Categories: Lesson Notes

JSS2 First Term Basic Technology Lesson Note – Uses of Materials – Metals

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WEEK:   SIX                                                                                           

TOPIC: USES OF MATERIALS – METALS

SUB-TOPICS:

  1. Common Uses of Ferrous and Non-Ferrous Metals
  2. Brass
  3. Bronze

Sub-Topic I: Common Uses of Ferrous and Non-Ferrous Metals

Metals could be ferrous when it contains iron and non-ferrous when it does not contain iron. The things that we use that are made of metal or having metal parts in them are pots, radio, television sets, knives and forks, bicycles and motor cars. The uses of some common metals are as follows:

Ferrous Metal Uses
Mild steel General structural work, bolts, nuts, tubes, tin plate and non-cutting tools.
Wrought iron Chairs, crane hooks, haulage gear and boiler plates.
Cast iron Cylinder blocks, piston rings, vice bodies, machine tool beds, marking-out tables and surface plates.
Medium carbon steel Nails, hammers, screws, springs and tensile wires
High carbon steel Pliers, cutting tool, chisels, taps, hacksaw blades punches, knives

Materials made from wrought iron.

Non-ferrous metals Uses
Copper Wires, boxes, electrical points, bowls, water pipes
Lead Battery element, water piping, sheeting for roofing

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