Nichrome V,Nichrome V ,UNS N06003,E FORU

British Specs:，American Specs:AMS 5676 Welding Wire AMS 5677 Welding Electrodes AMS 5682 Rods and Wire MIL-R-5031 Cl 7 MIL-E-6844 Cl7，German Specs:

**Product Introduction: Nichrome V / UNS N06003** **Overview** Nichrome V (UNS N06003) is a nickel-chromium alloy specifically engineered for high-temperature electrical heating applications. This premium resistance heating alloy combines excellent oxidation resistance with high electrical resistivity, making it ideal for heating elements operating at temperatures up to 1200°C (2192°F). The alloy maintains stable electrical characteristics and mechanical integrity under prolonged exposure to elevated temperatures. **Key Characteristics** - Excellent oxidation resistance at high temperatures - High and stable electrical resistivity - Good mechanical strength retention at elevated temperatures - Long service life with predictable aging characteristics - Good formability and weldability - Forms protective chromium oxide surface layer --- **Chemical Composition (Weight %)** | Element | Content (%) | Function | |------------------|-----------------|----------------------------| | Nickel (Ni) | 78.0 - 80.0 | Base element, provides high-temperature stability | | Chromium (Cr) | 19.0 - 21.0 | Enhances oxidation resistance through oxide layer formation | | Iron (Fe) | ≤ 1.0 | Controlled impurity | | Silicon (Si) | ≤ 1.0 | Improves oxidation resistance | | Manganese (Mn) | ≤ 1.0 | Deoxidizer and desulfurizer | | Carbon (C) | ≤ 0.15 | Controlled for high-temperature strength | | Sulfur (S) | ≤ 0.015 | Impurity control | --- **Physical Properties** | Property | Value | Condition | |-------------------------------|---------------------------|-------------------------| | Density | 8.40 g/cm³ (0.303 lb/in³) | Room Temperature | | Melting Range | 1400-1420°C (2552-2588°F) | - | | Electrical Resistivity | 1.09 μΩ·m | 20°C | | Temperature Coefficient of Resistance | 0.00013/°C | 20-1000°C | | Specific Heat Capacity | 450 J/kg·K | 20°C | | Thermal Conductivity | 13.0 W/m·K | 20°C | | Mean Coefficient of Thermal Expansion | 13.0 × 10⁻⁶/°C | 20-1000°C | | Curie Temperature | 350°C | - | | Magnetic Properties | Essentially non-magnetic | Above Curie temperature | --- **Mechanical Properties** | Temperature | Tensile Strength | Yield Strength (0.2%) | Elongation | Hardness (HV) | |------------------|------------------|----------------------|------------|---------------| | Room Temperature | 860-965 MPa | 480-550 MPa | 25-35% | 180-220 | | 500°C (932°F) | 550-620 MPa | 320-380 MPa | 28-38% | - | | 800°C (1472°F) | 240-310 MPa | 170-210 MPa | 35-45% | - | | 1000°C (1832°F) | 110-140 MPa | 80-110 MPa | 40-50% | - | --- **Electrical Properties** **Resistance Characteristics** - Resistivity at 20°C: 1.09 μΩ·m (109 μΩ·cm) - Temperature Coefficient: 0.00013/°C (20-1000°C) - Hot/Cold Resistance Ratio: ~1.04 at 600°C - Maximum Element Temperature: 1200°C (2192°F) **Recommended Operating Parameters** - Maximum Surface Load: 1.5-2.5 W/cm² (depending on application) - Continuous Service Temperature: 1150°C (2102°F) - Intermittent Service Temperature: 1250°C (2282°F) --- **Product Applications** **Heating Elements** - Industrial furnaces and heat treatment equipment - Ceramic kilns and glass melting furnaces - Laboratory furnaces and high-temperature ovens - Heat processing systems in manufacturing **Consumer Appliances** - Electric toasters and toaster ovens - Hair dryers and beauty care appliances - Space heaters and room heating systems - Kitchen ovens and cooking appliances - Food warmers and beverage equipment **Industrial Systems** - Temperature sensing elements - Process heating equipment - Industrial drying systems - Heat tracing applications - Electrical resistance units **Specialized Applications** - Aerospace heating systems - Automotive glow plugs - Semiconductor manufacturing equipment - Research and testing apparatus - Special purpose heating devices --- **International Standards & Specifications** **ASTM Standards** - ASTM B344: Standard Specification for Drawn or Rolled Nickel-Chromium and Nickel-Chromium-Iron Alloys for Electrical Heating Elements **International Standards** - IEC 60172: Test procedure for the determination of the temperature index of enamelled and tape wrapped winding wires - ISO 18279: Brazing — Imperfections in brazed joints **European Standards** - EN 10095: Heat resisting steels and nickel alloys - DIN 17470: Resistance alloys for electrical heating **National Standards** - BS 2489: Specification for nickel-chromium alloys for electrical heating elements - JIS C 2520: Nickel-chromium resistance materials for electrical heating - GB/T 1234: High resistance alloys—Nichrome and nickel-chromium-iron alloys --- **Performance Data** **Oxidation Resistance** - Continuous service in air: Up to 1200°C - Intermittent service: Up to 1250°C - Protective oxide layer: Cr₂O₃ formation - Service life: Typically 5,000-10,000 hours at 1100°C **Environmental Limitations** - Sulfur-containing atmospheres: Maximum 800°C - Reducing atmospheres: Maximum 1150°C - Chlorine environments: Not recommended - Vacuum applications: Limited to lower temperatures --- **Manufacturing & Processing** **Available Forms** - Round wire: 0.025-6.0 mm diameter - Flat wire and ribbon - Strip and sheet - Rod and bar - Custom shapes and forms **Fabrication Characteristics** - Good cold workability - Can be wound, bent, and formed at room temperature - Suitable for resistance and TIG welding - Can be brazed using appropriate filler metals **Heat Treatment** - Stress relief: 650-750°C (1202-1382°F) - Annealing: 850-950°C (1562-1742°F) - Atmosphere: Air or protective atmosphere recommended --- **Quality Assurance** **Testing Requirements** - Chemical composition verification - Electrical resistance testing - Mechanical properties testing - Surface quality inspection - Dimensional accuracy verification **Certification** - Mill test certificate to EN 10204 3.1 - RoHS compliance certification - Full material traceability --- **Note** Nichrome V demonstrates exceptional performance in high-temperature heating applications due to its optimized nickel-chromium balance. The alloy develops a protective chromium oxide scale that provides excellent oxidation resistance. Proper design considering surface load requirements, operating environment, and thermal cycling conditions is essential for maximizing service life and performance. **Disclaimer** The information provided is for reference purposes. Actual properties may vary based on manufacturing process and heat treatment. For critical applications, consult manufacturer's technical data sheets and applicable standards. Proper installation and operating procedures must be followed to ensure safe and reliable performance.

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 3054 gallon liquid totes Special package is available on request.