Alloy B，Brightray B Pipe，,E FORU

British Specs:，American Specs:，German Specs:

### **Technical Datasheet: Brightray® B Alloy Pipe (UNS N10001)** #### **1. Product Overview** Brightray B alloy pipe is a seamless nickel-chromium (80Ni-20Cr) tubular product designed for high-temperature applications up to **1150°C**. These pipes combine excellent oxidation resistance with good mechanical strength and stable electrical properties, making them ideal for heating elements, thermal processing systems, and corrosive environment applications. Available in various sizes and wall thicknesses, they maintain reliable performance under continuous thermal cycling and aggressive atmospheres. --- #### **2. Key Characteristics** - **High-Temperature Capability**: Continuous service up to 1150°C in oxidizing atmospheres - **Excellent Oxidation Resistance**: Forms protective chromium oxide scale - **Good Corrosion Resistance**: Resists sulfur atmospheres and various corrosive media - **Thermal Stability**: Minimal distortion under thermal cycling - **Electrical Resistivity**: Consistent performance for electrical heating applications - **Mechanical Strength**: Maintains structural integrity at elevated temperatures --- #### **3. Chemical Composition (Weight %)** | Element | Content | Specification Reference | |---------|---------|------------------------| | Nickel (Ni) | 78.0–80.0% | ASTM B163, B167 | | 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 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 Coefficient of Thermal Expansion (20–1000°C) | 17.0 × 10⁻⁶/°C | | Specific Heat Capacity (20°C) | 440 J/kg·K | | Magnetic Permeability | <1.05 (at 200 Oe) | --- #### **5. Mechanical Properties** **5.1 Room Temperature Properties** | Condition | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | |-----------|-----------------------|---------------------|----------------| | Annealed | 550–690 | 240–310 | 30–40 | | Cold-Drawn | 690–930 | 620–760 | 8–20 | **5.2 High-Temperature Properties** | Temperature (°C) | Tensile Strength (MPa) | Creep Strength (MPa) | |------------------|-----------------------|----------------------| | 800 | 275–345 | 45 | | 1000 | 115–170 | 15 | | 1100 | 70–110 | 8 | --- #### **6. International Standards** | Standard | Title / Specification | |----------|----------------------| | **ASTM B163** | Seamless Nickel and Nickel-Alloy Condenser and Heat-Exchanger Tubes | | **ASTM B167** | Nickel-Chromium-Iron Alloy Seamless Pipe and Tube | | **DIN 17751** | NiCr20 Seamless Tubes (Material No. 2.4869) | | **ISO 6208** | Nickel-Chromium-Iron Alloy Seamless Tubes | | **GB/T 2882** | Nickel and Nickel Alloy Tubes | --- #### **7. Product Applications** **7.1 Heating Element Systems** - Industrial furnace radiant tubes - Electric heating element sheaths - Resistance heating components - Kiln and oven heating elements **7.2 Thermal Processing Equipment** - Heat treatment furnace retorts - Carburizing and annealing fixtures - Thermal processing conveyor systems - Heat exchanger tubes **7.3 Corrosive Environment Applications** - Chemical processing tubing - Pyrolysis system components - Incinerator and exhaust systems - Sulfur recovery unit tubing **7.4 Specialized Applications** - Aerospace combustion chambers - Nuclear reactor components - Semiconductor processing equipment - Laboratory high-temperature systems --- #### **8. Fabrication & Processing** **8.1 Machining & Forming** - **Machining**: Use carbide tools with positive rake angles - **Cold Forming**: Good formability in annealed condition - **Hot Working**: Recommended above 1000°C - **Bending**: Minimum bend radius 2× diameter for thin-walled pipes **8.2 Welding & Joining** - **TIG Welding**: Preferred method using matching filler metal - **MIG Welding**: Suitable for thicker sections - **Brazing**: Silver-based brazing alloys recommended - **Post-Weld Heat Treatment**: 1050–1150°C for stress relief **8.3 Heat Treatment** - **Annealing**: 1050–1150°C followed by rapid cooling - **Stress Relieving**: 750–850°C - **Solution Treatment**: 1150°C for optimal corrosion resistance --- #### **9. Quality Assurance** - **Chemical Certification**: Mill test reports per EN 10204 3.1/3.2 - **Dimensional Inspection**: Meets ASTM/ISO dimensional tolerances - **Non-Destructive Testing**: Eddy current, ultrasonic, or hydrostatic testing available - **Surface Quality**: Pickled, polished, or bright annealed finishes --- #### **10. Operating Parameters** | Parameter | Value | Notes | |-----------|-------|-------| | Maximum Continuous Temperature | 1150°C | Oxidizing atmospheres | | Maximum Intermittent Temperature | 1200°C | Short-term exposure | | Minimum Service Temperature | -200°C | Cryogenic applications possible | | Pressure Rating | Varies by size/temperature | Consult engineering data | --- #### **11. Comparative Advantages** - Superior oxidation resistance compared to stainless steels - Better high-temperature strength than lower nickel alloys - Excellent thermal stability and electrical properties - Cost-effective alternative to cobalt-based superalloys --- #### **12. Disclaimer** This technical information is provided for reference purposes only. Actual performance may vary based on manufacturing processes, service conditions, and specific application requirements. Users should conduct application-specific testing to verify suitability. Always follow safety guidelines and manufacturer recommendations for fabrication, installation, and operation. Compliance with relevant industry standards and regulations is the responsibility of the end user.

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 2823 gallon liquid totes Special package is available on request.