PTC Ni-Fe Alloy Wire NF15 High-Temperature Resistivity 0.15 and Excellent Mechanical Properties for Superior Performance

PTC Ni-Fe Alloy Wire NF15 High-Temperature and Excellent Mechanical Properties for Superior Performance, Resistivity 0.15

The product exhibits a resistivity of 0.15 at a temperature of 20°C, with a tolerance range of ±0.02.

PTC Ni-Fe Alloy Ni75-85, also known as Alloy 75 or N06075, is a nickel-chromium-iron alloy with added titanium. It is characterized by excellent resistance to oxidizing atmospheres up to 1100°C and good mechanical properties at temperatures up to 1000°C. This alloy is known for its high-temperature low-creep performance and is strengthened by additives like titanium and aluminum.

Chemically, it comprises the remainder as nickel, with 18-21% chromium, up to 5% iron, and 0.2-0.6% titanium, among other elements. Physically, it has a density of 8.2 g/cm³, a specific heat capacity of 420 J/kg K, and a thermal conductivity of 13 W/m K. Mechanically, it exhibits a 0.2% yield strength of at least 235 N/mm², a tensile strength of at least 640 N/mm², and an elongation of at least 26%.

The alloy is readily fabricable and weldable, with applications in extruded sections, hexagon flats, pipes, plates, strips, and wires. It is commonly used in high-temperature applications due to its corrosion resistance and heat resistance, making it suitable for use in turbine blades and other demanding environments.

Resistance Values and Naming Conventions for PTC Ni-Fe Alloy Wires

Chemical Composition of Different Models of PTC Ni-Fe Alloy Wire

Temperature Coefficients of Different Models of PTC Ni-Fe Alloy Wire

Mechanical properties (tensile strength)

Size (diameter)

Some key features of NF15 include:

1. Corrosion and Heat Resistance: The alloy exhibits good corrosion resistance and heat resistance, making it suitable for high-temperature applications

2. High-Temperature Applications: It is used in static high-temperature applications due to its strength at elevated temperatures

3. Chemical Composition: It contains the remainder as nickel, 18-21% chromium, up to 5% iron, 0.2-0.6% titanium, and 0.08-0.15% carbon

4. Physical Properties: The density of Nimonic® 75 is 8.37 g/cm³, with a melting point of 1380°C. It has a coefficient of expansion of 11.0 μm/m °C (20 – 100 °C) and a modulus of elasticity of 206 kN/mm²

5. Mechanical Properties: Annealed Nimonic® 75 has a tensile strength of less than 800 N/mm² and can operate in temperatures ranging from -200 to +1000 °C

6. Fabrication and Welding: The alloy is readily fabricated and welded, with good workability

7. Applications: It is used in aerospace fasteners, gas turbine engines, industrial furnaces, and nuclear engineering

This alloy's combination of properties makes it ideal for demanding environments where both high temperatures and corrosion resistance are required.

Applications:

• Electrocatalysts for Oxygen Evolution Reaction (OER): NiFe alloys, including NF15, have been identified as highly active, non-precious, cost-effective, and high-performance redox metal catalysts for OERs in electrochemical water splitting for hydrogen production

  
  

• Catalysts for Hydrazine Electrooxidation (HzOR): Ni-Fe alloys have been used as highly active catalysts for the complete electrooxidation of hydrazine, demonstrating good stability and selectivity

  
  

• Proton Exchange Membrane Fuel Cells (PEMFCs): Ni-based alloys are considered for use in PEMFCs due to their significant energy conversion efficiency and environmental friendliness. They are used in constructing stable and active catalysts for cathodic oxygen reduction reaction (ORR) applications

  
  

• High-Temperature Applications: Ni-based superalloys, like NF15, exhibit excellent mechanical strength and creep resistance at elevated temperatures, making them suitable for high-temperature applications such as space components, turbine engine blades and vanes, rocket engines, submarines, nuclear reactors, and chemical processing vessels

  
  

• Thermal Protection Systems: These alloys are used in sheet form as front panels for thermal protection systems, particularly in aerospace applications

  
  

• Industrial Gas Turbines: Ni-based superalloys are used in industrial gas turbines for peaking electrical power generation, requiring materials that can withstand long periods of service

  
  

These applications highlight the versatility and importance of PTC Ni-Fe Alloy NF15 in various industries, particularly where high temperatures, corrosion resistance, and mechanical strength are critical.

Support and Services:

1. Technical Consultation

2. Product Selection

3. Time Guarantee

4. Warranty and After-Sales Support

Q&A:

1. What is the minimum order quantity?

The MOQ is 5kg, but if you need samples, please contact us.

2. How to choose products with different diameters and resistivity

We have product experts who are familiar with the use of the scenario to help determine the product, you can send email or contact us via chat software.

3. Can you only produce products with such resistivity or temperature coefficient?

We can customize products according to the actual needs of customers, if there is any need, please inform us.

Company Overview:

Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and preci.sion of our products. We have the tightest tolerances and deliver within a few days to a fewweeks. As a result, we have become the leading alloy wire supplier in the industry.

Senphus Subsidiaries:

• Jiangyin Chengxin Alloy Material Co., Ltd.
• Jiangyin Senphus Electrical Materials Co., Ltd.
• Jiangsu Xiangcheng Supply Chain Management Co., Ltd.

Jiangyin Chengxin Alloy Material Co., Ltd.: With nearly 20 years of experience, Jiangyin Chengxin is a leading alloy wire manufacturer in China. We offer a wide range of services, from fine wire drawing to resistance wire manufacturing. Our specialty lies in the quality and precision of our products, achieving the tightest tolerances and delivering orders within days to weeks. As a result, we have established ourselves as the premier supplier of alloy wire in the industry.

Our product range includes:

• Copper-nickel alloys (CuNi1-CuNi44)
• Karma (Nikrothal L/Evanohm/Alloy 800)
• Manganin and Constantan
• Nickel-chromium alloys
• Thermocouple alloys (Type K, N, E, T, J)
• Thermocouple extension wire
• PTC thermistor resistance alloy
• Pure nickel wire and Monel alloy

These alloys are available in various forms, including wire, ribbon, stranded, and enamelled. Major applications include seat heating, underfloor heating, military projects, aerospace, household appliances, heating wire, mechanical and electrical plants, and temperature instruments. Our manufacturing processes are ISO 9001:2015 certified, and we specialize in fine and ultra-fine wire drawing, offering wire diameters from 0.025 mm (0.001") to 13 mm (0.51") in small batches, medium volumes, and mass production. We maintain a comprehensive quality inspection system, including in-house chemical analysis, chromatographic analysis, metallurgical analysis, pinhole tests, wire construction tests, and tension tests to ensure the highest quality standards.

Senphus Electrical Material Co., Ltd.: Founded in 2003, Senphus Electrical Material Co., Ltd. integrates research, manufacturing, and sales of electric heating alloys, heating cables, heating wires, and heating products. Leveraging over a decade of technical expertise in heating alloy wire, we have adopted advanced heating cable technology and machinery, successfully developing heating cables, temperature controllers, and temperature control systems suitable for building heating, pipe insulation, outdoor snow melting, wind power blade production, car seat heating, and healthcare applications.

The company is recognized as a high-tech enterprise in Jiangsu Province and a small giant enterprise in Jiangyin City, specializing in innovative technologies. We operate the "Wuxi Heating Cable Engineering Technology Research Center" and collaborate with experts from renowned domestic universities. Our portfolio includes 5 invention patents and over 30 utility model patents, showcasing our strong research and development capabilities.

With an annual output exceeding 1,000 tons of thermal alloy wire and an output value of approximately 105 million yuan, our products are well-received in markets such as the UK, Italy, Canada, Peru, and Spain. Our heating cables generate an annual output value of over 80 million yuan, with exports to Germany, Japan, the United States, Malaysia, Denmark, Brazil, and other countries.

The company has successfully passed multiple quality management system certifications, including IATF 16949, ISO 9001, ISO 14001 (Environmental Management System), and ISO 45001 (Occupational Health and Safety Management System). Our heating cables and related products have also obtained test reports from the Shanghai Cable Research Institute Test Center and received certifications such as UL (United States), VDE (Germany), CE (European Union), and RoHS.

Commitment to Quality: We adhere to the business commitment of "Reputation First, Quality First, Customer First" and uphold the quality policy of "Integrity-Based, Quality-Oriented, Excellent Service." We are dedicated to providing accurate products and professional services, and we look forward to collaborating sincerely with you to achieve mutual success.