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Type K Thermocouple Bare Wire KP KN 0.5mm Diameter High Precision Temperature Sensor Wire
Type K Thermocouple Bare Wire KP KN 0.5mm Diameter High Precision Temperature Sensor Wire
Specifications
Brand Name :
Huona
Model Number :
Type K
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
10KG
Price :
Negotiable
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
500 tons per month
Delivery Time :
5-21 days
Packaging Details :
Carton/Wooden case
Alloy Grade :
Type K
Diameter :
0.5mm (±0.01mm)
Form :
Spool (100m/leg)
Accuracy Class :
IEC Class 1
Operating Temperature :
-200°C ~ 1260°C (continuous)
Tensile Strength :
≥650 MPa (KP/KN)
Elongation :
≥25%
Surface Finish :
Bright, oxide-free
Description

Type K Thermocouple Bare Wire (KP/KN) – 0.5mm Diameter


Product Overview


This Type K thermocouple bare wire from Huona is a precision-grade thermoelectric wire pair consisting of KP (Chromel, positive leg) and KN (Alumel, negative leg), designed for manufacturing custom temperature sensors and probes. Manufactured via vacuum melting, precision drawing, and stress-relief annealing, the wire maintains strict thermoelectric accuracy and mechanical stability, making it ideal for both laboratory and industrial temperature measurement applications.


Core Specifications


  • Product Name: Type K Thermocouple Bare Wire (KP/KN Pair)
  • Alloy Composition:
    • KP (Positive Leg): Chromel (Ni: ~90%, Cr: ~10%)
    • KN (Negative Leg): Alumel (Ni: ~95%, Al: ~2%, Mn: ~2%, Si: ~1%)

  • Diameter: 0.5mm (customizable: 0.1–3.0mm)
  • Tolerance: ±0.01mm
  • Form: Spool (standard length: 100m/leg; custom lengths available)
  • Thermoelectric Performance:
    • Accuracy Class: IEC Class 1 (±1.5°C or ±0.4% of reading, whichever is greater)
    • Thermoelectric Power: ~40.5 µV/°C at 100°C

  • Operating Temperature Range: -200°C ~ 1260°C (continuous use)
  • Standards Compliance: IEC 60584-1, ASTM E230, GB/T 4989, RoHS 2.0
  • Manufacturer: Huona (Shanghai) New Material Co., Ltd.


Key Differentiating Advantages


1. Precision Thermoelectric Consistency


Every production batch undergoes rigorous thermoelectric testing to ensure strict compliance with Type K standards. This eliminates measurement drift and ensures accurate, repeatable readings even in high-temperature or long-term use scenarios.

2. Excellent High-Temperature Oxidation Resistance


Chromel and Alumel alloys form stable oxide layers at elevated temperatures, providing superior oxidation resistance compared to other common thermocouple types. This extends service life in oxidizing industrial environments, reducing maintenance and replacement costs.

3. High Mechanical Strength & Flexibility


The wire’s fine-grained microstructure delivers a tensile strength ≥650 MPa and elongation ≥25%, making it suitable for both rigid probe construction and flexible installations requiring repeated bending.

4. Uniform Diameter & Surface Quality


Precision drawing ensures consistent diameter and a smooth, oxide-free surface, which simplifies welding, crimping, and insulation processes during sensor assembly.

5. Versatile Compatibility


Fully compatible with all standard Type K thermocouple accessories, including connectors, terminal blocks, and extension wires, allowing seamless integration into new or existing measurement systems.


Technical Specifications Table

Attribute Value (Typical)
Alloy Grade KP (Chromel) / KN (Alumel)
Diameter 0.5mm (±0.01mm)
Form Spool (100m/leg)
Accuracy Class IEC Class 1
Operating Temperature -200°C ~ 1260°C (continuous)
Tensile Strength ≥650 MPa (KP/KN)
Elongation ≥25%
Surface Finish Bright, oxide-free
Packaging Anti-oxidation spool packaging


Typical Applications


  • Custom Thermocouple Probes: Manufacturing of various types of temperature sensors, including exposed junction, grounded, and ungrounded probes.
  • Industrial Furnaces & Ovens: High-temperature monitoring in heat treatment processes, kilns, and industrial boilers.
  • HVAC & Building Automation: Temperature control in commercial heating, ventilation, and air conditioning systems.
  • Laboratory & R&D: Precision temperature measurement in thermal analysis equipment and material testing setups.
  • Automotive & Aerospace: Engine exhaust temperature monitoring and aircraft thermal management systems.

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Type K Thermocouple Bare Wire KP KN 0.5mm Diameter High Precision Temperature Sensor Wire

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Product Detail
Brand Name :
Huona
Model Number :
Type K
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
10KG
Price :
Negotiable
Contact Supplier
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Type K Thermocouple Bare Wire KP KN 0.5mm Diameter High Precision Temperature Sensor Wire

Huona (Shanghai) New Material Co., Ltd.

Verified Supplier
2 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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