Kanthal D Ø2.5 mm is a FeCrAl, ferritic resistance heating wire. One metre has a resistance of 0.2750 Ω at 20 °C; typical use at this diameter is industrial furnace coils and heat-treatment furnace elements. Industrial furnaces and heaters up to 1300 °C.
Technical data
| Alloy | Kanthal D — FeCrAl, ferritic |
|---|---|
| Wire diameter | 2.5 mm |
| Cross-section | 4.909 mm² |
| Resistance (20 °C) | 0.2750 Ω/m |
| Weight | 35.6 g/m · 1 kg ≈ 28 m |
| Surface area | 78.5 cm²/m |
| Surface/resistance ratio (η) | 285.58 cm²/Ω |
| Resistivity | 1.35 Ω·mm²/m |
| Density | 7.25 g/cm³ |
| Max. operating temperature (air) | 1300 °C (element temperature) |
Quick calculation: for a required power P (W) at voltage U (V), the total resistance is R = U²/P and the wire length ≈ R / 0.2750 m. Contact us before ordering to select coil diameter, pitch and surface load; we can also quote ready-wound coils or complete heating elements.
Resistance, weight and surface values are calculated at 20 °C from the manufacturer's resistivity and density; resistance rises somewhat at operating temperature (Ct factor). The manufacturer datasheet prevails for exact values.
For price per metre or per kilogram and lead time, use the Request a Quote button or call +90 533 945 27 94.
Tags: Kanthal D Ø2.5, Kanthal D wire, resistance wire 2.5 mm, heating wire, furnace heating wire, Kanthal