China Copper Nickel Alloy CuNi19, Find details about China Copper Nickel Alloy CuNi19, Cuprothal 15 from Copper Nickel Alloy CuNi19
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CuNi19
(Common Name:CuNi19,NC25)
CuNi19 is a copper-nickel alloy (Cu81Ni19 alloy) with low resistivity for use at temperatures up to 300°C.
CuNi19 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.
CuNi19 is typically used for low-temperature applications such as heating cables.
Normal composition%
Nickel | 19 | Manganese | 0.5 |
Copper | Bal. |
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Typical Mechanical properties(1.0mm)
Yield strength | Tensile Strength | Elongation |
Mpa | Mpa | % |
155 | 340 | 25 |
Typical Physical properties
Density (g/cm3) | 8.9 |
Electrical resistivity at 20ºC (ohm*mm2/m) | 0.25 |
Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC | <25 |
Conductivity coefficient at 20ºC (WmK) | 38 |
EMF vs Cu(μV/ºC )(0~100ºC ) | -32 |
Coefficient of thermal expansion | |
Temperature | Thermal Expansion x10-6/K |
20 ºC- 400ºC | 17.5 |
Specific heat capacity | |
Temperature | 20ºC |
J/gK | 0.380 |
Melting point (ºC) | 1135 |
Max continuous operating temperature in air (ºC) | 300 |
Magnetic properties | non-magnetic |
Corrosion resistance performance
Alloys | Working In atmosphere at 20ºC | Working at max temperature 200ºC | |||||
Air and oxygen contain gases | gases with Nitrogen | gases with sulfur oxidability | gases with sulfur reductibility | carburization | |||
CuNi19 | good | general | general | general | bad | good | |
Style of supply
Alloys Name | Type | Dimension | ||
CuNi19W | Wire | D=0.06mm~8mm | ||
CuNi19R | Ribbon | W=0.4~40 | T=0.05~2.9mm | |
CuNi19S | Strip | W=8~200mm | T=0.1~3.0 | |
CuNi19F | Foil | W=6~120mm | T=0.005~0.1 | |
CuNi19B | Bar | Dia=8~100mm | L=50~1000 | |