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High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple

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High Accuracy Mineral Insulated Power Cable For Temperature Sensor Thermocouple

Brand Name : GME

Certification : ISO 9001

Place of Origin : China

MOQ : 100 Meters

Price : Negotiable

Payment Terms : T/T, Western Union,Paypel

Supply Ability : 300000 Meters per Month

Delivery Time : 3~20 working days after received your payment

Packaging Details : Standard Export Packing

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

SS304
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.

SS321
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 .

SS316
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.

SS310
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)

SS304

SS321

SS316

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
I II
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 --- ---

600~1700


Product Tags:

mineral insulated heating cable

      

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