0.3mm Copper Wire 29 AWG (99.9% Copper – Cu)


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0.3mm Copper Wire

The Crazy Wire Company are best know as suppliers of top-quality bare 0.3mm copper wire in many thicknesses. We have enormous stock levels at all times, as we use this wire to weave our woven mesh products.

A 0.3mm copper wire refers to a wire made of copper that has a diameter of 0.3 millimetres. Copper is an excellent conductor of electricity and heat, and is commonly used for electrical wiring due to its high conductivity, ductility, and resistance to corrosion. The thin size of the 0.3mm copper wire makes it suitable for applications such as wiring in small electronic devices and precision equipment. However, it may not be suitable for high power applications due to its limited current carrying capacity.

Key product details:

  • 99.9% Copper with the 0.01% being made up of trace elements.
  • Assay – =99.9%
  • Form – wire
  • Resistivity – 1.673 µO-cm, 20°C
  • Diam. – Various
  • bp – 2567 °C(lit.)
  • mp – 1083.4 °C(lit.)
  • Density – 8.94 g/mL at 25 °C(lit.)

Other Available Copper Options

Why Use The Crazy Wire Company

  1. Quality of products: The Crazy Wire Company always  offer high-quality products that meet industry standards and customer expectations.
  2. Selection: We offer a wide variety of wire products and sizes to meet the diverse needs of our customers. We have more than 600 products available through our site and counting. 
  3. Price: We always offer the best value possible. Our wires are available as part of our major weaving processes, so it is bought at the best possible rate. 
  4. Availability: Our products are kept in house and are ready to ship immediately. 
  5. Customer service: Our experienced staff help our customers feel confident in their purchases and provide assistance when required. 

What Else Is Available?

We do not only offer copper round wire. We also have a huge range of KA1 and stainless steel round wire in stock at all times.

Ribbon wire and flat wire are stocked for immediate dispatch too.


FAQs About Copper Wire

Copper Soft Wire

0.3mm copper wire can be considered as a soft wire. Soft wire refers to a type of wire that is flexible and easy to bend. It is typically made of a softer metal, such as copper or aluminium, which allows it to be shaped and bent without breaking or cracking. Soft wire is commonly used in electrical wiring, as it can be bent and twisted to fit into tight spaces or around obstacles. It is also used in jewellery making, where it is shaped and manipulated to create intricate designs. In addition to that, it also used in construction industry to tie or fix something temporarily.

Copper is a relatively soft metal that is easy to bend and shape, making it suitable for a wide range of applications. The thin gauge of 0.3mm also makes the wire more flexible and easy to bend, which is why it is a popular choice for applications where the wire needs to be shaped or twisted to fit into tight spaces or around obstacles. Some examples of applications for 0.3mm copper wire include electrical wiring, jewellery making, and craft projects.

What Can Copper Soft Wire Be Used For?

Copper soft wire is a versatile and flexible material that is used in a variety of applications. Some common uses include:

  1. Electrical wiring: Copper soft wire is often used in electrical wiring because of its excellent conductivity and flexibility. It can be easily bent and shaped to fit into tight spaces or around obstacles, making it ideal for use in both residential and commercial electrical systems.
  2. Jewellery making: Copper soft wire is also commonly used in jewellery making because it is easy to shape and manipulate. It can be bent, twisted, and formed into intricate designs, making it a popular choice for creating unique and personal jewellery.
  3. Craft projects: Copper soft wire is also a popular choice for craft projects, such as making wire sculptures, baskets, and other decorative items. Its flexibility and malleability make it easy to work with and can be used to create a wide range of designs.
  4. Construction industry: Copper wire can be used in construction industry as well, for example to tie or fix something temporarily, like a scaffolding.
  5. Art: Soft copper wire is widely used as a medium by artists to create sculptures, installations, and other forms of art.
  6. Medical: Copper wire is widely used in the production of surgical instruments, needles and dental equipment.

Due to its excellent conductivity, corrosion resistance, and flexibility, copper soft wire is a versatile and useful material that can be used in a wide range of applications.

Is Bare Copper Wire Pure Copper?

Yes, bare copper wire is usually made of pure copper. Bare copper wire refers to wire that is uninsulated and has no protective coating or other substances applied to it. The wire is often referred to as “bare” because it is stripped of any insulation or other materials.

Pure copper is a soft and ductile metal that is highly conductive and has good resistance to corrosion, making it a popular choice for electrical wiring. In electrical wiring applications, pure copper is often preferred over other materials because of its low resistance to the flow of electric current.

It is important to note that bare copper wire may contain small amounts of other metals or impurities, as pure copper is not usually found in its pure form in nature. However, the majority of the wire is still made up of pure copper, and its conductive properties are not significantly impacted by these impurities.

What Can I Use To Cover A Copper Wire?

There are several options for covering or insulating a copper wire, depending on the intended use and desired properties of the insulation. Some common options include:

  1. Plastic Insulation: Plastic insulation is a common choice for covering copper wire due to its low cost and ease of use. PVC (polyvinyl chloride), polyethylene, and Teflon are some of the most common types of plastic insulation used for copper wire.
  2. Rubber Insulation: Rubber insulation is another option for covering copper wire, and it is often used in applications where high flexibility is required. Rubber insulation can also provide good protection against heat, moisture, and abrasion.
  3. Fiberglass Insulation: Fiberglass insulation is a high-temperature resistant material that is often used in applications where high temperatures are expected. It is also a good choice for applications where flame resistance is a concern.
  4. Metal Cladding: Metal cladding, such as aluminum or stainless steel, can also be used to cover copper wire. This type of insulation is often used in high-temperature or high-voltage applications.
  5. Braided Sleaving: Braided sleaving, made of nylon or other synthetic materials, can be used to provide a protective covering for copper wire. Braided sleaving is flexible and provides a good level of abrasion resistance.



Check out our blog ‘what you need to know about: pure copper wire’  for more information on copper wire in general. Our goal for our blogs and help guides is to answer as many questions as possible to help to explain the possibilities of mesh to our customers. 

We also offer similar products through our highly popular eBay store, check us out there too.

Contact our team today if you have any questions at all. We are always really keen to help in any way that we can. 

Additional information


25 Metres (82.5 Feet), 50 Metres (166.66 Feet), 100 Metres (330 Feet), 200 Metres (660 Feet)


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