Type K Thermocouple Wire (Solid, 20AWG/21SWG, Fiberglass Insulation, 800℃)
Type K thermocouple wire from Huona New Material is a high-temperature sensor wire designed for direct connection to Type K thermocouple sensors. Featuring solid 20AWG/21SWG conductors, braided fiberglass insulation, and excellent thermal stability, it delivers reliable thermoelectric performance up to 800℃. Ideal for industrial furnaces, kilns, and high-temperature process monitoring.
Standard Designations & Core Specifications
- Model: K Type (Thermocouple Grade)
- Conductor Structure: 2-core solid (single solid wire per core, twisted pair)
- Conductor Gauge: 20AWG (equivalent to 21SWG)
- Conductor Diameter: ~0.81mm (20AWG solid)
- Conductor Material: Positive (KP): Chromel (Ni 90% / Cr 10%); Negative (KN): Alumel (Ni 95% / Al 2% / Mn 2% / Si 1%)
- Insulation Material: High-temperature braided fiberglass (rated to 800℃)
- Color Coding: ANSI standard - Yellow (KP) / Red (KN)
- Compliant Standards: IEC 60584-2, ASTM E230, ANSI MC96.1, GB/T 4989, RoHS 2.0
Key Advantages
Ultra-High Temperature Resistance
Braided fiberglass insulation withstands continuous operating temperatures up to 800℃, with short-term tolerance to 850℃. Insulation does not melt or degrade at high temperatures, ensuring long-term reliability in extreme heat environments.
Stable Thermoelectric Performance
Meets Class 1 accuracy standards with minimal signal drift. 20AWG solid conductors provide low electrical resistance and consistent signal transmission, reducing signal loss over distances.
ANSI-Standard Polarity Identification
ANSI-standard yellow (positive) / red (negative) color coding ensures clear polarity identification, eliminating installation errors and simplifying maintenance.
Robust Mechanical Strength
Braided fiberglass construction provides excellent abrasion resistance and mechanical protection. Twisted pair design minimizes electromagnetic interference and enhances signal integrity.
Flexible Installation & Compatibility
Highly flexible design suitable for routing in tight spaces. Compatible with all Type K thermocouple sensors and standard high-temperature temperature controllers.
Technical Specifications
| Attribute |
Value |
| Thermocouple Type |
Type K (Thermocouple Grade) |
| Conductor Structure |
2-core solid, twisted pair |
| Conductor Gauge |
20AWG (21SWG) |
| Conductor Diameter |
~0.81mm |
| Conductor Material |
Positive: Chromel; Negative: Alumel |
| Insulation Material |
Braided fiberglass (800℃ continuous rating) |
| Insulation Color (ANSI) |
Yellow (positive) / Red (negative) |
| Operating Temperature |
-60℃ ~ 800℃ (continuous); short-term up to 850℃ |
| Insulation Resistance |
≥100 MΩ*km (25℃) |
| Tensile Strength |
≥20MPa (conductor) |
Product Specifications
| Item |
Specification |
| Supply Form |
Reel (50m/100m/200m); custom cut-length available |
| Conductor Count |
2-core (standard) |
| Color Coding |
ANSI standard: Yellow (positive) / Red (negative) |
| Packaging |
Plastic reel + heat-shrink wrapping |
| Customization |
Conductor gauge (18AWG/22AWG available); insulation temperature rating (1000℃ ceramic insulation optional) |
| Application |
Industrial furnaces, ceramic kilns, heat treatment equipment, high-temperature process monitoring, laboratory furnaces |
Typical Application Scenarios
- Industrial Furnaces: Temperature measurement in steel reheat furnaces, annealing furnaces, and heat treatment ovens
- Ceramic & Glass Kilns: High-temperature monitoring in ceramic firing kilns and glass melting furnaces
- Laboratory Research: Precision temperature control in high-temperature laboratory furnaces and material testing equipment
- Power Generation: Boiler and exhaust gas temperature measurement in power plants
- Aerospace & Defense: High-temperature sensor wiring in aerospace testing and equipment
