Alloy B,Brightray B Wire,,E FORU

British Specs:，American Specs:，German Specs:

**Product Data Sheet: Alloy B / Brightray B High-Temperature Resistance Wire** --- ### **1. Product Overview** **Brightray B** (Alloy B) wire is a premium nickel-chromium (80/20) resistance heating alloy manufactured to the highest standards for critical high-temperature applications. Through precision drawing and annealing processes, this wire maintains exceptional oxidation resistance, consistent electrical properties, and superior high-temperature strength. Brightray B wire is the preferred choice for heating elements in industrial furnaces, household appliances, and thermal systems requiring reliable performance up to 1150°C. The wire forms a protective, self-healing chromium oxide (Cr₂O₃) scale during operation, ensuring long service life and stability in oxidizing atmospheres. --- ### **2. Chemical Composition (Typical % by Weight)** | Element | Content (%) | Function | |---------|-------------|----------| | Nickel (Ni) | 80 | Base element providing austenitic structure and thermal stability | | Chromium (Cr) | 20 | Forms protective Cr₂O₃ scale for oxidation resistance | | Iron (Fe) | ≤ 1.0 | Residual element | | Carbon (C) | ≤ 0.15 | Controlled for optimal high-temperature strength | | Manganese (Mn) | ≤ 1.0 | Deoxidizer during melting process | | Silicon (Si) | ≤ 1.0 | Enhances scale adherence and high-temperature performance | | Copper (Cu) | ≤ 0.5 | Residual element | | Sulfur (S) | ≤ 0.015 | Minimized for optimal hot workability | --- ### **3. Physical & Mechanical Properties** | Property | Value / Description | |----------|---------------------| | **Density** | 8.41 g/cm³ (0.304 lb/in³) | | **Melting Point** | Approx. 1400°C (2550°F) | | **Thermal Conductivity** | 12.5 W/m·K at 20°C | | **Coefficient of Thermal Expansion** | 17.0 μm/m·K (20-1000°C) | | **Electrical Resistivity** | 1.09 μΩ·m at 20°C | | **Tensile Strength** | 690-1030 MPa (varies with diameter and temper) | | **Elongation** | 10-30% (depending on diameter and temper) | | **Maximum Service Temperature** | 1150°C (2100°F) in oxidizing atmospheres | | **Specific Heat Capacity** | 440 J/kg·K at 20°C | --- ### **4. Product Applications** #### **4.1 Electrical Heating Elements** - Industrial furnace heating elements - Household appliance heating coils (ovens, toasters, heaters) - Laboratory furnace wire elements - Industrial process heaters - Ceramic kiln elements #### **4.2 Specialized Electrical Applications** - Resistance wire for precision resistors - Thermocouple extension wires - High-temperature electrical leads - Electrical discharge machining wires - Spark plug electrodes #### **4.3 Industrial & Manufacturing** - Welding electrode core wire - Thermal spray wire - Wire for weaving high-temperature meshes - Fastener manufacturing - Spring wire for high-temperature applications --- ### **5. Key Features & Benefits** - **Excellent Oxidation Resistance**: Continuous service up to 1150°C in air - **Consistent Electrical Properties**: Uniform resistivity for predictable performance - **High Temperature Strength**: Resists sagging and deformation at operating temperatures - **Good Formability**: Can be coiled, bent, and formed into complex shapes - **Long Service Life**: Protective oxide scale ensures extended operational life - **Excellent Weldability**: Suitable for all standard welding processes - **Multiple Tempers Available**: Annealed, 1/4 hard, 1/2 hard, full hard --- ### **6. International Standards & Specifications** #### **6.1 Primary Specifications** - **ASTM**: B166 - Standard Specification for Nickel-Chromium-Iron Alloy Rod, Bar and Wire - **UNS**: N06003 - **DIN**: 2.4869 (NiCr80/20) - **EN**: NiCr20 (Material No. 2.4869) - **BS**: BS 972 (Alloy 2) - **JIS**: JIS G 4902 (NCF 2) #### **6.2 Industry Specifications** - **IEC**: 60240 - Characteristics of electric heating elements - **AMS**: 5545 - Welding Wire - **AWS**: ERNiCr-3 - Filler metal specification --- ### **7. Product Specifications & Forms** #### **7.1 Standard Wire Products** - **Diameter Range**: 0.025mm to 6.0mm (0.001" to 0.250") - **Tolerance**: ±1-2% depending on diameter - **Spool Sizes**: 1kg to 50kg spools, custom packaging available - **Surface Finish**: Bright annealed, oxide-free finish - **Temper Conditions**: Annealed (soft), hard drawn, or intermediate tempers #### **7.2 Special Wire Forms** - **Pre-formed coils**: Ready-to-install heating elements - **Ribbon wire**: Flat cross-sections for specific applications - **Resistance wire**: Precision resistance alloys - **Bare wire**: For high-temperature applications - **Insulated wire**: With high-temperature ceramic insulation --- ### **8. Fabrication & Processing Notes** #### **8.1 Element Manufacturing** - **Coiling**: Can be coiled cold for most applications - **Annealing**: Stress relief annealing recommended after severe forming - **Welding**: Use matching filler metals (AWS ERNiCr-3) - **Support**: Use appropriate high-temperature supports to prevent sagging #### **8.2 Handling & Storage** - Store in dry conditions to prevent surface contamination - Handle with clean gloves to avoid surface contamination - Protect from mechanical damage during handling and shipping --- ### **9. Quality Assurance** - **Certification**: Mill Certificates per EN 10204 3.1/3.2 - **Testing**: Full mechanical and electrical property testing - **Traceability**: Complete lot traceability from melt to final product - **Compliance**: RoHS, REACH, and other environmental regulations --- **Disclaimer**: The information provided is for reference purposes only. Properties may vary based on wire diameter, temper, and manufacturing process. Users should conduct appropriate testing to verify suitability for specific applications. Continuous product improvement may lead to changes in specifications.

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 2832 gallon liquid totes Special package is available on request.