Soldering iron bit is made up of:

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ALP CBT 2 Electrician Previous Paper: Held on 22 Jan 2019 Shift 2
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  1. Tin
  2. Steel
  3. Brass
  4. Copper

Answer (Detailed Solution Below)

Option 4 : Copper
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Soldering is the process by which metallic materials are joined with the help of another liquified metal (solder).

Soldering iron is used to melt the solder and heat the metal that are to be joined together.

A soldering iron has the following parts

  • Head (copper bit)
  • Shank
  • Wooden handle
  • Edge

The head of the iron is made of forged copper. This is because copper has good heat conductivity and has a strong affinity for the solder so that solder melts easily and sticks to the bit.

hatchet type soldering has shank fitted at 90° to the head. The soldering edge is ‘V’ shaped. This type is used for straight soldering joints.

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