0.7mm (21 AWG) Soft Ni200 Round Wire (Tempered 99.6% Nickel)


The ni200 round wire, featuring a 0.7mm diameter and crafted from 99.6% pure, tempered nickel, offers unparalleled reliability across diverse applications. With notable thermal and electrical conductivity, it is prominently utilised in constructing durable heating elements, creating precise temperature control sensors, and ensuring steady electrical pathways in electronics. Benefiting from high resistance to corrosion and ability to withstand elevated temperatures, it finds usage in various industries, from vehicle manufacturing to delicate jewelry creation, offering a blend of strength, malleability, and consistent performance. Its versatile nature caters to necessities ranging from industrial to artistic, embedding itself as a vital component in various products and 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

✔ 30 Day Returns Accepted

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Ni200 Round Wire

The Crazy Wire Company are well known as suppliers of top quality Ni200 round wire. We have enormous stock levels at all times, as we use this wire to weave our high specification 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 ni200 round wire, with a diameter of 0.7mm (21 AWG), is recognised for its dependable and consistent performance in various applications due to its inherent properties and high-quality construction. Due to its impressive thermal and electrical conductivity, this 99.6% pure nickel wire is a favorite among industrial and commercial users. A significant part of its function is its ability to sustain high temperatures without degradation even in corrosive environments. Moreover, the ni200 round wire is useful for producing temperature control sensors, where its predictable resistance changes with temperature. It ensures stable and sustained electrical paths in electronic circuits, coils, and connectors.

Additionally, its robustness makes it ideal for use in the automotive industry, particularly in car manufacturing processes that call for high-quality and durable components. The use of ni200 round wire in robotics ensures precision and efficiency in systems that require electrical and control controls. Whether it’s used to make intricate jewelry, which requires malleability and resistance to tarnishing, or in medicine, nickel wire underpins functionality as well as guarantees longevity and consistent performance across a wide range of industries and applications. Moreover, its soft, tempered nature makes it easy to manipulate, making it versatile in terms of design and functionality.

Key product details:

  • Diameter – 0.7mm (700 Micron – 21 AWG) 
  • Ohms/m – 0.25
  • Technical Specification:
  • Ni+Co – Max 99.6% / Min 99.0%
    Fe – 0.4%
    C – 0.15%
    Mn – 0.35%
    Si – 0.35%
    Cu – 0.25%
    S – 0.01%
  • Density – 8.89 g/cm3
    Melting Point – 1435 – 1446 oC

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?

Not only do we offer Ni200 wire, but we also stock huge levels of Ni60, Ni80 and Ni90.

We also offer stainless steel in ribbon and flat wire options.

The choice is virtually endless!


FAQs About This Wire

Are There Limitations To Using The Ni200 Round Wire In Various Applications?

  • Temperature Limit: Although ni200 round wire is capable of withstanding high temperatures, there is still a finite limit to the heat it can endure before experiencing degradation.
  • Mechanical Strength: Despite being robust, ni200 may not be suitable for applications that require exceptionally high mechanical strength, especially in comparison to certain other metal alloys.
  • Electromagnetic Interference: ni200 round wire, being a conductor, might be susceptible to or cause electromagnetic interference in certain applications.
  • Cost Factor: Depending on the application and available alternatives, the cost of ni200 might be a limiting factor for some projects or productions.
  • Chemical Reactivity: While it is corrosion-resistant, in specific chemical environments, particularly those involving highly reactive substances, ni200 might not be the optimal choice.
  • Biocompatibility: For certain medical applications, its biocompatibility may need to be thoroughly assessed, ensuring it doesn’t provoke undesired reactions in biological environments.
  • Workability: In some manufacturing processes, the workability of ni200, in terms of forming and machining, might present limitations compared to other materials.
  • Weldability: While ni200 can be welded, specific methods and care are required to maintain its properties and avoid introducing defects.
  • Scalability: For large-scale applications, ensuring consistent quality and properties across massive quantities of ni200 round wire might present challenges.

Can The Ni200 Round Wire Be Utilised In Temperature Sensors?

Definitely, the ni200 round wire is frequently employed in the construction of temperature sensors due to its outstanding thermal properties. Due to its high temperature stability and predictable resistance change with temperature fluctuations, it is a highly preferred choice for precision and reliable temperature measurement devices. By converting temperature-induced resistance variations into corresponding electrical signals, which can then be converted into temperature readings, the wire can be configured into a coil or other configurations within a sensor, ensuring consistent readings. A temperature sensing device with such properties not only enhances accuracy, but also provides a robust and reliable solution in a wide variety of environments, ranging from industrial processes that require strict temperature control to scientific research applications that require high precision. Ni200 round wire serves as an essential part of temperature sensors across diverse applications and industries, ensuring reliability and operational integrity.

In Which Industries Is Ni200 Round Wire Commonly Used?

Certainly, the ni200 round wire permeates a myriad of industries due to its admirable attributes, like notable thermal and electrical conductivity and corrosion resistance. In the electronics industry, it fortifies the reliability of connectors, circuits, and coils, while in the automotive and aerospace sectors, its durability and stability under extreme conditions make it a staple for constructing resilient electrical systems and temperature sensors. In the realm of manufacturing, ni200 is crucial for developing efficient heating elements that facilitate various processes, such as molding and drying. The medical sector leverages its stable electrical properties and corrosion resistance to enhance the reliability of critical equipment, whereas in robotics, it underpins control systems and circuits to assure precision and durability.

The wire’s malleability and resistance to tarnishing are exploited in the jewelry industry for crafting exquisite, enduring designs. Furthermore, its consistent electrical and thermal properties find utility in research and development labs, shaping experimental setups and research apparatus. The consumer electronics and energy sectors also harness ni200’s prowess in contributing to the safe and optimal functioning of home appliances and establishing efficacious energy transmission systems, respectively. The multifaceted applications of ni200 round wire root from its intrinsic properties, culminating in its widespread usage across varied industrial landscapes.



The Crazy Wire Company is a leading UK based supplier of nichrome, FeCrAl, 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 ‘What You Need To Know About: Stainless Steel Wires’   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.

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)


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