
Name: Mineral Insulated Cable
Type: K, N, E, J, T
Conductor material: NiCr-NiSi,NiCrSi-NiSi), NiCr-Konstantan, Fe-Konstantan, Cu-Konstantan
Insulator: 99.6% high purity MgO
Core number: 2, 4, 6
Sheath material: SS321(SS304), SS316, SS310, INCL600,601, Nicrobell,SS446,SS347,800,800H,825,INCONEL601,INCONEL625,GH4145 and GH3128
Dia(mm): from 0.25mm to 12.7mm
Application: connecting with thermocouple and instrument machine
MOQ: 100m
Certificate: ISO,SGS
Making sample time: all type in stock
Trade term: FOB, EXW, CIF, CFR
Payment term: T/T,Western Union, L/C
Advantage: Competitive price and best service
Code | Wire Component of the thermocouple |
+Positive leg | - Negative Leg |
N | Ni-Cr-Si(NP) | Ni-Si-magnesium (NN) |
K | Ni-Cr(KP) | Ni-Al(Si) (KN) |
E | Ni-Cr(EP) | Cu-Ni (EN) |
J | Iron (JP) | Cu-Ni (JN) |
T | Copper (TP) | Cu-Ni (TN) |
B | Platinum Rhodium-30% | Platinum Rhodium -6% |
R | Platinum Rhodium-13% | Platinum |
S | Platinum Rhodium -10% | Platinum |
Material | Type | Grade | Working temperature (deg) | Tolerance | Standard |
Long Term | Short Term |
NiCr-NiSi | K | 1 | -40~1100 | -40~1300 | ±1.5 deg | GB/T 2614-1998 |
2 | ±2.5 deg |
NiCr-CuNi | E | 1 | -40~800 | -40~900 | ±1.5 deg | GB/T 4993-1998 |
2 | ±2.5 deg |
Fe-Constantan | J | 1 | -40~600 | -40~800 | ±1.5 deg | GB/T 4994-1998 |
2 | ±2.5 deg |
Cu-CuNi | T | 1 | -200~300 | -200~400 | ±0.5 deg | GB/T 2903-1998 |
Outer Sheath(mm) | core wire Dia.( mm) | Outer Sheath(mm)o core wire Dia.( mm) | Length(m) |
Out Dia | Wall Thickness | K,N,E,J,T Types | S,R,B Types | K,N Types | E,J,T Types | S,R Types | |
0.5 | 0.05-0.10 | 0.08-0.12 | ... | | | | | 500 |
1.0 | 0.10-0.20 | 0.15-0.20 | ... | 300 |
1.5 | 0.15-0.25 | 0.23-0.30 | ... | 200 |
1.6 | 0.16-0.26 | 0.26-0.36 | ... | 200 |
2.0 | 0.25-0.35 | 0.40-0.50 | 0.25-.030 | 180 |
3.0 | 0.38-0.48 | 0.50-0.60 | 0.30-0.40 | 80 |
3.2 | 0.48-0.58 | 0.58-0.68 | 0.30-0.40 | 75 |
4.0 | 0.52-0.62 | 0.60-0.70 | 0.35-0.40 | 70 |
4.8 | 0.73-0.83 | 0.75-0.85 | 0.40-0.45 | 40 |
5.0 | 0.78-0.88 | 0.80-0.90 | 0.40-0.45 | 40 |
6.0 | 0.98-1.08 | 0.90-1.10 | 0.45-0.50 | 30 |
6.4 | 1..05-1.15 | 1.02-1.12 | 0.45-0.50 | 30 |
8.0 | 1.30-1.44 | 1.30-1.40 | 0.45-0.50 | 20 |
12.7 | 1.75-1.90 | 1.95-2.05 | ... | 10 |




MI thermocouple cables, also known as mineral-insulated thermocouple cables, find applications in various industries that require accurate temperature measurement. Some common areas of application for MI thermocouple cables include:
1. Industrial Processes: MI thermocouple cables are widely used in industrial processes such as oil and gas, chemical processing, power generation, and metal refining. They enable precise temperature monitoring and control in these environments.
2. Furnaces and Kilns: MI thermocouple cables are employed in high-temperature applications like furnaces, kilns, and incinerators. They can withstand extreme temperatures and provide reliable temperature measurements in harsh conditions.
3. Aerospace and Aviation: MI thermocouple cables are utilized in the aerospace and aviation industries for temperature monitoring in aircraft engines, gas turbines, and rocket propulsion systems. They play a crucial role in ensuring safe and efficient operation.
4. Research and Development: MI thermocouple cables are used in scientific research laboratories and development facilities for accurate temperature measurement in experiments, testing, and prototype development.
5. Automotive Industry: MI thermocouple cables are employed in the automotive sector for temperature monitoring in engines, exhaust systems, and other critical components. They help optimize performance, fuel efficiency, and emissions control.
6. Food Processing: MI thermocouple cables are utilized in food processing applications to monitor and control temperatures in ovens, boilers, and other cooking or cooling processes. They contribute to ensuring food safety and quality.
7. Pharmaceutical and Biotechnology: MI thermocouple cables find application in pharmaceutical and biotechnology industries for temperature monitoring in drug manufacturing, fermentation processes, and sterilization equipment.
These are just a few examples of the application areas for MI thermocouple cables. Their versatility, accuracy, and durability make them suitable for a wide range of industries where precise temperature monitoring is essential.







