0.3mm (29 AWG) NiFe70 Round Wire (70% Ni) Nickel Wire


The NiFe70 round wire, at 0.3mm (29 AWG), is a versatile and durable product made with 70% nickel, offering excellent corrosion resistance and high-temperature stability. Ideal for electrical applications, it is commonly used in resistors, heating elements, and precision components.

✔ Huge Range Available

✔ Produced In Warrington, UK

✔ Shipped Within 24 Hours

✔ 30 Day Returns Accepted

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NiFe70 Round Wire

The Crazy Wire Company are best know as suppliers of top quality NiFe70 round wire. We have enormous stock levels at all times, as we use this wire to weave our top quality 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 NiFe70 round wire, measuring 0.3mm (29 AWG) in diameter, is a highly versatile and efficient product designed to cater to a variety of industrial and technical applications. Nickel makes this wire exceptionally corrosion resistant and resistant to high temperatures, making it an ideal choice for environments that demand durability and longevity. As a result of its significant nickel content, it has superior thermal expansion properties, which allows it to perform at its best under a variety of thermal conditions.

A significant advantage of NiFe70 round wire is its outstanding conductivity, a characteristic essential for electrical applications. Therefore, it is a perfect choice for electrical resistors, heating elements, and precision resistors requiring consistent and reliable performance. Designed for precise applications in intricate designs and small-scale electronic components due to its thin diameter, strength, and flexibility.

Specification of Wire:

  • Diameter – 0.3mm (300 Micron – 29AWG)
  • Ohms/m – 2.286

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 NiFe70 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

Can NiFe70 Round Wire Be Used In High-Temperature Environments?

The NiFe70 round wire is highly suitable for use in high-temperature environments. As a result of its composition of 70% nickel, this material is exceptionally heat-resistant, retaining its structural integrity and performance under extreme temperatures. Its thermo-stability makes it ideal for applications such as heating elements, industrial furnaces, and the aerospace industry, where materials are frequently subjected to high temperatures. Since NiFe70 round wire can withstand high temperatures without degrading, it is reliable and durable under such extreme conditions.

What Is The Shelf Life Of NiFe70 Round Wire?

Under normal storage conditions, NiFe70 round wire, known for its durability and corrosion resistance, usually does not have an expiration date or shelf life. There is a great deal of variation in the longevity of this product depending on the storage environment. A dry, cool place away from direct sunlight and moisture, which could potentially cause oxidation over time, is the best place to store it for the longest shelf life. By storing the wire correctly, you can maintain the integrity of the wire and prevent it from losing its performance characteristics over time. However, if wire is stored for a long period of time, it is always recommended to inspect it regularly for any signs of degradation.


The Crazy Wire Company is a leading UK based supplier of nichromefecral, and stainless steel wires. We specialise in rapid delivery to any location around the country. Our factory is located in Warrington, which is the historic home of the UK’s wire industry.

Check out our blog ‘Everything That You Need To Know About Wire  for more information on resistance 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.

Additional information


10 Metres (33 Feet), 25 Metres (82.5 Feet), 50 Metres (166.66 Feet), 100 Metres (330 Feet), 150 Metres (495 Feet), 200 Metres (660 Feet)


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