NiCrSi-NiSiMg Type N Thermocouple Extension Wire Superior Oxidation Resistance for Accurate Readings

NiCrSi-NiSiMg Type N Thermocouple Compensation and Extension Wire is engineered to ensure accurate temperature measurements by extending the reach of Type N thermocouples. This wire is composed of a positive leg made of nickel-chromium-silicon (NiCrSi) and a negative leg made of nickel-silicon-magnesium (NiSiMg), offering a wide operating temperature range from -200°C to 1300°C.

Key features include superior oxidation resistance due to the protective diffusion barrier formed by chromium and silicon in the positive leg and silicon and magnesium in the negative leg. This wire provides improved repeatability, especially in the 300°C to 500°C range, and exhibits magnetic stability, which is crucial for accurate temperature measurement.

Type N Extension Wire is used in various industrial applications, including furnaces, boilers, chemical processing equipment, power plants, automotive, and aerospace engines. It is manufactured to meet international standards, ensuring quality and reliability. The extension wire is designed to match the thermoelectric properties of the thermocouple, maintaining the accuracy of the temperature signal transmitted to the measuring or control device. These properties make Type N Compensation and Extension Wire a preferred choice for precise temperature measurement and control in demanding industrial environments.

Thermocouple temperature range and tolerance

Some key features of NiCrSi-NiSiMg Type N Thermocouple Compensating & Extension Wire include:

• Wider Temperature Range: Capable of withstanding a broad temperature range from -200°C to 1300°C, suitable for extreme environments.
• Oxidation Resistance: The high chromium content in the NiCrSi positive wire and the silicon and magnesium in the NiSiMg negative wire provide excellent resistance to oxidation.
• Improved Repeatability: Offers better repeatability in the 300°C to 500°C range compared to other types of thermocouples, ensuring more consistent temperature readings.
• Magnetic Stability: The composition of the wire contributes to its stability in magnetic fields, which is important for accurate temperature measurement.
• Longevity: The wire's composition and construction contribute to a longer operational life, with reduced EMF drift and short-term EMF changes.
• Resistance to Transmutation: The absence of certain elements like manganese, aluminium, and copper in the NN conductor makes it more stable against nuclear bombardment.
• Matching Thermoelectric Properties: The compensating and extension wires are designed to match the thermoelectric properties of the thermocouple over a certain temperature range, typically from -25°C to 200°C.
• Standard Compliance: Manufactured to comply with international standards, ensuring reliability and consistency in performance.
• Versatile Applications: Suitable for use in a variety of industries, including automotive, aerospace, chemical, and power generation, where precise temperature measurement is critical.
• Cost-Effectiveness: Often more cost-effective than noble metal thermocouples, making it a popular choice for many applications.

Applications:

• Industrial Processes: It is used in various industrial processes that require precise temperature monitoring, such as in furnaces, kilns, and ovens.
• Chemical and Petrochemical Industries: The wire's resistance to oxidation makes it suitable for use in chemical and petrochemical plants where it can withstand harsh environments.
• Power Generation: Type N thermocouples are utilized in power plants for temperature measurement in steam turbines and other critical components.
• Automotive and Aerospace: They are installed in engines for temperature monitoring to protect against overheating and to optimize performance.
• Food Processing: The wire is used in food processing equipment that demands precise temperature control, such as ovens and freezers.
• Temperature Range: It can operate within a broad temperature range of -200°C to 1300°C, making it suitable for extreme temperature environments.
• Oxidation Resistance: The wire offers superior oxidation resistance due to the combination of higher levels of chromium and silicon in the positive Nicrosil conductor.
• Improved Repeatability: Type N thermocouples show much improved repeatability in the 300°C to 500°C range, where other types like Type K may exhibit instability.
• Magnetic Stability: The high levels of chromium in the NP conductor and silicon in the NN conductor provide improved magnetic stability.
• Longevity: Type N thermocouples have a longer operational life than Type K thermocouples, with reduced EMF drift and short-term EMF changes.
• Resistance to Transmutation: The absence of manganese, aluminium, and copper in the NN conductor makes Type N thermocouples more stable against nuclear bombardment, virtually eliminating the risk of transmutation.

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.