Rau seawater txias tshuab, condensers, thiab desalination nroj tsuag, ASTM B111 C68700 txhuas tooj dag muaj 90% ntawm corrosion kuj ntawm C70600 CuNi 90/10 ntawm 40-50% tus nqi qis.Thaum CuNi 90/10 muaj kev yaig zoo me ntsis, C68700 yeej ntawm tus nqi. Phau ntawv qhia no sib piv cov khoom, kev ua tau zoo, tus nqi, thiab kev siv.
Qhov txawv tseem ceeb
| Parameter | ASTM B111 C68700 (Aluminium Brass) | ASTM B111 C70600 (CuNi 90/10) |
|---|---|---|
| Kev sib xyaw | Cu 76-79%, Zn 19-22%, Al 1.5-2.5% | Cu 88.5%, Ni 10%, Fe 1.5% |
| Tensile zog | 550-750 MPa | 350-520 MPa |
| Yield zog | 250-450 MPa | 125-250 MPa |
| Qhov ntom | 8.2 g / cm³ | 8.9 g / cm³ |
| Thermal conductivity | 105 W/(m·K) | 40–50 W/(m·K) |
| Critical erosion tshaj tawm | 5.2 m/s | 4.5 m/s |
| Dezincification tus nqi | <0.025 mm/year | Tsis siv tau (tsis muaj zinc) |
| Biofouling kuj | Zoo heev (natural Cu ions) | Zoo heev |
| Tus nqi ntawm cov khoom siv txheeb ze | 1 x (lub hauv paus) | 1.7–2.0x |
| Muaj nyob hauv Suav teb | GNEE stocks standard sizes | GNEE stocks txwv qhov ntau thiab tsawg |
ASTM B111 C68700 yeej muaj zog thiab pheej yig duayog c70600. Txawm li cas los xij, CuNi 90/10 yog qhov zoo dua rau qhov kub thiab txias heev lossis ammonia- muaj dej.
Cov ncauj lus kom ntxaws kev sib piv
Corrosion Resistance - Dej hiav txwv
| Ib puag ncig | C68700 kev ua haujlwm | C70600 kev ua haujlwm | Yeej |
|---|---|---|---|
| Cov dej hiav txwv huv huv (pH 7.5-8.3) | <0.025 mm/year | <0.020 mm/year | Khi |
| Sulfide- dej hiav txwv qias neeg | 8 × zoo dua tooj dag | 3 × zoo tshaj tooj dag | C68700 |
| High-velocity seawater (>4 m/s) | 5.2 m / s txwv | 4.5 m / s txwv | C68700 |
| Dej hiav txwv | Zoo (oxide zaj duab xis ruaj khov) | Zoo heev | C70600 |
| Ammonia{0}}muaj dej | Zam (kev nyuaj siab corrosion) | Zoo | C70600 |
Cov ntsiab lus tseem ceeb:Rau feem ntau cov ntawv thov marine,ASTM B111 C68700 ntais ntawv lossis ntaus C70600ntawm ib nrab tus nqi. Tsuas yog zam C68700 yog tias muaj ammonia.
Mechanical & Physical Properties
| Khoom | C68700 | C70600 | Qhov zoo |
|---|---|---|---|
| Tensile zog (MPa) | 550–750 | 350–520 | C68700 +40% |
| Hardness (HB) | 140–180 | 80–110 | C68700 |
| Elongation (%) | 15–25 | 30–40 | C70600 (ntau ductile) |
| Kev tiv thaiv kev yaig (m / s) | 5.2 | 4.5 | C68700 |
| Thermal conductivity (W / m · K) | 105 | 45 | C68700 (zoo dua kub hloov) |
| Fatigue limit (MPa) | 280 | 150 | C68700 |
Cov neeg yuav khoom ceeb toom:c68700 uamuaj zog thiab nyuaj duadua li C70600, lub ntsiab lus zoo dua rau kev yaig thiab cavitation. Txawm li cas los xij, C70600 yog ductile ntau dua (yooj yim nthuav dav rau hauv cov ntawv raj).
Kev sib piv Biofouling
Ob lub alloys txwv kev loj hlob hauv hiav txwv, tab sis los ntawm cov txheej txheem sib txawv:
C68700:Tso cov tooj liab ions tsis tu ncua -fouling voj voog ncua 3 ×vs. standard tooj dag
C70600:tooj liab-nickel nto tsim ib zaj duab xis tiv thaiv uas deters barnacles - me ntsis ntev tiv thaiv nyob rau hauv dej sov heev
Kev txiav txim:Rau cov dej kub kub (30℃+), C70600 muaj qhov zoo dua. Rau cov dej hiav txwv kub lossis dej txias, C68700 zoo sib xws.
Daim Ntawv Qhia Kev Xaiv Daim Ntawv Thov
| Daim ntawv thov | Pom zoo Alloy | Vim li cas? |
|---|---|---|
| Seawater txias kab (nkoj, fais fab nroj tsuag) | ASTM B111 C68700 Cov | Tus nqi qis dua, siab dua kev txwv |
| Desalination tshav kub exchangers | C68700 | Zoo dua thermal conductivity (105 vs 45 W / m·K) |
| Condenser (cov dej hiav txwv huv) | C68700 | 8 × zoo dua tooj dag, ib nrab nqi ntawm CuNi |
| Sulfide-cov chaw muaj kuab paug | C68700 | Superior tsis kam rau sulfur nres |
| Ammonia-raws li cov nroj tsuag tshuaj | C70600 | C68700 raug kev nyuaj siab corrosion |
| High-temperature (>300 degree) | C70600 | C68700 softens saum 300 degree |
| Tube sheet expansion (thin walls) | C70600 | Ntau ductile, tsawg dua kev pheej hmoo ntawm kev tawg |
| Cov peev nyiaj- txwv cov haujlwm | C68700 | 40-50% pheej yig dua |
Kev xa khoom los ntawm GNEE (Tuam Tshoj)
GNEE muab ob qho tib si alloys ibASTM B111, ASME SB 111, thiabMIL -C-20265:
| Parameter | C68700 | C70600 |
|---|---|---|
| OD ntau | 6-200 hli | 6-150 hli |
| Phab ntsa thickness | 2-20 hli | 1.5-10 hli |
| Max ntev | 12,000 mm | 10,000 mm |
| Tshuag muaj | Siab(qhov ntau thiab tsawg) | Txwv tsis pub |
| Lub sijhawm khoom xa tuaj | 7-10 hnub | 15-20 hnub |
| Nano{0}}kev kho mob | Yog (+40% corrosion life) | Tsis muaj |
FAQ
Q1: ASTM B111 C68700 vs C70600 - uas muaj kev cuam tshuam zoo dua?
A: C68700 muaj qhov cuam tshuam loj dua qhov nrawm dua: 5.2 m / s vs . 4.5 m / s rau C70600 (ib ASTM G73).
Qhov no txhais tau tias C68700 tuaj yeem ua haujlwm sai dua - dej hiav txwv ntws tsis muaj oxide zaj duab xis puas. Rau desalination los yog fais fab nroj tsuag noj nrog velocities 4-5 m / s, C68700 yeej superior. Tshaj 5.2 m / s, tsis muaj hlau tsis haum - xav txog titanium.
Q2: Puas yog C70600 tsim nyog tus nqi ntxiv rau cov dej hiav txwv txias?
A: Tsis yog - rau 90% ntawm kev siv dej hiav txwv, C68700 muab tus nqi zoo dua.
C70600 tus nqi 70-100% ntau dua tab sis tsuas yog txuas lub neej los ntawm 20-30% hauv dej hiav txwv huv. Txawm li cas los xij, yog tias koj cov dej muaj ammonia (piv txwv li, chiv chiv) lossis kub tshaj 300 degree, them tus nqi them rau C70600.
Q3: Puas yog ASTM B111 C68700 raug kev txom nyem los ntawm dezincification?
A: Tsis yog - qhov ntxiv aluminium txwv dezincification rau<0.025 mm/year.
Tus qauv tooj dag (C27000) dezincifies sai (0.2-0.3 hli / xyoo), tab sis C68700 cov ntsiab lus txhuas suppresses zinc leaching. Qhov no yog vim li cas C68700 hu ua "aluminium brass" - nws daws qhov classic tooj dag tsis ua haujlwm.
Q4: Kuv puas tuaj yeem txuas C68700 rau C70600?
A: Yog lawm, tab sis siv C71500 (CuNi 70/30) muab tub lim hlau thiab cais galvanically.
Vuam tsim ob peb galvanic. Use 70/30 CuNi filler (AWS A5.6 ERCuNi). Tom qab vuam, siv lub dielectric txheej ntawm C70600 sab. Rau cov txheej txheem tseem ceeb, siv flanged pob qij txha nrog insulating gaskets es tsis txhob vuam.
Q5: Dab tsi yog qhov kub siab tshaj plaws rau C68700 raj?
A: 300℃nruam, 350℃intermittent.
Thaum 300 degree, kev laus nce hardness mus rau 180 HB. Tshaj 350 degree, aluminium oxide zaj duab xis tawg thiab corrosion kuj poob qis. C70600 tuaj yeem lis 400℃tsis tu ncua - tsuas yog thermal kom zoo ntawm CuNi.
Q6: GNEE puas pom zoo rau cov nroj tsuag desalination tshiab?
A: ASTM B111 C68700 nrog nano{2}} kev kho saum npoo.
Desalination yuav tsum muaj thermal conductivity (C68700: 105 W/m·K vs. C70600: 45 W/m·K) rau kev siv hluav taws xob. Nano- kho C68700 ua tiav<0.015 mm/year corrosion rate – matching C70600 at half the cost. GNEE has supplied this to three Middle East desalination projects.
Q7: Kuv yuav txheeb xyuas qhov cuav C68700 vs C70600 li cas?
A: Siv lub portable XRF (X-ray fluorescence) analyzer.
C68700 muaj 1.5-2.5% Al thiab 19-22% Zn. C70600 muaj 10% Ni thiab<0.5% Zn. GNEE provides mill certificates (EN 10204 3.1) with each shipment. Always reject material without traceable documentation.
Q8: Dab tsi yog MOQ rau ASTM B111 C68700 los ntawm GNEE?
A: 500 kg rau qhov ntau thiab tsawg, 200 kg rau nano{2}}kho cov hlab.
Cov qauv xaj (50-200 kg) raug lees txais rau cov neeg siv khoom tshiab. Tshuag loj (OD 12-50 hli, phab ntsa 2-5 hli) nkoj hauv 7 hnub. Customize: 20-30 hnub.
Kev sim nruj rau C68700 - Traceable Quality
Txhua pawg ntawm C68700 cov khoom tau dhau los ua ntau yam - cov txheej txheem tshuaj xyuas. Siv optical emission spectrometry (OES), peb xyuas cov tshuaj muaj pes tsawg leeg - tshwj xeeb tshaj yog cov tseem ceeb txhuas (2.0–3.0%) thiab arsenic cov ntsiab lus - los lav dezincification corrosion kuj. Kev ntsuam xyuas Tensile thiab Rockwell hardness checks paub meej tias cov khoom siv kho tshuab, thaum kuaj hydrostatic thiab ultrasonic xyuas kom cov pa tawm -dawb ncaj ncees rau cov khoom siv hluav taws xob los yog cov raj condenser. Peb kuj muab cov ntaub ntawv qhia txog kev taug qab tag nrho, suav nrog qhov loj me, qhov roughness ntawm qhov chaw, thiab kev txheeb xyuas qhov loj ntawm cov nplej. Txhua qhov kev ntsuam xyuas tau ua nyob rau hauv peb ISO 17025-lab ntawv pov thawj, kom ntseeg tau tias ua raws li ASTM B111, ASME SB111, lossis cov qauv tshwj xeeb rau cov neeg siv khoom.
Export-Packing - Anti-Xeb & Ntoo Case
Tom qab kev soj ntsuam dhau lawm, tag nrho cov raj tau ntim raws li cov qauv xa tawm thiab cov neeg siv khoom - cov cai tshwj xeeb. Cov txheej txheem ntim khoom tau sau tseg hauv qab no kom paub meej txog kev taug qab thiab kev puas tsuaj - pub dawb.
Packing cov kauj ruam qhia hauv video & duab:
1. Tube tu & ziab
2. Cov kaus mom yas kawg ntawm ob qhov kawg
3. VCI los tiv thaiv- xeb daim ntawv qhwv
4. Bundle strapping nrog noo noo barrier zaj duab xis
5. Plywood ntoo rooj plaub (ISPM-15 raws) nrog ua npuas ncauj padding
6. Daim ntawv lo nrog ASTM qib, ntau tus lej, thiab cov ntawv tshuaj ntsuam xyuas
Precision Manufacturing rau C68700 Alloy
Peb lub Hoobkas tau nruab nrog cov tshuab ua kab rov tav nruam casting, hnyav -cov haujlwm extrusion presses (txog 3,500 tons), thiab siab -cov kab kos txias txias tshwj xeeb rau C68700 txhuas tooj dag. Txhawm rau kom ntseeg tau tias microstructure tsis sib xws thiab qhov tsis xws luag-dawb qhov chaw, peb kuj siv cov tshuab ntsuas online eddy tam sim no thiab tsis siv neeg txiav & chamfering units. Tag nrho cov txheej txheem tsim khoom yog tswj los ntawm lub hauv paus SCADA system, ua kom muaj tseeb - lub sij hawm saib xyuas ntawm qhov tsis xws li kub, ceev, thiab lubrication - lav zoo ib yam khoom siv thiab qhov tseeb qhov tseeb rau txhua C68700 raj lossis pas nrig.
Copper & Copper Alloy Cov Khoom - Cov Khoom Muag Khoom
| Daim ntawv khoom | Common Alloys / Qib | Qhov Loj | Cov qauv | Tej kev siv |
|---|---|---|---|---|
| Tube / Tube | C12200, C11000, C68700, C70600, C71500, C44300, C27000 | OD: 4mm-219mm Phab ntsa: 0.5mm-20mm Ntev: mus txog 15m |
ASTM B68, B75, B111, B280, B359, B466 | Thaum tshav kub kub exchangers, condensers, HVAC, kav dej, roj txias |
| Phaj / Ntawv | C11000, C12200, C26000, C26800, C52100, C68700 | Loj: 0.5mm-50mm Dav: mus txog 1200mm Ntev: mus txog 4000mm |
ASTM B152, B169, B103, B465 | Hluav taws xob qhov chaw, ru tsev, gaskets, industrial panels |
| Qws / Bar | C11000, C26000, C36000, C46400, C48500, C63000 | Loj: 3mm-120mm Ntev: 1m - 6m (los yog kev cai) |
ASTM B16, B124, B138, B150, B453 | Valve stems, shafts, fasteners, machined Cheebtsam |
| Hlau | C11000, C16200, C17500, C26000, C52100, C64700 | Loj: 0.1mm-12mm Coil hnyav: mus txog 100kg |
ASTM B1, B2, B3, B197, B206, B624 | Vuam electrodes, hluav taws xob conductors, springs, mesh |
| Sawb / Ntawv Nyiaj | C11000, C19400, C26000, C26800, C52100, C70250 | Loj: 0.05mm-3.0mm Dav: 5mm-600mm |
ASTM B36, B465, B694, B888 | Connectors, terminals, roj teeb tabs, shielding, stamping qhov chaw |
Tshawb xyuas Hnub no Cov Tshuag & Lub Sijhawm Lead
