NiCrSi-NiSiMg Type N Thermocouple Wire Wide Temperature Range and Excellent Long-Term Performance

NiCrSi-NiSiMg Type N Thermocouple Wire is a high-precision, high-stability thermocouple, particularly well-suited for high-temperature, oxidizing, and corrosive environments. With a wide temperature range, excellent resistance to oxidation and sulfur, and minimal drift over time, it is ideal for demanding industrial applications such as gas turbines, aerospace, metal processing, and high-temperature scientific research. Despite being more expensive than other thermocouple types, its superior performance and longevity make it a worthwhile investment in extreme temperature conditions.

Thermocouple temperature range and tolerance

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

• Wide Temperature Range

-200°C to 1300°C (-328°F to 2372°F).

Type N thermocouples are ideal for high-temperature measurements and can operate reliably at temperatures higher than other common thermocouple types like Type K or Type J.

• Excellent Accuracy

Type N provides high accuracy and stability with a thermoelectric voltage that delivers a precise measurement. The tolerance is typically ±0.25°C in the lower temperature range and ±0.75% in the high-temperature range.

• Material Composition

Positive Leg (NiCrSi): A nickel-chromium-silicon alloy that provides improved resistance to oxidation at high temperatures, especially in oxidative or corrosive environments.

Negative Leg (NiSiMg): A nickel-silicon-magnesium alloy that enhances resistance to oxidation and improves thermoelectric stability at high temperatures.

• Thermoelectric Properties

Type N has a low temperature coefficient and delivers stable voltage output over a broad temperature range, making it suitable for precision temperature measurements.

• Superior Oxidation Resistance

Both the NiCrSi and NiSiMg alloys are highly resistant to oxidation, even at elevated temperatures, making Type N thermocouples ideal for use in harsh or highly oxidative environments such as furnaces, gas turbines, and high-temperature industrial processes.

• Stable Long-Term Performance

Exceptional long-term stability: Type N thermocouples offer superior stability over extended periods compared to other thermocouple types, especially in high-temperature applications.

Minimal drift: Type N is less prone to drift and degradation over time, which enhances reliability and reduces maintenance costs.

• Non-Magnetic

Type N thermocouples are non-magnetic, making them suitable for applications where magnetism can interfere with processes or measurements.

• Resistance to Sulfur

Excellent performance in sulfur-rich environments, which often cause rapid degradation in other thermocouple types like Type K or Type J.

Applications

• High-Temperature Processing: Ideal for use in furnaces, kilns, and other high-temperature industrial applications.
• Aerospace & Gas Turbines: Perfect for measuring temperatures in turbines, jet engines, and other aerospace components exposed to extreme heat.
• Research & Scientific Applications: Provides accurate temperature measurement for high-temperature scientific experiments.
• Metallurgical & Chemical Industries: Suitable for environments with oxidizing atmospheres, such as metal processing and chemical manufacturing.

Cable Options

• Available in bare wire, insulated wire, or cable forms, with insulation materials such as fiberglass, ceramic, and Teflon.
• Shielded cables are available for environments with electrical noise or electromagnetic interference.

Advantages of Type N Thermocouple Wire:

• High Accuracy and Stability: Type N offers exceptional accuracy and long-term stability, making it suitable for precision measurements in high-temperature applications.
• Resistance to Oxidation: The unique alloy composition ensures resistance to oxidation and corrosion, especially in high-temperature and oxidative environments.
• Wide Temperature Range: Operates reliably in temperatures up to 1300°C, suitable for high-temperature industrial applications.
• Minimal Drift: It experiences minimal drift over time, improving the consistency and reliability of temperature measurements.
• Non-Magnetic Properties: Non-magnetic characteristics make it suitable for use in sensitive applications, such as aerospace and electronics.
• Sulfur Resistance: Resistant to sulfur, which can degrade other thermocouple types.

Limitations:

• Cost: Type N thermocouples are typically more expensive than other common thermocouples (like Type K), due to their special alloy composition and higher performance characteristics.
• Specialized Application: While ideal for high-temperature and oxidative environments, they may be over-engineered for applications that do not require such extremes, leading to higher costs.

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.