C72200 yog dab tsi?
C72200 yog UNS lub npe rau chromium-cov kabmob tooj liab-nickel alloy siv rau hauv condenser thiab kub exchanger raj rau cov dej hiav txwv loj thiab tshuaj lom neeg. Nyob rau hauv Suav lag luam terminology lub alloy tsev neeg feem ntau hu ua dawb tooj liab vim nws silvery tsos. Qhov sib ntxiv chromium refines tus qauv thiab tsa lub zog siab dua li tus qauv 70/30 cupronickel thaum khaws cia zoo heev corrosion kuj.
Tshuaj muaj pes tsawg leeg
| Element | Cov ntsiab lus (%) |
|---|---|
| Copper (Cu), incl. nyiaj | 79.3 min (sib npaug) |
| Nickel (Ni), incl. cobalt | 15.0 - 18.0 |
| Chromium (Cr) | 0.30 - 0.70 |
| Hlau (Fe) | 0.50 - 1.0 |
| Manganese (Mn) | 1.0 max |
| Zinc (Zn) | 1.0 max |
| Lead (Pb) | 0.05 max |
Mechanical Properties
| Khoom | Tus nqi |
|---|---|
| Tensile zog, annealed | 380 - 450 MPa |
| Tensile zog, txias kos | 450 - 700 MPa |
| Yield zog | 170 - 400 MPa los ntawm npau taws |
| Elongation | 15 - 40% |
| Qhov ntom | Txog 8.9 g / cm3 |
| Hluav taws xob conductivity | Txog 5% IACS |
| Melting ntau | Hais txog 1150 - 1220 C |
Corrosion Resistance
C72200 tiv thaiv dej hiav txwv corrosion, impingement nres, thiab biofouling, thiab tiv thaiv chloride stress-corrosion cracking. Cov chromium thiab hlau ntxiv ntxiv dag zog rau cov yeeb yaj kiab tiv thaiv, txhim kho corrosion kuj nyob rau hauv siab -ceev thiab particulate-laden cooling water piv nrog standard cupronickel. Nws yog qhov tsim nyog rau cov dej qias neeg thiab rau cov kwj dej uas muaj cov tshuaj chloride tawm tsam ntau cov hlau tsis huv.
Ntau lawm thiab Standards
C72200 raj yog tsim los ntawm extrusion los yog piercing ua raws li los ntawm txias txias thiab annealing, muab rau ASTM B111, ASME SB111, thiab ASTM B466 rau yeeb nkab. Cov raj yog dov rau hauv cov ntawv raj lossis foob-welded nrog cov muab tub lim, thiab cov ntawv pov thawj muaj xws li tshuaj ntsuam xyuas, ntsuas tensile, flattening thiab expansion test, thiab eddy-tam sim no los yog hydrostatic kuaj.
Tej kev siv
Seawater condensers thiab tshav kub exchangers nyob rau hauv lub fais fab nroj tsuag.
Desalination cog evaporator thiab brine rhaub raj.
Cov khoom siv hluav taws xob ua hluav taws xob tuav cov tshuaj chloride-cov kabmob media.
Offshore platform cua txias tshuab.
Siab - cov dej txias tshaj qhov hluav taws xob uas 90/10 cupronickel yuav yaig.
Cov lus nug nquag
Q: Vim li cas C72200 hu ua tooj liab dawb?
A: Nws yog lub sijhawm ua lag luam Suav rau tsev neeg silvery cupronickel; C72200 yog chromium-cov kabmob qib siv rau cov raj thiab cov yeeb nkab.
Q: C72200 txawv ntawm C71500 li cas?
A: C72200 ntxiv 0.30 rau 0.70 feem pua chromium rau tooj liab -nickel puag, muab lub zog ntau dua thiab txhim kho corrosion kuj nrog cov ntsiab lus nickel qis me ntsis.
Q: C72200 puas tuaj yeem welded?
A: Yog, nrog TIG lossis MIG siv cov tooj liab sib xws -nickel muab tub lim thiab cov txheej txheem tsim nyog; cov raj feem ntau yog cov menyuam- nthuav dav thiab foob-welded rau hauv cov ntawv raj.
Q: Dab tsi yog qhov conductivity ntawm C72200?
A: Txog 5 feem pua IACS, zoo ib yam li lwm cov cupronickels; thermal conductivity yog correspondingly tsawg, yog li tshav kub exchanger tsim siv txaus cheeb tsam.
Q: Cov qauv twg npog C72200 raj?
A: ASTM B111 thiab ASME SB111 rau seamless condenser thiab kub exchanger raj, thiab ASTM B466 rau yeeb nkab.
Q: Puas yog C72200 resistant rau biofouling?
A: Yog, zoo li lwm yam cupronickels nws tso cov tooj liab ions ntawm tus nqi tswj uas inhibits barnacle thiab mussel txuas.
