is one of the electronic component materials made of nickel material with a purity of more than 99.6%. It has good corrosion resistance, high-temperature strength, oxidation resistance, and excellent electrical conductivity, so it is widely used in electronic components, electric heating equipment, chemical industry, and other fields. Nickel wire can be processed and manufactured into various shapes according to different application requirements, such as wire, wire, strip, foil, and other shapes. At the same time, pure nickel metal wire can also be used in the field of chemical protection, the most common application is to manufacture the electroplating layer of centralized water supply pipelines to improve its corrosion resistance, wear resistance, and oxidation resistance.

1. Physical properties

Density: The density is about 8.9 g/cm³.
Melting point: The melting point is about 1,455 degree .
Coefficient of Thermal Expansion: Pure nickel wire has a coefficient of thermal expansion of 18.0 x 10-6/ degree , so it expands or contracts as it heats up or cools down.
Resistivity: The resistivity is about 7.8 x 10^-6 Ω·m, which is a good conductive material.

2. Chemical properties

	Ni+Co				C		S	P
N4	99.8	0.015	0.03	0.002	0.01	0.01	0.001	0.001	0.04
N6	99.6	0.10	0.10	0.05	0.10	0.10	0.005	0.002	0.10
Ni201	Greater than or equal to 99.0	Less than or equal to 0.25	Less than or equal to 0.35	Less than or equal to 0.35	Less than or equal to 0.02	/	Less than or equal to 0.01	/	Less than or equal to 0.40
Ni200	Greater than or equal to 99.2	Less than or equal to 0.25	Less than or equal to 0.35	Less than or equal to 0.35	Less than or equal to 0.15	/	Less than or equal to 0.01	/	Less than or equal to 0.40

3. Production Process

Nickel refining: First, nickel is extracted from ore, and the ore is melted under high temperature and high-pressure conditions, and then pure nickel is obtained by electrolysis.

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4. Working Principle

In the resistor, pure nickel metal wire will produce a certain size of resistance, and the magnitude of the current is controlled by the loss of the resistance. The resistance of a pure nickel metal wire is related to its length and cross-sectional area. The stronger the current, the greater the resistance loss, and the nickel wire will generate heat, but it can withstand higher temperatures, so it is suitable for use in high-temperature environments.