22 AWG KA1 Type (FeCrAl A1) Flat Wire (0.81mm x 0.4mm)


The 22 AWG KA1 Type (FeCrAl A1) flat wire is a specialised product designed for use in a range of high-temperature applications. Measuring 0.81mm by 0.4mm, this wire combines the inherent stability and resistance of FeCrAl A1 alloy with the versatility of a flat form factor.

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

Add to Wishlist
SKU: N/A Category:


22 AWG KA1 Type (FeCrAl A1) Flat Wire

The 22 AWG KA1 Type (FeCrAl A1) flat wire is a specialised product designed for use in a range of high-temperature applications. Measuring 0.81mm by 0.4mm, this wire combines the inherent stability and resistance of FeCrAl A1 alloy with the versatility of a flat form factor. This particular gauge offers a middle ground in the series, providing a balance of physical strength and electrical resistance suitable for various uses.

The material, FeCrAl A1, is known for its excellent oxidation resistance, which is essential for any application exposed to high temperatures or corrosive environments. The resistance properties of this wire make it suitable for use in electrical heating elements found in small appliances, industrial furnaces, and kilns, where consistent performance and longevity are vital. Its ability to maintain structural integrity and resist corrosive elements makes it a reliable choice for both indoor and outdoor applications.

The flat profile of the 22 AWG KA1 wire ensures improved heat distribution compared to traditional round wire, allowing for more efficient operation and better performance in heating applications. This is because the increased surface area of the flat wire makes better contact with the heated medium, promoting more uniform heat transfer.

Users can expect this wire to provide precise control and stable resistance, which is crucial for applications requiring accurate electrical characteristics. Its dimensions and the inherent qualities of the FeCrAl A1 alloy offer an excellent blend of functionality and reliability.

This wire is suitable for hobbyists and professionals who need a dependable resistance wire that can withstand demanding conditions without degradation. Whether it’s for intricate craftwork, creating custom heating elements, or repairing household appliances, the 22 AWG KA1 Type wire from The Crazy Wire Company stands as a testament to quality and performance.

Available Options:

  • 19 AWG: 1.15 x 0.56mm
  • 20 AWG: 1.03 x 0.5mm
  • 21 AWG: 0.91 x 0.45mm
  • 22 AWG: 0.81 x 0.4mm
  • 25 AWG: 0.68 x 0.27mm

We also offer the SS316L grade as round wire too if required.

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 SS316L wire. We also have a huge range of KA1and nichrome round wire in immediate stock too.

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


FAQs About This Wire

What Makes 22 AWG KA1 Type Flat Wire Suitable For High-Temperature Use?

The FeCrAl A1 composition of 22 AWG KA1 Type flat wire makes it suitable for high-temperature applications. When exposed to high temperatures, this material has excellent oxidative stability and structural integrity. Despite its high melting point and superior thermal properties, this alloy maintains its performance without significant degradation over time. As a result, 22 AWG KA1 flat wire is an ideal choice for heating elements, electronic components, and other applications that require long-term reliability at high temperatures.

How Does The Thickness Of 22 AWG KA1 Wire Affect Its Resistance?

Thickness, or gauge, of wire is inversely proportional to its resistance; thicker wires have lower resistance. For the 22 AWG KA1 wire, which has a flat cross-section of 0.81mm x 0.4mm, the resistance per meter is determined by the dimensions of the wire and the resistivity of the FeCrAl A1 alloy. By altering the surface area through which current can flow, the flat shape of the wire also influences its resistance. As a result, the resistance of the wire can differ slightly from that of a round wire of the same gauge.

How Do I Calculate The Resistance Of 22 AWG KA1 Flat Wire?

It is necessary to know the resistivity of the FeCrAl A1 alloy and the dimensions of the wire in order to calculate the resistance of 22 AWG KA1 flat wire. In general, resistance is calculated as R = ρ(L/A), where R is resistance, ρ is resistivity, L is the length of the wire, and A is the cross-sectional area. A flat wire’s cross-sectional area can be calculated by multiplying its width by its thickness. This formula can be used to calculate the resistance per meter for 22 AWG flat wire using the resistivity value of KA1 wire and the dimensions of 0.81mm x 0.4mm. Moreover, resistivity varies slightly with temperature, so calculations should take the operating conditions of the wire into account.



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


5 Metres (16.5 Feet), 10 Metres (33 Feet)