What kind of material does the tip consist of?

What kind of material does the tip consist of?

The soldering iron tip is mainly composed of four metal materials: copper, iron, nickel, chromium and tin.
Copper - as a heat conductor, is the main component of the tip. About 85% of the tip material, copper has good thermal conductivity, which is good for the tip to heat up quickly. Good soldering iron heads are made of copper, but some manufacturers use brass to reduce the cost and reduce the soldering iron. The thermal conductivity of the head.
Iron – the role of corrosion resistance is a key factor affecting the service life of the tip. The iron structure of the iron tip is fine and dense, and the corrosion resistance is good. The soldering iron has a long service life and good tinning effect. Manufacturers with poor iron plating technology mainly rely on the thickness of the iron plating layer to control the service life of the soldering iron tip. Usually, the iron plating layer is thick and the soldering iron tip is not tinned, and the thinness is not durable.
Nickel - acts as a rust preventive for the iron plating and facilitates chrome plating.
Chromium - non-stick tin, to prevent the tin from running on the body of the tip. Generally, the soldering iron head is chrome-plated for more than 5 minutes, and the ordinary decorative chrome plating is about 1 minute.
Tin - In the head, use the part that is sticky tin.
This is the composition of the tip material, which is indispensable.

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