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Premium KPKN Thermocouple Strip Type K 0.2*20mm Thermocouple Alloy Strip Durable for Temperature Monitoring and Control

Place of Origin Shanghai
Brand Name Huona
Certification ISO9001
Model Number Type K
Minimum Order Quantity 10KG
Price Negotiable
Packaging Details Carton/Wooden case
Delivery Time 5-21 days
Payment Terms L/C,T/T,Western Union
Supply Ability 500 tons per month
Product Details
Alloy Grade KP (Chromel) / KN (Alumel) Thickness 0.20mm (±0.005mm)
Width 20mm (±0.1mm) Form Coil
Thermoelectric Power (100℃) ~40.5μV/℃ (Type K Standard) Operating Temperature -200℃ ~ 1200℃ (continuous)
Tensile Strength ≥650MPa (KP/KN) Elongation ≥25% (KP/KN)
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KPKN thermocouple strip type K

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thermocouple alloy strip 0.2x20mm

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durable temperature monitoring thermocouple strip

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Product Description
KPKN Thermocouple Strip (Type K Thermocouple Alloy Strip)
KPKN thermocouple strip from Huona New Material is a precision cold-rolled alloy strip specifically designed for Type K thermocouple sensors and heating elements. It consists of two matching alloy strips: KP (Chromel, positive pole) and KN (Alumel, negative pole), which together form the core of Type K thermocouples. Manufactured via precision cold rolling and vacuum annealing, it delivers stable thermoelectric properties, excellent mechanical strength, and consistent performance across a wide temperature range.
Standard Designations & Core Specifications
  • Product Name: KPKN Thermocouple Strip (Type K Thermocouple Alloy Strip)
  • Alloy Composition: KP (Positive Pole): Chromel (Ni: ~90%, Cr: ~10%)
    KN (Negative Pole): Alumel (Ni: ~95%, Al: ~2%, Mn: ~2%, Si: ~1%)
  • Typical Dimensions: Thickness: 0.20mm (customizable: 0.05-3.0mm)
    Width: 20mm (customizable: 5-300mm)
    Form: Coil (standard: 100m/roll; cut-to-size sheets available)
    Tolerance: Thickness ±0.005mm, Width ±0.1mm
  • Key Thermoelectric Performance: Thermoelectric power (at 100℃): ~40.5μV/℃ (matches Type K standard)
    Operating temperature range: -200℃ ~ 1200℃ (continuous)
  • Compliant Standards: IEC 60584-1, ASTM E230, GB/T 4989, RoHS 2.0
  • Manufacturer: Huona New Material (Shanghai) Co., Ltd., certified to ISO 9001 and IATF 16949
Key Core Advantages
Stable Thermoelectric Performance
  • Precise Thermoelectric Output: Strictly matches the Type K thermocouple standard, ensuring accurate temperature measurement with minimal drift
  • Wide Temperature Range: Performs reliably from cryogenic temperatures (-200℃) up to high-temperature industrial environments (1200℃)
Excellent Mechanical Properties
  • High Strength & Ductility: Tensile strength ≥650MPa, elongation ≥25%, enabling easy stamping, bending, and forming into complex sensor shapes
  • Good Fatigue Resistance: Withstands repeated thermal cycling without cracking or performance degradation, ensuring long service life
Uniform Quality & Consistency
  • Precision Rolling: Tight thickness and width tolerances ensure uniform thermoelectric response across the entire strip
  • Controlled Annealing: Vacuum annealing eliminates residual stress, ensuring stable mechanical and thermoelectric properties
Versatile Processability
  • Easy Forming: Compatible with stamping, bending, punching, and riveting to produce thermocouple junctions and sensing elements
  • Weldability: Suitable for resistance welding, argon arc welding, and soldering, enabling seamless integration into thermocouple assemblies
Reliable Environmental Resistance
  • High Oxidation Resistance: KP and KN alloys exhibit excellent oxidation resistance at high temperatures, suitable for harsh industrial environments
  • Corrosion Resistance: Good resistance to atmospheric corrosion and mild chemicals, extending service life in industrial and laboratory settings
Technical Specifications
Attribute Value (Typical)
Alloy Grade KP (Chromel) / KN (Alumel)
Thickness 0.20mm (±0.005mm)
Width 20mm (±0.1mm)
Form Coil (100m standard) / Cut-to-size sheets
Thermoelectric Power (100℃) ~40.5μV/℃ (Type K standard)
Operating Temperature -200℃ ~ 1200℃ (continuous)
Tensile Strength ≥650MPa (KP/KN)
Elongation ≥25% (KP/KN)
Density ~8.4g/cm³ (KP), ~8.0g/cm³ (KN)
Surface Finish Bright/light oxide (standard)
Product Specifications
Item Specification
Supply Form Coil (100m/roll); cut-to-size sheets available
Dimensions 0.20mm (T) × 20mm (W) (customizable)
Surface Treatment Bright finish / pickled (optional)
Packaging Anti-corrosion paper + wooden reel (prevents oxidation and damage)
MOQ 50kg, small batches available for R&D
Customization Thickness/width/length; surface finish; annealing condition
Processability Stamping, bending, punching, riveting, resistance welding, argon arc welding
Typical Application Scenarios
  • Thermocouple Sensors: Core material for Type K thermocouple junctions, temperature probes, and sensing elements
  • Industrial Temperature Measurement: Used in furnaces, boilers, petrochemical plants, and power generation equipment
  • Heating Elements: High-temperature heating strips and resistors for industrial furnaces and laboratory equipment
  • Aerospace & Defense: Temperature sensors for aircraft engines, rocket systems, and military equipment
  • Laboratory & R&D: Precision temperature measurement in material testing, thermal analysis, and scientific research