Nkag siab cov xaim lub sijhawm hauv ntiaj teb cov qauv
Cov khoom siv yeeb nkab ntim yog qhov tseem ceeb hauv kev txhais cov phab ntsa tuab thiab tag nrho cov kav hlau. Lub sijhawm teem caij nyoog tau qhia los coj kev ua kom haum rau kev ua kom qhov sib txawv ntawm cov cheeb tsam sib txawv thiab kev lag luam. Ob ntawm cov qauv siv dav tshaj plaws hauv kev lag luam yogASME B36.10M, uas feem ntau yog siv rau cov pa roj carbon steel, thiabASME B36.19M, uas yog tshwj xeeb rau cov kav dej stainless hlau. Sch 40 poob hauv ASME B36.10M, thaum sch 40s poob hauv asme b36.19m. Txawm hais tias ob qho tib si sib qhia tib qho kev cai nominal, lawv tau tsim nrog phab ntsa me ntsis rau account rau cov khoom siv ntawm cov hlau roj carbon thiab stainless hlau. Nkag siab cov qauv tseem ceeb heev rau kom ntseeg tau cov yeeb nkab raug yog siv hauv txhua qhov haujlwm.
Kev sib piv sab ntawm Sch 40 thiab Sch 40s
Thaum piv tus sch 40 thiab sch 40s, ib qho ntawm cov feem ntau pom yog phab ntsa tuab. Carbon Steel nyob rau hauv sch 40 nyhav ua raws qhov ntev tshaj plaws rau cov hlau thicker, thaum stick tau me ntsis txo phab ntsa tuab rau tib lub npe loj. Qhov kev sib txawv no yog hloov maj mam tab sis muaj kev cuam tshuam rau ob qho kev muaj peev xwm ntws sab hauv cov yeeb nkab thiab qhov hnyav tag nrho ntawm cov kab ke.
| Nominal yeeb nkab loj (nps) | Sch 40 Phab Ntsa Thickness (Carbon Hlau, B36.10M) | SCH 40s Phab Ntsa Thickness (Stainless Hlau, B36.19m) |
|---|---|---|
| 2" | 0.154 hauv (3.91 hli) | 0.154 hauv (3.91 hli) |
| 6" | 0.280 nyob rau hauv (7.11 mm) | 0.280 nyob rau hauv (7.11 mm) |
| 10" | 0.365 hauv (9.27 hli) | 0.307 hauv (7.80 hli) |
| 12" | 0.375 hauv (9.53 hli) | 0.330 hauv (8.38 hli) |
Cov lus hais no tseem ceeb uas, nyob rau hauv lub taub loj, sch 40 carbon carbon pipes zoo li muaj cov phab ntsa thicker piv rau sch 40s cov kav hlau stainless. Qhov laj thawj yog tias stainless hlau tau txais txiaj ntsig zoo corrosion tsis kam, yog li nws tus qauv tso cai rau kev txo me ntsis tuab thaum tswj kev ua tau zoo.
Kev lag luam Kev Siv thiab Siv Cov Ntaub Ntawv
SCH 40 carbon steel kav yog dav hauv dej faib, ntuj muab roj av, roj pipelines, thiab kev tsim cov laj thawj. Lawv raug nqi -} ua tau zoo thiab muaj zog txaus kom tiv thaiv lub siab sab hauv. Piv txwv li, hauv cov dej num hauv nroog, SCH 40 carbon hlau muab cov kev ntseeg siab ntawm kev ua tau zoo thiab pheej yig.
Ntawm qhov tod tes, sch 40s stainless hlau kav yog feem ntau pom nyob rau hauv kev nyiam ua zaub mov, xws li cov khoom noj khoom haus, thiab chaw siv tshuaj. Piv txwv li, hauv marine engineering, sch 40s stainless hlau kav yog qhov ua rau lawv lub siab tsis txaus ntseeg, ua kom muaj kev ua haujlwm ntev dua.
Yuav ua li cas xaiv ntawm Sch 40 thiab SCH 40s
Xaiv ntawm SCH 40 thiab sch 40s nyob ntawm ntau ntawm cov ntawv thov. Rau cov phiaj xwm yuav tsum tau siv tus nqi efficiency thiab tshuab zog hauv tsis {Corrosive ib puag ncig, Selbon Page roj carbon hlau yog feem ntau haum. Txawm li cas los xij, rau cov phiaj xwm qhov twg corrosion, tshuaj lom neeg raug mob, lossis nruj me ntsis qhov xwm txheej yog qhov kev xaiv zoo dua. Tus nqi saib xyuas, kev saib xyuas yuav tsum tau ua, ib puag ncig kev pabcuam txhua tus yuav tsum tau coj los txiav txim siab.
