Duplex Mineral Insulated Thermocouple Cable (MI Cable) with Stainless steel SS321

. High purity ≥99.6% MgO insulation mineral powder
. Duplex Mineral Insulated Thermocouple Cable
. No. of wire: 4 conductors
. Differnet sheath diameters from 2.0mm to 12.7mm
. Sheath material: SS321
. MI cables can be bent and wound in a coil shape and soldered with silver, or welded
. All our mineral insulated thermocouple cables are delivered with a certificate of conformity

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Technical Data

Sheath Material of SS321
Applications: Nuclear power plants, reactor instrumentation, construction of chemical instruments, such as production of acetyl acid and nitric acids, heat exchangers, annealing furnaces, paper and textile industry, crude oil refinement and petrochemistry, fat and soap industry, food processing, dairy and fermentation works.
Max. continuous temperature: 900°C
Heat resistance: Good oxidation resistance in intermittent service to 800°C and in continuous service to 900°C. Resistant to carbon dioxide up to 650°C .
Corrosion resistance: Excellent resistance to aggressive environments such as hot crude oil products, steam and combustion gases.
Welding: Suitable for all standard welding methods.

Chemical Composition of Stainless Steel Sheath

Sheath Material	Chemical Composition								Max. Temp. In Air	Melting Temp.
Sheath Material	C	Si	Mn	P	S	Cr	Ni	Others	Max. Temp. In Air	Melting Temp.
SS321	≤0.12	≤1.00	≤2.00	≤0.035	≤0.03	17-19	8-11	5(C%-0.02)~0.08	870℃	1400℃

Sheath Specification

Outside sheath diameter	±0.05mm or ±1% of nominal diameter
Wall thickness	10% of sheath diameter as a minimum
Wire diameter	15% of sheath diameter as a minimum for 2 wires, 12% of sheath diameter as a minimum for 4 wires, 9% of sheath diameter as a minimum for 6 wires.
Calibration	To meet special limits of error as defined in ASTM-E230 and IEC 60584-2
MgO purity	99.6% MgO powder

Calibration Tolerance

Calibration	Tolerance
Calibration	Special Limits (Grade I)	Standard Limits (Grade II)	Temperature Range (℃)
K (Chromel vs Alumel)	±1.5°C or ±0.4%	±2.5°C or ±0.75%	-40~1000
J (Iron vs Constantan)			-40~750
E (Chromel vs Constantan)			-40~800
T (Copper vs Constantan)		±1°C or ±0.75%	-40~350

Order Code

Order Code of Duplex Mineral Insulated Thermocouple Cable (MI Cable) with Stainless steel SS321:

Calibration				Sheath OD (mm)	Sheath Material
Type K	Type J	Type E	Type T	Sheath OD (mm)	Sheath Material
MICD-K-2.0-SS321	MICD-J-2.0-SS321	MICD-E-2.0-SS321	MICD-T-2.0-SS321	2.0	SS321
MICD-K-2.4-SS321	MICD-J-2.4-SS321	MICD-E-2.4-SS321	MICD-T-2.4-SS321	2.4	SS321
MICD-K-3.0-SS321	MICD-J-3.0-SS321	MICD-E-3.0-SS321	MICD-T-3.0-SS321	3.0	SS321
MICD-K-3.2-SS321	MICD-J-3.2-SS321	MICD-E-3.2-SS321	MICD-T-3.2-SS321	3.2	SS321
MICD-K-4.0-SS321	MICD-J-4.0-SS321	MICD-E-4.0-SS321	MICD-T-4.0-SS321	4.0	SS321
MICD-K-4.5-SS321	MICD-J-4.5-SS321	MICD-E-4.5-SS321	MICD-T-4.5-SS321	4.5	SS321
MICD-K-4.8-SS321	MICD-J-4.8-SS321	MICD-E-4.8-SS321	MICD-T-4.8-SS321	4.8	SS321
MICD-K-5.0-SS321	MICD-J-5.0-SS321	MICD-E-5.0-SS321	MICD-T-5.0-SS321	5.0	SS321
MICD-K-6.0-SS321	MICD-J-6.0-SS321	MICD-E-6.0-SS321	MICD-T-6.0-SS321	6.0	SS321
MICD-K-6.4-SS321	MICD-J-6.4-SS321	MICD-E-6.4-SS321	MICD-T-6.4-SS321	6.4	SS321
MICD-K-8.0-SS321	MICD-J-8.0-SS321	MICD-E-8.0-SS321	MICD-T-8.0-SS321	8.0	SS321
MICD-K-9.5-SS321	MICD-J-9.5-SS321	MICD-E-9.5-SS321	MICD-T-9.5-SS321	9.5	SS321
MICD-K-10.0-SS321	MICD-J-10.0-SS321	MICD-E-10.0-SS321	MICD-T-10.0-SS321	10.0	SS321
MICD-K-10.8-SS321	MICD-J-10.8-SS321	MICD-E-10.8-SS321	MICD-T-10.8-SS321	10.8	SS321
MICD-K-12.7-SS321	MICD-J-12.7-SS321	MICD-E-12.7-SS321	MICD-T-12.7-SS321	12.7	SS321

Order Example:
1. If you order MI thermcouple cable is special limits, please change calibration "K" to "KK", it means "MICD-KK-0.5-SS321".
2. For other calibration such as type N is also available.