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PtRh13-Pt R-Type Thermocouple Ultra-Precise High-Temp Sensing & Steady Thermal Response

PtRh13-Pt R-Type Thermocouple Ultra-Precise High-Temp Sensing & Steady Thermal Response

PtRh13-Pt R-Type Thermocouple Ultra-Precise High-Temp Sensing & Steady Thermal Response
PtRh13-Pt R-Type Thermocouple Ultra-Precise High-Temp Sensing & Steady Thermal Response
Categories Thermocouple Cable
Brand Name: Huona
Model Number: Type R
Certification: ISO9001
Place of Origin: Shanghai
MOQ: 10g
Price: Negotiable
Payment Terms: L/C,T/T,Western Union,MoneyGram
Supply Ability: 1000m per month
Delivery Time: 5-21 days
Packaging Details: Carton/Wooden Case
Product Name: Thermocouple wire Type R
Positive: PtRh13
Negative: Pure Pt
Thermoelectric Power (1000°C): 7.121 mV (vs 0°C reference)
Wire Diameter: 0.2mm, 0.3mm, 0.5mm (tolerance: -0.015mm)
Tensile Strength (20°C): ≥130 MPa
Elongation: ≥25%
Electrical Resistivity (20°C): Positive leg: 0.24 Ω·mm²/m; Negative leg: 0.098 Ω·mm²/m
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Huona (Shanghai) New Material Co., Ltd.
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PtRh13-Pt R-Type Thermocouple Ultra-Precise High-Temp Sensing & Steady Thermal Response

Product Description

Type R Thermocouple Wire

Product Overview

Type R thermocouple wire is a high-precision precious metal thermocouple composed of a platinum-rhodium 13% alloy (positive leg) and pure platinum (negative leg). It belongs to the platinum-rhodium thermocouple family, offering superior stability and accuracy in high-temperature environments, especially in the range of 1000°C to 1600°C. Compared to Type S thermocouples, it has a higher rhodium content in the positive leg, providing enhanced performance in long-term high-temperature applications.

Standard Designations

  • Thermocouple Type: R-type (Platinum-Rhodium 13-Platinum)
  • IEC Standard: IEC 60584-1
  • ASTM Standard: ASTM E230

Key Features

  • High-Temperature Stability: Long-term operating temperature up to 1400°C; short-term use up to 1700°C
  • Superior Accuracy: Class 1 tolerance of ±1.5°C or ±0.25% of reading (whichever is larger)
  • Low Drift Rate: ≤0.05% thermoelectric potential drift after 1000 hours at 1200°C
  • Oxidation Resistance: Excellent performance in oxidizing and inert atmospheres (avoid reducing environments)
  • Higher Thermoelectric Power: Generates 10.574 mV at 1500°C (reference junction at 0°C)

Technical Specifications

AttributeValue
Wire Diameter0.2mm, 0.3mm, 0.5mm (tolerance: -0.015mm)
Thermoelectric Power (1000°C)7.121 mV (vs 0°C reference)
Long-Term Operating Temperature1400°C
Short-Term Operating Temperature1700°C (≤20 hours)
Tensile Strength (20°C)≥130 MPa
Elongation≥25%
Electrical Resistivity (20°C)Positive leg: 0.24 Ω·mm²/m; Negative leg: 0.098 Ω·mm²/m

Chemical Composition (Typical, %)

ConductorMain ElementsTrace Elements (max, %)
Positive Leg (Platinum-Rhodium 13)Pt:87, Rh:13Ir:0.02, Ru:0.01, Fe:0.003, Cu:0.001
Negative Leg (Pure Platinum)Pt:≥99.99Rh:0.003, Ir:0.002, Fe:0.001, Ni:0.001

Product Specifications

ItemSpecification
Length per Spool5m, 10m, 20m, 50m (precious metal material)
Surface FinishAnnealed, mirror-bright (no oxide layer)
PackagingVacuum-sealed in argon-filled containers to prevent contamination
CalibrationNIST-traceable with certificate of thermoelectric potential
Custom OptionsCut-to-length, special cleaning for ultra-high purity applications

Typical Applications

  • Aerospace engine testing (high-temperature combustion chambers)
  • High-precision industrial furnaces (sintering of advanced ceramics)
  • Semiconductor manufacturing (silicon wafer annealing)
  • Metallurgical research (superalloy melting point testing)
  • Glass fiber production (high-temperature furnace zones)


We also supply R-type thermocouple probes, connectors, and extension wires. Due to the high value of precious metals, free samples are available in limited lengths (≤1m) upon request, with detailed material certificates and impurity analysis reports.
Product Tags:

PtRh13-Pt R-Type Thermocouple

  

high-temp sensing thermocouple cable

  

steady thermal response thermocouple

  
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PtRh13-Pt R-Type Thermocouple Ultra-Precise High-Temp Sensing & Steady Thermal Response

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