NiCr-CuNi Type E Thermocouple Wire for Accurate Temperature Measurement in Cryogenic Environments

NiCr-CuNi Type E Constantan Thermocouple Wire is a thermocouple material composed of a positive leg made of Nickel-Chromium alloy (NiCr) and a negative leg made of Copper-Nickel alloy (CuNi), commonly known as Constantan. Type E thermocouples are known for their high accuracy, excellent sensitivity, and suitability for low to moderate temperature ranges.

NiCr-CuNi Type E Constantan Thermocouple Wire is a high-sensitivity, precise thermocouple material ideal for low-to-moderate temperature measurements. Its excellent accuracy, corrosion resistance, and high thermoelectric voltage make it a preferred choice for industries requiring precise and reliable temperature monitoring in oxidizing or neutral environments.

Color codes of thermocouple ( E type )

Key Features of NiCr-CuNi Type E Thermocouple Wire:

• High Sensitivity

Produces the highest thermoelectric voltage of all common thermocouple types, approximately 68 µV/°C at 0°C, ensuring accurate temperature readings.

• Wide Temperature Range

Effective for temperature measurements between -200°C to 900°C (-328°F to 1652°F), making it suitable for various applications.

• Excellent Accuracy

Type E thermocouples have a standard tolerance of ±1.7°C or ±0.5% of the measured temperature, ensuring precision in temperature monitoring.

• Corrosion Resistance

NiCr-CuNi thermocouples exhibit good resistance to oxidation and corrosion, especially in environments with low oxygen levels.

Performs well in both oxidizing and inert atmospheres.

• Material Composition

Positive Leg (NiCr): Typically 90% Nickel and 10% Chromium.

Negative Leg (CuNi/Constantan): Approximately 55% Copper and 45% Nickel.

• Electrical Properties

High Seebeck coefficient provides excellent signal output for low-temperature measurements.

• Applications

Ideal for cryogenic and low-temperature applications due to its high sensitivity.

Commonly used in industries like aerospace, medical equipment, and research laboratories for precise temperature monitoring.

Also suitable for high-accuracy measurements in oxidizing or neutral environments.

• Cable Options

Available as bare wire, insulated wire, or cables with various insulation materials such as fiberglass, Teflon, or ceramic.

Can be shielded or unshielded depending on application requirements.

Advantages of Type E Thermocouple Wire:

• High sensitivity allows for accurate readings in low-temperature ranges.
• Performs well in oxidizing and low-oxygen environments.
• Does not contain iron, making it resistant to corrosion from oxidizing atmospheres.

Limitations:

• Not recommended for use in reducing or sulfur-containing environments.
• Limited temperature range compared to other types, such as Type K.

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.