Dab tsi yog qhov tso cai kev ntxhov siab rau A283 Qib C?
SA 283 Qib C Khoom Taw Qhia
SA 283 Qib C yog cov pa roj carbon steel phaj specification los ntawm ASME (American Society of Mechanical Engineers) Boiler thiab Pressure Vessel Code, Tshooj II, Ntu A. Nws yog ib qho dav dav - lub hom phiaj, qis rau nruab nrab tensile lub zog steel feem ntau siv rau kev siv cov qauv thiab nruab nrab siab.
Nws qhov ze tshaj plaws thiab feem ntau lees txais qhov sib npaug yog nyob rau hauv ASTM A283 specification thiab thoob ntiaj teb cov qauv.
Qhov kev ntxhov siab tso cai rau SA-283 Qib C tsis yog ib tus lej universal-nws yog txiav txim siab los ntawm kev tswj hwm tus qauv tsim thiab qhov kub ntawm daim ntawv thov.Rau nws feem ntau siv hauv ASME Boiler thiab Pressure Vessel Code (BPVC) Tshooj VIII, Division 1 siab hlab ntsha, ntawm no yog cov txiaj ntsig tseem ceeb.
ASME Seem VIII, Div. 1 Tso Cai Kev Nyuaj Siab
Cov txiaj ntsig muaj nyob hauv ASME Tshooj II, Ntu D, Table 1A. Hauv qab no yog cov feem ntau cuam tshuam rau phaj.
Ntawm chav kub (txog 650℃F / 343 degree):
Rau Phaj Tsawg dua lossis sib npaug li 1/2 nyob rau hauv. (12.7 mm) tuab:
13.0 ksi (89.6 MPa) - Qhov no yog tus nqi ntau tshaj plaws.
Rau Phaj > 1/2 in. to 4 in. thickness:
13.0 ksi (89.6 MPa) - * Lus Cim: Rau A283 Qib C, tus nqi tsis txo qis nrog thickness zoo li qee qhov siab dua - lub zog steels.*
Ntawm qhov kub siab:
Qhov tso cai rau kev ntxhov siab txo qis nrog qhov kub thiab txias. Qee cov ntsiab lus tseem ceeb:
700℃F (371 degree): 12.9 ksi (88.9 MPa)
750℃F (399 degree): 9.2 ksi (63.4 MPa)
800℃F (427 degree): 5.5 ksi (37.9 MPa)
Qhov kub siab tshaj plaws: Kev siv SA-283 Qib C feem ntau txwv rau 850℃F (454 degree) ntawm ASME cov lus ntxhov siab, tab sis cov qauv siv tswv yim feem ntau txwv nws kom qis qis vim muaj zog poob.
Yuav ua li cas cov nuj nqis no tau muab los
Raws li ASME cov cai, qhov kev ntxhov siab uas tau tso cai (S) ntawm chav tsev kub yog qhov qis tshaj ntawm cov hauv qab no, raws li cov khoom siv tau teev tseg yam tsawg kawg nkaus:
1/4 ntawm qhov tsawg kawg nkaus tensile lub zog (55 ksi / 4=13.75 ksi)
2/3 ntawm qhov tsawg kawg nkaus yield zog (30 ksi * 2/3=20.0 ksi)
Qhov kev tswj xyuas yog lub zog tensile, uas ua rau 13.0 ksi (uas yog me ntsis kev saib xyuas los ntawm kev suav 13.75 ksi, suav nrog kev sib tw thiab kev ua qauv hauv lub rooj).
Summary Table (ASME VIII-1)
| Kub | Tso cai Stress (S) rau phaj |
|---|---|
| Tsawg dua lossis sib npaug li 650℃F | 13.0 tsi (89.6 MPa) |
| 700℃F | 12.9 ksi (88.9 MPa) |
| 750℃F | 9.2 ksi (63.4 MPa) |
| 800℃F | 5.5 ksi (37.9 MPa) |
| 850℃F | 3.3 ksi (22.8 MPa) |
Cov lus qhia zaum kawg thiab tseem ceeb tshaj plaws:Ib txwm txheeb xyuas qhov kev ntxhov siab uas tso cai los ntawm tsab ntawv tshaj tawm tshiab ntawm ASME Code (Tshooj II, Ntu D) uas raug yuam rau koj qhov project. Tsis txhob cia siab rau tus nqi los ntawm phau ntawv qub lossis nco. Rau cov ntawv thov tseem ceeb, kev siv SA-283 Qib C yuav tsum tau ua tib zoo soj ntsuam cov ntaub ntawv zoo dua qub xws li SA-516.
SA 283 Qib C sib npaug li cas?
ASME SA 283 Gr C cov khoom sib npaug hauv EN tus qauv yog S235JR steel. S235JR steel muaj zoo plasticity, toughness thiab weldability, tej lub zog thiab zoo txias dabtsi yog khoov zog.
ASTM A283 Qib C yog dab tsi?
ASTM A283 Qib C yog qhov tshwj xeeb rau qis thiab nruab nrab tensile lub zog carbon steel daim hlau ntawm cov qauv zoo rau kev siv dav dav. ASTM A283 Qib C muaj qhov ntsuas qhov ua tau zoo ntawm 30 ksi.
Qhov txawv ntawm A283 C thiab A36 C yog dab tsi?
A36 muaj cov ntsiab lus qis dua piv rau A283 Qib C, ua rau nws yooj yim rau vuam thiab ductile ntau dua. Mechanical Properties: A283 Qib C: siab zog thiab siab yield point piv rau A36, ua rau nws haum rau siab - siv zog.
Dab tsi yog qhov tso cai kev ntxhov siab rau A283 Qib C?
Cov qib carbon feem ntau, suav nrog Sa 283 Gr C, muaj qhov siab tshaj plaws tso cai ntawm 13,750psi.
Qhov txawv ntawm SA 283 C thiab SA 36 yog dab tsi?
Alloy Composition
Cov kev sib txawv no qhia tias A36 yuav nyiam rau cov ntawv thov uas xav tau lub zog ntau dua thiab ua rau qaug zog zoo dua, thaum SA283 Qib C tuaj yeem tsim nyog rau cov ntawv thov uas cov khoom siv zog me ntsis tau txais thiab muaj peev xwm raug nqi ntau dua - zoo.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
