In the field of copper material applications, TP1 and TP2 are widely used grades, each with distinct characteristics in terms of performance, composition, and usage. These differences are highlighted in the following aspects:

1. Chemical Composition

• TP1: The copper content is generally above 99.9%, with extremely low residual phosphorus levels, almost negligible. The content of other impurities is also minimal, making it a high-purity phosphorus-deoxidized copper.

• TP2: The copper content is typically above 99.8%. Compared to TP1, TP2 has relatively higher residual phosphorus levels and may also contain small amounts of other elements such as oxygen and sulfur.

2. Physical Properties

• Electrical and Thermal Conductivity: TP1, with its high purity and low impurity content, offers superior electrical and thermal conductivity.

• Strength and Hardness: The additional elements in TP2 enhance its strength and hardness, making it more suitable for applications that require resistance to external forces or wear. TP2 performs better in situations where higher strength or wear resistance is needed.

3. Processing Performance

• Cold Processing: TP1 copper plates have better ductility, making them easier to process into various shapes and sizes during cold working processes such as rolling and drawing, and are less likely to develop defects like cracks.

• Hot Processing: Both TP1 and TP2 exhibit good plasticity during hot processing. However, due to its composition, TP2 may offer slightly better stability at high temperatures, making it more suitable for processes that require working at elevated temperatures.

4. Applications

• TP1: Primarily used in fields that require excellent conductivity, thermal conductivity, and surface quality, such as high-precision electronic devices, chip packaging, and connectors in the electronics industry, as well as wires, cables, and busbars in the electrical industry, ensuring efficient signal and current transmission.

• TP2: Commonly used in applications requiring certain material strength, hardness, and corrosion resistance, such as mechanical components in manufacturing, and building materials for structural and decorative elements in the construction industry, meeting the comprehensive performance needs of these fields.

In conclusion, TP1 and TP2 each have their own advantages. In practical applications, a thorough consideration of specific requirements is necessary to make an accurate choice, ensuring that the copper plates achieve their maximum value.

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