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High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple

High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple


Product Details:

Place of Origin: China
Brand Name: GME
Certification: ISO 9001

Payment & Shipping Terms:

Minimum Order Quantity: 100 Meters
Price: Negotiable
Packaging Details: Standard Export Packing
Delivery Time: 3~20 working days after received your payment
Payment Terms: T/T, Western Union,Paypel
Supply Ability: 300000 Meters per Month
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Detailed Product Description
Product Name: Mineral Insulated Cable Diameter: 0.25mm~12.70mm
Calibration: Calibration K, J, E, T, N, S,R,B Conductor: 2 Wires, 4wires, 6wires
Accuracy: Class I Application: Industrial Temperature Sensor
Core: Simplex, Duplex, Triplex Sheath Material: SS304,SS321,,SS316,INCONEL600 Etc
Wire Diameter: 15% -17% Of Outside Diameter Tube Thickness: 10% -12% Of Outside Diameter
Insulation Material: Magnesium Oxide
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High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple


High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple


High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple


1. Description


Mineral Insulated thermocouple cables are the core material to produce thermocouples. It typically comprises stainless steel or Inconel sheath, Magnesium Oxide (MgO) powder and thermoelectric conductors ; Magnesium Oxide (MgO) powder is disposed in the sheath to maintain separation and electrical isolation between the sheath and the thermoelectric conductors . Magnesium oxide (MgO) is preferably used as the insulation material for the MI thermocouple cables because it is stable at high temperatures and pressure .It provides a high electricity resistance and is also economical .


2. Feature


1). The metal sheath can protect the inner thermocouple conductor against contamination, makes it moisture proof , weldable, compact and mechanically strong.
2). MI insulated thermocouple cable make it easy to make thermocouple in small diameter ;
3). The small mass and high thermal conductivity of a properly made cable enables fast thermal response of the finished thermocouple assembly.
4). Different sheath materials can be selected to offer strong resistance against corrosive and extremely high temperature environments.


3. Sheath Material


Max. temperature: 900°C (1650°F).

This sheath material is most widely used in low temperature . Mainly used in chemical, food, beverage, and other industries where corrosion resistance is a must, which is also the lowest cost corrosion resistant sheath material . Subject to damaging carbide precipitation in 482°C to 871°C (900° to 1600°F) range.


Max. temperature: 871°C (1600°F). Quite similar to stainless steel 304 except titanium stabilized for intergranular corrosion. SS321 is used to overcome susceptibility to carbide precipitation in the 482° to 871°C (900° to 1600°F) range. Main applications are aerospace and chemical .


Max. temperature: 900°C (1650°F). It is the best corrosion resistance of the austenitic stainless steel grades. Good corrosion resistance in H2S. Mostly used in the food and chemical industry. Subject to damaging carbide precipitation in 482° to 871°C (900° to 1600°F) range.


Max. temperature: 1150°C (2100°F). Similar to but better than 304 SS in mechanical and corrosion resistance. Also good in heat resistance. SS310 contains 25% Cr, 20% Ni. Not as ductile as 304 SS.


Inconel 600
Maximum temperature: 1177°C (2150°F) Continuous; 1260°C (2300°F) Intermittent. Similar to Alloy 600 with the addition of aluminum for remarkable oxidation resistance. Used for high temperature corrosion resistance , especially good in carburizing environments with good creep rupture strength. Can’t be used in vacuum furnaces! Susceptible to intergranular attack by prolonged heating in 538° to 760°C (1000° to 1400°F) temperature range.


4. Chemical Composition


Sheath Material Chemical Composition Max. Temp. In Air Melting Temp.
C Si Mn P S Cr Ni Others
SS304 ≤0.07 ≤1.00 ≤2.00 ≤0.035 ≤0.03 17-19 8-11 - 900℃ 1405℃
SS321 ≤0.12 ≤1.00 ≤2.00 ≤0.035 ≤0.03 17-19 8-11 5(C%-0.02)~0.08 870℃ 1400℃
SS316 ≤0.08 ≤1.00 ≤2.00 ≤0.035 ≤0.03 16-19 11-14 Mo: 1.8-2.5 925℃ 1370℃
SS310 ≤0.08 ≤1.00 ≤2.00 ≤0.035 ≤0.03 24-26 19-22 Ti: 5C%-0.07 1090℃ 1405℃
INC600 ≤0.15 ≤0.50 ≤1.00 ≤0.030 ≤0.015 14-17 >72 Fe: 6-10, Cu: <0 1090℃ 1400℃


5. Sheath Specification


Sheath material Sheath OD (mm) Wall Thickness (mm) Wire Dia. (mm) Coil Length(m)




3.0 0.30-0.48 0.45-0.60 100
3.2 0.32-0.58 0.48-0.68 100
4.0 0.40-0.62 0.60-0.70 70
4.8 0.48-0.83 0.72-0.85 70
5.0 0.50-0.85 0.75-0.90 50
6.0 0.60-1.08 0.90-1.10 50
6.4 0.64-1.15 0.92-1.12 40
8.0 0.80-1.44 1.20-1.40 30


6. Calibration Tolerance 


Conductor Calibration Accuracy
Tolerance Temperature Tolerance Temperature
Ni Cr - Ni Si K 1.5 or 0.4%t -40~1000 2.5 or 0.75%t -40~1000
Ni Cr Si- Ni Si N -40~1000 -40~1000
Ni Cr - Konstantan E -40~800 -40~800
Fe - Konstantan J -40~750 -40~750
Cu - Konstantan T 1.5 or 0.4%t -40~350 1 or 0.75%t -40~350
Pt Rh 10 - Pt S 1 or 1+(t-1100)x0.003 0~1600 1.5 or 0.25%t 0~1600
Pt Rh 13 - Pt R 0~1600 0~1600
Pt Rh 13 - Pt Rh 6 B --- ---


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