SA691 Qib 1CR Carbon Steel Boiler & Heat Exchanger Pipe
Txheej txheem cej luam
SA691 yog tus qauv specification rauCarbon thiab Alloy Steel Pipe rau High -Kev Pabcuam Siab ntawm Kub Kub, tshwj xeeb tsim rauboilers, superheaters, thiab tshav kub exchangers. Qhov kev xaiv "1CR" yog hais txog qib tshwj xeeb hauv qhov kev qhia tshwj xeeb no uas muaj kwv yees li 0.5% Chromium thiab 0.5% Molybdenum, txhim kho nws lub zog thiab tiv thaiv oxidation ntawm qhov kub siab.
Cov kav dej no yog tsim los siv rau hauv qhov tseem ceeb ntawm - qhov kub thiab siab - cov ntawv thov siab xws li cov chaw tsim hluav taws xob, lub tshuab ua kom sov, thiab cov chaw ua tshuaj, qhov chaw uas lawv thauj cov pa, dej pub, los yog lwm yam txheej txheem dej.
Ntsiab nta & Daim ntawv thov
Khoom siv:Chromium-Molybdenum (Cr-Mo) alloy hlau.
Cov khoom tseem ceeb:Zoo siab - kub lub zog thiab txhim kho oxidation kuj piv rau cov pa roj carbon steel.
Kev Siv Tseem Ceeb:Fabrication ntawmboiler tubes, superheater tubes, tshav kub exchanger raj, thiab siab piping systemsrau siab -kev pabcuam kub.
Kev tsim khoom:Feem ntau ua los ntawm hluav taws xob - fusion vuam (xws li, SA691 feem ntau yog Electric Fusion Welded - EFW yeeb nkab).
SA691 1CR Chemical Composition & Mechanical Properties Table
| Khoom | Standard / Qib | Tus nqi / Kev xav tau |
|---|---|---|
| Standard Designation | ASTM / ASME SA691 | - |
| Qib | 1CR (Sib npaug rau ASTM A335 P1) | - |
| Tshuaj muaj pes tsawg leeg | Cov pa roj carbon (C) | 0.10 - 0.20 % |
| Manganese (Mn) | 0.30 - 0.80 % | |
| Phosphorus (P) max | 0.025 % | |
| Sulfur (S) max | 0.025 % | |
| Silicon (Si) | 0.10 - 0.50 % | |
| Chromium (Cr) | 0.50 - 0.80 % | |
| Molybdenum (hli) | 0.44 - 0.65 % | |
| Mechanical Properties | Tensile zog min | 380 MPa (55,000 psi) |
| Yield zog min | 205 MPa (30,000 psi) | |
| Elongation min | Nws txawv ntawm phab ntsa thickness | |
| Kev kho cua sov | - | Tag Nrho Annealing, Normalizing & Tempering, lossis Stress Relieving (raws li xav tau los ntawm spec) |
Common Specifications & Dimensions
Qhov Loj Loj:Sab nraud Diameter (OD) thiab phab ntsa tuab yog tsim raws li kev yuav khoom yuav tsum tau, feem ntau ua raws li cov qauv zoo li ASME B36.10M.
Ntev:Random lossis txiav ntev, feem ntau yog ob npaug (~ 40 ft / 12m) lossis ib qho random (~ 20 ft / 6m).
Xaus:Plain xaus (PE) lossis beveled xaus rau vuam (BE).
Kev txiav txim siab tseem ceeb
Kev Ua Raws Cai:SA691 yeeb nkab yog tsim los ua raws li ASME Boiler thiab Pressure Vessel Code (BPVC) Tshooj I thiab Tshooj VIII rau cov khoom siv siab.
Kev kuaj:Nws yuav raug kuaj nruj nrog rau hydrostatic lossis tsis yog -kev kuaj hluav taws xob puas tsuaj, tshuaj ntsuam xyuas, thiab kev ntsuas nruj.
Ntawv pov thawj:Cov Ntawv Qhia Txog Cov Khoom Siv (MTRs) lossis Cov Ntawv Pov Thawj Xeem (CTRs) yog muab los ua kom tau raws li qhov tshwj xeeb.
Alternative Qib:Rau qhov kev xav tau ntawm qhov kub thiab qhov muaj zog sib txawv, lwm qib SA691 muaj nyob (piv txwv li, 2CR, 12CR, thiab lwm yam), thiab SA691 1CR feem ntau suav tias hloov tau nrogASTM A335 P1seamless yeeb nkab nyob rau hauv ntau designs.
Tsis lees paub:Cov ntaub ntawv muab ntawm no yog rau kev siv dav dav nkaus xwb. Rau kev tsim qauv, kev yuav khoom, lossis kev tsim khoom, nco ntsoov sab laj cov lus tseeb ASTM / ASME SA691 cov lus qhia tshwj xeeb thiab cov lej cuam tshuam.
