Copper Alloy 120 | Product Properties, Composition & Machinability

Copper 120, also known as alloy C12000, is a high-purity copper alloy that contains small amounts of phosphorus. The addition of phosphorus enhances the alloy’s mechanical properties and improves its resistance to corrosion, making copper 120 an ideal material for a wide range of demanding applications.

Characteristics

• High electrical conductivity – Copper 120 has approximately 95% of the International Annealed Copper Standard (IACS). This high level of conductivity makes the alloy an excellent choice for applications requiring efficient electrical performance.
• Mechanical Strength – Copper 120 has outstanding resistance to becoming brittle under stress. This characteristic allows the alloy to maintain its structural integrity and performance even in high-stress environments, enhancing its reliability and durability.
• Low residual phosphorus – Copper alloy 120 contains minimal phosphorus, which contributes to its improved mechanical properties without negatively affecting overall performance.
• Excellent workability – With its excellent cold and hot working capabilities, copper 120 can be shaped and formed both at room temperature and elevated temperatures.

Common Applications

The exceptional properties of copper alloy 120 make it widely utilized across various industries. Its superior electrical and thermal conductivity, combined with enhanced strength and durability compared to pure copper, make it a valuable material in numerous applications.

Within the electrical industry, copper 120 is essential for power distribution applications such as bus bars, conductive wires, contacts, switches, and terminals. Its high electrical conductivity and workability ensure reliable performance and efficient operation in electrical systems.

In the architectural industry, copper 120 is utilized for its corrosion resistance, durability, and aesthetic appeal. It is commonly used in building fronts, flashing, gutters, roofing, and spouting where both functional performance and visual appeal are important.

In the automotive sector, the excellent thermal conductivity of copper alloy 120 makes it ideal for components such as gaskets and radiators. These parts benefit from the alloy’s ability to effectively dissipate heat, ensuring reliable performance under high-temperature conditions.