Electrical Resistance Wire Nickel Chromium 80/20 Flat Wire Ni80 Cr20 Ribbon Wire

Product Specification

Electrical Resistance Wire Nickel Chromium 80/20 Flat Wire Ni80 Cr20 Ribbon Wire for Electronics industy

Product Introduction

Cr20Ni80 Wire has a wide range of applications in the electronics field, mainly due to its excellent resistance properties and high temperature stability. The main components of this alloy include 20% chromium (Cr) and 80% nickel (Ni), and the combination of these components makes it perform well in high temperature and corrosive environments. The physical properties of Cr20Ni80 Wire include density 8.4 g/cm³, melting point 1400°C, resistivity at 20°C is about 1.09 Ω·mm²/m, thermal expansion coefficient (20°C-1000°C) is 17×10⁻⁶/°C, and thermal conductivity (20°C) is 15 W/m·K.
In the electronics field, Cr20Ni80 Wire is widely used to manufacture various resistance components, such as resistors, potentiometers, thermistors, etc. Its high resistivity and stable resistance characteristics enable it to generate stable heat when current passes through it, while maintaining good corrosion resistance and oxidation resistance, ensuring the reliability and safety of the equipment in long-term use. In addition, the resistance temperature coefficient of Cr20Ni80 Wire is small (<200 ppm/°C, 20°C-1000°C), which means that the change of resistance value is very small in a wide temperature range, so its resistance value has high stability, which is particularly suitable for precision instruments and constant temperature electric heating elements.

Size dimension range:

Wire: 0.01-10mm

Ribbons: 0.05*0.2-2.0*6.0mm

Strip: 0.05*5.0-5.0*250mm

NiCr series: Cr10Ni90,Cr20Ni80, Cr30Ni70, Cr15Ni60, Cr20Ni35, Cr20Ni30

Parameter

Specific Applications

1. Manufacturing resistance elements: It can be used to make resistors, potentiometers, thermistors, etc. Its high resistivity, low resistance temperature coefficient, good oxidation resistance and corrosion resistance make its resistance value change little in a wide temperature range and high stability. It is suitable for precision instruments and constant temperature electric heating elements and other occasions that require high resistance stability.
2. Electric heating elements: It can be used to make electric heating wires, electric furnace wires, ceramic electric heaters, etc. In electronic equipment, such as electric water heaters, electric furnaces, ironing machines, plastic molding molds, soldering irons, etc. in household appliances, as well as heating elements in industrial furnaces, Cr20Ni80 Wire is widely used. It can work stably for a long time in high temperature environments and provide reliable electric heating functions.
3. High temperature resistors: It is suitable for various types of industrial high temperature resistance elements, can withstand high temperatures and maintain stable resistance values, and meet the use requirements of electronic equipment under high temperature conditions.
4. Electronic components: It can also be used to manufacture electronic components such as inductors and transformers. Its good conductivity and corrosion resistance can ensure that these components work stably for a long time and ensure the normal operation of electronic equipment.

Advantages and Characteristics

• High resistivity: The resistivity of Cr20Ni80 alloy is relatively high, about 1.0 × 10⁻⁶ Ω·m (20°C) at room temperature, which makes it an ideal material for making electric heating elements. Its resistivity increases linearly with increasing temperature. This characteristic provides a strong guarantee for the precise control of electric heating elements.
• Stable temperature coefficient: The resistivity of the alloy changes linearly at different temperatures and can accurately reflect temperature changes, thus serving as a core component in high-temperature control systems.
• High strength and high toughness: Cr20Ni80 alloy has good mechanical properties both at room temperature and high temperature. Its room temperature tensile strength is about 650 MPa and its elongation is about 35%. At 500°C, its tensile strength drops to 500 MPa, but it is still sufficient for most high-temperature applications.
• High temperature performance: Cr20Ni80 alloy can work for a long time at a temperature as high as 1200℃, and can still maintain good oxidation resistance and carburization resistance in high temperature environment. In a high temperature environment of 1000°C, Cr20Ni80 material can maintain good mechanical properties, and its creep resistance is significantly higher than that of ordinary nickel-chromium alloys.

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Support and Services:

Our Nichrome Alloy product comes with technical support and services to ensure optimal performance and customer satisfaction:

• Expert consultation on product selection and application
• Technical assistance for installation and maintenance
• Product testing and analysis for quality control
• Customized solutions for unique customer needs
• Training and education on product use and safety

We are committed to providing our customers with the highest level of support and service for our Nichrome Alloy product.

Packing and Shipping:

Product Packaging:

• The Nichrome Alloy product will be packaged securely in a durable cardboard box to ensure safe transport.
• The product will be wrapped in protective bubble wrap to prevent any damage during shipping.
• A label with the product name and details will be placed on the box for easy identification.

Shipping:

• The product will be shipped via a reputable courier service within 2 business days of receiving the order.
• Customers will receive a tracking number once the product has been shipped.
• Please allow 5-7 business days for delivery.
• If there are any issues with the product or shipping, please contact our customer service team for assistance.

Related Questions and Answers

Q: What is the heat treatment process of Cr20Ni80 wire?
Answer: The heat treatment process of Cr20Ni80 wire includes annealing, solution treatment and aging treatment. Annealing temperatures are typically 800°C to 1000°C, solution treatment temperatures are 1000°C to 1150°C, followed by rapid water cooling, and aging temperatures are 450°C to 600°C. Reasonable heat treatment process can significantly improve the comprehensive properties of the alloy.
Q: What is the fatigue performance of Cr20Ni80 wire?
Answer: Cr20Ni80 wire is prone to fatigue cracks during repeated heating and cooling at high temperatures. In the rapid thermal cycle test at 1000°C and 20°C, significant micro cracks appeared on the surface of the material after 1000 cycles, accompanied by tiny peeling. As the number of cycles increases, the cracks further expand, resulting in a degradation of material properties.

Q: What is the oxidation resistance of Cr20Ni80 wire?
Answer: Cr20Ni80 wire has excellent anti-oxidation properties. Its surface can form a dense chromium oxide film at high temperature, which effectively prevents further oxidation. When heated in air, the oxide film is able to self-repair, which gives it better long-term stability at high temperatures. The anti-oxidation temperature can reach over 1100°C, especially showing good corrosion resistance in oxygen atmosphere.