Kanthal A-1 is a ferritic iron-chromium-aluminium alloy (FeCrAl alloy) rated for use at temperatures up to 1400°C (2550°F). The alloy has high resistivity and great oxidation resistance. It is typically used in furnace applications, such as electrical heating elements in high-temperature furnaces for heat treatment, glass, steel, ceramics, and electronics industries.
Features
- Computerized spooling by weight.
- Clean production environment houses spooling process.
- Proudly Made in the U.S.A. ZERO wire imports policy.
- Perfectly tensioned. Zero elongation, scratches, or other flaws.
- ZERO contaminants. Hands-off feeding eliminates skin salts & oils.
Which resistance wire is right for you?
Specification |
Nichrome 60 |
Nichrome 80 |
Kanthal A-1 |
Maximum Operating
Temperature |
1150°C (2100°F) |
1180°C (2150°F) |
1400°C (2550°F) |
Common Applications |
Tubular heating elements as suspended coils |
Furnace applications |
Advantages |
- Higher hot and
creep strength - Better ductility
after use - Higher emissivity
- Non-magnetic
- Better wet corrosion
resistance
|
- Higher max temperature
in air - Higher surface load
- Higher resistivity
- Higher yield strength
- 2-4x longer life than
Nichrome - Better oxidation properties
- Lower density
- Better resistance to sulfur
|
Resistance
The more wire you have, the greater the resistance. The following factors affect resistance.
Diameter: The thinner the wire (higher gauge number), the higher the resistance per foot. The thicker the wire (lower gauge number), the lower the resistance.
Length: The longer the wire, the higher the overall resistance. The shorter the wire, the lower the overall resistance.
Temperature: The more heat the wire generates, the more resistance it will create.
Current: Determine the current (amperage) you need to heat your wire.
Gauge (AWG) |
Wire Diameter |
Resistance (Ohms / ft at 68°F) |
Feet Per Lb. |
Inch |
mm |
16 |
0.0508 |
1.29032 |
0.324 |
159 |
18 |
0.0403 |
1.02362 |
0.515 |
253 |
20 |
0.032 |
0.8128 |
0.817 |
401 |
22 |
0.0253 |
0.64262 |
1.31 |
641 |
24 |
0.0201 |
0.51054 |
2.07 |
1018 |
26 |
0.0159 |
0.40386 |
3.31 |
1626 |
27 |
0.0142 |
0.36068 |
4.15 |
2040 |
28 |
0.0126 |
0.32004 |
5.27 |
2609 |
29 |
0.0113 |
0.28702 |
6.55 |
3226 |
30 |
0.01 |
0.254 |
8.36 |
4142 |
31 |
0.0089 |
0.22606 |
10.6 |
5181 |
32 |
0.008 |
0.2032 |
13.1 |
6473 |
33 |
0.0071 |
0.18034 |
16.6 |
8217 |
34 |
0.0063 |
0.16002 |
21.1 |
10437 |
36 |
0.005 |
0.127 |
33.4 |
16447 |