BRIGHTRAY Alloy C Electrical Resistance Alloy,UNS N06003; 1

### **Product Introduction: BRIGHTRAY® Alloy C (UNS N06003)** **BRIGHTRAY® Alloy C** is a premium nickel-chromium-iron electrical resistance alloy specifically formulated for high-temperature applications requiring exceptional oxidation resistance and stable electrical properties. This alloy is designed to withstand continuous operating temperatures up to 1200°C (2192°F), making it suitable for the most demanding heating element applications in industrial and commercial heating systems. The alloy's optimized composition provides excellent resistance to cyclic oxidation and maintains consistent electrical characteristics under repeated thermal cycling, ensuring reliable performance and extended service life in high-temperature environments. --- ### **Chemical Composition** | Element | Content (%) | |---------|-------------| | **Nickel (Ni)** | 59.0 - 63.0 | | **Chromium (Cr)** | 19.0 - 21.0 | | **Iron (Fe)** | Balance | | **Silicon (Si)** | 1.0 - 2.0 | | **Manganese (Mn)** | 1.0 - 2.0 | | **Carbon (C)** | 0.05 - 0.12 | | **Aluminum (Al)** | 0.50 max | | **Copper (Cu)** | 0.50 max | | **Sulfur (S)** | 0.015 max | --- ### **Physical Properties** | Property | Value | |----------|-------| | **Density** | 8.25 g/cm³ | | **Melting Point** | 1400 - 1425 °C | | **Thermal Conductivity** | 14.2 W/m·K (at 20°C) | | **Electrical Resistivity** | 1.12 μΩ·m | | **Modulus of Elasticity** | 207 GPa | | **Coefficient of Thermal Expansion** | 14.0 μm/m·°C (20-1000°C) | | **Specific Heat Capacity** | 462 J/kg·K | | **Magnetic Response** | Essentially non-magnetic | --- ### **Mechanical Properties** **Annealed Condition:** - **Tensile Strength:** 650 - 780 MPa - **Yield Strength (0.2% Offset):** 300 - 400 MPa - **Elongation:** 35 - 45% - **Hardness:** 78 - 88 HRB **High-Temperature Performance:** - **Maximum Operating Temperature:** 1200°C - **Excellent oxidation resistance up to 1200°C** - **Good creep resistance at elevated temperatures** --- ### **Key Characteristics & Advantages** 1. **Superior High-Temperature Capability** - Excellent oxidation resistance up to 1200°C - Maintains structural integrity under thermal cycling - Stable electrical properties at elevated temperatures 2. **Enhanced Electrical Performance** - Consistent resistivity across temperature ranges - Reliable performance in cyclic heating applications - Low rate of resistance drift 3. **Long Service Life** - Extended element life in high-temperature applications - Resistance to oxide spallation - Durable performance in aggressive atmospheres 4. **Excellent Fabricability** - Good ductility for coil winding and forming - Suitable for welding and brazing operations - Can be manufactured into various wire gauges and forms --- ### **Product Applications** **Industrial Heating Systems:** - High-temperature furnace elements - Industrial oven heating elements - Heat treatment equipment - Ceramic kiln elements **Electrical Heating Applications:** - Commercial appliance heating elements - Industrial process heaters - Temperature calibration equipment - Laboratory furnace elements **Specialized Applications:** - Aerospace heating components - Military specification equipment - High-temperature sensors - Electrical resistance windings --- ### **International Standards** | Standard Type | Standard Number | Description | |---------------|-----------------|-------------| | **UNS** | N06003 | Unified Numbering System | | **ASTM** | B344 | Electrical Resistance Alloys | | **SAE AMS** | 5682 | Aerospace Material Specification | | **DIN** | 17742 | German Standard | | **Werkstoff Nr.** | 2.4869 | Material Number | | **MIL-C-5031** | MIL-C-5031 | Military Specification | --- ### **Summary** **BRIGHTRAY® Alloy C (UNS N06003)** represents a high-performance nickel-chromium-iron electrical resistance alloy engineered for the most demanding high-temperature applications. With its exceptional oxidation resistance up to 1200°C and stable electrical characteristics, this alloy delivers reliable performance in industrial heating systems, commercial appliances, and specialized high-temperature applications. The alloy's ability to maintain mechanical integrity and electrical stability under severe thermal cycling conditions ensures extended service life and consistent performance. Comprehensive certification to major international standards including ASTM B344, SAE AMS 5682, DIN 17742, and military specification MIL-C-5031 guarantees consistent quality and reliability, establishing BRIGHTRAY Alloy C as a premier choice for critical heating applications where maximum temperature capability and long-term durability are essential requirements.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3341 gallon liquid totes Special package is available on request.