Products Description

A Sheath-type N-type Thermocouple with an Inconel 600 sheath is a specialized temperature-sensing device designed for reliable operation in demanding environments.

I.Core Parameters

Parameter Category	Specific Parameter	Value / Description
Thermocouple Type	Calibration	Type N (NiCrSi-NiSiMg)
Error Limits and Effective Temperature Range	Grade 1	±1.5℃ or ±0.4% t, -40~1000℃
	Grade 2	±2.5℃ or ±0.75% t, -40~1200℃
	Grade 3	±2.5℃ or ±1.5% t, -40~200℃
Temperature Resistance Performance	Maximum Oxidation Resistance Temperature of Type N Thermocouple	1300℃
	Maximum Temperature Resistance of Inconel 600 Sheath	1093℃ (maintains structural integrity)
Chemical Composition of Sheath Material	Nickel (Ni)	Approximately 76%
	Chromium (Cr)	Approximately 16%
	Iron (Fe)	Approximately 8%

II. Product Characteristics

Temperature Measurement Principle: Based on the Seebeck effect, it forms a closed circuit with two different metal conductors (Nicrosil/Nisil alloys), and calculates the temperature by the electromotive force generated by the temperature difference between the measuring junction and the reference junction.

Structural Features: Adopts Inconel 600 alloy as the protective sheath to provide mechanical and chemical protection for the internal thermocouple wire, belonging to a sheathed special temperature sensing device.

Performance Characteristics: The thermoelectric performance linearity is better than that of K-type thermocouples in the temperature range of 400–1300℃, while the nonlinearity increases in the range of -200–400℃; it has the characteristics of resistance to nuclear radiation and low-temperature environments.

III. Specifications of Related Components

(I) Type N Thermocouple

Material: Nicrosil/Nisil alloy (NiCrSi-NiSiMg)Key Performance: Excellent oxidation resistance within 1300℃, good long-term stability and repeatability under thermal cycling, and good linear performance of thermoelectric properties in the medium and high temperature range.

(II) Inconel 600 Sheath

Material Properties: A nickel-chromium-iron alloy with high-temperature strength and corrosion resistance, capable of withstanding corrosion from most acids, alkalis and ultrapure water.Functional Specifications: Serves as a protective barrier to isolate the thermocouple wire from mechanical damage, chemical erosion and harsh environmental conditions such as high humidity, dust and corrosive gases.

IV. Application Scenarios

Furnace equipment

Chemical processing

Power generation systems

V. Product Advantages

High-Temperature Adaptability: Type N thermocouple maintains good oxidation resistance within 1300℃, and Inconel 600 sheath keeps structural stability within 1093℃, suitable for high-temperature industrial scenarios.

Measurement Stability: Excellent long-term stability and repeatability under thermal cycling ensure consistent temperature measurement results.

Environmental Tolerance: Resistant to nuclear radiation and low temperatures, and the sheath is resistant to acid and alkali corrosion, suitable for complex and harsh working conditions.

Measurement Accuracy: Better thermoelectric performance linearity than K-type thermocouples in the medium and high temperature range (400–1300℃), resulting in more accurate temperature measurement results.

Long Service Life: The protective effect of the sheath reduces the loss of the thermocouple core and extends the overall service life of the equipment.

VI. Frequently Asked Questions

Q1: Do you accept sample orders?

A: Yes, we welcome sample orders for quality testing and verification.

Q2: What is the delivery lead time?

A: Sample production takes 5-7 days; bulk production takes 2-3 weeks depending on the order quantity.

Q3: Is there a Minimum Order Quantity (MOQ) requirement?

A: The MOQ requirement is low; we support 1-piece sample orders for quality inspection.

Q4: What are the shipping methods and delivery time?

A: Regular shipping methods include DHL, UPS, FedEx, or TNT, with a typical delivery time of 3-5 days; air freight or sea freight is also available.

Q5: Do you provide a product warranty?

A: Yes, we offer a 1-year warranty for our products.

Mineral insulated thermocouple Limit Of Error

Thermoelement	Type	Limits Of Error(±℃)/Effective Temperature Range(℃)
Thermoelement	Type	1 class	2 class	3 class
NiCr10-NiSi3	K	1.5 or 0.4%t/-40~1000	2.5 or 0.75%t/-40~1200	2.5 or 1.5%t/-40~200
NiCrSi-NiSiMg	N	1.5 or 0.4%t/-40~1000	2.5 or 0.75%t/-40~1200	2.5 or 1.5%t/-40~200
NiCr-Constantan	E	1.5 or 0.4%t/-40~800	2.5 or 0.75%t/-40~900	2.5 or 1.5%t/-40~200
Fe- Constantan	J	1.5 or 0.4%t/-40~750	2.5 or 0.75%t/-40~750	--
Copper- Constantan	T	0.5 or 0.4%t/-40~350	1.0 or 0.75%t/-40~350	1.0 or 1.5%t/-200~40