Alloy B，Brightray B Rod，,E FORU

British Specs:，American Specs:，German Specs:

### **Technical Datasheet: Brightray® B Alloy Rod (UNS N10001)** #### **1. Product Overview** Brightray B rod is a wrought nickel-chromium alloy (80Ni-20Cr) designed for high-temperature applications up to **1150°C**. It combines excellent oxidation resistance, stable electrical resistivity, and good mechanical strength, making it ideal for heating elements, furnace components, and industrial thermal systems. The rod form is supplied in diameters ranging from **3 mm to 100 mm**, with surface finishes tailored to machining or direct-use requirements. --- #### **2. Key Characteristics** - **High-Temperature Stability**: Resists oxidation and sagging up to 1150°C. - **Consistent Resistivity**: ~1.09 μΩ·m at 20°C, ensuring reliable heating performance. - **Machinability**: Good machinability in annealed or cold-drawn conditions. - **Sulfur Resistance**: Moderate resistance to sulfur-containing atmospheres. - **Thermal Cycling Resilience**: Maintains structural integrity under repeated heating/cooling cycles. --- #### **3. Chemical Composition (Weight %)** | Element | Content | |---------|---------| | Nickel (Ni) | 78.0–80.0 | | Chromium (Cr) | 19.0–21.0 | | Iron (Fe) | ≤1.0 | | Silicon (Si) | 0.75–1.50 | | Manganese (Mn) | 0.50–1.50 | | Carbon (C) | ≤0.08 | | Other Trace Elements | ≤0.50 total | --- #### **4. Physical Properties** | Property | Value | |----------|-------| | Density | 8.41 g/cm³ | | Melting Point | 1400°C | | Thermal Conductivity (20°C) | 12.5 W/m·K | | Electrical Resistivity (20°C) | 1.09 μΩ·m | | Mean CTE (20–1000°C) | 17.0 × 10⁻⁶/°C | | Specific Heat (20°C) | 440 J/kg·K | --- #### **5. Mechanical Properties (Room Temperature)** | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation | |-----------|------------------|-----------------------------|------------| | Annealed | 550–690 MPa | 240–310 MPa | 30–40% | | Cold-Drawn | 690–930 MPa | 620–760 MPa | 8–20% | --- #### **6. International Standards** | Standard | Title | |----------|-------| | **ASTM B160** | Nickel Rod and Bar | | **DIN 17752** | NiCr20 (Material No. 2.4869) | | **ISO 9725** | Nickel-Chromium Alloy Rod for Electrical Heating | | **GB/T 1234** | China Standard for High-Resistance Alloys | --- #### **7. Product Applications** - **Heating Elements**: Industrial furnace rods, radiant tubes, and resistance wires. - **Thermocouple Components**: Sheaths, protection tubes, and sensing elements. - **Structural Parts**: Furnace brackets, heat treatment fixtures, and support assemblies. - **Aerospace**: Combustion chamber components and exhaust system parts. - **Energy Sector**: Electrodes and heating conductors in high-temperature systems. --- #### **8. Fabrication Notes** - **Machining**: Use carbide tools with slow speeds and coolants. - **Welding**: Suitable for TIG, MIG, and resistance welding. Post-weld annealing recommended. - **Heat Treatment**: Anneal at 1050–1150°C followed by rapid cooling. - **Forming**: Cold-forming possible; hot-working recommended above 1000°C. --- #### **9. Quality Assurance** - Certifications: Mill test reports per EN 10204 3.1/3.2. - Surface: Scale-free, polished, or pickled finishes available. - Dimensional Tolerance: Complies with ASTM B160 tight-tolerance grades. --- #### **10. Disclaimer** Properties may vary based on manufacturing process and rod size. Verify suitability for specific applications through testing. Consult material safety datasheets for handling guidelines.

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 2821 gallon liquid totes Special package is available on request.