Type N Thermocouple Probe (316L Stainless Steel Sheath, M20×1.5 Thread, IP65)

Product Overview

Standard Designations & Core Material Foundation

• Thermocouple Type: Type N (Nicrosil/Nisil; compliant with IEC 60584-2 Class 1)
• Key Specification:
  • Sheath: 316L stainless steel; diameter: 8mm (customizable: 3–12mm); length: customizable (e.g., 300mm, 500mm, 1000mm)
  • Connection head: Die-cast aluminum (IP65 protection, waterproof and dustproof)
  • Mounting thread: M20×1.5 (standard industrial thread)
  • Thermocouple wire: Nicrosil (NP) / Nisil (NN), diameter: 0.5mm (customizable: 0.3–1.0mm)
  
  
• Sheath Material: 316L Stainless Steel (corrosion-resistant, high-temperature, marine-grade)
• Chemical Composition: Positive (NP): Ni 84% / Cr 14% / Si 1.4%; Negative (NN): Ni 95% / Si 4.5% / Mg 0.1%
• Compliant Standards: IEC 60584-2, ASTM E230, GB/T 4989, RoHS 2.0
• Manufacturer: Huona New Material, certified to ISO 9001 and IATF 16949

Key Core Advantages (Centered on Type N Stability & 316L Corrosion Resistance)

1. Superior Thermoelectric Stability

• Minimal Drift: Type N thermocouple exhibits significantly less thermoelectric drift compared to Type K at high temperatures (above 1000℃), ensuring long-term measurement accuracy.
• Wide Temperature Range: Continuous operation from -200℃ to 1300℃, making it suitable for both cryogenic and high-temperature industrial applications.

2. High Precision & Accuracy

• Class 1 Accuracy: Thermoelectric potential error ≤±1.1℃ (0–400℃) / ±0.4% t (400–1300℃), meeting the precision requirements for critical industrial process control.
• Fast Thermal Response: Compact sheath design provides a thermal response time (τ₅₀) ≤2s in air at 800℃, ideal for dynamic temperature monitoring.

3. Rugged Construction & Environmental Resistance

• 316L Stainless Steel Sheath: Provides excellent resistance to corrosion, pitting, and crevice attack, making it ideal for marine, petrochemical, and acidic environments.
• IP65 Connection Head: Die-cast aluminum head with IP65 protection, preventing ingress of dust and water, suitable for outdoor and wet industrial settings.

4. Secure Mounting & Easy Installation

• Standard M20×1.5 Thread: Enables secure, stable installation in process pipelines, equipment casings, and furnace walls, with adjustable insertion depth.
• Universal Compatibility: Compatible with most industrial temperature controllers, data loggers, and PLC systems.

5. Versatile Processability

• Flexible Termination: Connection head accommodates standard terminal blocks for easy wiring and maintenance.
• Customizable Options: Supports various sheath lengths, diameters, and mounting configurations to meet specific application needs.

Technical Specifications

Product Specifications

Typical Application Scenarios

• Power Generation: Monitoring of boiler tubes, turbines, and exhaust systems in coal-fired and nuclear power plants (high stability at elevated temperatures).
• Petrochemical & Refining: Process temperature control in reactors, pipelines, and storage tanks exposed to corrosive chemicals (316L corrosion resistance).
• Industrial Furnaces & Heat Treatment: Temperature monitoring in steel mills, forging shops, and heat treatment furnaces (minimal drift at high temperatures).
• Aerospace & Defense: High-temperature sensor applications in jet engines and aerospace testing.
• Cryogenic & Low-Temperature Research: Temperature measurement in cryogenic chambers and low-temperature industrial processes.