Cu-Ni alloys

Cu-Ni alloys are alloys of copper as base metal and amount of nickel and other elements to achieve the specified properties. This alloys mostly used in the application with max. Operating temperature up to 500°C. Due to its low temperature co-efficient performance of this alloys with multiple applications are regardless.

We developed following grades of low resistant alloy.

Identification symbol Din 17471	Electric resistivity in the µΩ­-cm						Thermal coefficient of electrical resistance between 20 and 105 °C 10-6/ K	Upper application Limits in air ° C
	20°C	100°C	200°C	300°C	400°C	500°C
CuNi 2	5.1	5.7	6.4				1000 to 1600	300
CuNi 6	10.1	10.7	11.4	12.3			500 to 300	300
CuNi 10	15.1	15.6	16.2	16.9	17.5		350 to 450	400
CuNi 23	30.2	30.8	31.5	32.2	33.1	33.9	220 to 280	500
CuNi 30	40.2	40.4	41	41.7	42.4	43.2	80 to 130	500

 

Its widely used in multiple industries due to specific resistivity, High specific resistance, good mechanical properties, resistance to corrosion, low temperature co-efficient and many special properties. Specially in winding heavy-duty industrial rheostats and electric motor starter resistance. Low temperature resistance heating applications, such as heating cables, heating wires.

We provide from Ø 0.18 mm to Ø 8 mm in form of wire and rod  Surface finish - Acid wash, oxidized and luster bright with wide verity  of packaging.