Difference Between Bare Copper Wires and Bunched Wires

As you must already be aware of, bare copper wires can be molded into various sophisticated versions to aid electrical and electronic industries. Not to undermine the fact, these wires are also used at coveted aero-space industries. The purity grade of copper wires to assemble various parts while designing aero planes, aircrafts or helicopters is 99.90%. These copper wires are also known as bunched copper wires.

Bunched wires are also used at the dynamic software industry. These wires are used to configure modern day’s gadgets and secure models that facilitate data encryptions. Data confidentiality is made possible by constructing interfaces that have privy walls or firewalls construed in them. And today, safeguarding one’s valuable information holds more prominence than safeguarding gold, silver or even diamonds. If your goodwill is tarnished, nothing can be done.

Another arena where these wires are used, are at the telecommunication based industries. It is imperative that most of the copper wires are used, while configuring circuit designs. These are configured, designed and installed using a host of contemporary telecommunication networks. This way, the electronic nodes of the circuit make use of wires to enable signal transmission and processing.

Having discussed sensitive areas where copper wires are predominantly used, let us now move on, to understand the core differences between bare copper wires and bunched copper wires.

Here they are, for your reference:

Purity grade

As discussed in the introductory paragraph, the purity grade of bunched copper wires needs to be 99.90%. The highest purity levels are expected of these set of wires, not without a reason. These are wires that are typically installed within aerospace chambers and cockpit machinery. A group of bunched copper wires are also used, to design space shuttles, marine engineering equipment and radio transmission devices.

The super-sophisticated equipment therefore needs to be free from any form of impurities or interferences. This is simply not the case with bare copper wires. Their purity grades differ from one variety to another. Say for instance, an SXL model wires need not have the same grade of copper as an HDT one. The wires with different proportions of copper are molded to make varied forms of electrical apparatuses.

Degree of malleability and ductility

Bunched wires, on account of their highest grade of purity, are less malleable or ductile in nature. The wires are used for the specific purpose, they are meant for. While copper wires for industrial use are alloyed with other metals namely tin, zinc and nickel. This way, the sheets can easily be molded into flat metal plates or thin wires. Alloyed sheets also come to you with enhanced levels of durability, malleability and ductility.


Bunched wires come to you in the form of concentric loops. Solenoid models are also used in order to maintain their electro-magnetic properties. These wires are looped across iron rods or wooden rods, based on the nature of application. These wires also come to you in the form of semi-concentric loops or half-frame arcs.

On the other hand, bare copper wire alloyed with other metals come in any shape, size or design. These are no fixed requirements on sizes or shapes in which they appear. Thin or super-thin wires can also be gauged to fit into smaller motors or areas of application, where space is a major constraint. The physical durability or malleability of copper also improves significantly when it is alloyed with other metals like zinc, chromium or nickel.

Specific uses

Bunched wires on account of highest purity standards suit the more elite form of industries. You discover standard markings and hologram effects etched over insulated sheets. These highlight the diameter and tolerance levels of pure sheaths of copper. Cable memory cards or chip cards are typically made from this variant of copper.

On the other hand, bare copper wires are more suited for general industrial applications like designing circuits, drawing out pipelines and so on.

The overall background of copper wires have been discussed at length. Plus you have a detailed list of differences between bunched wires and the bare ones.

News Reporter

Leave a Reply

Your email address will not be published. Required fields are marked *