Low-Expansion Cr20Al5 Heating Foil DIN 1.4767 for Catalytic Converters

Premium 0Cr20Al5 FeCrAl Alloy (DIN 1.4767) | High-Temp Heating Wire for Industrial & Consumer Applications

0Cr20Al5 is a premium iron-chromium-aluminum (FeCrAl) alloy engineered for extreme thermal environments. Characterized by exceptionally high electrical resistivity, low temperature coefficient of resistance (TCR), and outstanding oxidation resistance, it operates continuously at temperatures up to 1300°C (2372°F). Ideal for applications demanding rapid heat cycles and long-term stability, this alloy outperforms conventional materials in efficiency and durability.

Key Technical Advantages

Unmatched Thermal Performance

• Max Operating Temp: 1300°C (continuous) / 1400°C (intermittent)
• Low TCR (0.00005/°C): Ensures stable resistance across temperature fluctuations.

Superior Material Properties

• Self-Protecting Oxide Layer: Forms dense α-Al2O3 scale at high temperatures, preventing further oxidation.
• Sulfur & Carbon Resistance: Withstands corrosive atmospheres better than nickel-chromium alloys.
• Low Density (7.2 g/cm³): Reduces component weight vs. Ni-Cr alternatives.

Economic Efficiency

• 30-40% lower cost than NiCr alloys (e.g., Nichrome) with comparable performance.

Technical Specifications

Parameter Value

Int’l Standards DIN 1.4767, UNS K92560

Resistivity 1.35 μΩ·m (20°C)

Thermal Expansion 12.5 ×10^(-6)/K (20-1000°C)

Available Forms Wire, Foil, Strip, Ribbon

Thickness Range 0.05mm - 3.0mm (Customizable)

Critical Applications

Industrial Equipment

• Heating elements in tunnel furnaces, industrial kilns, and heat treatment systems.
• Catalyst substrates in automotive exhaust systems (metal honeycomb carriers).

Consumer Electronics

• Induction cooktops & electric ceramic hobs (rapid heating coils).
• Hair dryers, space heaters, and high-efficiency toaster elements.

Emerging Technologies

• Fuel cell components, hydrogen production systems, and aerospace thermal management.

Quality Commitment

• Certified Compliance: Full traceability with EN 10204 3.1 certification.
• Precision Manufacturing: Controlled oxide-free surface (Ra ≤ 0.8μm).
• Performance Validation: Third-party tested for cyclic oxidation resistance (1,000+ hours at 1200°C).

Normal composition%

Typical Physical properties