Dab tsi yog cov yam ntxwv ntawm SA537 Chav Kawm 1?
SA537 Chav Kawm 1 yog hais txog ASTM A537 / ASME SA537 Chav Kawm 1 steel daim hlau, cua sov- kho, cov pa roj carbon monoxide-manganese-silicon steel tshwj xeeb tsim los rau fusion-welded boilers, siab hlab ntsha, thiab cov tso tsheb hlau luam, muab lub zog siab, peb cov roj siv tau zoo, thiab cov roj siv tau zoo. kev lag luam. Cov yam ntxwv tseem ceeb suav nrog nws cov xwm txheej zoo li qub, txhim kho cov txiaj ntsig / tensile lub zog tshaj cov qib txheem, thiab tsim nyog rau qhov nruab nrab kub thiab qhov siab, nrog rau Charpy V- ntsuas ntsuas qhov ntsuas kub tsawg- kub toughness.
Cov khoom siv kho tshuab ntawm SA537 Chav Kawm 1 yog txhais los ntawm ASTM A537 thiab nyob ntawm cov phaj tuab, raws li tus qauv qhia txo qis zog rau cov ntu tuab.
1. Tensile & Yield Strength (Chav Kub)
| Phaj Thickness (t) | Tensile zog | Yield zog (0.2% Offset) |
|---|---|---|
| t Tsawg dua lossis sib npaug li 1.5 nti (38.1 hli) | 70-90 hli (485-620 MPa) |
50 kwm. (345 MPa min.) |
| 1.5 nti. |
70-90 hli (485-620 MPa) |
46 kwm. (315 MPa min.) |
| 4 nyob rau hauv. |
70-90 hli (485-620 MPa) |
42 kwm. (290 MPa min.) |
Nco tseg:Lub zog tawm los txo qis nrog tuab vim yog kev tsim khoom thiab cua sov- kev txwv kev kho.
2. Ductility (Elongation)
| Thickness Ntau | Elongation hauv 2 nti. (50 mm) Min. |
|---|---|
| t Tsawg dua lossis sib npaug li 0.75 nti (19 mm) | 22% |
| 0.75 nyob rau hauv. |
20% |
| 1.5 nti |
19% |
| t > 2.5 nti (63.5 hli) | 18% |
3. Toughness (Charpy Impact)
Tsis yog qhov yuav tsum tau uanyob rau hauv lub hauv paus specification tshwj tsis yog tau teev los ntawm tus neeg yuav khoom.
Thaum txiav txim (ib txwm rau qis- qhov kub thiab txias), Charpy V- kev ntsuas ntsuas feem ntau ua ntawm -60℃F (-51 degree) lossis lwm qhov ntsuas kub tau pom zoo.
Yam Yuav Tsum Muaj Qhov Tseem Ceeb:Qhov nruab nrab yam tsawg kawg nkaus ntawm 20 ft·lb (27 J) rau cov qauv ntev, lossis 15 ft·lb (20 J) rau cov qauv hloov pauv (ib qho kev xav tau ntxiv S5).
4. Hardness
Feem ntau Tsawg dua los yog sib npaug rau 200 HBW (Brinell) vim yog qhov ua tau zoo / zoo li qub & tempered mob, kom ntseeg tau zoo weldability thiab formability.
5. Kev kho cua sov
SA537 Chav Kawm 1 tau muab rau hauvcaialized (N) lossis normalized thiab tempered (N&T) mob, uas ua kom:
Uniform grain qauv.
Txhim kho toughness thiab ductility.
Kev ntxhov siab.
Lus Cim Tseem Ceeb
Qhov tseeb vs. Yam tsawg kawg nkaus:Mill Test Reports (MTRs) yuav qhia qhov tseeb qhov ntsuas, uas feem ntau tshaj qhov tsawg kawg nkaus (xws li, lub zog tawm los yuav yog 55–60 ksi).
Tus nqi tsim:Rau kev tsim qauv engineering, xa mus rau ASME Boiler thiab Pressure Vessel Code, Tshooj II, Ntu D rau qhov tso cai rau kev ntxhov siab ntawm qhov kub thiab txias.
Sib piv rau Chav Kawm 2:SA537 Chav Kawm 2 (quenched & tempered) muaj zog dua (piv txwv li, min. yield 60 ksi rau nyias daim hlau) tab sis tej zaum yuav muaj me ntsis toughness nyob rau hauv tej thickness ranges.
1.Dab tsi yog SA537 Chav Kawm 1?
SA537 Chav Kawm 1 yog ib qho kev qhia tshwj xeeb rau cov cua sov- kho carbon-manganese- silicon steel daim hlau, feem ntau yog siv rau cov hlab ntsha siab, muab cov kev sib tw zoo ntawm qhov kub thiab txias.
2.Dab tsi yog qhov txawv ntawm SA537 Class 1 thiab Class 2?
Qhov sib txawv tseem ceeb yog kev kho cua sov thiab lub zog. Chav Kawm 1 yog nkag rau hauv qhov normalized lossis kev ntxhov siab -relieved mob nrog qis zog, thaum Class 2 yog quenched thiab tempered, muab ntau zog zog.
3.Dab tsi yog cov khoom siv kho tshuab ntawm SA537 Chav Kawm 1?
Rau cov phaj siab txog 2.5 ntiv tes tuab, cov khoom muaj xws li lub zog tensile yam tsawg kawg nkaus ntawm 70-90 ksi (485-620 MPa) thiab qhov tsawg kawg nkaus lub zog ntawm 50 ksi (345 MPa).
4.Dab tsi yog cov tshuaj muaj pes tsawg leeg ntawm SA537 Class 1?
Nws yog cov pa roj carbon -manganese- silicon steel nrog qhov siab tshaj plaws ntawm 0.24% Carbon, 1.35% Manganese, thiab 0.15-0.50% Silicon, nrog rau kev tswj hwm phosphorus thiab sulfur.
5.Yog SA537 Chav Kawm 1 yog carbon steel lossis hlau alloy?
Nws yog technically cais raws li ib tug siab - zog carbon steel, feem ntau hu ua carbon -manganese- silicon steel, tab sis nws cov khoom yog ua tiav los ntawm kev kho cua sov es tsis muaj cov ntsiab lus siab alloy.
6.Dab tsi yog Charpy cuam tshuam rau SA537 Chav Kawm 1?
SA537 Chav Kawm 1 feem ntau xav tau Charpy V-Kev ntsuas qhov cuam tshuam ntawm -50℃F (-46 degree) nrog qhov nruab nrab qhov nruab nrab lub zog nqus ntawm 25 ft-lbs (34 J) rau cov phaj siab tshaj 0.75 ntiv tes tuab.
7.Qhov twg yog SA537 Chav Kawm 1 nquag siv?
Nws yog dav siv rau cov hlab ntsha siab, lub tso tsheb hlau luam, thiab cov ntaub ntawv siv hauv kev lag luam xws li roj thiab roj, kev tsim kho, thiab kev tsuas, tshwj xeeb tshaj yog qhov uas tsis zoo - qhov kub thiab txias yog xav tau.
8.Yuav SA537 Chav Kawm 1 puas tau welded yooj yim?
Yog, nws muaj zoo weldability. Txawm li cas los xij, yuav tsum tau ua raws li cov txheej txheem tsim nyog, suav nrog kev ua kom muaj peev xwm ua ntej rau cov ntu tuab, thiab siv cov khoom siv qis tshaj -hydrogen electrodes kom tsis txhob tawg.
9.Dab tsi yog kev kho cua sov rau SA537 Class 1 daim hlau?
SA537 Chav Kawm 1 daim hlau yog muab rau hauv qhov zoo li qub lossis kev ntxhov siab-txo qis, raws li tus neeg yuav khoom tau teev tseg, kom ua tiav cov khoom siv kho tshuab.
10. Puas yog SA537 Chav Kawm 1 haum rau qis-kev pabcuam kub?
Yog lawm, vim nws txoj kev kho cua sov thiab muaj pes tsawg leeg, SA537 Chav Kawm 1 muaj qhov zoo ntawm qhov tsis zoo thiab feem ntau yog siv rau cov ntawv thov mus rau -50℃F (-46 degree) thiab qis dua, nyob ntawm qhov tuab thiab cov txiaj ntsig kev xeem.
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 cov qauv tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
