What is the difference between aluminum bronze and tin bronze?
1. Difference in composition
Aluminum bronze is composed of copper, aluminum and a small amount of other elements, of which the mass percentage of aluminum is generally between 5% and 11%. Tin bronze is mainly composed of copper and tin, and the mass percentage of tin is between 3% and 20%.
2. Difference in performance characteristics
(1) Strength
Aluminum bronze has higher strength than tin bronze, and has good corrosion resistance, wear resistance and elasticity. Therefore, aluminum bronze is often used in the manufacture of mechanical parts that require high strength and corrosion resistance.
Tin bronze has relatively low strength, but has good corrosion resistance and wear resistance, and is easy to process. Therefore, tin bronze is often used to manufacture parts and decorations.
(2) Electrical conductivity and thermal conductivity
Aluminum bronze has excellent electrical and thermal conductivity because aluminum has higher electrical and thermal conductivity than tin.
Although the electrical and thermal conductivity of tin bronze is not as good as that of aluminum bronze, it is worse than that of ordinary brass.
(3) Welding ability
Aluminum bronze is difficult to weld, but aluminum bronze has good forge ability and is easy to process and shape.
Tin bronze is relatively easy to weld, but thermal cracks are prone to occur during processing, so you need to pay attention.
3. Differences in application fields
Aluminum bronze is mainly suitable for manufacturing corrosion-resistant, high-strength and high-wear-resistant parts, such as ship parts, automobile parts, mechanical parts, etc. Tin bronze is suitable for manufacturing decorations, watch parts, medical equipment, etc.
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