Core Value
The Iron Chrome Aluminum Alloy Resistance Heating Wire (FeCrAl Alloy Wire) is engineered for ultra-high-temperature heating applications in industrial heat treatment furnaces, kilns, ceramic machinery, and high-wattage electric appliances. Formulated with high-purity iron, chromium, and aluminum matrix alloys (such as 0Cr25Al5, 0Cr21Al6Nb, and 0Cr27Al7Mo2 / Kanthal APM equivalent grades), this resistance heating wire forms a dense, self-healing Al₂O₃ (Aluminum Oxide) protective surface layer when heated.
This protective oxide film prevents internal oxidation, delivers high electrical resistivity, and allows continuous thermal operation at temperatures up to 1400°C (2552°F). Offering higher surface load capability, lower density, and better cost efficiency than conventional NiCr wires, it is ideal for heavy-duty industrial heating elements requiring long service life under high thermal stress. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE and UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS for guaranteed electrical uniformity and zero-defect performance.
- ✓ Extreme Operating Temperatures: Operates continuously up to 1400°C (2552°F), surpassing conventional NiCr alloy temperature limits.
- ✓ Protective Al₂O₃ Oxide Layer: Forms a tight, continuous alumina scale that delivers exceptional resistance to high-temperature corrosion and oxidation.
- ✓ High Electrical Resistivity: Superior resistivity value allows for thinner wire diameters and compact element design with higher power density.
- ✓ High Surface Load Resistance: Withstands higher surface watt densities, accelerating furnace warm-up times and thermal efficiency.
- ✓ Cost-Effective & Lightweight: Lower density than nickel-based alloys provides more linear meters per kilogram, significantly reducing raw material costs.
- ✓ Versatile Supply Forms: Available in bright annealed wire, oxidized wire, flat ribbon/strip, and custom pre-coiled spiral heating elements.
- ✓ Reliable Quality: 30+ YEARS MANUFACTURING EXPERIENCE guarantees precise wire drawing tolerances and uniform electrical resistance.
- ✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS including tensile strength, elongation, and resistance per meter testing.
- ✓ Global Compliance: CE, RoHS, ISO 9001, and ISO 14001 certified.
Technical Specifications & Performance Data
| Parameter | Standard Value | Customizable Range | Notes |
| Alloy Grades | 0Cr25Al5 / 0Cr21Al6Nb / 0Cr27Al7Mo2 | Custom FeCrAl compositions | Equivalent to Kanthal A1, APM, AF series |
| Wire Diameter Range | Ø 0.10 mm – Ø 12.0 mm | AWG 36 to AWG 0 / Custom Sizes | Precision drawn to ±0.01 mm tolerance |
| Strip / Ribbon Size | Thickness: 0.1 – 4.0 mm, Width: 1 – 100 mm | Custom strip dimensions | Cold-rolled bright or oxidized surface |
| Resistivity (20°C) | 1.35 – 1.45 μΩ·m | Dependent on alloy grade | High electrical resistivity for maximum power density |
| Max Working Temp | 1200°C – 1400°C (2192°F – 2552°F) | Up to 1425°C peak rating | Higher thermal limit than NiCr alloys |
| Density | 7.10 g/cm³ – 7.25 g/cm³ | Standard FeCrAl density | ~13% lighter than NiCr wire (more length per kg) |
| Melting Point | 1500°C (2732°F) | Standard physical property | High thermal margin against structural sag |
| Thermal Conductivity | 11 – 15 W/(m·K) | Measured at high temp | Excellent thermal dissipation along the wire |
| Supply Condition | Bright Annealed / Oxidized / Coiled | Spooled, coiled, or straight lengths | Packaged on DIN plastic spools or heavy coils |
| Warranty | 1 Year Standard | Extended coverage available | Guaranteed against manufacturing defects |
Industrial Applications & Solutions
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Industrial Heat Treatment Furnaces: High-temperature heating elements for annealing, carburizing, hardening, and forging furnaces.
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Ceramic & Glass Kilns: Continuous heating spirals inside ceramic sintering kilns, glass fusing lehrs, and dental porcelain furnaces.
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Radiant Tube & Bobbin Heaters: Spiral coils inserted into ceramic bobbin cores and alloy radiant tubes for indirect furnace heating.
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Plastics & Hot Runner Systems: Internal heating wire elements for cartridge heaters, nozzle heaters, and cast aluminum band heaters.
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Commercial & Home Electric Appliances: Heating coils for toaster ovens, hand dryers, room heaters, sauna stoves, and industrial hot air guns.
HT-Heater vs Standard Market Resistance Wires
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Feature HT-Heater FeCrAl Wire Standard Market Wire Your Advantage Alloy Purity & Sintering High-Purity Vacuum Induction Melted Low-Grade Scraps / Impure Melt Uniform resistance per meter, zero localized burnouts Max Working Temp Continuous operation up to 1400°C Warps / oxidized below 1100°C Long service life in high-temperature industrial kilns Protective Oxide Layer Rapid-Forming Dense Al₂O₃ Scale Flaking / Loose Oxide Layer Superior corrosion resistance, prevents wire thinning Resistance Stability Strict Resistance Tolerance (±3%) High Resistance Drift (> 10%) Precise temperature control and stable furnace amperage Manufacturing Exp. 30+ YEARS EXPERIENCE Unverified Workshops Engineered wire drawing, annealing, and spooling Quality Assurance MULTIPLE RIGOROUS QUALITY CHECKS Basic Resistance Check Only ZERO DEFECT DELIVERY
Installation & Handling Guidelines
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Calculated Coil Pitch: When coiling FeCrAl wire into spiral furnace elements, ensure a coil pitch of 2 to 3 times the wire diameter to prevent adjacent turns from touching and short-circuiting.
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Cold Winding Precaution: Ensure FeCrAl wire is at room temperature (above 15°C) before bending or coiling. Very thick wire gauges (> 6 mm) should be pre-warmed slightly to prevent brittleness during sharp bending.
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Pre-Oxidation Burn-In: Before subjecting new heating elements to full industrial loads, perform an initial pre-oxidation bake-out in air at 1050°C for 2 hours to form a complete Al₂O₃ protective skin.
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Avoid Atmosphere Contamination: Ensure furnace interiors are free from sulfur, chlorine, and heavy carbon soot, as active reducing agents can attack the alumina oxide layer.
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Terminal Connection: Secure wire ends with heavy-duty mechanical screw clamps or nickel busbar leads. Avoid soft soldering or low-temp brazing near the active heat zone.
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Customer Success Stories
Case 1: Industrial Kiln Manufacturer (Poland)
- Application: High-temperature ceramic sintering shuttle kiln operating at 1300°C.
- Challenge: Standard resistance wires oxidized rapidly and sagged, causing frequent element replacing and production stops.
- Solution: 0Cr27Al7Mo2 Iron Chrome Aluminum Alloy Resistance Heating Wire (Coiled Element Form).
- Results: ELEMENT SERVICE LIFE DOUBLED. “The FeCrAl wire from HT-Heater maintains outstanding structural stability at 1300°C. HT-Heater UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS, and wire resistance from spool to spool is completely uniform.
Case 2: Heating Element Fabricator (USA)
- Application: Production of high-wattage industrial mica band and tubular heating elements.
- Challenge: Inconsistent wire diameter from previous suppliers caused amperage spikes and high defect rates during final testing.
- Solution: Bright Annealed 0Cr25Al5 FeCrAl Resistance Wire (Spool Packaging).
- Results: PRODUCTION YIELD INCREASED TO 99.4%. “30+ YEARS MANUFACTURING EXPERIENCE is reflected in their drawing precision. Resistance tolerances are spot-on, making automated winding effortless.”
Pricing & Procurement Options
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Standard Production: MOQ 10 kg (Wire/Strip) or 10 pieces (Pre-coiled elements). BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE ensuring exact metallurgical purity across production batches. Tiered volume discounts available for 100+ kg orders.
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Lead Times: Standard Stock Wire Diameters (Ø 0.5 mm to Ø 6.0 mm): 3-5 days. Custom Alloy Compositions, Flat Strips, or Spiral Coiling: 7-10 days. Urgent air dispatch available.
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Global Logistics: Spooled on DIN 200/250 plastic spools or heavy wooden reels. Protected with moisture-proof wrapping and wooden export crates.
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Sample Orders: Free sample spools available for resistance testing and trial winding. Every shipment UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS prior to dispatch.
Pricing & Procurement Options
-
Standard Production: MOQ 10 kg (Wire/Strip) or 10 pieces (Pre-coiled elements). BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE ensuring exact metallurgical purity across production batches. Tiered volume discounts available for 100+ kg orders.
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Lead Times: Standard Stock Wire Diameters (Ø 0.5 mm to Ø 6.0 mm): 3-5 days. Custom Alloy Compositions, Flat Strips, or Spiral Coiling: 7-10 days. Urgent air dispatch available.
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Global Logistics: Spooled on DIN 200/250 plastic spools or heavy wooden reels. Protected with moisture-proof wrapping and wooden export crates.
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Sample Orders: Free sample spools available for resistance testing and trial winding. Every shipment UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS prior to dispatch.
Global Certifications & Compliance
- CE Marking
Fully compliant with European safety and environmental standards. - LVD Compliance
Low Voltage Directive tested for continuous thermal load safety. - RoHS Compliant
Constructed using environmentally safe, lead-controlled brass alloys. - ISO 9001
Certified quality control covering CNC machining, coil pressing, and electrical testing.
Quality Documentation: Certificate of Conformity (COC) and insulation resistance test reports included.
Comprehensive After-Sales Support
- Warranty: 1-Year Comprehensive Warranty covering internal heating element and built-in sensor.
- Technical Support: Application engineers available for wattage distribution calculation, thermocouple calibration, and nozzle fitting assistance.
- Global Response Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE with technical inquiry feedback within 2 hours.
Ready to Optimize Your Injection Molding?
- Next Steps:
- 📧 Request Custom Quote – Send your nozzle dimensions, wattage, voltage, and HT-CLW-450 drawing requirements.
- 🔧 Free Design Consultation – Work with our thermal engineers to optimize heat distribution and lead insulation.
- 📦 Order Test Samples – Evaluate thermal performance on your injection molding machine.
- 📞 Contact Hot Runner Experts – Response within 2 hours
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