What materials are included in metallic materials?
Publish Time:
2025-01-23
Pure metals refer to metallic elements that have not been alloyed. Common pure metals include iron, copper, aluminum, gold, and silver. These metals have different physical and chemical properties. For example, iron is the world's highest-yield metal; copper has good conductivity; and gold, due to its rarity and stability, is widely used in jewelry making.
Metallic materials are mainly divided into two categories: pure metals and alloys.
Pure Metals
Pure metals refer to metallic elements that have not been alloyed. Common pure metals include iron, copper, aluminum, gold, and silver. These metals have different physical and chemical properties. For example, iron is the world's highest-yielding metal; copper has good conductivity; and gold, due to its rarity and stability, is widely used in jewelry making.
Alloys
An alloy is a substance with metallic properties that is formed by the fusion of two or more metals (or metals and non-metals). Alloys generally have higher hardness, better corrosion resistance, and lower melting points than pure metals. Common alloys include steel (mainly composed of iron and carbon), brass (copper-zinc alloy), bronze (copper-tin alloy), and aluminum alloys (alloys of aluminum and other metals). Due to their excellent mechanical and processing properties, alloys are widely used in construction, transportation, electronics, and machinery.
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