High Temperature Cable (AerOpak®)


HIGH TEMPERATURE CABLE (MI CABLE)

ARi has developed a complete line of metallic sheath ceramic insulated thermocouple cable for operation in the range of 1100 °C (2012 °F) to 2200 °C (3992 °F).  This is a high quality product employing clean room techniques in manufacturing and inspection.  It is useable either for fabrication of high temperature thermocouples or leadwire cable for thermocouples.

 

Electrical Characteristics

INSULATION RESISTANCE Room temperature insulation resistance will be a minimum of 1000 megohms at 50 VDC for 1.0-1.5 mm O.D. and 500 VDC for 3.18-6.35 mm O.D.  Insulation resistance at 1000 °C will be a minimum of 6100 ohms-meter at 6 VDC.  Proper bending will not cause a loss of insulation resistance.
WIRE HOMOGENITY Will be such that a sharp gradient of 800 °C will produce not more than a ± 0.1 millivolt output.

 

Physical Characteristics

FORMABILITY:  Forming is limited to a minimum inside bend radius of five (5) sheath diameters for Inconel 600 and Platinum alloys and 10 diameter for Tantalum.
PRESSURE Can withstand external pressure of 3500 Kg/cm² at room temperature.
FABRICATION AerOpak® can be GTAW welded and brazed without changing insulation resistance.  Welding on Tantalum must be done in either vacuum or inert atmosphere.
Random lengths will be provided unless requested otherwise.  Specific lengths are available in all standard products, up to the maximum single length indicated in the Tables.  Length tolerance: ± 15 cm.
Each section of AerOpak® is moisture-sealed at both ends with a suitable  resin.  When ordering, allow 2.5 cm to be removed from each end.  Both ends can be provided with a storage seal (seal welding) in place of the temporary resin seal.
AerOpak® in straight lengths will have a curvature not exceeding six (6) mm in one (1) meter as measured against a straight edge lying free.
DIAMETER Shall be within ± 0.05mm of nominal.  Ovality will not exceed 0.003mm.
INTEGRITY There shall be no porosity, inclusions, pit or scratches which exceed 10% wall thickness, or 0.003 mm (whichever is greater).

 

 

How To Order:

1. Specify by description.
Example: ¼ inch Inconel 600 Sheath, Type R mineral insulated cable.

2. Specify by part number.
The part number is defined per the following:
EXAMPLE
125- 2N - BR-30

MI High Temperature Cable

 

125 - 2 N - B R -

30

(1)   (2) (3)   (4) (5)   (6)

(1)  Sheath Diameter = 0.125 inch O.D.
(2)  Number of Conductors = 2 wires
(3)  Insulation/Purity
        N = MgO / 99.4% Min Purity
(4)  Sheath Material = Inconel 600
(5)  Wire Material = Calibration R
(6)  Wire Gage
        30 = 30 AWG (0.010 inch)

 

3. Specify total quantity. If cut lengths are required, specify length of each piece. Accuracy of a cut is +/- 1/2% of the length or +/- 1/2 inch (12.7mm), which ever is larger.

4. Sizes up to 0.375 inch (9.53mm) can be shipped UPS or FedEx.

5. Shipping tolerance for random lengths is +15% / -10% unless specified otherwise.

6. Standard shipping coil sizes and weight:

Shipping Coil Sizes And Weight

Sheath O.D. Coil O.D. Approximate Weight at 100 ft (30.48 meters)
inch mm inch mm lbs kg
0.020 0.5 20-22 508-559 0.2 0.09
0.040 1.0 0.3 0.14
0.062 1.6 30 762 0.9 0.41
0.120 3.0 2.5 1.13
0.125 3.2 3.3 1.50
0.188 4.8 7.0 3.18
0.236 6.0 42 1067 10.8 4.90
0.250 6.4 12.3 5.58
0.313 8.0 19.5 8.85
0.375 9.5 27.0 12.25
0.500 12.7 42-48 1067-1220 50.0 22.68
0.625 15.9 Shipped straight , 20 ft maximum lengths Shipped straight , 6.1 meters maximum lengths 75.0 34.02
0.750 19.0 112.5 51.03

   

MATERIAL SPECIFICATIONS

 

Standard Sheath Material

Sheath Material ARi Symbol Maximum Usage Temperature Melting Temperature Environment Minimum Bend Radius
°F °C °F °C
Inconel 600* B   1175    1345 Inert, Vacuum, Oxidizing 5x Diameter
Platinum 10% Rhodium AH   1550   1850 Inert, Oxidizing 5x Diameter
Tantalum N   2200    2995 Inert, Vacuum 10x Diameter
310 ST/ST D   1050     Inert, Vacuum, Oxidizing 5x Diameter
Niobium 1% Zirconium AV   2200    2495 Inert, Vacuum 10x Diameter

  *Registered U.S. Trademark, International Nickel Corp.

 

Thermocouple Wire

Material ASTM E-230-81 Symbol ARi Symbol Calibration Tolerance Limits Of Error
Platinum 13% Rhodium vs. Platinum R R ± 1.5 °C from 0 to 600 °C
± 25% from 600 to 1450 °C
Platinum 10% Rhodium vs. Platinum S S  
Platinum 30% Rhodium vs. Platinum 6% Rhodium B B ± 0.5% from 800 to 1700 °C
Tungsten 5% Rhenium vs. Tungsten 26% Rhenium --- AE ± 4.44 °C from 0 to 427 °C
± 1% from 427 to 2315 °C

  

 

Please contact us for further information or any special requirements you may have.

Standard AerOpak® Mineral Insulated Cable is normally available from our inventory for immediate shipment. Call or email for details!

We want to hear from you:

800-237-6725 (Toll Free)

630-953-9100 (Phone)

630-953-0590 (Fax)

sales@ariindustries.com