Beryllium copper is a high-performance alloy that mainly consists of copper (Cu) and beryllium (Be). Copper serves as the matrix, while beryllium is the main alloying element. Typical beryllium copper alloys include C17200, where the copper content is usually at a full amount or above, and the beryllium content is between 1.5% and 2.4%. It may also contain trace amounts of cobalt (Co), nickel (Ni), or iron (Fe) to optimize performance. The impurity content is strictly controlled below 0.002% to ensure material purity.

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‌Component and Characteristic Analysis‌

• ‌Beryllium (Be)‌

As the core strengthening element, the addition of beryllium significantly enhances the strength (hardness up to 205HB) and elastic modulus of the alloy, while maintaining excellent electrical conductivity (42% IACS).

• Copper (Cu)‌

‌Copper provides good thermal conductivity, corrosion resistance, and processing performance, serving as the basic carrier of the alloy.

• ‌Trace Elements‌

Elements such as cobalt or nickel can refine the grain structure, improve thermal stability, and are suitable for high-temperature environments.

Industry Standards‌

Beryllium copper must comply with standards such as ASTM B194 and GB/T 5231 to ensure component and performance compliance. High-hardness beryllium copper (designation C17200) has a hardness of 205HB and an electrical conductivity of 42% IACS.

The chemical symbol of beryllium copper is CuBe, and it belongs to one of the copper-based precious metal alloys. Its main components are copper and beryllium, with relatively low contents of other elements. The content of beryllium determines the properties and applications of beryllium copper. The higher the content of beryllium, the harder and more brittle the alloy becomes.

The higher the content of beryllium in beryllium copper alloys, the higher the strength and hardness of the alloys will be. This is because the addition of beryllium can form strengthening phases, refine the crystal grains, and improve the mechanical properties of the alloy. At the same time, the presence of beryllium can also enhance the corrosion resistance of the alloy, allowing it to maintain good performance in harsh environments.