SPARK 0Cr21Al6Nb High-Performance FeCrAl Electric Heating & Resistance Wire
SPARK 0Cr21Al6Nb is an independently developed, high-aluminum Iron-Chromium-Aluminum (FeCrAl) alloy designed for extreme thermal environments. As a flagship product of Shougang Gitane, this alloy is specifically engineered to fill the technical gap in electric heating materials operating above 1350℃.
Product Introduction
By incorporating Niobium (Nb) into a high-purity Chromium-Aluminum matrix, 0Cr21Al6Nb achieves a superior balance of high resistivity and high-temperature deformation resistance (collapse resistance). It is a core material for high-end applications, ranging from solar photovoltaic heat treatment to aerospace engine components, where independent intellectual property and world-class durability are required.
Product Features
Ultra-High Temperature Capability: Supports continuous operation at temperatures up to 1350°C.
Enhanced Structural Stability: The addition of Niobium (Nb) significantly improves the alloy’s resistance to high-temperature deformation (Collapse Resistance).
Superior Oxidation Resistance: Forms a robust protective layer, ensuring a low oxidation weight gain rate (<10% after 200h at 1050°C).
High Electrical Resistivity: Features a stable resistivity of 1.45±0.07 Ω·mm²/m, ideal for high power density designs.
Extended Service Life: Proven through “Rapid Test Life” standards, offering consistent performance in harsh cycles.
Excellent Processing Flexibility: Can be manufactured into ultra-fine fibers (diameter < 0.02mm) for low-nitrogen combustion systems.
Enhanced Structural Stability: The addition of Niobium (Nb) significantly improves the alloy’s resistance to high-temperature deformation (Collapse Resistance).
Superior Oxidation Resistance: Forms a robust protective layer, ensuring a low oxidation weight gain rate (<10% after 200h at 1050°C).
High Electrical Resistivity: Features a stable resistivity of 1.45±0.07 Ω·mm²/m, ideal for high power density designs.
Extended Service Life: Proven through “Rapid Test Life” standards, offering consistent performance in harsh cycles.
Excellent Processing Flexibility: Can be manufactured into ultra-fine fibers (diameter < 0.02mm) for low-nitrogen combustion systems.
Technical Parameters
| Property Item | Unit | 0Cr21Al6Nb Data |
| Max. Continuous Operating Temp | ℃ | 1350 |
| Nominal Composition - Cr | % | 21 |
| Nominal Composition - Al | % | 6 |
| Nominal Composition - Fe | % | Balance |
| Electrical Resistivity (20℃) | Ω·mm²/m | 1.45 ± 0.07 |
| Ct Coefficient (800℃ / 1000℃ / 1200℃) | - | 1.03 / 1.04 / 1.04 |
| Density | g/cm³ | 7.1 |
| Melting Point | ℃ | 1500 |
| Tensile Strength (Room Temp) | MPa | 680 |
| Tensile Strength (900℃) | MPa | 30 |
| Hardness | Hv | 230 |
| Elongation | % | 20 |
| Magnetism | - | Ferromagnetism |
| Thermal Conductivity (20℃) | W/(m·K) | 13 |
Application fields
0Cr21Al6Nb is optimized for clean energy and high-precision industrial sectors:
Technical Support
Why Choose Us?
Independent Intellectual Property: This series fills the domestic gap for alloys above 1350℃ with proprietary tech.
Shougang Group Strength: 50+ years of manufacturing history with a world-class R&D center.
Market Dominance: High-end electric heating alloys hold over 80% of the Chinese market share and rank 2nd globally.
Certified Excellence: ISO9001 certified since 2003; developer of 6 national standards and 70+ patents.
Precision Manufacturing: Ability to produce ultra-fine wires and strips with strict dimensional tolerances.
Shougang Group Strength: 50+ years of manufacturing history with a world-class R&D center.
Market Dominance: High-end electric heating alloys hold over 80% of the Chinese market share and rank 2nd globally.
Certified Excellence: ISO9001 certified since 2003; developer of 6 national standards and 70+ patents.
Precision Manufacturing: Ability to produce ultra-fine wires and strips with strict dimensional tolerances.
Available product specifications
| Form | Specification Range |
| Round Wire / Linear | Custom diameters (Including ultra-fine fibers < 0.02mm) |
| Thick & Thin Strips | Precision width and thickness for high-power density |
| Pre-wound Elements | SPARK brand spiral or custom-bent heating elements |
| Packaging | Plastic/foam + reinforced wooden cases (+ iron plates for long distance) |
