C70400 yog tooj liab-nickel-silicon alloy uas muaj li ntawm 1.1% nickel, 1.0% silicon, thiab 0.5% manganese. Nws kuj suav nrog ib qho me me ntawm cov hlau, zinc, thiab tooj liab, uas muab cov khoom ntxiv rau cov khoom siv. Ua ke cov ntsiab lus no muab cov alloy superior mechanical thiab lub cev zog.
| Element | Cov ntsiab lus (%) |
|---|---|
| Cu | 92.4 |
| Fe | 1.5 |
| Ni | 5.5 |
| Mn | 0.6 |
UNS C70400 Mechanical Properties
C70400 muaj cov khoom siv zoo heev, xws li lub zog siab, hnav tsis kam, thiab qaug zog. Raws li ASTM B171 tus qauv, lub zog tensile ntawm UNS C70400 yog nyob ib ncig ntawm 885 MPa, thiab lub zog tawm los yog li 415 MPa. Tsis tas li ntawd, nws muaj qhov tshwj xeeb elongation thiab hardness, ua rau nws zoo tagnrho rau kev siv zog siab.
| Cov khoom | Metric | Imperial |
|---|---|---|
| Lub zog tensile | 262-531 MPa | 38000-77000 psi |
| Yield zog (nyob ntawm temper) | 276-524 MPa | 40000-76000 psi |
| Elongation ntawm tawg (hauv 50.8 hli) | 46% | 46% |
| Elastic modulus | 117 GPa | 17 000 ksg |
| Poisson tus ratio | 0.34 | 0.34 |
| Machinability (UNS C36000 (dawb-txiav tooj dag)=100) | 20 | 20 |
| Shear modulus | 44 0 GPa | 6380 ua |
UNS C70400 Lub cev muaj zog
C70400 muaj qhov zoo thermal thiab hluav taws xob conductivity, siab melting point, thiab qis thermal expansion coefficient. Cov alloy muaj qhov ceev ntawm ib ncig ntawm 8.74 g / cm³, nrog lub peev xwm kub ntawm 377 J / kg·K. Tsis tas li ntawd, nws muaj thermal conductivity ntawm 43 W / m·K thiab hluav taws xob conductivity ntawm 7.5 × 10⁷ S / m.
| Cov khoom | Metric | Imperial |
|---|---|---|
| Qhov ntom | 8.94 g / cm²3 | 0.323 lb/in³ |
UNS C70400 Thermal Properties
| Cov khoom | Metric | Imperial |
|---|---|---|
| Thermal expansion co-efficient (@20-300 degree /68-572 degree F) | 17.5 µm / m | 9.72 µin / hauv degree F |
| Thermal conductivity (@20 ° C / 68 ° F) | 64. 0 W/mK | 444 BTU in/hr.ft². degree F |
UNS C70400 siv
C70400 yog dav siv nyob rau hauv marine, aerospace, thiab automotive industries, exhibiting zoo heev corrosion kuj rau seawater thiab lwm yam hnyav ib puag ncig. Nws kuj yog siv nyob rau hauv kev lag luam tshuaj, raug rau acidic daws. Tsis tas li ntawd, nws yog tsim rau high-pressure gas pipelines, tshav kub exchangers, thiab hluav taws xob connectors.
UNS C70400 Corrosion Resistance
C70400 muaj corrosion kuj zoo heev nyob rau hauv seawater, dej brackish, thiab lwm yam hnyav ib puag ncig. Nws muaj kev tiv thaiv siab rau pitting, crevice, thiab kev ntxhov siab corrosion ua rau nws yog ib qho khoom siv zoo tshaj plaws rau kev siv dej hiav txwv. Nws kuj muaj qhov ua tau zoo rau cov tshuaj chloride-induced kev nyuaj siab corrosion cracking thiab yaig corrosion.
UNS C70400 Kev kho cua sov
C70400 tuaj yeem kho cua sov los txhim kho nws cov khoom siv kho tshuab, xws li lub zog, ductility, thiab toughness. Annealing, tshuaj annealing, thiab kev ntxhov siab yog qee qhov kev kho cua sov siv los txhim kho cov khoom ntawm UNS C70400.
UNS C70400 Machining
C70400 muaj kev ua haujlwm zoo heev vim nws cov kev txiav tsis tshua muaj zog, tsim cov nti zoo, thiab cov cuab yeej siv tsawg. Nws tuaj yeem ua tau yooj yim machined siv cov txheej txheem xws li drilling, tig, milling, thiab sib tsoo.
UNS C70400 Vuam
UNS C70400 tuaj yeem nkag tau yooj yim welded siv ntau yam kev siv vuam, xws li roj tungsten arc vuam, roj hlau arc vuam, thiab vuam tsis kam. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov hlau muab tub lim nrog cov khoom zoo sib xws thiab cov khoom siv rau lub hauv paus hlau kom tsis txhob tawg thiab deformation.
