Txheej txheem cej luam
SA-210A1yog tus qauv specification rauseamless nruab nrab- carbon steel boiler thiab superheater raj. Nws yog ib qho tseem ceeb tshaj plaws thiab cov ntaub ntawv tseem ceeb siv hauv kev tsim kho lub hwj chim boilers, industrial boilers, thiab tshav kub exchangers. Qhov kev xaiv "A1" qhia txog qib tshwj xeeb hauv SA-210 tus qauv dav dua.
Cov khoom no yog tswj hwm los ntawm covASTM A210/A210Mtus qauv (tus "M" qhia txog metric units), uas tau txais los ntawm ASME (American Society of Mechanical Engineers) Boiler thiab Pressure Vessel Code raws liSIB-210.
Cov yam ntxwv tseem ceeb
Khoom siv:Nruab nrab-Carbon Steel
Kev tsim khoom:Seamless (Mandrel dov los yog pierced thiab kos). Qhov no tsim ib lub raj homogeneous yam tsis muaj welded seam, uas yog ib qho tseem ceeb rau kev siv siab - siab.
Daim Ntawv Thov Tseem Ceeb:Boiler tubes, superheater tubes, thiab tshav kub exchanger raj.
Chemical Composition (%)
Cov muaj pes tsawg leeg yog ua tib zoo tswj kom ntseeg tau tias weldability, lub zog, thiab cov qauv kev ruaj ntseg.
| Lub ntsiab | Kev sib xyaw (%) |
|---|---|
| Cov pa roj carbon (C) | 0.13 - 0.19 |
| Manganese (Mn) | 0.45 - 0.65 |
| Phosphorus (P), max | 0.025 |
| Sulfur (S), max | 0.025 |
| Silicon (Si) | Ntau dua lossis sib npaug li 0.10 |
Lus Cim: Cov ntsiab lus silicon ntau dua tuaj yeem txhim kho oxidation (scaling) thiab txhim kho lub zog ntawm qhov kub siab.
Mechanical Properties
Cov khoom no yog qhov tseem ceeb rau nws txoj kev ua haujlwm nyob rau hauv siab thiab kub.
| Khoom | Tus nqi |
|---|---|
| Tensile zog, min | 415 MPa (60,000 psi) |
| Yield zog, min | 255 MPa (37,000 psi) |
| Elongation, min | - 30% (ntawm 2-nti. gauge length) - 16% (ntawm 8-hauv. gauge length) |
Qhov Zoo Tshaj Plaws & Vim Li Cas Nws Siv
Lub zog zoo ntawm qhov kub siab:SA-210A1 tuav nws lub zog txhua yam ntawm qhov kev ua haujlwm kub feem ntau pom nyob rau hauv boiler thiab superheater seem (feem ntau txog ~ 450℃/ 850℃F). Rau qhov kub siab dua, alloy steels zoo li SA-213 T11 / T22 yog siv.
Zoo heev thermal conductivity:Raws li cov pa roj carbon steel, nws muaj txiaj ntsig hloov cov cua sov los ntawm cov roj hluav taws xob mus rau cov dej hauv lub raj, uas yog lub luag haujlwm tseem ceeb ntawm lub boiler.
Tus nqi -zoo:Nws yog qhov tsis tshua kim tshaj li cov hlau alloy, ua rau nws yog qhov kev xaiv pheej yig rau cov seem ntawm lub boiler qhov twg qhov kub tsis txias heev.
Zoo Weldability thiab Formability:Nws cov ntsiab lus carbon nruab nrab ua rau nws yooj yim rau vuam thiab khoov rau hauv cov duab uas xav tau rau kev siv boiler, piv rau cov pa roj carbon ntau dua.
Siab Tightness:Cov txheej txheem tsim seamless ua kom lub raj tuaj yeem tiv taus siab sab hauv yam tsis muaj dej.
Cov ntawv thov siv
SA-210A1 raj yog siv nyob rau hauv cov cheeb tsam ntawm lub boiler system uas raug rau nruab nrab kub:
Dej-Cov phab ntsa:Cov phab ntsa ntawm lub cub tawg qhov twg dej yog cua sov.
Economizer Tubes:Ua ntej- heats cov feedwater siv cov roj flue tawm ntawm lub boiler.
Generating Bank Tubes:Lub ntsiab seem uas saturated steam yog tsim.
Tsawg-Tsuas Kub Superheater Sections:(Cov theem pib).
Thaum tshav kub kub Exchangersnyob rau hauv ntau yam kev lag luam.
Sib piv nrog lwm cov Boiler Tube Qib Qib
Nws pab tau kom pom tias SA-210A1 piv rau nws cov txheeb ze li cas.
| Qib | Hom | Qhov txawv tseem ceeb | Hom Siv Case |
|---|---|---|---|
| SA-210 A1 | Nruab nrab-Carbon Steel | Cov kab hauv qab, qhov dav dav - qib hom phiaj. | Feem ntau ntawm cov boiler nrog nruab nrab kub. |
| SA-210 C | Nruab nrab-Carbon Steel | Siab Manganese (0.93-1.35%). Qhov no muab nws lub zog siab dua A1. | Siv qhov twg xav tau lub zog siab dua yam tsis tau txav mus rau cov hlau alloy. |
| SA-178 C | Hluav taws xob Resistance Welded (ERW) | Zoo sib xws chemistry rau A1, tab siswelded, tsis seamless. pheej yig dua tab sis rau qis dua / kub. | Tsawg-siab boilers, tsis yog{1}}tseem ceeb kub exchangers. |
| SA-213 T11/T22 | Chromium{0}}Molybdenum Alloy Steel | MuajCr (1.25%) thiab Mo (0.5%). Zoo dua siab - kub lub zog thiab nkag siab tsis kam. | High -kub superheaters thiab reheaters. |
Kev txiav txim siab tseem ceeb
Kub txwv:Thaum nws ua tau zoo ntawm qhov kub nruab nrab, SA-210A1 yuav tsum tsis txhob siv nyob rau hauv high-temperature superheater seem uas hlau kub tshaj ~ 455℃(850℃F). Ntawm cov kub no, nws lub zog poob qis, thiab oxidation ua rau muaj kev txhawj xeeb.
Corrosion:Nws tsis yog corrosion-resistant. Sab hauv dej chemistry yuav tsum tau kho kom zoo kom tsis txhob scaling thiab corrosion. Sab nrauv corrosion los ntawm flue gases kuj yog ib qho teeb meem yog tias tsis tswj.
Standards Ua raws li:Thaum siv cov cuab yeej siv siab, nws yog ib qho tseem ceeb uas cov khoom yuav tsum tau muab nrog cov ntawv pov thawj tsim nyog (xws li Mill Test Certificate) kom paub tseeb tias nws ua tau raws li qhov yuav tsum tau ua ntawm ASME code.
Hauv cov ntsiab lus,SA-210A1 yog cov khoom siv ua haujlwm rau lub zog thiab cov txheej txheem kev lag luam, muab qhov zoo sib npaug ntawm lub zog, thermal conductivity, manufacturability, thiab nqi rau ntau yam boiler thiab siab raj siv.
