0Cr25Al5
0Cr21Al6Nb is a high-performance iron-chromium-aluminum (Fe-Cr-Al) electrical heating alloy enhanced with niobium (Nb). Specifically engineered for extreme high-temperature environments, its chemical composition (21% Cr, 6% Al, trace Nb) delivers exceptional oxidation resistance and long-term durability.
Electric Heating Alloy 0Cr25Al5 Product Introduction
Overview
0Cr25Al5 is a high-performance iron-chromium-aluminum alloy (Fe-Cr-Al) designed for high-temperature electric heating applications. With 25% chromium (Cr), 5% aluminum (Al), and balanced iron (Fe) plus trace rare earth elements, it offers exceptional oxidation resistance, high resistivity, and extended service life, widely used in industrial heating elements, household appliances, and precision thermal control systems.
Key Features
Superior High-Temperature Performance
Maximum continuous service temperature: 1400℃
Short-term tolerance: 1500℃
Forms protective Al₂O₃ oxide layer for oxidation resistance
Excellent Electrical Properties
Resistivity: 1.45±0.05 μΩ·m (20℃)
Low temperature coefficient ensures stable power output
Enhanced Mechanical Properties
Elongation: ≥12% (room temperature)
Tensile strength: ≥650 MPa
Maintains creep resistance at elevated temperatures
Applications
- Industrial furnace heating wires/ribbons
- Core components in water heaters & ovens
- PTC heaters for new energy vehicles
- Laboratory high-temperature equipment
Usage Guidelines
Avoid rapid thermal cycling below 800℃
Recommend protective sleeves in sulfur/halogen environments
Allow thermal expansion clearance during installation
Maintain dry storage for long-term preservation
Contact our engineering team for custom specifications or technical support.
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Competitive Advantages
|
Characteristic |
0Cr25Al5 |
Ni-based Alloy (e.g., Cr20Ni80) |
|
Max Service Temp |
+1400℃ |
+1200℃ |
|
Material Cost |
30-40% lower |
Benchmark |
|
High-Temperature Life |
50% longer |
Benchmark |
|
Low-Temperature Brittleness |
Requires annealing |
Negligible impact |
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