0Cr20Al6RE Rare-Earth FeCrAl Wire
Also Known As: RE-Enhanced FeCrAl, Kanthal APM Alternative
Max 1300°C| Chemical Composition (%) | |
|---|---|
| Element | Value |
| C | ≤0.04 |
| P | ≤0.025 |
| S | ≤0.02 |
| Mn | ≤0.5 |
| Si | ≤0.4 |
| Cr | 19.0~21.0 |
| Ni | ≤0.6 |
| Al | 5.0~6.0 |
| Fe | Remainder |
| RE | 0.04~1.0 |
| Physical Properties | |
| Property | Value |
| Max. Operating Temp. | 1300°C |
| Resistivity at 20°C (μΩ·m) | 1.40±0.07 |
| Density | 7.2 g/cm³ |
| Thermal Conductivity (20°C) | 13 W/(m·K) |
| Linear Expansion Coeff. (20-1000°C) | 14.0×10⁻&sup6;/°C |
| Specific Heat Capacity | 0.48 J/(g·K) |
| Approx. Melting Point | 1500°C |
| Elongation (A/%) | ≤3.0mm: ≥12%; >3.0mm: ≥15% |
| Tensile Strength (Rm) | ≥600 MPa |
| Accelerated Life Test | ≥80h/1300°C |
| Microstructure | Ferrite |
| Magnetic Properties | Magnetic |
| Available Forms | |
| Form | Size |
| Bright & Soft Annealed Wire | 0.05-1.6mm |
| Acid-Pickled / Oxidation Wire | 1.0-12.0mm |
| Rods | 6.0-150.0mm |
0Cr20Al6RE — Rare-Earth Enhanced FeCrAl Alloy
0Cr20Al6RE contains carefully controlled rare earth element additions that significantly improve oxidation resistance and creep strength at elevated temperatures. The rare earth elements refine the oxide scale structure, making it more adherent and resistant to spalling during thermal cycling. This results in extended element life compared to standard FeCrAl alloys.
Key Advantages
- Enhanced oxidation resistance from rare earth additions
- Superior creep resistance at high temperatures
- Improved oxide scale adhesion — reduced spalling
- Excellent thermal cycling durability
- Good formability and weldability
- Kanthal APM equivalent performance at competitive pricing
Typical Applications
- High-temperature industrial furnaces with frequent cycling
- Continuous and batch-type heat treatment furnaces
- Ceramic and glass industry kilns
- Automotive exhaust heating sensors
- Chemical processing furnace elements
- Elements requiring long life under thermal cycling
Standards & Equivalents
International Standard Cross-Reference for 0Cr20Al6RE
| GB/T (China) | 0Cr20Al6RE |
|---|---|
| Sandvik Kanthal | Kanthal APM (equivalent performance) |
| Classification | Rare-earth enhanced FeCrAl |
| Key Feature | RE addition for improved oxide scale adhesion |