Description

The resistance wire is the core part of the electric heating element, or it will loses the heating function without the resistance wire. Since the resistance wire is so important, so what material and how much wire diameter will be related to the service life of the heater element. Let us check it.

Before ordering heater element, we must know the shape, pipe diameter, size, voltage, power and working environment. The voltage and power are the necessary parameters to determine the diameter.

If you want to know how much wire diameter the resistance wire is used, you need to find the resistance value according to the voltage and work, and the resistance value can be found by using voltage * voltage/power. At this time, the resistance value is established.

We all know that there are two type resistance wires one is the external winding wire, that is, the electric heating wire is wrapped around the magnesium rod. The other is directly made into the spring shape, and then insert it into the heating tube inside.

But no matter what form of the wire, its wire diameter is determined by the resistance value, pipe diameter, length (length of the heating zone).

Therefore, the voltage, power, diameter and length of the heating area jointly determine the thickness of the resistance wire in the electric heating element, and changing any of the conditions can change the thickness of the heating resistance wire.

The mechanical properties of Φ 0.025 mm N4 pure nickel heating wire are close to carbon steel, and its alkaline corrosion resistance is second only to silver in the metal materials.

The surface of Φ 0.025 mm N4 pure nickel heating wire will generate a layer of black protective film in concentrated alkaline. Makes it very corrosion resistant. Used for electric light source materials, coating, with high surface quality, good processing performance, used for making work such as anode, partition, electrode bracket, etc., can also be used as a guide wire in the bulb, in addition to the chlor-alkali industry has played a very important role. Electrical grade materials because of the use of different conditions, and a variety of components of the alloy. Moreover, the electrode materials are required to have low resistivity to avoid overheating of the electrode, high high-temperature strength to reduce material wear, and sticky melting and volatilization to improve service life under the action of arc.

Φ 0.025 mm N4 pure nickel heating wire, also known as no.4 nickel. has good mechanical strength, corrosion resistance and high heat resistance, suitable for making vacuum devices, electronic instrument components, chemical production of strong alkali screen, etc. N4 pure nickel wire is also radio, electric light source, mechanical manufacturing, chemical industry, is an important structural material in vacuum electronic devices.

Data Sheet

chemical composition%
Grade	C	Si	Mn	P	S	Ni+Co	Cu	Fe
Nickel 200	<0.15	<0.35	<0.35		<0.01	>99.0	<0.25	<0.40

Physical properties
Grade	Density	Melting Range (℃)	Curie point	Volume resistivity (μΩ.cm)	Thermal conductivity (W/m. ℃)
	(g/cm3)		(℃)
Nickel 200	8.89	1435-1446	360	8.5(20℃)	79.3(20℃)