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High Resistance Alloy
Iron Chrome Aluminium(Fe-Cr-Al)
Low Resistance Alloy
Ualloy25(Resistance heating wire and resistance wire)
(Common Name:CuNi19,NC25)
Ualloy25 is a copper-nickel alloy (Cu81Ni19 alloy) with low resistivity for use at temperatures up to 300°C.
Ualloy25 is kind of low resistance heating alloy.It is one of the key materials of the low-voltage electrical products. It is widely used in low-voltage circuit breaker, electric blankets.thermal overload relay, and other low-voltage electrical product.
Ualloy25 is typically used for low-temperature applications such as heating cables.
Nickel |
19 |
Manganese |
0.5 |
Copper |
Bal. |
|
|
Yield strength |
Tensile Strength |
Elongation |
Mpa |
Mpa |
% |
155 |
340 |
25 |
Density (g/cm3) |
8.9 |
Electrical resistivity at 20℃ (Ωmm2/m) |
0.25 |
Temperature factor of resistivity(20℃~600℃)X10-5/℃ |
<25 |
Conductivity coefficient at 20℃ (WmK) |
38 |
EMF vs Cu(μV/℃ )(0~100℃ ) |
-32 |
Coefficient of thermal expansion | |
Temperature |
Thermal Expansion x10-6/K |
20 ℃- 400℃ |
17.5 |
Specific heat capacity | |
Temperature |
20℃ |
J/gK |
0.380 |
Melting point (℃) |
1135 |
Max continuous operating temperature in air (℃) |
300 |
Magnetic properties |
non-magnetic |
Corrosion resistance performance
Alloys |
Working In atmosphere at 20℃ |
Working at max temperature 200℃ |
|||||
Air and oxygen contain |
gases with Nitrogen |
gases with sulfur |
gases with sulfur |
carburization | |||
Ualloy25 |
good |
general |
general |
general |
bad |
good |
Style of supply
Alloys Name |
Type |
Dimension |
||
Ualloy25W |
Wire |
D=0.06mm~8mm |
||
Ualloy25R |
Ribbon |
W=0.4~40 |
T=0.05~2.9mm | |
Ualloy25S |
Strip |
W=8~200mm |
T=0.1~3.0 | |
Ualloy25F |
Foil |
W=6~120mm |
T=0.005~0.1 | |
Ualloy25B |
Bar |
Dia=8~100mm |
L=50~1000 |
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