Koj yuav tsum xaiv qhov twg?
| Koj Daim Ntawv Thov | Pom zoo Alloy |
|---|---|
| Txheem seawater kav, nruab nrab tshaj tawm (txog 3.5 m / s) | C71500 |
| Siab - dej hiav txwv ceev (3.5-5 m/s) | C71500 |
| Siab heev -ceev seawater (5-7 m/s) | C71640 |
| Siab xuab zeb los yog silt ntsiab lus (abrasive tej yam kev mob) | C71640 |
| High turbulence los yog impingement | C71640 |
| Qhov chaw uas nquag ntws rov qab los yog dej rauj | C71640 |
| Condenser raj nyob rau hauv lub hwj chim nroj tsuag | C71500 |
| Offshore platform risers thiab ceg sheathing | C71500 |
| Seawater intake screens thiab khib nyiab khib nyiab | C71640 |
| Hluav taws kub systems nrog siab txaus xav tau | Ob leeg txais tau |
C71640 yog dab tsi?
C71640 yog tooj liab nickel alloy nrog cov ntsiab lus hlau siab dua C71500, tsim tshwj xeeb rausuperior erosion kujnyob rau hauv siab -ceev thiab abrasive seawater tej yam kev mob.
| Khoom | C71640 | C71500 |
|---|---|---|
| Hom npe | CuNi30Fe2Mn2 | CuNi30Mn1Fe |
| UNS npe | C71640 | C71500 |
| EN npe | CuNi30Fe2Mn2 | CuNi30Mn1Fe |
| Qhov tseem ceeb feature | Ntxiv hlau rau erosion kuj | Txheem 70/30 cupronickel |
| Thawj daim ntawv thov | Siab - nrawm, abrasive, turbulent seawater | General marine seawater kev pab |
Tshuaj muaj pes tsawg leeg
Qhov sib txawv tseem ceeb ntawm C71500 thiab C71640 yoghlau cov ntsiab lus. C71640 muaj kwv yees li ob npaug ntawm cov hlau, uas ua rau kev txhim kho kev yaig.
| Lub ntsiab | C71500 (70/30) | C71640 | Qhov txawv |
|---|---|---|---|
| Copper (Cu) | Qhov nyiaj tshuav (~ 69%) | Qhov nyiaj tshuav (~ 66%) | Tsawg me ntsis hauv C71640 |
| Nickel (Ni) | 29.0 – 33.0% | 29.0 – 32.0% | Zoo sib xws |
| Hlau (Fe) | 0.40 – 1.0% | 1.7 – 2.5% | C71640 muaj 2-3x ntau hlau |
| Manganese (Mn) | 1.0% max | 1.5 – 2.5% | C71640 muaj manganese ntau dua |
| Lead (Pb) | 0.02% max | 0.02% max | Ib yam |
| Zinc (Zn) | 0.50% max | 0.50% max | Ib yam |
Mechanical Properties
| Khoom | C71500 | C71640 | Yeej |
|---|---|---|---|
| Tensile zog (annealed) | 52,000 psi min | 63,000 psi min | C71640 (+21%) |
| Yield zog (annealed) | 18,000 psi min | 25,000 psi min | C71640 (+39%) |
| Elongation (ntxiv) | 30-45% | 30-40% | Zoo sib xws |
| Hardness | 60-90 PAB | 80-100 PAB | C71640 zog |
C71640 muaj zog dua C71500 - txog 20-40% siab zog nyob ntawm cov khoom.
Lub cev muaj zog
| Khoom | C71500 | C71640 |
|---|---|---|
| Qhov ceev (g / cm³) | 8.94 | 8.91 |
| Melting point (zeeg) | 1170-1240 | 1170-1240 |
| Thermal conductivity (W / m · K) | 29 | 25 |
| Hluav taws xob conductivity (% IACS) | 4-5 | 3-4 |
| Modulus ntawm elasticity (GPa) | 152 | 152 |
Zoo ib yam tag nrho, tab sis C71640 muaj tsawg dua thermal conductivityvim muaj hlau ntau dua. Rau kev siv cov khoom siv hluav taws xob uas thermal conductivity tseem ceeb, C71500 yuav nyiam dua.
Erosion Resistance
Qhov no yog qhov sib txawv tseem ceeb tshaj plaws ntawm ob lub alloys.
| Qhov xwm txheej | C71500 kev ua haujlwm | C71640 Kev ua haujlwm |
|---|---|---|
| Cov dej hiav txwv huv, nruab nrab nrawm (2-3 m / s) | Zoo heev | Zoo heev |
| Dej hiav txwv huv, siab tshaj tawm (4-5 m / s) | Zoo | Zoo heev |
| Xuab zeb los yog xuab zeb hauv dej | Ncaj ncees rau Zoo | Zoo heev |
| Siab turbulence (khoov, txwv) | Zoo | Zoo heev |
| Impingement nres | Zoo | Zoo heev |
| Cavitation | Ncaj ncees | Zoo |
C71640 yog tsim tshwj xeeb rau cov xwm txheej uas muaj cov khib nyiab (xuab zeb, silt) nyob rau hauv dej los yog qhov chaw nrawm heev (5-7 m / s).
Cov ntsiab lus hlau ntau dua (1.7-2.5% vs. 0.4-1.0%) tsim cov zaj duab xis tawv dua, ruaj khov dua uas tiv taus kev yaig.
Daim ntawv thov
C71500 Daim Ntawv Thov (General Marine)
Naval seawater piping (tus qauv)
Kev lag luam shipboard cua txias tshuab
Lub zog cog condenser
Desalination evaporator tubes
Offshore platform firewater systems
Thaum tshav kub kub exchangers
Nres kab
C71640 Daim Ntawv Thov (High-Erosion Ib puag ncig)
Cov ntxaij vab tshaus dej hiav txwv thiab cov khib nyiab khib nyiab - siab txaus, cov khib nyiab cuam tshuam
Lub tshuab hluav taws xob nrog kev xav tau siab heev - yaig ntawm qhov nrawm
Platform ceg sheathing nyob rau hauv cov dej xuab zeb qhov chaw - abrasion kuj
Dredge piping thiab slurry kab - cov khib nyiab yaig
Seawater nqa twj tso kua mis thiab cov kab tawm - siab tshaj tawm, turbulence
Tidal fais fab thiab yoj lub zog tshuab - ntws rov qab, muaj kev pheej hmoo cavitation
Condenser tubes nyob rau hauv cov xuab zeb los yog silty seawater - inlet kawg erosion
Qhov twg yog qhov yooj yim rau Weld?
| Khoom | C71500 | C71640 |
|---|---|---|
| Weldability | Zoo heev | Zoo (zoo heev nrog cov txheej txheem tsim nyog) |
| Pom zoo muab tub lim | ERNi-7 | ERNi-7 (ib yam) |
| Preheat yuav tsum tau | Tsis muaj | Tsis muaj |
| Kev xav tshwj xeeb | Txuj | Tsawg cua sov input, tswj interpass kub |
Ob lub alloys tuaj yeem welded tiavsiv cov txuj ci zoo sib xws. C71640 xav tau kev saib xyuas ntau dua rau cov cua sov nkag thiab cuam tshuam kub vim nws lub zog ntau dua thiab cov ntsiab lus hlau.
Fabrication
| Khoom | C71500 | C71640 |
|---|---|---|
| Txias khoov | Zoo | Kev Ncaj Ncees (yuav tsum muaj lub vojvoog khoov loj dua, txo kev ntxhov siab) |
| Kub ua haujlwm | Zoo | Zoo |
| Machinability ntsuas | 20% | 15-20% |
C71640 yog ib qho nyuaj thiab muaj zog, ua rau nws nyuaj rau kev khoov txiasua c71500. Rau kev khoov nruj, xav txog:
Loj khoov vojvoog (yam tsawg kawg 3-4 × OD vs . 2-3 × OD rau C71500)
Kev ntxhov siab nyem annealing tom qab khoov (pom zoo)
Kub khoov yog ua tau
Corrosion Resistance
| Corrosion Hom | C71500 | C71640 |
|---|---|---|
| General seawater corrosion | Zoo heev | Zoo heev |
| Pitting kuj | Zoo heev | Zoo heev |
| Kev txhim kho corrosion | Zoo heev | Zoo heev |
| Kev ntxhov siab corrosion cracking (SCC) | Tiv thaiv kab mob | Tiv thaiv kab mob |
| Biofouling kuj | Zoo heev | Zoo heev |
| Kev yaig-corrosion | Zoo | Zoo heev |
| Impingement nres | Zoo | Zoo heev |
| Cavitation yaig | Ncaj ncees | Zoo |
Rau tus qauv corrosion (tsis yog - yaig), ob qho tib si alloys ua zoo ib yam.Qhov kom zoo dua ntawm C71640 yog purely nyob rau hauv mechanical yaig kuj.
Tus nqi sib piv
| Nqi Factor | C71500 | C71640 |
|---|---|---|
| Tus nqi raw khoom | Nruab nrab-siab | Siab dua (+15-25%) |
| Tus nqi ua haujlwm | Txuj | Siab dua (ntau dua ua haujlwm) |
| Muaj | Muaj dav | Tsis tshua muaj tshwm sim, tej zaum yuav siv sij hawm ntev dua |
| Tus nqi them tag nrho | Lub hauv paus | +20-35% |
C71640 yog kim dua vim:
Cov ntsiab lus hlau ntau dua (pheej yig) tab sis kev ua haujlwm nyuaj dua
Tsawg ntau lawm ntim (tsawg dua)
Nyuaj rau kev ua haujlwm txias thiab tshuab
Muaj thiab Lub Sijhawm Lead
| Qhov xwm txheej | C71500 | C71640 |
|---|---|---|
| Tshuag muaj | Muaj dav | txwv |
| Mill ntau lawm lub sijhawm | 30-45 hnub | 45-90 hnub |
| Yam tsawg kawg nkaus kom muaj nuj nqis | 500-1000 kg | 1000-2000 kg |
| Tus naj npawb ntawm cov mills tsim | Ntau | Tsawg |
C71500 vs C71640
| Qhov xwm txheej | C71500 | C71640 |
|---|---|---|
| Nickel cov ntsiab lus | 29-33% | 29-32% |
| Cov ntsiab lus hlau | 0.40-1.0% | 1.7-2.5% |
| Tensile zog (annealed) | 52 ksg | 63 ksg |
| Yield zog (annealed) | 18 ksg | 25 ksg |
| Erosion kuj | Zoo | Zoo heev |
| Sand / solids kuj | Ncaj ncees rau Zoo | Zoo heev |
| Siab - txwv ceev | ~5 m/s | ~7 m/s |
| Txias khoov formability | Zoo | Ncaj ncees |
| Weldability | Zoo heev | Zoo (nrog cov txheej txheem) |
| Thermal conductivity | 29 W/m·K | 25 W/m·K |
| Nqi | Lub hauv paus | +20-35% |
| Muaj | Siab | txwv |
| Zoo tshaj rau | General marine | High erosion, abrasive, siab tshaj tawm |
FAQ
Q1: Dab tsi yog qhov txawv ntawm C71500 thiab C71640?
Cov ntsiab lus hlau.C71640 muaj 1.7-2.5% hlau vs. C71500's 0.40-1.0% hlau. Cov ntsiab lus hlau siab dua no muab qhov zoo dua rau kev yaig nyob rau hauv high-ceev, xuab zeb, los yog turbulent seawater. Rau feem ntau cov ntawv thov marine, C71500 txaus. Rau qhov xav tau tshaj plaws (xuab zeb, nrawm nrawm, nquag ntws rov qab), xaiv C71640.
Q2: Puas yog C71640 muaj zog dua C71500?
Yog, muaj zog heev.C71640 muaj zog tensile yam tsawg kawg nkaus ntawm 63,000 psi vs. C71500 ntawm 52,000 psi (annealed mob). Lub zog tawm los yog 25,000 psi vs . 18,000 psi. Lub zog siab dua no ua rau C71640 tiv taus ntau yam kev puas tsuaj tab sis kuj nyuaj rau khoov thiab tsim.
Q3: Kuv puas tuaj yeem siv C71640 es tsis txhob C71500 rau kev yaig zoo dua?
Yog lawm, C71640 muab kev tiv thaiv zoo dua.Cov ntsiab lus hlau siab dua tsim cov yeeb yaj kiab uas muaj zog dua, ruaj khov dua uas tiv thaiv kev tshem tawm los ntawm cov dej ntws, xuab zeb, los yog turbulence. Yog tias koj daim ntawv thov muaj kev tshaj tawm siab tshaj plaws (siab dua 5 m / s), xuab zeb lossis silt, lossis nquag ntws rov qab, C71640 tsim nyog tus nqi ntxiv.
Q4: Puas yog C71640 kim dua C71500?
Yog, feem ntau 20-35% kim dua.C71640 tsis tshua muaj, nyuaj rau txheej txheem, thiab ua los ntawm cov mills tsawg. Tus nqi ntxiv yog tsim nyog tsuas yog rau cov ntawv thov uas xav tau kev tiv thaiv kev yaig ntau dua. Rau tus qauv marine tej yam kev mob, C71500 muab tus nqi zoo dua.
Q5: Qhov twg yog C71640 feem ntau siv?
Cov ntxaij vab tshaus dej hiav txwv, cov khib nyiab khib nyiab, cov dej tua hluav taws nrog cov dej ntws siab, lub platform ceg sheathing hauv cov dej xuab zeb, cov kav dej phwj, cov kab slurry, seawater nqa twj, thiab tidal / wave zog systems.Txhua daim ntawv thov qhov twg xuab zeb, silt, nrawm nrawm, lossis muaj kev kub ntxhov hnyav.
Q6: Kuv puas tuaj yeem vuam C71640 nrog tib txoj kev ua C71500?
Zoo sib xws tab sis tsis zoo ib yam.Siv tib cov hlau muab tub lim (ERNi-7). Txawm li cas los xij, C71640 yuav tsum muaj cov cua kub qis dua thiab kev tswj nruj dua ntawm kev sib tshuam kub vim nws lub zog ntau dua. Cov txheej txheem vuam tsim nyog (WPS) raug pom zoo rau C71640 welds tseem ceeb.
Q7: Puas yog C71640 muaj nyob rau hauv tib daim ntawv raws li C71500?
Yog, tab sis muaj tsawg dua.C71640 yog muaj nyob rau hauv seamless yeeb nkab, raj, phaj, ntawv, bar, thiab forgings. Txawm li cas los xij, tsis yog txhua tus neeg muag khoom Tshuag C71640. Npaj rau lub sij hawm txhuas ntev (45-90 hnub) thiab ntau dua qhov kev txiav txim siab tsawg kawg nkaus (feem ntau 1000-2000 kg).
Q8: Puas yog C71640 puas muaj kev tiv thaiv corrosion zoo dua li C71500?
Hais txog kev xeb dav dav (tsis yog- yaig), zoo ib yam.Ob lub alloys muaj kev tiv thaiv zoo rau seawater corrosion, pitting, thiab kev nyuaj siab corrosion cracking. Qhov kom zoo dua ntawm C71640 yog purely nyob rau hauv mechanical yaig kuj, tsis tshuaj corrosion kuj.
Q9: Kuv puas tuaj yeem hloov C71640 rau C71500 hauv qhov system uas twb muaj lawm?
Yog, tab sis yuav tsum paub txog qhov sib txawv ntawm lub zog, thermal conductivity, thiab fabrication.C71640 muaj zog dua (stiffer) thiab muaj qis dua thermal conductivity. Rau feem ntau cov kav dej, kev hloov pauv ncaj qha yog qhov zoo. Rau cov khoom siv hluav taws xob, tshuaj xyuas cov qauv thermal. Rau kev khoov nruj dua, C71640 yuav xav tau radii loj dua.
Q10: Dab tsi yog qhov siab tshaj dej hiav txwv tshaj tawm rau C71640?
C71640 tuaj yeem tswj tau nrawm txog li 7 m / s hauv dej hiav txwv huv, piv rau 5 m / s rau C71500.Nrog cov xuab zeb lossis cov xuab zeb, C71640 tseem ua tau zoo tshaj C71500. Txawm li cas los xij, rau qhov siab tshaj plaws (siab dua 7 m / s), xav txog lwm cov ntaub ntawv xws li titanium lossis super duplex stainless hlau.
Kev txiav txim xaiv
| Lus nug | Teb | Kev pom zoo |
|---|---|---|
| Puas yog dej hiav txwv ceev tshaj 5 m/s? | Tsis muaj → | C71500 |
| Puas yog dej hiav txwv ceev tshaj 5 m/s? | Yog → | Mus rau lo lus nug tom ntej |
| Puas muaj xuab zeb los yog av nyob hauv dej? | Tsis muaj → | C71500 tseem tuaj yeem ua haujlwm; xav txog C71640 rau kev nyab xeeb |
| Puas muaj xuab zeb los yog av nyob hauv dej? | Yog → | C71640 pom zoo |
| Puas muaj dej ntws rov qab los yog dej rauj? | Yog → | C71640 pom zoo |
| Puas yog qhov chaw txwv yuav tsum tau nruj khoov? | Yog → | C71500 yooj yim khoov; C71640 xav tau radii loj |
| Puas yog tus nqi tseem ceeb? | Yog → | C71500 |
| Puas yuav tsum muaj kev ntseeg siab tshaj plaws tsis hais tus nqi? | Yog → | C71640 |
