Ni70Cr30 / Nickel chrome ntawv / Nickel chrome hmoov / Nichrome hlau
Ni70Cr30 / Nickel chrome ntawv / Nickel chrome hmoov / Nichrome hlau
| Propertes / Qib | NiCr 80/20 | NCV 70/30 | NCV 60/15 | NiCr 35/20 | NiCr 30/20 | |
| Lub ntsiab Chemical Composition (%) | Ni | Bal. | Bal. | 55.0-61.0 Nws | 34.0-37.0 Nws | 30.0-34.0 Nws |
| Cr | 20.0-23.0 Nws | 28.0-31.0 Nws | 15.0-18.0 Nws | 18.0-21.0 Nws | 18.0-21.0 Nws | |
| Fe | ≤ 1.0 | ≤ 1.0 | Bal. | Bal. | Bal. | |
| Max ua haujlwm kub (ºC) | 1200 | 1250 | 1150 | 1100 | 1100 | |
| Resistant ntawm 20ºC (μΩ · m) | 1.09 Nws | 1.18 | 1.12 | 1.04 ib | 1.04 ib | |
| Qhov ceev (g / cm3) | 8.4 ib | 8.1 | 8.2 | 7.9 ib | 7.9 ib | |
| Thermal conductivity (KJ/m· h· ºC) | 60.3 | 45.2 ib | 45.2 ib | 43.8 ib | 43.8 ib | |
| Coefficient ntawm Thermal Expansion (α × 10-6 / ºC) | 18 | 17 | 17 | 19 | 19 | |
| Melting Point (ºC) | 1400 | 1380 | 1390 ib | 1390 ib | 1390 ib | |
| Elongation (%) | > 20 | > 20 | > 20 | > 20 | > 20 | |
| Micrographic Structure | austenite | austenite | austenite | austenite | austenite | |
| Magnetic Property | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | nonmagnetic | |
Product Description
Qib: Ni80Cr20, tseem hu ua MWS-650, NiCrA, Tophet A, HAI-NiCr 80, Chromel A, Alloy A, N8, Resistohm 80, Stablohm 650, Nichorme V, N thiab lwm yam.
Cov ntsiab lus tshuaj (%)
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Lwm yam |
| Max | |||||||||
| 0.03 ib | 0.02 ib | 0.015 ib | 0.60 ib | 0.75-1.60 Nws | 20.0-23.0 Nws | Bal. | Max 0.50 | Max 1.0 | - |
Mechanical Properties ntawm nichrome hlau
| Max Continuous Service Temperature: | 1200ºC |
| Kev kub siab 20ºC: | 1.09 ohm mm2 / m |
| Ceev: | 8.4g 3 |
| Thermal conductivity: | 60.3 KJ/m·h·°C |
| Coefficient ntawm Thermal Expansion: | 18 α × 10-6 / ºC |
| Melting Point: | 1400ºC |
| Elongation: | Tsawg tshaj 20% |
| Micrographic Structure: | Austenite |
| Magnetic Property: | nonmagnetic |
Temperature Factors Ntawm Hluav Taws Xob Resistivity
| 20ºC tso | 100ºC | 200ºC | 300ºC | 400ºC | 500ºC | 600ºC |
| 1 | 1.006 ib | 1.012 ib | 1.018 Nws | 1.025 Nws | 1.026 ib | 1.018 Nws |
| 700ºC | 800ºC | 900 ºC | 1000ºC | 1100ºC | 1200ºC | 1300ºC |
| 1.01 Nws | 1.008 Nws | 1.01 Nws | 1.014 ib | 1.021 ib | 1.025 Nws | - |
Qhov loj me ntawm Nickel alloy hlau:
Peb muab cov khoom nyob rau hauv cov duab ntawm cov hlau, tiaj tus hlau, strip.Peb kuj tuaj yeem ua cov khoom siv raws li cov neeg siv khoom thov.
Kaj thiab dawb hlau-0.025mm ~ 3mm
Pickling hlau: 1.8mm ~ 10mm
Oxidized hlau: 0.6mm ~ 10mm
Flat hlau: thickness 0.05mm ~ 1.0mm, dav 0.5mm ~ 5.0mm
Txheej txheem:
Hlau: Cov khoom npaj → melting → re-melting → forging → kub dov → kho cua sov → kev kho deg → kos duab (dov) → kho cua sov kom tiav → tshuaj xyuas → pob → warehouse
Khoom nta ntawm nichrome hlau:
1) Zoo heev los tiv thaiv oxidation thiab txhua yam muaj zog ntawm qhov kub thiab txias;
2) High resistivity thiab qis kub coefficient ntawm kuj;
3) Zoo heev reelability thiab tsim kev ua tau zoo;
4) Zoo heev vuam kev ua tau zoo
Kev siv txhua qib:
Cr20Ni80: nyob rau hauv braking resistors, industries furnaces, tiaj tus hlau, ironing tshuab, dej rhaub, yas molding tuag, soldering hlau, hlau sheathed tubular ntsiab thiab cartridge ntsiab.
Cr30Ni70: nyob rau hauv industrial furnaces. zoo haum rau txo cov cua, raws li nws tsis raug rau 'ntsuab rot'.
Cr15Ni60: nyob rau hauv braking resistors, industries furnaces, kub daim hlau, grills, toaster cub thiab cia cua sov. Rau cov coils tshem tawm hauv cov cua sov hauv cov khaub ncaws ziab khaub ncaws, kiv cua cua sov, tes tshuab ziab khaub ncaws.
Cr20Ni35: nyob rau hauv braking resistors, industrial furnaces.In hmo ntuj cia tso cua sov, convection heaters, hnyav luag hauj lwm rheostats thiab kiv cua tso cua sov. Rau cua sov cables thiab hlua cua sov hauv defrosting thiab de-icing hais, hluav taws xob pam vov thiab pads, lub rooj zaum tsheb, baseboard heaters thiab floorheater.
Cr20Ni30: nyob rau hauv cov khoom kub kub, qhib coil heaters nyob rau hauv HVAC systems, hmo ntuj-storage heaters, convection heaters, hnyav luag hauj lwm rheostats thiab kiv cua heaters.Rau cov cua sov cables thiab hlua cua sov nyob rau hauv defrosting thiab de-icing ntsiab, hluav taws xob pam thiab pads, tsheb rooj, baseboard heaters.
