0.01mm 0.02mm 0.03mm Nichrome Alloy 80/20 / MWS-650 Strip / Foil Used For High-Precision Resistors
0.01mm 0.02mm 0.03mm Nichrome Alloy 80/20 / MWS-650 Strip / Foil Used For High-Precision Resistors
The alloy 80/20 is mainly composed of elements such as nickel (Ni), chromium (Cr), copper (Cu), manganese (Mn), etc., with nickel content of about 80% and chromium content of about 20%. Its resistivity is stable and changes very little in high and low temperature environments, making it suitable for electronic devices that work for a long time.
Nickel-chromium alloy with high and stable resistance, corrosion resistance, surface oxidation resistance, excellent coil- forming ability.it is an ideal material,it has good ductility,workability and weldability under high temperature and seismic strength.
Common Names : Ni80Cr20,Nikrothal 8,MWS-650,NiCrA,Tophet A,HAI-NiCr 80,Chromel A,Alloy A,Alloy 650,N8,Resistohm 80, Stablohm 650,Nichorme V,Nikrothal 80.
Improved nichrome alloy grades: Karma, Evanohm,
NiCr series: Karma, Evanohm, Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30.
1. Size dimension range:
- Foil: Tailor-made 0.005mm or more
- Round Wire: 0.01-10mm
- Ribbons/flat wire : 0.05*0.2-2.0*6.0mm
- Strip: 0.05*5.0-5.0*250mm
- Bar:10-50mm
Key Features of nichrome products:
- Nichrome 80 is a proven electrical resistance heating material
- Produces adherent chromium oxide layer to prevent oxidation
- Highly durable and corrosion resistant
- Ideal for use in frequent temperature switching application
Propertes/Grade |
Karma |
NiCr 80/20 |
NiCr 70/30 |
NiCr 60/15 |
NiCr 35/20 |
NiCr 30/20 |
|
Main Chemical Composition(%) |
Ni |
Bal. |
Bal. |
Bal. |
55.0-61.0 |
34.0-37.0 |
30.0-34.0 |
Cr |
19~21.5 | 20.0-23.0 |
28.0-31.0 |
15.0-18.0 |
18.0-21.0 |
18.0-21.0 |
|
Fe |
2~3 | ≤ 1.0 |
≤ 1.0 |
Bal. |
Bal. |
Bal. |
|
| Al | 2.7~3.2 | ||||||
| Mn | 0.5~1.5 | ||||||
Max Working Temperature(ºC) |
300 | 1200 |
1250 |
1150 |
1100 |
1100 |
|
Resistivity at 20ºC (μ Ω · m) |
1.33 | 1.09 |
1.18 |
1.12 |
1.04 |
1.04 |
|
Density(g/cm3) |
8.1 | 8.4 |
8.1 |
8.2 |
7.9 |
7.9 |
|
Thermal Conductivity (KJ/m· h· ºC) |
46 | 60.3 |
45.2 |
45.2 |
43.8 |
43.8 |
|
Coefficient of Thermal Expansion(α × 10-6/ºC) |
- | 18 |
17 |
17 |
19 |
19 |
|
Melting Point(ºC) |
1400 | 1400 |
1380 |
1390 |
1390 |
1390 |
|
Elongation(%) |
10~20 | > 20 |
> 20 |
> 20 |
> 20 |
> 20 |
|
Micrographic Structure |
austenite | austenite |
austenite |
austenite |
austenite |
austenite |
|
Magnetic Property |
Non | nonmagnetic |
nonmagnetic |
nonmagnetic |
nonmagnetic |
nonmagnetic |
|
2. Advantages & services
- ROHS cerfication;
- Small orders are accepted;
- Factory direct sale;
- Timely delivery;
- Samples are available;
3 Features
- Good oxidation resistance;
- Low embrittlement at high temperature;
- Good plasticity(easier to give them a shape);
- Nice performance and processing;
4 Applications scenarios
- Electronic components: used for manufacturing precision resistors, potentiometers, and other components due to their low temperature coefficient of resistance and stable mechanical properties.
- Electric heating equipment: As a heating element or high-temperature resistance wire, it is commonly used in electric heating alloys, electric blankets, etc.
- Industrial sector: Partial replacement of stainless steel materials for manufacturing corrosion-resistant components.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.