0.29mm (29 AWG) Ni80 Resistance Wire Nickel Alloys


The 0.29mm (29 AWG) Ni80 resistance wire is a high-quality product made from durable nickel alloys. Ideal for projects requiring precise resistance measurements, its high resistivity and thermal properties suit electronics and heating elements in both household and industrial appliances. With excellent oxidation resistance at high temperatures, it’s also a popular choice for jewelry-making and specialised electronic circuits. Choose Ni80 for reliability and versatility across various applications.

Please Feel Free To Contact Our Team If You Have Any Questions At All. We Are Always Keen To Help In Any Way We Can.

✔ Huge Range Available

✔ Produced In Warrington, UK

✔ Shipped Within 24 Hours

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Ni80 Nickel Alloys

The Crazy Wire Company are best know as suppliers of top quality Ni80 nickel alloys. We have enormous stock levels at all times, as we use this wire to weave our marine grade woven mesh products. Our brilliant staff are experts in producing our spools of round wire on our 6 rapid action winding machines. All spools are produced to carry a little extra length to make up for any waste when handling the product.

The 0.29mm (29 AWG) Ni80 resistance wire is a product crafted from high-quality nickel alloys, tailored for various applications demanding consistent performance and durability. Ni80 alloy is primarily composed of nickel and incorporates 20% chromium, achieving an optimal balance between resistance and malleability. This type of composition allows for precise control in projects that require precise resistance measurements. Due to its excellent thermal properties, it is suitable for heating elements in a range of household and industrial appliances, due to its high resistivity.

Its superior oxidation resistance means it can be used in environments where other materials would degrade or fail. Often, craft enthusiasts use this wire for intricate jewelry making due to its strength and malleability. Furthermore, it is a popular choice in electronics for crafting specialised circuits and sensors. No matter what application you choose, Ni80 resistance wire offers reliability, versatility, and longevity.

Key product details:

  • Diameter – 0.29mm (290 Micron – 29 AWG) 
  • Ohms/m – 16.50
  • Technical Specification:
  • Ni – Rest
  • Cr – 20.0 – 23.0
  • Fe – <1.0
  • Max Continuous Service Temp Of Element – 1200
  • Micrographic Structure – Austenite
  • Magnetic Properties – Nonmagnetic
  • Electrical resistance is high
  • Corrosion resistance is high

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 Ni80 round wire. We also have a huge range of KA1 and stainless steel round wire in immediate stock too.

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


FAQs About This Wire

Which Gauge Wire For Foam Cutter?

The gauge of wire that is suitable for a foam cutter depends on several factors, such as the type of foam you are cutting, the power of the heating element, and the desired cutting speed.

For most hobby applications, a nichrome wire with a diameter of 32 to 36 gauge is typically used. This type of wire is suitable for cutting thin foam sheets or foam blocks that are used for model-making and crafting projects.

For more heavy-duty foam cutting applications, a thicker wire with a lower gauge number (e.g., 24 to 26 gauge) may be more suitable. Thicker wires are more suitable for high-power foam cutters, as they have a lower resistance and can generate more heat to cut denser and thicker foam materials.#

Why Is Nichrome Wire Used In Electric Heaters?

Nichrome wire is used in electric heaters because of its high resistance to electrical current. When an electric current is passed through a wire, it creates heat due to the resistance of the wire. The heat generated is proportional to the resistance of the wire, so a wire with a high resistance will generate more heat than a wire with a low resistance.

Nichrome is an alloy of nickel and chromium and has a high resistance to electrical current, making it ideal for use in heating elements. It also has a high melting point, which is important for applications where the wire will be exposed to high temperatures. This makes nichrome an ideal choice for use in electric heaters, toasters, and other appliances that generate heat.

Which Wire Has The Most Resistance?

The resistance of a wire depends on several factors, such as the material it is made from, its length, and its cross-sectional area (i.e., its diameter). Generally speaking, some of the materials that are known for having high resistance include:

Nichrome (NiCr)
Constantan (CuNi)
Manganin (MnNiCu)
Tungsten (W)
Of these materials, tungsten is known for having the highest resistance of any pure metal. However, it is also a brittle material that is not suitable for use in heating elements because of its low melting point.

On the other hand, nichrome (NiCr) is a common material that is widely used in heating elements due to its high resistance and high melting point. It is an alloy of nickel and chromium and is known for having a consistent resistance over a wide range of temperatures.

What Is The Difference Between Heating Wire And Fuse Wire?

Heating wire and fuse wire are two different types of wire that serve different purposes.

Heating wire, also known as resistance wire, is a type of wire that is used to generate heat when an electric current is passed through it. This wire is commonly made of materials such as nichrome, which has a high resistance to electrical current, and is used in heating elements, such as electric heaters, toasters, and other household appliances.

Fuse wire, on the other hand, is a type of wire that is used to protect electrical systems from damage caused by overloading or short-circuiting. When a fuse wire is exposed to a current that exceeds its rated capacity, it will melt, breaking the circuit and preventing further damage to the electrical system. Fuse wire is typically made of a low-resistance material, such as tin or lead, and is designed to have a low melting point, so that it will quickly break the circuit in the event of an overload or short-circuit.


Check out our blog ‘what is nichrome‘ for more information on ni80 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


10 Metres (33 Feet), 25 Metres (82.5 Feet), 50 Metres (166.66 Feet), 100 Metres (330 Feet), 200 Metres (660 Feet)


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