NiCrSi-NiSiMg Type N Thermocouple Wire with Improved EMF Drift and
Extended Life for Temperature Control
NiCrSi-NiSiMg Type N Thermocouple Wire is a high-precision
thermocouple made from a combination of Nickel-Chromium-Silicon
(NiCrSi) as the positive leg and Nickel-Silicon-Magnesium (NiSiMg)
as the negative leg. It is designed for temperature measurements in
high-temperature environments, offering a wide operational range
from -200°C to 1300°C, making it suitable for a variety of
industrial and scientific applications.
Type N thermocouples are known for their exceptional stability and
resistance to oxidation, especially at elevated temperatures. This
makes them ideal for use in high-temperature furnaces, kilns, and
other demanding environments where consistent, long-term
performance is required. Additionally, Type N thermocouples are
less prone to drift compared to other high-temperature
thermocouples, such as Type K, and they offer excellent resistance
to thermoelectric instability, ensuring more accurate and reliable
temperature readings over time.
Applications of NiCrSi-NiSiMg Type N thermocouple wire include
industries like metal processing, heat treatment, aerospace, and
power generation, as well as scientific research where
high-temperature measurements are critical. Its durability and
accuracy at high temperatures make it a preferred choice for
precision temperature monitoring in harsh conditions.
Thermocouple temperature range and tolerance
Name |
Usag Classification |
Grade | Max. operating temperature(℃) |
emperitre nres) |
Tnlerene |
Standard |
Lang term |
Short term |
NiCrSi-NiSiMg (Type N)
thermocouple
bright wire | N | l | 1200 | 1300 | -40~1100 | ±1.5℃ or ±0.4%t | GB/T17615 IEC 584-1 |
| Ⅱ | -40~1300 | ±2.5℃ or ±0.75%t |
| Name | NP | NN |
| Melting Range(℃) | 1410 | 1340 |
| Density(g/cm³) | 8.5 | .8.6 |
| Resistivity(μΩm20℃) | 100 | 33 |
Resistance-temperture coefficient ×10-4/K(0℃-1200℃) | 0.78 | 14.9 |
| Tensile strength Rm N/mm² MPa | ≥620 | ≥550 |
| Elongation % | ≥30 | ≥35 |
Some key features of NiCrSi-NiSiMg Type N Thermocouple Wire
include:
- Wide Temperature Range:
Type N thermocouples operate effectively within a temperature range
of -200°C to 1300°C, making them suitable for both low and
high-temperature applications.
- Exceptional Stability at High Temperatures:
Known for their stability, Type N thermocouples perform well at
elevated temperatures, with minimal drift over time, ensuring
reliable readings in high-temperature environments.
- Resistance to Oxidation and Corrosion:
The use of Nickel-Chromium-Silicon and Nickel-Silicon-Magnesium
alloys provides superior resistance to oxidation and corrosion,
even in aggressive atmospheres, making them ideal for harsh
industrial conditions.
- High Durability:
Type N thermocouples are highly durable, offering long-term
performance with minimal degradation, even in extreme temperature
fluctuations.
- Low Drift Over Time:
Type N thermocouples exhibit very low drift, ensuring consistent
and precise temperature measurements over extended periods of use.
- Improved Accuracy:
Compared to other high-temperature thermocouples, Type N offers
improved accuracy due to the stability and consistency of the
materials used.
- Magnetic Field Resistance:
Type N thermocouples show less sensitivity to magnetic fields,
making them suitable for use in environments with strong
electromagnetic interference.
- Minimal Signal Noise:
With a relatively low tendency to produce noise, Type N
thermocouples deliver clean and stable temperature readings,
ensuring accurate data collection.
These features make NiCrSi-NiSiMg Type N Thermocouple Wire a
preferred choice for high-precision temperature measurement in
challenging environments, including metal processing, aerospace,
power generation, and scientific research.
Applications:
- High-Temperature Industrial Processes:
Used in industries such as metal processing, steel production, and
heat treatment, where accurate temperature measurement at high
temperatures (up to 1300°C) is essential for process control and
quality assurance.
Employed in aerospace applications, including engine testing and
high-altitude simulations, where precise and stable temperature
measurements are required under extreme conditions.
- Energy Generation and Power Plants:
Applied in power generation, especially in gas turbines, boilers,
and furnaces, to monitor high temperatures in energy production
systems and ensure operational efficiency and safety.
- Combustion Chambers and Furnaces:
Used in combustion chambers, furnaces, and kilns to monitor
temperature stability during high-temperature operations, ensuring
optimal combustion and energy efficiency.
- Materials Testing and Research:
Ideal for use in laboratories and research settings, where Type N’s
high-temperature accuracy and stability are needed for testing and
experimental research in thermodynamics and materials science.
- Metal Casting and Refining:
Used in the casting and refining of metals, particularly in
processes that require precise temperature monitoring of molten
metals, ensuring product quality and consistency.
- Semiconductor Manufacturing:
Type N thermocouples are used in the semiconductor industry for
temperature control in processes such as wafer fabrication and
thermal treatment of semiconductor materials.
- Environmental and Atmospheric Testing:
Utilized in environmental testing chambers and high-temperature
atmospheric simulations where stable and accurate temperature
measurement is critical for research or product testing.
NiCrSi-NiSiMg Type N thermocouples are chosen for their durability,
stability, and high accuracy, making them suitable for demanding
applications that require precise, long-term temperature monitoring
in extreme conditions.
