 60 qib thiab yog li ntawd pab tau qhov twg tsim siab los yog txhawb qhov sib txawv nyiam lub phaj muaj zog. CC yog pawg ntawv qib uas txhais cov kev kho cua sov-kev kho thiab cuam tshuam- txoj kev kuaj, thiab Chav Kawm 40 yog cov khoom siv phaj thiab cov kev xeem uas tau xaiv los ntawm lub rooj txiav txim ntawm cov lus qhia tshwj xeeb.
Hauv kev ua haujlwm txias- sab txheej txheem cov yeeb nkab yuav tsum ua kom nws qhov tsis zoo ntawm qhov ntsuas kub ntawm cov hlau, yog li qhov ntsuas kub ntawm qhov kev txiav txim yog qhov tseem ceeb raws li qib nws tus kheej.
Qib, Chav Kawm thiab Kev Xeem Xeem
| Yam khoom | Kev xav tau |
|---|---|
| Specification | ASTM A671 / A671M, EFW yeeb nkab rau atmospheric thiab qis dua |
| Qib | CC65, qib ntawv pawg CC nrog 65 ksi (448 MPa) qib tensile yam tsawg kawg nkaus |
| Chav kawm | Chav Kawm 40, cov khoom siv phaj thiab kuaj mob los ntawm A671 lub rooj xaj |
| Seam | Longitudinal seam welded nrog muab tub lim hlau, ib leeg lossis ob chav welded |
| Toughness | Charpy V-qhov ntsuas qhov cuam tshuam ntawm qhov ntsuas qhov ntsuas kub |
| Weld xeem | Radiographic lossis ultrasonic kuaj ntawm tag nrho cov seam |
| Kev ntsuas siab | Kev ntsuam xyuas hydrostatic raws li qhov tshwj xeeb tshwj tsis yog raug txiav txim |
| Kev kho cua sov | Raws li -welded, kev nyuaj siab-relieved los yog normalized raws li tau txiav txim |
Cov pob kev lees paub muab cov tshuaj ntsuam xyuas ntawm lub phaj, cov txiaj ntsig tensile ntawm qib 65 ksi, cuam tshuam lub zog ntawm qhov ntsuas kub, cov ntaub ntawv kuaj xyuas seam thiab cov txiaj ntsig kuaj hydrostatic. Qhov twg cov yeeb nkab yuav tsum tau welded rau ntawm qhov chaw, cov ntaub ntawv no feem ntau yog lub hauv paus rau cov txheej txheem tsim nyog thiab rau cov neeg tau txais kev soj ntsuam.
Tsim, Vuam thiab Kev Tswj Xyuas Zoo
Phaj yog txiav kom loj thiab dov mus rau qhov txiav txim txoj kab uas hla; cov npoo tau npaj thiab cov seam yog welded nrog cov hlau muab tub lim raws li tus txheej txheem tsim nyog. Weld consumables yog matched rau 65 ksi phaj kom cov seam mus txog lub zog xav tau ntawm cov yeeb nkab lub cev.
Radiographic lossis ultrasonic kuaj ntawm tag nrho cov ntaub ntawv seam weld soundness, thiab ib qho kev kho yuav raug kaw los ntawm cov lus qhia thiab rov- tshuaj xyuas rau tib tus qauv. Kev kho cua sov ua raws li qhov kev txiav txim, thiab qhov kev xa khoom tau teev tseg ua ke nrog cov txiaj ntsig kev xeem kom cov yeeb nkab tuaj yeem ua raws li qhov yuav tsum tau ua.
Txias -Side Process Piping Applications
CC65 Class 40 yeeb nkab yog siv rau txias - sab txheej txheem kab hauv kev kho roj, ua cov roj liquefied, tub yees thiab qis - qhov kub thiab txias ntawm cov nroj tsuag tshuaj thiab petrochemical, thiab rau cov khoom sib txuas thiab cov headers uas ntev welded khiav yog nyiam.
65 ksi phaj qib muab cov txiaj ntsig zoo tshaj cov qib qib carbon steel rau lub luag haujlwm siab, thaum lub welded hom ua kom txoj kab uas hla thiab phab ntsa hloov tau yooj yim thiab muab cov ntaub ntawv seam zoo nyob rau hauv qhov chaw cia siab rau kev tshuaj xyuas qhov muag.
Ordering, Inspection thiab Handling Notes
Cov lus qhia tshwj xeeb, qib, chav kawm, qhov loj me, phab ntsa thickness, ntev thiab cuam tshuam qhov ntsuas kub ua ke.
Match weld consumables thiab txheej txheem tsim nyog rau qib 65 ksi phaj.
Thov tag nrho -cov ntaub ntawv soj ntsuam cov hlua khi thiab cov ntaub ntawv kuaj hydrostatic nrog cov khoom xa tuaj.
Tshawb xyuas cov lej ntsuas kub tiv thaiv qhov cim, daim ntawv xeem thiab daim ntawv pov thawj phaj thaum tau txais.
Tiv thaiv beveled xaus thiab khaws cov av nkos, dej thiab carbon steel offcuts.
FAQ
Q: Dab tsi yog qhov tensile qib ntawm CC65 yeeb nkab?
Tus lej hauv qib yog qhov tsawg kawg nkaus tensile lub zog hauv ksi, yog li CC65 yeeb nkab yog tsim rau 65 ksi (448 MPa) qhov tensile yam tsawg kawg nkaus.
Q: Chav Kawm 40 cuam tshuam li cas rau cov khoom?
Nws xaiv cov khoom siv phaj thiab kuaj mob los ntawm lub rooj txiav txim ntawm ASTM A671, thiab nws ib txwm hais ua ke nrog qib, qhov loj thiab phab ntsa.
Q: Puas yog cov yeeb nkab cuam tshuam kuaj?
Yog lawm, qhov twg tau txiav txim rau qis- qhov kev pabcuam kub: Charpy V- qhov ntsuas ntsuas tau ua nyob rau ntawm qhov ntsuas kub tau teev nyob rau hauv daim ntawv xaj yuav khoom.
Q: Yuav ua li cas weld soj ntsuam?
Lub seam longitudinal yog tshuaj xyuas los ntawm radiographic lossis ultrasonic txoj kev hla nws tag nrho ntev, thiab cov yeeb nkab tiav yog kuaj hydrostatically.
Q: Qhov twg yog cov yeeb nkab feem ntau siv?
Txias- sab txheej txheem kab, kev kho roj thiab cov roj liquefied, cov tub yees circuits thiab qis - cov khoom siv kub sib txuas.
