Nickel chrome alloy waya Ni70Cr30
Nickel chrome alloy wayaNi70Cr30
Cr30Ni70 Nichrome Alloy Eletrothermal Coil Strip, Sable Resistance For Heating Element,
NiCr70/30
Nickel chromium alloy yokhala ndi iron resistance electrothermal high resistivity, thupi lapamwamba kugonana bwino. Pa kutentha kwakukulu komanso kutentha kwakukulu,
ndi ntchito yabwino ndi processing mwina kuwotcherera chikhalidwe chimagwiritsidwa ntchito zitsulo, magetsi, makina zigawo zikuluzikulu ndi magetsi
mafakitale opangira zinthu zolimbana ndi kutentha.
Mtundu wa NiCr:Cr20Ni80,Cr15Ni60, Cr20Ni35, Cr20Ni30, Cr25Ni20 etc.Series lamba lamba lamagetsi, waya wamoto wamagetsi.
3. Kukula kwachinthu:
makulidwe: 0.02--4.0mm
M'lifupi: 2.5-250mm
Mtundu: GB1234-95
Yowala komanso Yosalala pamwamba
Ni70Cr30
Zinthu za Chemical,%
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Zina |
| Max | |||||||||
| 0.08 | 0.02 | 0.015 | 0.60 | 0.75-1.60 | 28.0-31.0 | Bali. | Kuchuluka kwa 0.50 | Zokwanira 1.0 | - |
Mechanical Properties
| Kutentha Kwambiri kwa Utumiki: Kusasinthika ( 20ºC)/Ω·m::Kuchulukana: Thermal Conductivity: Coefficient of Thermal Expansion: Melting Point: Elongation: Kapangidwe ka Micrographic: Katundu Wamaginito: | 1250ºC 1.18 +/-0.05 (Diya: <0.5mm) 1.20+/-0.05 (Dia: ≥0.50 mm) 8.1g/cm3 45.2 KJ/m·h·ºC 17×10-6/ºC (20ºC~1000ºC) 1380ºC Zochepera 20% Austenite zopanda maginito |
| Mtundu | Mtengo wa Cr20Ni80 | Mtengo wa Cr15Ni60 | Mtengo wa Cr30Ni70 | Mtengo wa Cr20Ni35 | Cr20Ni30 | |
| Main mankhwala zikuchokera | Ni | Mpumulo | 55.0 ~ 61.0 | Mpumulo | 34.0-37.0 | 30.0-34.0 |
| Cr | 20.0-23.0 | 15.0-18.0 | 28.0-31.0 | 18.0-21.0 | 18.0-21.0 | |
| Fe | ≤1 | Mpumulo | ≤1 | Mpumulo | Mpumulo | |
| Kutentha Kwambiri(ºC) | 1200 | 1150 | 1250 | 1100 | 1100 | |
| Resistance Temperature correction coefficient.(CT) | 1.09±0.05 | 1.11±0.05 | 1.18±0.05 | 1.04±0.05 | 1.06±0.05 | |
| Malo osungunuka (ºC) | 1400 | 1390 | 1380 | 1390 | 1390 | |
| Kukanizaρ20ºC(10-6Ω.m) | 800ºC | 1.008 | 1.078 | 1.028 | 1.188 | 1.173 |
| 1000ºC | 1.014 | 1.095 | 1.033 | 1.219 | 1.201 | |
| 1200ºC | 1.025 | 1.043 | ||||
| Mtengo wa moyo wofulumira | Nthawi.(ºC) | 1175 | 1100 | 1200 | 1050 | 1050 |
| ola (h) | ≥110 | ≥100 | ≥110 | ≥100 | ≥100 | |
| Kukoka kwapadera (g/cm3) | 8.40 | 8.2 | 8.1 | 7.90 | 7.90 | |
| Kutalikira (%) | ≥25 | ≥25 | ≥20 | ≥20 | ≥20 | |
| Kutentha (kj/mhºC) | 60.3 | 45.2 | 45.2 | 43.8 | 43.8 | |
| Kutentha kwina(20ºC)j/g.ºC | 0.440 | 0.494 | 0.461 | 0.500 | 0.500 | |
| Wonjezerani mphamvu (20 ~ 1000ºC) α * 10-6ºC | 18.0 | 17.0 | 17.1 | 19.0 | 19.0 | |
| Kulimba kwamphamvu (kg/mm2) | > 85 | > 85 | > 85 | > 85 | > 85 | |
| Kupinda mobwerezabwereza (F/R) | > 12 | > 12 | > 12 | > 12 | > 12 | |
| Microstructure | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | |
