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B-Type Thermocouple Wire for Extreme Heat Environments Accurate Thermal Detection
B-Type Thermocouple Wire for Extreme Heat Environments Accurate Thermal Detection
Specifications
Brand Name :
Huona
Model Number :
Type B
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
10g
Price :
Negotiable
Payment Terms :
L/C,T/T,Western Union,MoneyGram
Supply Ability :
1000 m per month
Delivery Time :
5-21 days
Packaging Details :
Carton/Wooden Case
Product Name :
Thermocouple Wire Type B
Positive :
PtRh30
Negative :
PtRh6
Wire Diameter :
0.5mm, 0.8mm, 1.0mm (tolerance: -0.02mm)
Tensile Strength (20°C) :
≥150 MPa
Elongation :
≥20%
Electrical Resistivity (20°C) :
Positive leg: 0.31 Ω·mm²/m; Negative leg: 0.19 Ω·mm²/m
Thermoelectric Power (1000°C) :
0.643 mV (vs 0°C reference)
Description

Product Description

Type B Thermocouple Wire

Product Overview

Type B thermocouple wire is a high-performance precious metal thermocouple consisting of two platinum-rhodium alloys: a positive leg with 30% rhodium and 70% platinum, and a negative leg with 6% rhodium and 94% platinum. Designed for extreme high-temperature environments, it is the most heat-resistant among common precious metal thermocouples, excelling in stability and oxidation resistance at temperatures exceeding 1500°C. Its unique dual-platinum-rhodium composition minimizes drift caused by platinum evaporation, making it ideal for long-term high-temperature measurement.

Standard Designations

  • Thermocouple Type: B-type (Platinum-Rhodium 30-Platinum-Rhodium 6)
  • IEC Standard: IEC 60584-1
  • ASTM Standard: ASTM E230

Key Features

  • Extreme Temperature Resistance: Long-term operating temperature up to 1600°C; short-term use up to 1800°C
  • Low EMF at Low Temperatures: Minimal thermoelectric output below 50°C, reducing cold junction error impact
  • Superior High-Temp Stability: ≤0.1% drift after 1000 hours at 1600°C
  • Oxidation Resistance: Excellent performance in oxidizing atmospheres; resistant to platinum evaporation
  • Mechanical Strength: Maintains ductility at high temperatures, suitable for harsh industrial environments

Technical Specifications

Attribute Value
Wire Diameter 0.5mm, 0.8mm, 1.0mm (tolerance: -0.02mm)
Thermoelectric Power (1000°C) 0.643 mV (vs 0°C reference)
Thermoelectric Power (1800°C) 13.820 mV (vs 0°C reference)
Long-Term Operating Temperature 1600°C
Short-Term Operating Temperature 1800°C (≤10 hours)
Tensile Strength (20°C) ≥150 MPa
Elongation ≥20%
Electrical Resistivity (20°C) Positive leg: 0.31 Ω·mm²/m; Negative leg: 0.19 Ω·mm²/m

Chemical Composition (Typical, %)

Conductor Main Elements Trace Elements (max, %)
Positive Leg (Platinum-Rhodium 30) Pt:70, Rh:30 Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001
Negative Leg (Platinum-Rhodium 6) Pt:94, Rh:6 Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001

Product Specifications

Item Specification
Length per Spool 5m, 10m, 20m (due to high precious metal content)
Surface Finish Annealed, bright (no surface contamination)
Packaging Vacuum-sealed in argon-filled titanium containers to prevent oxidation
Calibration Traceable to international temperature standards with certified EMF curves
Custom Options Precision cutting, surface polishing for high-purity applications

Typical Applications

  • High-temperature sintering furnaces (ceramic and refractory materials)
  • Metal smelting (superalloy and special steel production)
  • Glass manufacturing (float glass forming furnaces)
  • Aerospace propulsion testing (rocket engine nozzles)
  • Nuclear industry (high-temperature reactor monitoring)

We provide Type B thermocouple assemblies with ceramic protection tubes and high-temperature connectors. Due to the high material value, sample lengths are limited to 0.5-1m upon request, accompanied by full material certificates and impurity analysis reports. Custom configurations for specific furnace environments are available

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B-Type Thermocouple Wire for Extreme Heat Environments Accurate Thermal Detection

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Product Detail
Brand Name :
Huona
Model Number :
Type B
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
10g
Price :
Negotiable
Contact Supplier
video
B-Type Thermocouple Wire for Extreme Heat Environments Accurate Thermal Detection

Huona (Shanghai) New Material Co., Ltd.

Verified Supplier
1 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Exporter
Main Products :
Low Expansion Alloy, Soft Magnetic Alloy, Elastic Alloy
Total Annual :
8000000-100000000
Employee Number :
100~120
Certification Level :
Verified Supplier
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