Nkag Siab Ob Chav Welded Yeeb Nkab Thiab Cov Kauv Welded Steel Yeeb Nkab Astm A252
Taw qhia:
Hauv lub zej zog niaj hnub, kev thauj khoom tau zoo ntawm cov kua thiab roj av yog qhov tseem ceeb rau ntau kev lag luam. Ib qho ntawm cov ntsiab lus tseem ceeb hauv kev ua haujlwm kom du ntawm kojYeeb Nkab Kabtab tom xaiv cov kav dej txoj cai. Ntawm cov kev xaiv ntau yam muaj, s235 JR kauv steel yeeb nkab yog qhov kev xaiv txhim khu kev qha vim nws zoo tshaj plaws. Qhov blog no lub hom phiaj los tshawb txog qhov zoo ntawm kev siv S235 JR kauv steel yeeb nkab hauv cov ntawv piping, tsom mus rau nws cov qauv welded.
Cov Cuab Yeej Cuab Yeej Cuab Yeej
| qib hlau | Yam tsawg kawg nkaus xwb Zog | Lub zog tensile | Yam tsawg kawg nkaus elongation | Yam tsawg kawg nkaus cuam tshuam lub zog | ||||
| Teev cov tuab | Teev cov tuab | Teev cov tuab | Ntawm sim ntsuas qhov kub ntawm | |||||
| <16 | > 1605 | <3 | ≥40 | I≤40 | -20 ℃ | 0 ℃ | 20 ℃ | |
| S235jrh | 235 | 22 | 360-510 | 360-510 | 24 | - | - | 27 |
| S275j0h | 275 | 26 | 430-580 | 410-560 | 20 | - | 27 | - |
| S275j2h | 27 | - | - | |||||
| S355j0h | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
| S355j2h | 27 | - | - | |||||
| S355k2h | 40 | - | - | |||||
Tshuaj Muaj Tshuaj
| Qib hlau | Hom de-oxidation a | % los ntawm huab hwm coj, siab tshaj plaws | ||||||
| Hlau Npe Hlau | Hlau tooj | C | C | Si | Mn | P | S | Nb |
| S235jrh | 1.0039 | FF | 0,17 | - | 1,40 | 0,040 | 0,040 | 0.009 |
| S275j0h | 1.0149 | FF | 0,20 | - | 1,50 | 0,035 | 0,035 | 0,009 |
| S275j2h | 1.0138 | FF | 0,20 | - | 1,50 | 0,030 | 0,030 | - |
| S355j0h | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
| S355j2h | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
| S355k2h | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
| a. Cov txheej txheem Deagidation yog tsim raws li hauv qab no: FF: Nkaus tua cov hlau uas muaj cov khoom siv nitrogen khi rau hauv cov nyiaj muaj peev xwm khi muaj nitrogen (piv txwv li min lossis 0,015% soluble al). b. Tus nqi siab tshaj plaws rau Nitrogen tsis siv yog tias cov tshuaj lom neeg muaj pes tsawg leeg ntawm 0,020% nrog tsawg kawg AL / N piv txog 2: 1, lossis yog tias muaj lwm cov n-khi cov khoom n-khi tam sim no. Cov n-khi cov ntsiab yuav tsum tau sau cia hauv daim ntawv tshuaj xyuas. | ||||||||
Hydrostatic Kev Ntsuam Xyuas
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum raug sim los ntawm cov khw mus rau lub tshuab cua hydostatic Lub siab yuav tsum txiav txim siab los ntawm kab sib luag hauv qab no:
P = 2st / d
Kev tso cai sib txawv hauv qhov hnyav thiab qhov ntev
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ua kom muaj nyias thiab nws qhov hnyav yuav tsis sib txawv ntau dua 10% dhau los yog 5.5% raws li nws qhov ntev thiab siv qhov hnyav thiab nws qhov hnyav rau ib ntu ntev
Sab nraud ntawm lub cheeb tsam yuav tsis sib txawv ntau dua ± 1% los ntawm cov kev cai tshwj xeeb sab nraud ntawm lub taub
Phab Ntsa Thickness ntawm txhua qhov taw tes yuav tsum tsis ntau tshaj 12.5% nyob rau hauv lub phab ntsa teev
1. Nkag Siab S235 JR Muab Kauv Hlau Yeeb:
S235 JR KAUV STEEL YEEByog ib tug kauv welded yeeb nkab dav siv nyob rau hauv cov kab hluav taws xob. Lawv tau ua los ntawm cov hlau zoo hauv kev ua raws li cov qauv thoob ntiaj teb, kom ntseeg tau cov haujlwm zoo dua thiab muaj zog. Cov txheej txheem tsim khoom lag luam cuam tshuam nrog cov kauv tsim cov txheej txheem sib txuas hlau txuas ntxiv, uas yog tom qab ntawd welded mus rau qhov ntev xav tau. Qhov txheej txheem kev tsim kho no tau muab cov kav dej uas muaj cov kav dej tseem ceeb tshaj cov khoom sib npaug.
2. Qhov Zoo ntawm Muab Kauv Welded Yeeb Nkab Siv:
Tus muab kauv welded siv ntawm S235 JR kauv steel yeeb nkab muab ntau cov txiaj ntsig rau cov tshuab raj piping. Ua ntej, cov cuab yeej txuas ntxiv weld cuam tshuam rau cov qauv kev ncaj ncees ntawm cov yeeb nkab, ua rau nws tiv taus sab hauv thiab sab nraud. Cov qauv no kuj ua kom muaj txiaj ntsig txawm tias load faib, txo qis kev pheej hmoo ntawm cov yeeb nkab tsis ua haujlwm. Ib qho ntxiv, cov kauv cov yeeb nkab ntawm cov yeeb nkab tshem tawm qhov xav tau ntawm kev txhawb nqa sab hauv, yog li ua kom muaj peev xwm ntws tawm thaum lub sijhawm ua kua. Qhov chaw sib nraus sib txuas ntxiv ntawm cov kauv yeeb nkab cov yeeb nkab txo qis kev pheej hmoo ntawm cov dej xau thiab txhim kho kev nyab xeeb thiab ua haujlwm ntawm cov raj txheej txheem.
3. Txhim Kho Durability thiab Versatility:
S235 JR kauv steel yeeb nkab muaj cov txiaj ntsig zoo dua vim nws cov khoom tsim kho zoo. Lawv tiv taus corrosion, puas thiab huab cua huab cua, ua rau lawv zoo tshaj rau ntau yam kev siv nrog cov roj av thiab roj tshuab thiab cov phiaj xwm dej. Cov versatility ntawm cov kav dej pub rau lawv kom lawv yooj yim conternet kom tau raws li kev xav tau tshwj xeeb. Ib qho ntxiv, lawv yooj yim rau nruab thiab tswj hwm, ntxiv rau lawv qhov kev thov rov hais dua thiab pab kom ua tau zoo dua thiab lub sijhawm ua haujlwm.
4. Ib puag ncig cov txiaj ntsig thiab kev ua neeg muaj kev ruaj khov:
Hloov mus rau S235 JR kauv steel yeeb nkab hauv cov ntawv piping tseem tuaj yeem nqa cov txiaj ntsig ib puag ncig. Lawv lub neej ntev thiab kev tawm tsam rau kev cuam tshuam txo qis kev xav tau hloov ntau zaus, ua rau muaj kev khib nyiab qis dua thiab tsis nkim ntau lawm. Tsis tas li ntawd, cov recyclability ntawm cov hlau ua rau cov kav dej ib txoj kev xaiv ruaj khov hauv kab nrog kev lag luam kev lag luam ncig. Los ntawm kev siv S235 JR Maper Steel kav, muaj peev xwm ua kom muaj kev lag luam ib puag ncig thiab lub luag haujlwm thauj mus los thauj cov kua dej, yog li txhawb nqa dej ntsuab.
Xaus:
Kev siv S235 JR kauv steel yeeb nkab hauv cov thawv roj muaj ntau yam ntawm qhov zoo, suav nrog txhim kho kev nyab xeeb, kev nyab xeeb thiab ua haujlwm. Tus qauv welded welded ua kom nws cov qauv kev ncaj ncees thiab muab cov roj uas ntseeg tau zoo rau ntau yam kev lag luam. Los ntawm kev sib txuam nrog kev tshaj lij thev naus laus zis zoo li no, peb tab tom ua txoj hauv kev rau cov kav raj xa khoom kom ruaj khov thiab txhim khu kev qha
