0Cr21Al6 SWG 14 Wire with White Surface – Specifications

0Cr21Al6 SWG 14 Wire with White Surface – Specifications

Material Composition:

• 0Cr21Al6 is a Fe-Cr-Al (Iron-Chromium-Aluminum) alloy, commonly used in heating applications due to its high-temperature resistance and oxidation resistance.

• Composition:

• Chromium (Cr): ~21%

• Aluminum (Al): ~6%

• Iron (Fe): Balance

• Small amounts of rare earth elements (REEs) for improved oxidation resistance.

Physical & Electrical Properties:

• Wire Gauge (SWG 14): ~2.03 mm diameter

• Surface: White oxide-coated (provides enhanced resistance to oxidation and scaling)

• Density: ~7.2 g/cm³

• Melting Point: ~1450°C

• Maximum Operating Temperature: ~1300°C

• Electrical Resistivity: ~1.42 Ω·mm²/m

• Resistance per meter (approx.): ~0.43 Ω/m

Mechanical Properties:

• Tensile Strength: ~650-750 MPa

• Elongation at Break: ~12-18%

• Hardness: Moderate, slightly brittle compared to Nichrome wires

Key Features & Advantages:

✔ High-temperature resistance – Suitable for up to 1300°C.
✔ Excellent oxidation resistance – Aluminum forms a protective oxide layer.
✔ Longer service life – More durable than Nichrome in high-heat environments.
✔ Good electrical resistivity – Efficient heating performance.

Common Applications:

• Heating elements in industrial furnaces, kilns, and electric ovens.

• Resistive heating wire for high-temperature applications.

• Heat treatment equipment.

• Infrared heaters and electric stoves.