NiCr-CuNi Type E Constantan Thermocouple Extension Wire for Precise Temperature Measurements

NiCr-CuNi Type E Constantan Thermocouple Extension Wire is known for its high sensitivity and accuracy, particularly in moderate temperature ranges.The positive leg (EP) is made of Ni: Cr ≈ 90:10, while the negative leg (EN) is composed of Cu: Ni ≈ 55%: 45% .Type E thermocouples have a working temperature range of -200°C to 900°C for short-term use and 0°C to 750°C for long-term use. Type E thermocouples have the largest EMF output and highest sensitivity among common types, making them ideal for measuring small temperature changes.They exhibit good stability up to 300°C and possess anti-corrosion properties in humid atmospheres .Atmospheric Conditions: Recommended for use in oxidizing or inert atmospheres, but not suitable for reducing atmospheres or those containing sulfur gases.The positive leg (EP) has a density of 8.5 g/cm³, a melting point of 1427°C, a tensile strength of ≥490 Mpa, and a resistivity of 0.71 μΩ·m. The negative leg (EN) has a density of 8.5 g/cm³, a melting point of 1220°C, a tensile strength of ≥390 Mpa, and a resistivity of 0.50 μΩ·m.Type E thermocouples are used in heating systems like gas burners for ovens, cooling systems such as freezers, engine protection for monitoring temperatures and surface temperatures, and high-temperature control in iron casting . They are also used in scientific laboratories and precision instrumentation due to their high sensitivity and accuracy.This summary encapsulates the essential characteristics and applications of NiCr-CuNi Type E Constantan Thermocouple Extension Wire, highlighting its suitability for a range of industrial and scientific temperature measurement needs.

Color codes of thermocouple ( E type )

Type E thermocouple has the largest EMF output and highest sensitivity, so it is ideal for measuring small temperature change. It also has good stability in the low temperature range up to 300 ℃ , and good property of anti-corrosion in humidity atmosphere. It is recommended for oxidizing or inert atmospheres, but cannot be used directly in reducing atmosphere and atmosphere with sulphur gases.

Thermocouple temperature range and tolerance

Compensating wire reciprocating resistance

Key Features of NiCr-CuNi (Type E) Constantan Thermocouple Compensating&Extension Wire include:

• Chemical Composition: The positive leg (EP) is made of Ni: Cr ≈ 90:10, and the negative leg (EN) is composed of Cu: Ni ≈ 55%: 45%.
• Temperature Range: Type E thermocouples operate in a temperature range of -200°C to 900°C for short-term use and 0°C to 750°C for long-term use.
• EMF Output and Sensitivity: Type E thermocouples have the largest EMF output and highest sensitivity among common types, making them ideal for measuring small temperature changes.
• Stability and Corrosion Resistance: They exhibit good stability up to 300°C and possess anti-corrosion properties in humid atmospheres.
• Atmospheric Conditions: Recommended for use in oxidizing or inert atmospheres, but not suitable for reducing atmospheres or those containing sulfur gases.
• Physical Properties: The positive leg (EP) has a density of 8.5 g/cm³, a melting point of 1427°C, a tensile strength of ≥490 Mpa, and a resistivity of 0.71 μΩ·m. The negative leg (EN) has a density of 8.5 g/cm³, a melting point of 1220°C, a tensile strength of ≥390 Mpa, and a resistivity of 0.50 μΩ·m.
• Applications: Type E thermocouples are used in heating systems like gas burners for ovens, cooling systems such as freezers, engine protection for monitoring temperatures and surface temperatures, and high-temperature control in iron casting.
• Construction: The wire construction includes two cores stranded together, with a sheath material of Besilen® EM9 and braided with fiber-glass with a tracer. The conductor cross-section is 0.22 mm², and the outer diameter is approximately 3.4 mm.
• Technical Data: The minimum bending radius is 7.5 times the diameter, and the temperature range of insulation is fixed laying from -40°C to +180°C, flexible application from -25°C to +180°C, and short-term use up to +250°C. The cable is halogen-free, flame retardant, self-extinguishing, and complies with the RoHS directive of the European Union.

Applications:

• Heating Systems: Gas burners for ovens, where Type E thermocouples are used to measure and control high temperatures.
• Cooling Systems: Freezers, where they are used for temperature monitoring and control.
• Engine Protection: Monitoring temperatures and surface temperatures to ensure engine safety and performance.
• High-Temperature Control: Iron casting processes, where Type E thermocouples are used for precise temperature control.
• Scientific Laboratories: Due to their high sensitivity and accuracy, Type E thermocouples are often used in scientific labs for precision temperature measurement.
• Precision Instrumentation: They are ideal for low-temperature applications such as cryogenics where small temperature changes need to be detected accurately.

These applications highlight the versatility of Type E thermocouples in both high-temperature industrial processes and precise scientific measurements.

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.