Shanghai Tankii Alloy Material Co.,Ltd

.gtr-container-x7y2z9 { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 15px; max-width: 100%; box-sizing: border-box; } .gtr-container-x7y2z9 .gtr-heading-1 { font-size: 18px; font-weight: bold; margin-bottom: 15px; color: #0056b3; text-align: left; } .gtr-container-x7y2z9 .gtr-heading-2 { font-size: 16px; font-weight: bold; margin-top: 20px; margin-bottom: 10px; color: #0056b3; text-align: left; } .gtr-container-x7y2z9 p { font-size: 14px; margin-bottom: 1em; text-align: left !important; } .gtr-container-x7y2z9 a { color: #007bff; text-decoration: underline; } .gtr-container-x7y2z9 a:hover { color: #0056b3; text-decoration: none; } @media (min-width: 768px) { .gtr-container-x7y2z9 { padding: 25px; max-width: 800px; margin: 0 auto; } .gtr-container-x7y2z9 .gtr-heading-1 { font-size: 20px; margin-bottom: 20px; } .gtr-container-x7y2z9 .gtr-heading-2 { font-size: 18px; margin-top: 25px; margin-bottom: 12px; } } Identifying Positive and Negative Wires on a Thermocouple When working with thermocouples, accurately identifying the positive and negative wires is crucial for proper operation and reliable temperature measurement. So, which wire is positive and negative on a thermocouple? Here are several common methods to distinguish them. 1. Color-Coding Firstly, many thermocouples are color-coded. This color-coding system is a quick visual reference, but it's essential to approach it with caution. For example, in type K thermocouples, which are among the most widely used thermocouples due to their relatively wide temperature range and good stability, the positive wire is usually made of chromel and is often colored yellow, while the negative wire, made of alumel, is typically red. However, color-coding standards may vary in different regions or according to different manufacturers. In some non-standard or older installations, the colors might not follow the typical convention. Therefore, don't rely solely on color for identification; it should be used as an initial guide. 2. Wire Materials Another reliable way is to check the wire materials. Different types of thermocouples are composed of different metal alloys, and each type has a defined positive and negative wire based on these materials. For instance, in type J thermocouples, the positive wire is made of iron, known for its good response in certain temperature ranges, and the negative wire is constantan, which offers excellent stability and compatibility with iron. By referring to the official thermocouple type specifications, which detail the exact composition and polarity of each type, users can determine the correct polarities with greater certainty. Additionally, some advanced thermocouples come with datasheets that not only list the materials but also provide additional information about the expected electrical characteristics related to the positive and negative wires. Our Company’s Thermocouple Wire Products Our company’s thermocouple wire products offer distinct advantages in this regard. We clearly mark the positive and negative wires on all our products, not only through standardized color-coding but also with clear labels. The labels are printed using high-quality, durable ink that won't fade or wear off easily, even in harsh industrial environments. This dual-identification system ensures that users can quickly and accurately identify the wires, saving time and reducing the risk of incorrect connections. Moreover, our thermocouple wires are made from high-quality metal alloys with excellent thermal stability and durability. The manufacturing process involves strict quality control at every stage, from the selection of raw materials to the final packaging. Whether it's for high-temperature industrial applications, such as steel manufacturing where temperatures can reach extremely high levels, or precise scientific experiments that demand minute accuracy, our products can maintain stable performance and accurate measurement results. We also conduct rigorous testing on each batch of thermocouple wires, including tests for electrical conductivity, thermal emf stability, and mechanical strength. With these strict quality control processes, we guarantee that the positive and negative wires in our thermocouple products meet the highest industry standards, providing you with a reliable solution for temperature measurement. Conclusion In conclusion, while there are multiple ways to identify the positive and negative wires of a thermocouple, choosing our high-quality thermocouple wire products simplifies the process and ensures accurate and stable temperature measurement. Our commitment to quality and user-friendly design makes us the ideal choice for all your thermocouple wire needs.

.gtr-container-7f8e9d0c { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 15px; box-sizing: border-box; max-width: 100%; overflow-x: hidden; } .gtr-container-7f8e9d0c p { margin-bottom: 1em; text-align: left !important; font-size: 14px; line-height: 1.6; } .gtr-container-7f8e9d0c .gtr-table-wrapper { width: 100%; overflow-x: auto; margin-top: 20px; margin-bottom: 20px; } .gtr-container-7f8e9d0c table { width: 100%; border-collapse: collapse !important; border-spacing: 0 !important; margin: 0; padding: 0; min-width: 600px; } .gtr-container-7f8e9d0c th, .gtr-container-7f8e9d0c td { border: 1px solid #ccc !important; padding: 10px !important; text-align: left !important; vertical-align: top !important; font-size: 14px; word-break: normal; overflow-wrap: normal; } .gtr-container-7f8e9d0c th { font-weight: bold !important; background-color: #f0f0f0; color: #333; } .gtr-container-7f8e9d0c tr:nth-child(even) { background-color: #f9f9f9; } .gtr-container-7f8e9d0c img { max-width: 100%; height: auto; display: block; margin: 20px auto; } @media (min-width: 768px) { .gtr-container-7f8e9d0c { padding: 25px; } .gtr-container-7f8e9d0c table { min-width: auto; } .gtr-container-7f8e9d0c .gtr-table-wrapper { overflow-x: visible; } } In the golden month of October, filled with the sweet fragrance of osmanthus, we celebrate the 76th anniversary of the founding of the People's Republic of China in 2025. Amid this nationwide celebration, Tankii Alloys joins hands with the Chinese people to pay tribute to our great motherland. With unwavering dedication and craftsmanship in the alloy sector, we are solidifying the foundation for the motherland's journey toward becoming a strong industrial nation through precise and reliable alloy products. As an enterprise specializing in the R&D and production of high-quality alloys, Tankii Alloys has always recognized that alloy materials are the "backbone" of industrial manufacturing and a core pillar for the development of key fields such as high-end equipment, energy and power, and aerospace. From copper-nickel alloys with stable performance to heat-resistant iron-chromium-aluminum alloys, from thermocouple alloys with accurate temperature measurement to high-purity nickel materials, every product embodies the Tankii team's pursuit of ultimate precision and strict quality control. We firmly believe that only "precision" alloys can support "sophisticated" manufacturing, and only "reliable" materials can ensure the safe operation of national strategic assets such as heavy-duty equipment and energy facilities. To clearly demonstrate how Tankii Alloys' products empower key national sectors, the following table outlines the core products and their application scenarios: Product Type Core Characteristics Empowered National Strategic Fields Copper-Nickel Alloy Corrosion resistance, stable electrical & thermal conductivity Marine engineering, power transmission equipment Iron-Chromium-Aluminum Alloy High temperature resistance, oxidation resistance, high mechanical strength Industrial heating devices, new energy equipment Nickel-Chromium Alloy Excellent high-temperature strength, good creep resistance Aerospace components, power generation equipment Thermocouple Alloy High temperature measurement accuracy, stable thermoelectric potential Industrial temperature control systems, high-end instruments Pure Nickel High purity, strong ductility, chemical corrosion resistance Battery materials, electronic components, medical equipment Iron-Nickel Alloy Outstanding magnetic properties, high magnetic permeability Precision sensors, communication equipment Over the past 76 years, China has achieved leapfrog development in the industrial sector—moving from "catching up" to "surpassing" others. Behind this achievement lies the silent contribution of countless enterprises like Tankii Alloys. In the power industry, our nickel-chromium alloys provide stable high-temperature-resistant components for power generation equipment, ensuring continuous and efficient energy supply. In the field of high-end manufacturing, our iron-nickel alloys, with their excellent magnetic properties, support the R&D and production of precision instruments. In temperature monitoring, our thermocouple alloys guarantee industrial safety with their accurate sensing performance. Every order and every batch of products represents Tankii Alloys' practical commitment to "forging the foundation of a strong nation," integrating the company's development into the broader wave of national construction. On this National Day, Tankii Alloys not only extends its best wishes to the great motherland but also pledges to deepen innovation in alloy technology with a stronger sense of responsibility and mission. In the future, we will continue to increase R&D investment, overcome more technical challenges in the alloy material field, and launch products that better meet national strategic needs. We aim to make "Tankii Manufacturing" a premium brand in China's alloy industry and inject greater momentum into the motherland's dream of becoming a strong industrial nation. With magnificent landscapes and a glorious history, Tankii Alloys is committed to growing in step with the motherland. Taking precision alloys as our "brush" and craftsmanship as our "ink," we will write the sense of responsibility and glory of Chinese enterprises on the canvas of the new era, and jointly witness an even more brilliant future for our motherland!

.gtr-container-7f8e9d { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 15px; max-width: 900px; margin: 0 auto; box-sizing: border-box; } .gtr-container-7f8e9d p { font-size: 14px; margin-bottom: 1em; text-align: left !important; word-break: normal; overflow-wrap: normal; } .gtr-container-7f8e9d .gtr-main-heading { font-size: 18px; font-weight: bold; margin-top: 1.5em; margin-bottom: 1em; color: #0056b3; text-align: left; } .gtr-container-7f8e9d .gtr-sub-heading { font-size: 16px; font-weight: bold; margin-top: 1.2em; margin-bottom: 0.8em; color: #007bff; text-align: left; } .gtr-container-7f8e9d ul { list-style: none !important; margin: 0 0 1em 0 !important; padding: 0 !important; } .gtr-container-7f8e9d ul li { position: relative; padding-left: 25px; margin-bottom: 0.5em; font-size: 14px; text-align: left; } .gtr-container-7f8e9d ul li::before { content: "•"; position: absolute; left: 0; color: #007bff; font-weight: bold; font-size: 16px; line-height: 1.6; } .gtr-container-7f8e9d ul ul { margin-top: 0.5em !important; margin-bottom: 0.5em !important; } .gtr-container-7f8e9d ul ul li { padding-left: 40px; } .gtr-container-7f8e9d ul ul li::before { content: "–"; color: #555; font-size: 14px; left: 15px; } .gtr-container-7f8e9d ol { list-style: none !important; margin: 0 0 1em 0 !important; padding: 0 !important; } .gtr-container-7f8e9d ol li { position: relative; padding-left: 30px; margin-bottom: 0.5em; font-size: 14px; text-align: left; } .gtr-container-7f8e9d ol li::before { content: counter(list-item) "."; position: absolute; left: 0; color: #007bff; font-weight: bold; font-size: 14px; width: 20px; text-align: right; line-height: 1.6; counter-increment: none; } .gtr-container-7f8e9d .gtr-highlight { font-weight: bold; color: #0056b3; } .gtr-container-7f8e9d .gtr-contact-link { color: #007bff; text-decoration: none; font-weight: bold; } .gtr-container-7f8e9d .gtr-contact-link:hover { text-decoration: underline; } @media (min-width: 768px) { .gtr-container-7f8e9d { padding: 20px 30px; } .gtr-container-7f8e9d .gtr-main-heading { font-size: 20px; } .gtr-container-7f8e9d .gtr-sub-heading { font-size: 18px; } } Thermocouples are among the most widely used temperature sensors across industries such as manufacturing, HVAC, automotive, aerospace, and food processing. A common question from engineers and technicians is: Do thermocouples require special wire? The answer is a resounding yes—thermocouples must be connected with the correct type of wire to ensure accurate and reliable temperature measurements. Why Thermocouples Need Special Wire Thermocouples operate based on the Seebeck effect, where two dissimilar metals generate a small voltage (in millivolts) proportional to the temperature difference between the measurement junction (hot end) and the reference junction (cold end). This voltage is extremely sensitive, and any deviation in wire composition can introduce errors. Key Reasons Why Standard Electrical Wire Won’t Work Material Compatibility Thermocouples are made from specific metal pairs (e.g., Type K uses Chromel and Alumel, Type J uses Iron and Constantan). Using ordinary copper wire would disrupt the thermoelectric circuit, leading to incorrect readings. Temperature Resistance Thermocouples often operate in extreme temperatures (from -200°C to over 2300°C, depending on type). Standard wires may oxidize, degrade, or melt under high heat, causing signal drift or failure. Signal Integrity & Noise Resistance Thermocouple signals are in the millivolt range, making them susceptible to electromagnetic interference (EMI). Proper thermocouple wire includes shielding (e.g., braided or foil shielding) to prevent noise from distorting readings. Calibration Accuracy Each thermocouple type (J, K, T, E, etc.) has a standardized voltage-temperature curve. Using mismatched wire alters this relationship, leading to calibration errors and unreliable data. Types of Thermocouple Wire There are two main categories of thermocouple wire: Extension Wire - Made of the same alloys as the thermocouple itself (e.g., Type K extension wire uses Chromel and Alumel). - Used to extend the thermocouple signal over long distances without introducing errors. - Typically used in moderate-temperature environments (since high heat can still affect the insulation). Compensating Wire - Made from different but thermoelectrically similar materials (often less expensive than pure thermocouple alloys). - Designed to match the thermocouple’s output at lower temperatures (usually below 200°C). - Commonly used in control panels and instrumentation where extreme heat is not a factor. Both types must comply with industry standards (ANSI/ASTM, IEC) to ensure consistency and performance. Choosing the Right Thermocouple Wire When selecting thermocouple wire, consider: Thermocouple Type (K, J, T, E, etc.) – Must match the sensor type. Temperature Range – Ensure the wire can handle the expected operating conditions. Insulation Material – Fiberglass, PTFE, or ceramic insulation for high-heat applications. Shielding Requirements – Braided or foil shielding for EMI protection in industrial environments. Flexibility & Durability – Stranded wire for tight bends, solid core for fixed installations. Our High-Quality Thermocouple Wire Solutions At Tankii, we provide premium thermocouple wire designed for precision, durability, and reliability. Our product offerings include: Multiple Thermocouple Types (K, J, T, E, N, R, S, B) – Compatible with all major thermocouple standards. High-Temperature & Corrosion-Resistant Options – Ideal for harsh industrial environments. Shielded & Insulated Variants – Minimize signal interference for accurate readings. Custom Lengths & Configurations – Tailored to your specific application needs. Thermocouples must be connected with the correct wire to function properly. Using standard electrical wire can lead to measurement errors, signal loss, or even sensor failure. By selecting the right thermocouple wire—whether extension or compensating—you ensure long-term accuracy, stability, and performance in your temperature monitoring systems. For expert guidance and high-quality thermocouple wire solutions, contact us today or browse our product catalog to find the perfect match for your application!

.gtr-container-7f8g9h { font-family: Verdana, Helvetica, "Times New Roman", Arial, sans-serif; color: #333; line-height: 1.6; padding: 15px; max-width: 900px; margin: 0 auto; box-sizing: border-box; } .gtr-container-7f8g9h p { font-size: 14px; margin-bottom: 1em; text-align: left; } .gtr-container-7f8g9h strong { font-weight: bold; } .gtr-container-7f8g9h .gtr-heading { font-size: 18px; font-weight: bold; margin-top: 1.5em; margin-bottom: 1em; color: #0056b3; text-align: left; } .gtr-container-7f8g9h .gtr-sub-heading { font-size: 16px; font-weight: bold; margin-top: 1em; margin-bottom: 0.5em; color: #0056b3; text-align: left; } .gtr-container-7f8g9h ul, .gtr-container-7f8g9h ol { list-style: none !important; margin: 0 0 1em 0 !important; padding: 0 !important; } .gtr-container-7f8g9h ul li, .gtr-container-7f8g9h ol li { position: relative; padding-left: 25px; margin-bottom: 0.5em; font-size: 14px; text-align: left; } .gtr-container-7f8g9h ul li::before { content: "2022"; color: #0056b3; font-weight: bold; display: inline-block; width: 15px; position: absolute; left: 0; top: 0; text-align: center; } .gtr-container-7f8g9h ol li::before { content: counter(list-item) "."; counter-increment: none; color: #0056b3; font-weight: bold; display: inline-block; width: 20px; position: absolute; left: 0; top: 0; text-align: right; } .gtr-container-7f8g9h .gtr-checklist li::before { content: "2713"; color: #28a745; font-weight: bold; display: inline-block; width: 15px; position: absolute; left: 0; top: 0; text-align: center; } .gtr-container-7f8g9h .gtr-contact-link { color: #0056b3; text-decoration: none; font-weight: bold; } .gtr-container-7f8g9h .gtr-contact-link:hover { text-decoration: underline; } @media (min-width: 768px) { .gtr-container-7f8g9h { padding: 25px; } } Thermocouple wires are essential components in temperature measurement systems, widely used across industries such as manufacturing, HVAC, automotive, aerospace, and scientific research. At Tankii, we specialize in producing high-performance thermocouple wires designed for precision, durability, and reliability in even the most demanding environments. How Does a Thermocouple Wire Work? A thermocouple consists of two dissimilar metal wires joined at one end (the "hot" or measuring junction). When this junction is exposed to heat, it generates a small voltage due to the Seebeck effect—a phenomenon where temperature differences between two connected metals produce an electrical potential. This voltage is measured at the other end (the "cold" or reference junction) and converted into a temperature reading. The key advantage of thermocouples is their ability to measure a wide range of temperatures, from cryogenic conditions up to extreme heat, depending on the wire type. Types of Thermocouple Wires We Offer We provide a complete selection of thermocouple wires to suit various industrial and commercial needs: Type K Thermocouple Wire (Nickel-Chromium / Nickel-Alumel) Temperature Range: -200°C to 1260°C (-328°F to 2300°F) Applications: General-purpose industrial use, furnaces, chemical processing Advantages: Wide temperature range, good accuracy, and oxidation resistance Type J Thermocouple Wire (Iron / Constantan) Temperature Range: 0°C to 760°C (32°F to 1400°F) Applications: Food processing, plastic injection molding, vacuum environments Advantages: High sensitivity, cost-effective for moderate temperatures Type T Thermocouple Wire (Copper / Constantan) Temperature Range: -200°C to 370°C (-328°F to 700°F) Applications: Cryogenics, medical equipment, laboratory testing Advantages: Excellent stability at low temperatures, moisture-resistant Type E Thermocouple Wire (Nickel-Chromium / Constantan) Temperature Range: -200°C to 900°C (-328°F to 1652°F) Applications: Power plants, pharmaceutical manufacturing Advantages: Highest output signal among standard thermocouples High-Temperature Specialty Wires (Type R, S, B, and Custom Alloys) For extreme environments such as aerospace, metallurgy, and semiconductor manufacturing Key Features of Our Thermocouple Wires High Accuracy & Consistency – Manufactured to meet ANSI, ASTM, IEC, and NIST standards Durable Insulation Options – Available in fiberglass, PTFE, ceramic, and metal sheathing for harsh conditions Flexible & Customizable – Different gauges, lengths, and shielding materials to fit specific applications Long-Term Reliability – Resistant to oxidation, vibration, and thermal cycling Fast Response Time – Ensures real-time temperature monitoring Common Applications of Thermocouple Wires Industrial Process Control – Monitoring furnaces, boilers, and reactors HVAC Systems – Temperature regulation in heating and cooling systems Food & Beverage Industry – Ensuring safe cooking, pasteurization, and storage Automotive & Aerospace – Engine testing, exhaust monitoring, and thermal management Medical & Laboratory Equipment – Sterilization, incubators, and cryogenic storage Energy & Power Plants – Turbine and exhaust gas temperature measurement Why Choose Our Thermocouple Wires? At Tankii, we combine advanced metallurgy, precision engineering, and strict quality control to deliver thermocouple wires that outperform industry standards. Our products are trusted by leading manufacturers and research institutions worldwide for their: Superior Material Quality – Only high-purity alloys for consistent performance Custom Solutions – Tailored wire configurations for specialized needs Competitive Pricing – Cost-effective without compromising durability Expert Support – Technical assistance to help you select the right thermocouple for your application Whether you need standard thermocouple wires or custom-engineered solutions, we have the expertise to meet your requirements. Contact us today to discuss your project or request a quote!