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JSS2: BASIC TECHNOLOGY - 1ST TERM
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Definition of First Aid | Week 17 Topics|1 Quiz
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Rescue Operation | Week 23 Topics|1 Quiz
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Materials & their Common Uses (Wood) | Week 36 Topics|1 Quiz
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Materials & their Common Uses (Metal) | Week 46 Topics|1 Quiz
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Uses of Common Alloys (Brass & Bronze) | Week 5 & 67 Topics|1 Quiz
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Uses of Ceramics and Glass (Contd) | Week 7 & 84 Topics|1 Quiz
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Uses of Plastics | Week 94 Topics|1 Quiz
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Uses of Rubber | Week 103 Topics|1 Quiz
Lesson 5,
Topic 7
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Brass Vs. Bronze
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Topic Content:
- Differences between Brass & Bronze
Brass and Bronze are metal alloys used extensively in everyday life. While brass is an alloy of copper and zinc, bronze is an alloy consisting mainly of copper, usually combined with tin, and other times with some other metals. These two alloys have various uses owing to their properties.
Below are the differences between Brass and Bronze:
Brass Vs. Bronze:
S/N | Brass | Bronze |
1. | • Brass is an alloy of copper and zinc | • Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive. |
2. | • Used for decorations, plumbing, musical instruments, and ammunition. | • Used in boat and ship fittings, propellers, and submerged bearings because of resistance to saltwater corrosionCorrosion is defined as a natural process that causes the transformation of pure metals into undesirable substances when they react with substances like water or air. This reaction causes damage and... More. • Bronze is popularly used in sculptures for its excellent casting qualities. |
3. | • It has a low melting pointThe temperature at which a solid changes its state to liquid at atmospheric pressure is called the melting point of that liquid. The melting point is usually defined as the point... More (900°C); flows when melted. | • Has higher melting point (950°C); flow depends on the amount of tin. |
4. | • The colour of brass is muted yellow, somewhat similar to gold, but duller. | • Bronze is reddish-brown. |
5. | • Brass was first known to exist in about 500 BC. | • Bronze dates to about 3500 BC. |
6. | • Greater malleability. | • Harder, more brittle. |