0.65mm (22 AWG) | KA1 FeCrAl Round Wire


0.65mm FeCrAl resistance wire is a type of heating wire made of an iron-chromium-aluminum alloy. The wire has a diameter of 0.65mm, which is commonly used in applications that require a moderate to high heating load.

✔ Huge Range Available

✔ Produced In Warrington, UK

✔ Shipped Within 24 Hours

✔ 30 Day Returns Accepted

Add to Wishlist
SKU: N/A Categories: ,


FeCrAl Round Wire

The Crazy Wire Company are best known and long established as Europe’s preferred suppliers of top quality FeCrAl round wire. We have enormous stock levels at all times as we use this wire to weave our mesh products.

0.65mm FeCrAl resistance wire is a type of heating wire made of an iron-chromium-aluminum alloy. The wire has a diameter of 0.65mm, which is commonly used in applications that require a moderate to high heating load. FeCrAl resistance wire is known for its high electrical resistance, high-temperature resistance, and good oxidation resistance, which make it suitable for use in heating elements, resistors, and other high-temperature applications. The wire is also easy to work with and can be easily shaped and bent into different configurations.

FeCrAl resistance wire is commonly used in various heating applications, including electric ovens, toasters, water heaters, and industrial furnaces, as well as in the manufacturing of heating coils and resistors.

Technical Specification:

  • Diameter – 0.65mm (650 Micron – 22 AWG)
  • Ohms/ft – 4.26
  • C = Min – 0% Max – 0.08%
  • Si = Min – 0% Max – 0.7%
  • Mn = Min – 0% Max – 0.4%
  • Cr = Min – 20.5% Max – 23.5%
  • Al = Nominal Comp – 5.8% – Min – 0% – Max – 0%
  • Fe = Balance

Available KA1 Options:

  • 1.15mm (17 AWG) – 1.35 ohms/m
  • 1.02mm (18 AWG) – 1.77 ohms/m
  • 0.9mm (19 AWG) – 2.15 ohms/m
  • 0.8mm (20 AWG) – 2.84 ohms/m
  • 0.7mm (21 AWG) – 3.58 ohms/m
  • 0.6mm (22 AWG) – 4.94 ohms/m
  • 0.65mm (22 AWG) – 4.26 ohms/m
  • 0.64mm (22 AWG)
  • 0.5mm (24 AWG) – 7.11 ohms/m
  • 0.55mm x 0.1mm – 26.05 ohms/m
  • 0.55mm (23 AWG) – 5.96 ohms/m
  • 0.4mm (26 AWG) – 11.46 ohms/m
  • 0.48mm (25 AWG) – 7.79 ohms/m
  • 0.45mm (25 AWG) – 8.93 ohms/m
  • 0.42mm (26 AWG) – 10.6 ohms/m
  • 0.3mm (29 AWG) -19.89 ohms/m
  • 0.38mm (27 AWG) – 12.79 ohms/m
  • 0.37mm (27 AWG) – 13.26 ohms/m
  • 0.35mm (27 AWG) – 14.69 ohms/m
  • 0.34mm (28 AWG) -15.15 ohms/m
  • 0.32mm (28 AWG) -17.46 ohms/m
  • 0.2mm (32 AWG) – 46.11 ohms/m
  • 0.28mm (30 AWG) – 22.75 ohms/m
  • 0.27mm (30 AWG) – 24.86 ohms/m
  • 0.25mm (30 AWG) – 29.29 ohms/m
  • 0.23mm (31 AWG) – 34.36 ohms/m
  • 0.21mm (32 AWG) – 40.44 ohms/m
  • 0.1mm x 0.2mm – 71.83 ohms/m
  • 0.1mm (38 AWG)
  • 0.18mm (33 AWG) – 56.98 ohms/m
  • 0.17mm (34 AWG) – 62.57 ohms/m
  • 0.15mm (34 AWG) – 82.52 ohms/m
  • 0.13mm (36 AWG) – 107.87 Ohms/m
  • 0.12mm (36 AWG)
  • 0.09mm (39 AWG) – 228.40 ohms/m
  • 0.08mm (40 AWG)
  • 0.07mm (41 AWG)
  • 0.06mm (42 AWG) – 496 ohms/m
  • 0.05mm (44 AWG) – 577 ohms/m

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

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


FAQs About This Wire

Can KA1 Wire Be Used In Industrial Heater?

Yes, KA1 wire can be used in industrial heaters. KA1 is a brand name for a type of heating wire made from an iron-chromium-Aluminium (FeCrAl) alloy. FeCrAl alloys are known for their high-temperature resistance, excellent oxidation resistance, and good electrical resistivity, which make them well-suited for use in high-temperature heating applications.

KA1 wire can be formed into coils or other shapes to create heating elements for a wide range of industrial heating applications, such as in furnaces, kilns, ovens, and heat treatment processes. KA1 wire is also durable and can withstand repeated heating and cooling cycles, making it a popular choice for industrial heating applications where reliability and long service life are critical.

Which Wire Works Best For Industrial Heater?

The selection of wire for industrial heating applications depends on various factors such as the operating temperature, required heat output, heating time, and environment. The most commonly used wires for industrial heaters are nickel-chromium (NiCr) alloys, iron-chromium-Aluminium (FeCrAl) alloys, and copper-nickel (CuNi) alloys.

NiCr wire is ideal for applications requiring a high-temperature operation and long life. FeCrAl wire is preferred for its excellent oxidation resistance and electrical properties. It is used where a higher operating temperature is required. CuNi wire is the ideal choice for applications where the wire must withstand severe corrosive environments.

How To Know If My Heating Element Is Bad?

There are several signs that can indicate that a heating element is bad or failing. Here are a few common symptoms to look for:

  1. No heat: The most obvious sign that a heating element is bad is if it is not generating any heat at all. If you turn on your appliance and it fails to heat up, there may be an issue with the heating element.
  2. Uneven heating: If your appliance is heating unevenly or is producing hot spots, this could indicate that the heating element is failing or has become damaged.
  3. Burnt or damaged appearance: If the heating element looks visibly damaged or burnt, it is likely that it needs to be replaced.
  4. Strange noises: If you hear unusual noises coming from your appliance, this may indicate that the heating element is struggling to function properly.
  5. High resistance: If you have a multimeter, you can test the resistance of the heating element. A heating element that has a high resistance reading may be faulty.

Which Element Is Used In An Electric Heater?

The most common heating element used in an electric heater is a metal wire that is made of an alloy such as Nichrome, KA1, or other similar materials. These alloys have high electrical resistance, which causes them to generate heat when an electric current passes through them.

The heating element is usually coiled around a ceramic or mica core, and is enclosed in a metal sheath or tube. When an electric current is passed through the heating element, it generates heat which is transferred to the surrounding air, thereby warming the room or space.



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 ‘everything that you need to know about 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), 50 Metres (166.66 Feet)


There are no reviews yet.

Be the first to review “0.65mm (22 AWG) | KA1 FeCrAl Round Wire”

Your email address will not be published. Required fields are marked *