UNS N10276 (C276) tsis muaj thiab siv
1 Txheej txheem cej luam
Alloy UNS N10276 (Alloy C276) paub txog nws cov corrosion kuj nyob rau hauv ntau yam corrosive xov xwm. Vim nws cov ntsiab lus molybdenum siab, nws yog resistant rau localized corrosion xws li pitting. Vim tias cov ntsiab lus carbon tsawg, carbide nag lossis daus yog txo kom qis thaum lub sij hawm vuam txheej txheem, yog li kev tiv thaiv rau intergranular corrosion nyob rau hauv tshav kub-cuam tshuam cheeb tsam ntawm lub welded sib koom ua ke tuaj yeem tswj tau. UNS N10276 yog wrought nickel-chromium-molybdenum cov ntaub ntawv uas txo cov kev ntxhov siab thaum vuam vim nws cov pa roj carbon tsawg heev thiab silicon cov ntsiab lus. Zoo li lwm cov nickel alloys, nws yog ductile, yooj yim rau kev tsim thiab weld, thiab muaj kev tiv thaiv zoo rau kev ntxhov siab corrosion cracking nyob rau hauv cov tshuaj chloride-muaj cov ntsiab lus (austenitic stainless hlau yog feem ntau degradation). High nyob rau hauv chromium thiab molybdenum, nws yog resistant rau oxidizing thiab tsis-oxidizing acids thiab muaj zoo heev kuj rau pitting thiab crevice corrosion nyob rau hauv lub xub ntiag ntawm chlorides thiab lwm yam halides. Tsis tas li ntawd, nws muaj peev xwm tiv taus sulfide kev nyuaj siab tawg thiab kev ntxhov siab corrosion tawg nyob rau hauv qaub oilfield ib puag ncig.
2 daim ntawv thov
UNS N10276 yog siv rau hauv kev ua tshuaj lom neeg, kev tswj kev ua qias tuaj, cov ntaub so ntswg thiab ntawv, kev lag luam thiab hauv nroog pov tseg kev kho mob, thiab rov qab los ntawm cov roj ntsha qaub.
Cov ntawv thov hauv kev tswj huab cua muaj xws li chimney liners, ducts, dampers, scrubbers, flue gas reheaters, kiv cua thiab kiv cua.
Hauv kev ua tshuaj lom neeg, cov alloys yog siv rau hauv cov khoom xws li cov khoom siv hluav taws xob sib hloov, cov hlab ntsha, cov evaporators, hloov cov raj thiab kab.
3 khoom
Phaj, ntawv, sawb, billet, round bar, tiaj bar, hexagonal bar, hlau, raj, forging, forged billet thiab cladding electrode.
Tshwj tsis yog hais tias lwm yam, cov khoom siv yog nyob rau hauv annealed mob.
4 cov khoom xyaw
| Fe | Ni | Co | Cr | V | Mo | Cu |
| 4.0-7.0 | Bal. | Tsawg dua lossis sib npaug li 2.50 | 14.5-16.5 | Tsawg dua lossis sib npaug rau 0.35 | 15.0-17.0 | Tsawg dua lossis sib npaug rau 0.50 |
| C | W | Mn | Si | P | S | |
| Tsawg dua lossis sib npaug rau 0.01 | 3.0-4.5 | Tsawg dua los yog sib npaug rau 1.00 | Tsawg dua lossis sib npaug rau 0.08 | Tsawg dua lossis sib npaug rau 0.040 | Tsawg dua lossis sib npaug rau 0.030 |
5 lub cev muaj zog
Qhov ceev: 8.89g / cm3
Melting point: 1325-1370 degree
6 Corrosion kuj
C276 alloy tuaj yeem tiv taus kev xeb dav dav, kev ntxhov siab corrosion tawg, pitting corrosion thiab crevice corrosion nyob rau hauv ntau qhov chaw hnyav. Thaum lub sij hawm vuam txheej txheem, nws lub peev xwm los tiv thaiv carbide nag lossis daus tuav lub corrosion kuj ntawm tshav kub-cuam tshuam cheeb tsam ntawm lub welded ob leeg.
Nws muaj kev tiv thaiv zoo heev rau sulfuric acid thiab hydrochloric acid. Nws yog resistant rau ntau yam xov xwm loj heev ntsib nyob rau hauv chemical ua, xws li txo thiab oxidizing acids, heev oxidizing, nruab nrab thiab acidic chlorides, hnyav, formic thiab acetic acids, acetic anhydride, ntub chlorine gas, hypochlorous acid thiab chlorine daws. Nws muaj kev tiv thaiv zoo rau phosphoric acid. Cov kev ntsuam xyuas pom tias qhov corrosion ntawm tsawg dua 5 mpy (0.13 mm / y) ntawm txhua qhov kub thiab txias hauv qab qhov kub thiab txias hauv qab 65% wt%. C276 alloy muaj cov dej hiav txwv zoo corrosion, tshwj xeeb tshaj yog nyob rau hauv cov kab mob tawg, nws yuav corrode lwm yam khoom siv xws li 316 stainless hlau, Monel 400, thiab Inconel 625.
7 Kev kho cua sov
Thermoforming yuav tsum nyob nruab nrab ntawm {{0}}℉({1}} degree) thiab tag nrho cov dej num hnyav yuav tsum siab tshaj 2000℉(1090 degree ). Alloy C276 feem ntau yog annealed ntawm 2050-2150℉ (1121-1175 degree ) thiab sai txias los ntawm dej quenching, thiab lwm yam. Tshwj tsis yog hais tias muaj lwm yam, wrought khoom ntawm C276 alloy yog muab nyob rau hauv zeb annealed (MA) mob. Cov txheej txheem annealing no tau tsim los txhim kho corrosion kuj thiab ductility ntawm cov hlau. Tom qab tag nrho cov thermoforming ua haujlwm, cov khoom siv yuav tsum tau rov ua dua kom rov qab tau cov khoom. Cov hlau tseem yuav tsum tau rov ua dua tom qab cov txheej txheem txias uas ua rau sab nrauv fiber ntau elongation ntawm 7% lossis ntau dua. Qhov ntsuas kub yog 1121 degree (2050 degree F), thiab dej quenching yog pom zoo (ceev cua txias yog ua tau thaum cov qauv thickness tsawg dua 10 hli (0.375 nti)). Pom zoo tuav lub sij hawm ntawm annealing kub yog 10 - 30 feeb, nyob ntawm thickness ntawm cov qauv (cov qauv tuab yuav tsum tau 30 feeb).
8 kev ua haujlwm
C276 alloy tuaj yeem ua tau kub forged, kub dov, kub nias, kub extruded, thiab kub tsim. Txawm li cas los xij, piv nrog austenitic stainless hlau, nws yog rhiab heev rau strain thiab strain rate thiab muaj qhov nqaim thermal ua haujlwm kub ntau. Piv txwv li, qhov pom zoo pib forging kub rau kub forging yog 1232 degree (2250℉), thiab qhov pom zoo kawg forging kub yog 954 degree (1750℉). Qhov nruab nrab ntawm deformation thiab cua sov tsis tu ncua tuaj yeem muab cov txiaj ntsig zoo. Cov hlau no yog ib qho nyuaj tshaj li feem ntau austenitic stainless hlau thiab yuav tsum muaj zog ntau dua thaum lub caij txias txias. Tsis tas li ntawd, C276 alloy hardens yooj yim dua li feem ntau austenitic stainless hlau thiab tej zaum yuav xav tau ntau qhov kev ua haujlwm txias thiab nruab nrab annealing. Thaum ua haujlwm txias feem ntau tsis cuam tshuam rau kev tiv thaiv corrosion, nrog rau pitting thiab crevice nres tshwm sim los ntawm chlorides, nws tuaj yeem cuam tshuam rau kev ntxhov siab corrosion cracking. Yog li ntawd, txhawm rau kom tau txais cov khoom zoo dua corrosion, rov ua dua ntawm qhov chaw ua haujlwm txias (thaum lub fiber ntau elongation nce mus txog 7% lossis ntau dua) yog qhov tseem ceeb.
9 vuam
Alloy C276 yog zoo haum rau roj arc vuam (GMAW), roj tungsten arc vuam (GTAW) thiab shielded hlau arc vuam (SMAWk). Muab cov hlau sib txuam (piv txwv li cov xov hlau thiab cov coated electrodes) muaj rau cov txheej txheem no. C276 alloy muaj qhov zoo weldability thiab tuaj yeem siv dav hauv vuam. INCO-WELD® vuam muab tub lim hlau thiab electrode 686CPT yog qhov zoo dua qhov yuav tsum tau txhim kho corrosion kuj ntawm C-276 alloy.
10 Txuj Specifications
ASME SB366 / ASTM B366 Khoom siv
ASME SB462 / ASTM B462 Bars, tuav, forging blanks
ASME SB472 / ASTMB472 Nickel alloy billets thiab tuav rau forging
ASME SB564 / ASTM B564 Nickel Alloy Forging
ASME SB574 / ASTMB574 Tsawg carbon nickel alloy rods
ASME SB575 / ASTMB575 Tsawg carbon nickel alloy daim hlau, nplooj ntawv thiab strips
ASME SB622 / ASTM B622 Nickel thiab nickel-cobalt alloy seamless kav
ASME SB 829 / ASTM B829 Seamless yeeb nkab
ASME SB983 / ASTM B983 Precipitation hardened los yog txias ua haujlwm seamless nickel alloy yeeb nkab
AWS A5.11,ENiCrMo-4 welding rod
