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What’s the difference between C7521 and C7701?

C7521 and C7701 are both types of copper alloys commonly used in various industries. While they have similar properties, there are some differences between them:

1. Composition: C7521 is a phosphor bronze alloy, mainly composed of copper with a small percentage of tin and phosphorus. On the other hand, C7701 is a nickel silver alloy, consisting of copper, nickel, and zinc.

2. Strength: C7521 phosphor bronze has good mechanical strength and is often used in applications that require high strength and wear resistance. C7701 nickel silver, on the other hand, is known for its excellent corrosion resistance and electrical conductivity.

3. Appearance: C7521 has a golden-brown color, similar to traditional bronze, while C7701 nickel silver has a silver-like appearance due to its high nickel content.

4. Applications: Due to its high strength and wear resistance, C7521 phosphor bronze is commonly used in the manufacture of springs, connectors, bearings, and electrical contacts. C7701 nickel silver, with its excellent electrical conductivity and corrosion resistance, is often used in electrical components, musical instruments (such as brass instruments), and decorative applications.

It’s essential to note that the specific properties and applications of these alloys can vary depending on the manufacturer and any additional alloying elements present. Therefore, it’s always recommended to refer to specific datasheets or consult with experts for precise information regarding their usage.

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