Type B Thermocouple Probe (99% Alumina Ceramic Sheath, 1800°C)

Product Overview

Standard Designations & Core Material Foundation

• Thermocouple Type: Type B (PtRh30-PtRh6; compliant with IEC 60584-2 Class 1)
• Key Specification:
  • Sheath: 99% alumina ceramic; diameter: 8mm (customizable: 6–16mm); length: customizable (e.g., 300mm, 500mm, 1000mm)
  • Connection head: Die-cast aluminum (IP65 protection)
  • Thermocouple wire: PtRh30 (BP) / PtRh6 (BN), diameter: 0.5mm (customizable: 0.3–1.0mm)
  
  
• Sheath Material: 99% Alumina Ceramic (Al₂O₃ ≥99%, ultra-high-temperature, corrosion-resistant)
• Chemical Composition: Positive (BP): Pt 70% / Rh 30%; Negative (BN): Pt 94% / Rh 6%
• 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 Ultra-High Temperature & Ceramic Sheath)

1. Extreme High-Temperature Capability

• Continuous Operation: Up to 1800℃, short-term up to 1820℃, suitable for the most demanding high-temperature industrial environments.
• Thermal Stability: Minimal thermoelectric drift at temperatures above 1600℃, ensuring reliable measurement data in extreme conditions.

2. High Precision & Excellent Linearity

• Class 1 Accuracy: Thermoelectric potential error ≤±0.5% t (600–1800℃), meeting the highest precision requirements for ultra-high-temperature measurement and calibration.
• Low Room-Temperature EMF: Near-zero EMF output at room temperature, eliminating the need for cold-junction compensation in many applications.

3. Superior Corrosion & Contamination Resistance

• Ceramic Sheath Advantage: 99% alumina ceramic is chemically inert and provides exceptional resistance to high-temperature corrosion and contamination, ideal for processes like glass melting and metal casting.
• Noble Metal Advantage: Platinum-rhodium based thermocouple wire provides excellent oxidation resistance in oxidizing and inert atmospheres.

4. Rugged Connection Head & Easy Installation

• Die-Cast Aluminum Head: IP65 protection against dust and moisture, suitable for industrial environments.
• Standard Mounting: Threaded or flange mounting options (customizable) for secure installation in furnaces and equipment.

5. Stable Mechanical Properties

• Uniform Sheath Dimensions: Strict tolerance control ensures consistent sheath diameter and length across batches, reducing installation variability.
• High Surface Quality: Smooth ceramic surface minimizes heat transfer resistance and ensures reliable thermal response.

Technical Specifications

Product Specifications

Typical Application Scenarios

• Ultra-High-Temperature Industrial Furnaces: Temperature monitoring in metal melting furnaces, glass melting tanks, and ceramic sintering kilns (1800℃ continuous operation).
• Laboratory & Calibration: Precision temperature measurement and standard calibration in research institutes and metrology laboratories for ultra-high-temperature processes.
• Metal Casting & Forging: Temperature control in the casting and forging of high-temperature alloys and special metals.
• Aerospace & Defense: High-temperature sensor applications in rocket engines, hypersonic vehicles, and aerospace testing.
• Advanced Materials Synthesis: High-purity temperature monitoring in the synthesis of advanced ceramics and refractory materials.