Piping System Efficiency Thiab Kev Nyab Xeeb Nrog S235 JR Kauv Steel Pipes
Taw qhia:
Nyob rau hauv lub neej niaj hnub no, kev thauj mus los ntawm cov kua thiab cov pa roj tau zoo yog qhov tseem ceeb rau ntau yam kev lag luam.Ib qho ntawm cov tseem ceeb hauv kev ua kom muaj kev ua haujlwm zoo ntawm kojyeeb nkab kab systemyog xaiv txoj cai kav.Ntawm ntau yam kev xaiv muaj,S235 JR kauv hlau yeeb nkabyog ib qho kev xaiv txhim khu kev qha vim nws superior zoo.Qhov blog no tsom mus tshawb txog qhov zoo ntawm kev siv S235 JR kauv steel yeeb nkab hauv cov kav dej, tsom rau nws cov qauv welded kauv.
Mechanical Property
| qib steel | yam tsawg kawg nkaus yield zog | Tensile zog | Tsawg kawg elongation | Yam tsawg kawg nkaus lub zog | ||||
| Specified thickness | Specified thickness | Specified thickness | ntawm qhov ntsuas kub ntawm | |||||
| 16 | ＞ 16 ≤ 40 | ＜3 | ≥3≤40 | ≤ 40 | -20 ℃ | 0 ℃ | 20 ℃ | |
| S235 JRH | 235 | 225 | 360-510 : kuv | 360-510 : kuv | 24 | - | - | 27 |
| S275J0H | 275 | 265 | 430-580 : kuv | 410-560 : kuv | 20 | - | 27 | - |
| S275J2H | 27 | - | - | |||||
| S355J0H | 365 | 345 | 510-680 : kuv | 470-630 : kuv | 20 | - | 27 | - |
| S355J2H | 27 | - | - | |||||
| S355K2H | 40 | - | - | |||||
Tshuaj muaj pes tsawg leeg
| Qib hlau | Hom de-oxidation a | % los ntawm huab hwm coj, siab kawg | ||||||
| Steel npe | Hlau tooj | C | C | Si | Mn | P | S | Nb |
| S235 JRH | 1, 0039 | FF | 0,17 ib | — | 1,40 ib | 0,040 ua | 0,040 ua | 0.009 ib |
| S275J0H | 1.0149 ib | FF | 0,20 ib | — | 1,50 ib | 0,035 ib | 0,035 ib | 0,009 ib |
| S275J2H | 1, 0138 | FF | 0,20 ib | — | 1,50 ib | 0,030 ua | 0,030 ua | — |
| S355J0H | 1.0547 ib | FF | 0,22 ib | 0,55 ib | 1,60 ib | 0,035 ib | 0,035 ib | 0,009 ib |
| S355J2H | 1.0576 ib | FF | 0,22 ib | 0,55 ib | 1,60 ib | 0,030 ua | 0,030 ua | — |
| S355K2H | 1, 0512 | FF | 0,22 ib | 0,55 ib | 1,60 ib | 0,030 ua | 0,030 ua | — |
| ib.Txoj kev deoxidation yog tsim raws li hauv qab no: FF: Ua tiav cov hlau uas muaj nitrogen khi cov ntsiab lus kom txaus los khi muaj nitrogen (xws li min. 0,020% tag nrho Al lossis 0,015% soluble Al). b.Tus nqi siab tshaj plaws rau nitrogen tsis siv yog tias cov tshuaj muaj pes tsawg leeg pom qhov tsawg kawg nkaus Al ntsiab lus ntawm 0,020% nrog qhov tsawg kawg nkaus Al / N piv ntawm 2: 1, lossis yog tias muaj lwm yam N-binding ntsiab.Cov ntsiab lus N-binding yuav tsum tau sau rau hauv Cov Ntaub Ntawv Tshawb Fawb. | ||||||||
Hydrostatic Test
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum raug kuaj los ntawm cov chaw tsim khoom mus rau lub siab hydrostatic uas yuav tsim nyob rau hauv cov yeeb nkab phab ntsa ib qho kev ntxhov siab tsis pub tsawg tshaj 60% ntawm qhov tsawg kawg nkaus yield zog ntawm chav tsev kub.Lub siab yuav tsum tau txiav txim los ntawm qhov sib npaug hauv qab no:
P = 2st/D
Permissible variations In Weights and Dimensions
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ntsuas nyias thiab nws qhov hnyav yuav tsum tsis txhob sib txawv ntau dua 10% tshaj lossis 5.5% raws li nws qhov hnyav, suav nrog nws qhov ntev thiab nws qhov hnyav ntawm ib chav tsev ntev.
Sab nraud txoj kab uas hla yuav tsum tsis txhob sib txawv ntau tshaj ± 1% ntawm lub npe nominal sab nraud txoj kab uas hla
Phab ntsa thickness ntawm txhua qhov chaw yuav tsum tsis pub ntau tshaj 12.5% raws li cov phab ntsa thickness
1. Nkag siab S235 JR kauv steel yeeb nkab:
S235 JR kauv steel yeeb nkabyog ib tug kauv welded yeeb nkab dav siv nyob rau hauv pipeline systems.Lawv tau ua los ntawm cov hlau zoo hauv kev ua raws li cov qauv thoob ntiaj teb, kom ntseeg tau tias muaj zog thiab ruaj khov.Cov txheej txheem tsim khoom yuav tsum tau muab kauv tsim ntawm nruam steel strips, uas yog ces welded mus rau qhov xav tau ntev.Cov txheej txheem kev tsim kho no muab cov kav dej uas muaj txiaj ntsig zoo tshaj cov kav dej ncaj nraim.
2. Qhov zoo ntawm kauv welded yeeb nkab siv:
Cov kauv welded kev tsim kho ntawm S235 JR Spiral Steel Pipe muab ntau yam txiaj ntsig rau cov kav dej.Ua ntej, qhov txuas txuas txuas txuas txuas txuas txuas ntxiv txhim kho cov txheej txheem kev ncaj ncees ntawm cov yeeb nkab, ua rau nws tiv taus siab rau sab hauv thiab sab nraud.Cov qauv no tseem ua kom ntseeg tau tias txawm tias thauj khoom xa tawm, txo qhov kev pheej hmoo ntawm cov yeeb nkab tsis ua haujlwm.Tsis tas li ntawd, lub kauv zoo ntawm cov yeeb nkab tshem tawm qhov xav tau rau kev txhawb nqa sab hauv, yog li ua kom muaj peev xwm txaus txaus thiab txo qis kev poob siab thaum hloov dej.Seamless nruam nto ntawm cov kauv yeeb nkab txo qhov kev pheej hmoo ntawm kev xau thiab txhim kho kev nyab xeeb thiab kev ua haujlwm ntawm cov kav dej.
3. Txhim khu durability thiab versatility:
S235 JR Spiral Steel Pipe muaj kev ua haujlwm zoo dua vim nws cov khoom siv zoo.Lawv tiv taus corrosion, abrasion thiab huab cua huab cua, ua rau lawv zoo tagnrho rau ntau yam kev siv xws li roj thiab roj tsheb thauj mus los, dej systems thiab infrastructure tej yaam num.Lub versatility ntawm cov kav dej no tso cai rau lawv ua tau yooj yim kho kom tau raws li qhov project tshwj xeeb.Tsis tas li ntawd, lawv yooj yim rau nruab thiab tswj xyuas, ntxiv rau lawv qhov kev thov rov hais dua thiab pab ua kom muaj txiaj ntsig zoo thiab siv sij hawm ua haujlwm ductwork system.
4. Cov txiaj ntsig ib puag ncig thiab kev ruaj ntseg:
Hloov mus rau S235 JR kauv steel yeeb nkab hauv cov kav dej kuj tuaj yeem nqa cov txiaj ntsig zoo ib puag ncig.Lawv lub neej ntev thiab kev tiv thaiv rau degradation txo qhov xav tau kev hloov pauv ntau zaus, ua rau qis carbon emissions thiab tsawg tsim cov khoom pov tseg.Tsis tas li ntawd, kev rov ua dua tshiab ntawm cov hlau ua rau cov kav dej no muaj kev xaiv ruaj khov raws li cov qauv kev lag luam ncig.Los ntawm kev siv S235 JR kauv steel kav, kev lag luam tuaj yeem ua kom muaj kev nyab xeeb ntau dua thiab muaj lub luag haujlwm los thauj cov kua dej, yog li txhawb lub neej yav tom ntej.
Xaus:
Kev siv S235 JR kauv steel yeeb nkab hauv cov kav dej muaj ntau yam zoo, nrog rau kev txhim kho kom ruaj khov, kev nyab xeeb thiab kev ua haujlwm zoo.Lub kauv welded qauv ua kom nws cov qauv kev ncaj ncees thiab muab cov kua dej txhim khu kev qha rau ntau yam kev lag luam.Los ntawm kev koom nrog cov thev naus laus zis zoo li no, peb tab tom ua txoj hauv kev kom muaj kev ruaj khov thiab txhim khu kev qha cov kav dej.
