2.5mm 99.99% Aluminum Wire refers to a specific size and purity of aluminum wire commonly used in various electrical and industrial applications.

The "2.5mm" measurement refers to the diameter of the wire and indicates that it is 2.5mm in diameter. This measurement determines the thickness of the wire and is an important factor in determining its current carrying capacity and mechanical strength.

The "99.99%" purity specification indicates that the aluminum wire is very pure, with a purity rating of 99.99%. High purity aluminum is required in applications where conductivity is critical, as impurities can negatively affect conductivity and performance. High purity levels ensure optimal electrical performance and reduce the risk of contamination or oxidation.

Aluminum wire is used in a variety of applications, including wire, power transmission, motor windings and electrical components. It offers several advantages, such as low density (light weight), good electrical conductivity (although lower than copper) and corrosion resistance. These properties make aluminum wire suitable for applications where weight reduction is required or where corrosion resistance is important.


When using aluminum wire, it is important to consider its unique electrical and mechanical properties, as they differ from copper wire. Aluminum wire has a slightly higher resistance than copper wire of the same size, which may affect its current-carrying capacity and voltage drop. Therefore, it is important to follow the relevant codes, standards and guidelines for the use of aluminum wire and consult an electrical engineering professional or expert for a specific application.

Why is alloy wire better than pure aluminum wire?
Alloy wire is often preferred over pure aluminum because it is easier to draw to fine sizes and the finished unit has a higher tensile test strength. The addition of nickel makes aluminum wire corrosion resistant.

What are the uses of aluminum wire?
Aluminum wire is used throughout the electronics industry because of its low cost, its suitability for ultrasonic wedge bonding, and its elimination of the "purple spot" problem associated with gold wire bonded to aluminum contacts.