Cov no yog ob feem ntau cov tooj liab nickel alloys ntawm lub khw. Ob leeg tuav dej hiav txwv zoo. Tab sis ib qho nqi tsawg dua. Lwm tus kav ntev dua hauv dej txhoj puab heev. Xaiv qhov tsis ncaj ncees lawm txhais tau tias them nyiaj ntau dhau los lossis rov pib ntxov dhau.
Qhov kev sib piv no pab koj txiav txim siab raws li koj qhov dej chemistry, pob nyiaj siv, thiab lub neej kev pab cuam.
Dab tsi yog qhov txawv ntawm C70600 thiab C71500?
| Khoom | C70600 (90/10) | C71500 (70/30) |
|---|---|---|
| tooj liab% | 88.0 – 90.0 | 69.0 – 71.0 |
| Nickel% | 9.0 – 11.0 | 29.0 – 33.0 |
| Hlau% | 1.0 – 1.8 | 0.4 – 1.0 |
| Manganese% | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 1.0 |
| Seawater corrosion kuj | Zoo heev | Superior |
| Ammonia kev nyuaj siab corrosion cracking | Nruab nrab kuj | Kev tiv thaiv zoo heev |
| Kev nrawm nrawm (ntau tshaj 3.5 m / s) | pluag | Txais tau |
| Crevice corrosion kuj | Zoo | Zoo dua |
| Biofouling kuj | Zoo heev | Zoo heev |
| Thermal conductivity (W / m · K) | 45 | 29 |
| Tensile zog (MPa) | 310 min | 380 min |
| Yield zog (MPa) | 105 feeb | 150 feeb |
| Elongation (%) | 30 feeb | 30 feeb |
| Hardness (HRB) | 40 – 65 | 60 – 85 |
| Tus nqi txheeb ze ib 'meter' | 1.0x | 1.5 – 1.6x |
| Cov kev pab cuam lub neej nyob rau hauv huv seawater | 20-30 xyoo | 30-40 xyoo |
| Hom kev pab cuam lub neej nyob rau hauv cov dej qias neeg seawater | 10-15 xyoo | 20-25 xyoo |
Cov alloy twg zoo dua seawater corrosion kuj - C70600 lossis C71500?
C71500 muaj cov dej hiav txwv zoo dua corrosion, tshwj xeeb tshaj yog nyob rau hauv cov xwm txheej hnyav. Tab sis rau cov dej hiav txwv huv, ob qho tib si ua tau zoo.
| Seawater mob | C70600 | C71500 |
|---|---|---|
| Huv, 2.0 m / s, 25 degree | 20-30 xyoo | 30-40 xyoo |
| Huv, 3.0 m / s, 25 degree | 15-25 xyoo | 25-35 xyoo |
| Polluted (tsawg sulfides) | 10-15 xyoo | 20-25 xyoo |
| Polluted (siab sulfides) | 5-10 xyoo | 15-20 xyoo |
| With ammonia >2ppm ua | Kev nyuaj siab corrosion cracking txaus ntshai | Tsis tawg |
| Dej hiav txwv | Pitting txaus ntshai | Tsawg pitting kev pheej hmoo |
| Kub kub (siab tshaj 200 degree) | Zoo | Zoo dua |
Cov piv txwv ntawm lub ntiaj teb tiag:
Lub tshuab fais fab nrog dej hiav txwv huv siv C70600 rau 28 xyoo ua ntej thawj retube.
Ib tsob nroj tshuaj uas muaj kuab paug seawater hloov los ntawm C70600 (ua tsis tiav ntawm 7 xyoo) mus rau C71500 (tseem khiav ntawm 15 xyoo).
Xaus: Rau cov dej hiav txwv huv, C70600 zoo txaus. Rau cov dej hiav txwv muaj kuab paug los yog txhoj puab heev, them nyiaj ntxiv rau C71500.
Cov hlau twg ua haujlwm ammonia zoo dua - C70600 lossis C71500?
C71500 yog qhov zoo dua. Qhov no yog ib qho ntawm cov laj thawj tseem ceeb rau kev txhim kho.
| Ammonia qib | C70600 | C71500 |
|---|---|---|
| Hauv qab no 1 ppm | Muaj kev nyab xeeb | Muaj kev nyab xeeb |
| 1-2 ppm | Muaj kev pheej hmoo | Muaj kev nyab xeeb |
| 2-5 ppm | Kev pheej hmoo siab ntawm SCC | Muaj kev nyab xeeb |
| 5-10 ppm | Muaj kev pheej hmoo siab, tsis txhob siv | Kev pheej hmoo tsawg |
| Tshaj 10 ppm | Tsis txhob siv | Kev pheej hmoo nruab nrab - xav txog titanium |
Vim li cas C71500 yeej:
Cov ntsiab lus nickel siab dua (30% vs 10%) ua rau cov hlau tiv taus ntau dua rau ammonia-induced stress corrosion cracking. Cov npib tsib xee stabilizes cov qoob loo ciam teb tiv thaiv kev tawm tsam.
Yog tias koj cov dej txias muaj:
Ammonia los ntawm cov nroj tsuag chiv lossis cov txheej txheem tshuaj → Xaiv C71500
Ammonia los ntawm cov dej phwj tuaj → Xaiv C71500
Ammonia- tshuaj kho dej raws li → Xaiv C71500 lossis hloov kho
Cov hlau twg ua haujlwm siab tshaj tawm zoo dua - C70600 lossis C71500?
C71500 tiv taus yaig ntawm qhov nrawm dua. C70600 erodes siab tshaj 3.5 m / s.
| Dej ceev (m / s) | C70600 | C71500 |
|---|---|---|
| 1.0 – 2.0 | Zoo heev | Zoo heev |
| 2.0 – 3.0 | Zoo heev | Zoo heev |
| 3.0 – 3.5 | Txais tau, hnav me me | Zoo heev |
| 3.5 – 4.0 | Erosion pib | Txais tau, hnav me me |
| 4.0 – 4.5 | Qhov tseem ceeb erosion | Erosion pib |
| Tshaj 4.5 | Kev yaig hnyav, tsis txhob siv | Qhov tseem ceeb erosion |
Vim li cas C71500 yeej:
Lub zog siab dua (380 MPa vs 310 MPa tensile) thiab tawv tawv tiv thaiv cov khoom siv los ntawm cov dej ntws, xuab zeb, thiab cov khib nyiab.
Yog tias koj qhov system muaj:
Lub twj tso kua mis tawm nrog lub nrawm tshaj 3.5 m / s → Xaiv C71500
Xuab zeb los yog khib nyiab hauv dej → Xaiv C71500
Kev pib ua haujlwm nquag ua rau nrawm nrawm → Xaiv C71500
Cov hlau twg muaj cov thermal conductivity zoo dua - C70600 lossis C71500?
C70600 muaj thermal conductivity zoo dua. Qhov no yog C70600 qhov zoo tshaj plaws tshaj C71500.
| Alloy | Thermal conductivity (W / m · K) | Thaum tshav kub kub hloov mus rau C70600 |
|---|---|---|
| C70600 | 45 | 1.00x (lub hauv paus) |
| C71500 | 29 | 0.64x |
Qhov no txhais li cas rau kev tsim hluav taws xob hloov pauv:
Rau tib lub luag haujlwm thaum tshav kub kub, C71500 xav tau kwv yees li 55-60% thaj tsam ntau dua li C70600.
Piv txwv:
Lub condenser nrog C70600 xav tau 1,000 raj
Tib lub condenser nrog C71500 xav tau txog 1,550 raj
| Tsim cuam tshuam | C70600 | C71500 |
|---|---|---|
| Tus naj npawb ntawm cov raj | Lub hauv paus | +55% |
| Plhaub txoj kab uas hla | Lub hauv paus | +20% |
| Tag nrho cov nqi kub exchanger | Lub hauv paus | +30–40% |
| Pumping zog (siab poob) | Lub hauv paus | Siab (ntau lub raj) |
Yog koj qhov tseem ceeb:
Thaum tshav kub kub hloov efficiency thiab compact loj → Xaiv C70600
Corrosion tsis kam ntawm tus nqi → Xaiv C71500 thiab lees txais kev ua haujlwm qis dua
Tus nqi sib txawv ntawm C70600 thiab C71500 yog dab tsi?
C70600 tus nqi qis dua ua ntej. C71500 tus nqi 50-60% ntau dua ib 'meter'.
| Scenario | C70600 | C71500 |
|---|---|---|
| Upfront raj nqi rau 1,000 meters | $1,000 | $1,550 – $1,600 |
| Cia siab tias yuav muaj sia nyob hauv dej hiav txwv huv | 25 xyoo | 35 xyoo |
| Cia siab tias yuav muaj sia nyob hauv dej hiav txwv | 12 xyoo | 22 xyoo |
| 20-xyoo tus nqi hauv dej huv (khoom siv nkaus xwb) | $1,000 | $1,550 |
| 20-xyoo tus nqi hauv cov dej tsis huv (cov khoom siv nkaus xwb) | $2,000 (ib lub hlis) | $1,550 (tsis muaj retube) |
| Downtime nqi ib retube | $10,000 – $50,000 | $0 |
Nqe lus xaus:
Cov dej hiav txwv huv huv → C70600 yog pheej yig dua 20 xyoo
Polluted seawater → C71500 yog pheej yig dua 20 xyoo (tsis xav tau retube)
Zero downtime kam rau ua → C71500 txawm tias tus nqi nce siab
Thaum twg koj yuav tsum xaiv C70600 tshaj C71500?
Xaiv C70600 rau feem ntau cov ntawv thov dej hiav txwv huv. Nws raug nqi zoo thiab ua haujlwm zoo.
Cov ntawv thov zoo tshaj plaws rau C70600:
Coastal fais fab nroj tsuag condensers nrog huv seawater
Shipboard cua txias tshuab (tsis muaj ammonia paug)
Desalination cog tshav kub exchangers (tsawg kub seem)
Offshore platform firewater systems
Cov dej khib nyiab nrog kev tswj kom zoo
Txhua daim ntawv thov qhov twg pob nyiaj nruj thiab dej huv
Thaum C70600 tsis txaus:
Ammonia hauv dej txias tshaj 2 ppm
Kev nrawm nrawm nrawm dua 3.5 m / s
Polluted los yog sulfidic seawater
Kev pabcuam lub neej yuav tsum tau tshaj 25 xyoo hauv dej nruj
Zero tolerance rau raj tsis ua hauj lwm (nuclear, txheej txheem tseem ceeb)
Thaum twg koj yuav tsum xaiv C71500 tshaj C70600?
Xaiv C71500 thaum dej txhoj puab heev, ammonia tam sim no, lossis koj tsis tuaj yeem them nyiaj poob haujlwm.
Cov ntawv thov zoo tshaj plaws rau C71500:
Chemical plant coolers nrog ammonia hauv dej
Cov chaw tsim hluav taws xob siv cov dej qias neeg tsis zoo los yog chaw nres nkoj dej
Offshore platforms nrog siab ceev seawater
Nuclear fais fab nroj tsuag condensers (kev nyab xeeb tseem ceeb)
Desalination brine rhaub (siab kub, siab salinity)
Txhua daim ntawv thov uas retubing yog kim heev los yog tsis yooj yim sua
Thaum C71500 yuav overkill:
Ntxuav, qhib dej hiav txwv dej hiav txwv nrog zoo ntws
Cov dej qab zib los yog dej chloride tsawg
Lub neej luv luv (tsawg dua 10 xyoo)
Nyiaj txiag nruj heev
FAQ
Dab tsi yog qhov txawv ntawm C70600 thiab C71500?
C70600 muaj 10% npib tsib xee thiab nqi tsawg. C71500 muaj 30% npib tsib xee, tus nqi 50-60% ntxiv, thiab tiv taus ammonia thiab siab tshaj tawm zoo dua. Siv C70600 rau feem ntau cov dej hiav txwv. Hloov kho mus rau C71500 yog tias koj muaj ammonia lossis ntws siab heev.
Kuv puas tuaj yeem hloov C70600 hlab nrog C71500 hauv cov khoom siv hluav taws xob uas twb muaj lawm?
Yog, tab sis kos peb yam. Ua ntej, cov ntaub ntawv raj thiab cov txheej txheem nthuav dav - C71500 muaj zog dua. Thib ob, kev ua haujlwm thermal - C71500 xav tau ntau qhov chaw. Thib peb, galvanic compatibility - ob qho tib si nyob ze, tab sis nrog koj tus engineer.
Puas yog C71500 kav ob zaug ntev li C70600?
Tsis nyob hauv dej hiav txwv huv. Hauv dej huv, C71500 kav ntev li 30-40 xyoo vs 20-30 xyoo rau C70600 - kwv yees li 30-40% ntev dua. Hauv cov dej qias neeg nrog ammonia, C71500 tuaj yeem kav 3-4x ntev dua vim tias C70600 tsis ua haujlwm los ntawm SCC.
Cov hlau twg yooj yim dua rau khoov thiab nthuav dav - C70600 lossis C71500?
C70600 yooj yim dua. Nws muaj zog qis (310 vs 380 MPa) thiab ductility ntau dua (ob leeg 30% elongation, tab sis C70600 yog softer). C71500 xav tau ntau zog rau khoov thiab nthuav dav. Ob leeg xav tau kev ntxhov siab tom qab U- khoov.
Puas yog C71500 muaj biofouling zoo dua li C70600?
Tsis yog, lawv zoo ib yam. Ob leeg tso cov tooj liab ions uas tiv thaiv kev loj hlob hauv hiav txwv. C70600 tiag tiag muaj cov ntsiab lus tooj liab ntau dua (90% vs 70%), yog li qee qhov kev tshawb fawb pom tau tias zoo dua biofouling tsis kam. Qhov txawv me me.
Daim ntawv pov thawj zeb twg kuv yuav tsum nug kom paub tseeb C70600 vs C71500?
Nug rau EN 10204 Hom 3.1 lossis 3.2. Txheeb xyuas cov ntsiab lus nickel - 9-11% rau C70600, 29-33% rau C71500. Kuj kuaj hlau - 1.0-1.8% rau C70600, 0.4-1.0% rau C71500. Tsis yog npib tsib xee lossis hlau txhais tau tias tsis ncaj ncees lawm alloy.
Kuv puas tuaj yeem txuas C70600 thiab C71500 ua ke?
Yes, use AWS A5.7 ERCuNi filler metal. Ob lub alloys weld zoo rau ib leeg. Tib txoj kev vuam ua haujlwm rau ob leeg. Tsis muaj qhov tshwj xeeb muab tub lim xav tau rau cov vuam sib txawv.
Yuav ua li cas yog tias kuv siv C70600 hauv kev pabcuam ammonia yuam kev?
Kev ntxhov siab corrosion tawg hauv 6-24 lub hlis. Tubes tawg raws cov ciam teb yam tsis tau ceeb toom. Tsis muaj phab ntsa thinning. Tubes snap thaum khoov. Qhov kho tsuas yog ua tiav retube nrog C71500 lossis titanium.
Yuav qhia C70600 los ntawm C71500 pom li cas?
Xim tsis txhim khu kev qha. C70600 yog salmon liab. C71500 yog sib dua, yuav luag nyiaj -paj liab. Tab sis teeb pom kev zoo cuam tshuam qhov koj pom. Siv PMI (XRF phom) rau kev txheeb xyuas qhov zoo - 10 vib nas this lees paub cov ntsiab lus nickel.
Ntim
Export shipping (hiav txwv freight)
Yas kawg lub kaus mom + polybag tus neeg qhwv
Ntoo crates (ISPM15 fumigated, tsis muaj bark)
Moisture barrier ntawv hauv crate
Desiccant hnab (5-10 ib cubic meter)
Hlau spools rau coil tubing
Sau npe ua lus Askiv thiab Suav
Packing daim ntawv taped sab hauv thiab sab nraud crate
Cov kev cai tshwj xeeb muaj
Xim coding los ntawm alloy (ntsuab rau C70600, daj rau C71500)
Los tiv thaiv - xeb roj txheej (rau cov chaw muaj av noo siab)
Shrink qhwv rau me me
Kev cai ntoo crates rau qhov project xa khoom
Peb Cov Khoom Siv Tsim Khoom
| Khoom siv | Specification | Ntau |
|---|---|---|
| Kab rov tav extrusion xovxwm | 1500T | 1 |
| Kab rov tav extrusion xovxwm | 2500T | 1 |
| Txias lub rooj zaum | 10m ntev | 6 |
| Cold drawing bench (hnyav phab ntsa) | 6 m luas | 4 |
| Cov menyuam straightener | OD 6-50mm | 3 |
| Rotary straightener | OD 50-90mm | 1 |
| Annealing rauv (tswj cua) | 650-800 degree | 3 |
| Txiav-tawm tshuab (automatic) | OD 6-90mm | 2 |
| U- tshuab dabtsi yog khoov | OD 12-38 mm | 2 |
| Xaus ntsej muag thiab deburring | Txhua qhov ntau thiab tsawg | 2 |
| Eddy tam sim no tester | 100% ECT | 3 |
| Hydrostatic Tester | 4 chaw nres tsheb | 1 |
| PMI phom (XRF) | Hauv -kev ua pov thawj | 2 |
| Ultrasonic thickness ntsuas | Portable | 4 |
Peb cov khoom siv tooj liab
| Yam khoom | Cov alloys | Cov qauv | Tej kev siv |
|---|---|---|---|
| Tube (seamless) | C70600, C71500, C12200, C44300, C68700 | ASTM B111, ASME SB111 | Thaum tshav kub kub exchangers, condensers, marine piping |
| Tube (seamless) | C12200, C70600, C71500 | ASTM B88, ASTM B466 | Cov kab dej, roj kab, shipbuilding |
| Qws / bar | C11000, C36000, C46400, C63000 | ASTM B16, ASTM B124 | Valve stems, fittings, marine hardware |
| Hlau | C11000, C16200, C19400 | ASTM B1, ASTM B3 | Hluav taws xob conductors, vuam hlau |
| Sawb / coil | C11000, C19400, C26000, C26800, C52100 | ASTM B152, ASTM B465 | Terminals, springs, transformer windings |
| Phaj / ntawv | C10100, C11000, C12200, C70600, C71500, C46400 | ASTM B152, ASTM B171 | Tube nplooj ntawv, baffles, tshav kub exchanger phaj |
