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Precious Metal Thermocouple Wire Type S
Precious Metal Thermocouple Wire Type S
Specifications
Brand Name :
Huona
Model Number :
Type S
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
10g
Price :
Negotiable
Payment Terms :
T/T,L/C,Western Union,MoneyGram
Supply Ability :
30000 meters per month
Delivery Time :
5-21 days
Packaging Details :
Carton/Wooden case
Product Name :
Thermocouple Wire Type S
Positive :
PtRh10
Negative :
Pt
Anode wire density :
20 g/cm³
Cathode wire density :
21.45 g/cm³
Anode Wire Resistivity(20℃)/(μΩ·cm) :
18.9
Cathode Wire Resistivity(20℃)/(μΩ·cm) :
10.4
Tensile Strength(MPa) :
SP:314; SN:137
Description

Product Overview​


Precious metal thermocouple wire Type S, also known as Platinum-Rhodium 10-Platinum thermocouple wire, is a high-precision temperature sensing element composed of two precious metal conductors. The positive leg (RP) is a platinum-rhodium alloy containing 10% rhodium and 90% platinum, while the negative leg (RN) is pure platinum. It offers exceptional accuracy and stability in high-temperature environments, making it the preferred choice for precise temperature measurement in metallurgy, ceramics, and high-temperature industrial furnaces.​
Standard Designations​
  • Thermocouple Type: S-type (Platinum-Rhodium 10-Platinum)​
  • IEC Standard: IEC 60584-1​
  • ASTM Standard: ASTM E230​

Key Features​
  • Wide Temperature Range: Long-term use at up to 1300°C; short-term use up to 1600°C​
  • High Accuracy: Class 1 accuracy with a tolerance of ±1.5°C or ±0.25% of reading
  • Excellent Stability: Less than 0.1% drift in thermoelectric potential after 1000 hours at 1000°C​
  • Good Oxidation Resistance: Stable performance in oxidizing and inert atmospheres​
  • Low Thermoelectric Potential: Generates 6.458 mV at 1000°C (reference junction at 0°C)​
Technical Specifications​
​

Attribute​
Value​
Wire Diameter​
0.5mm (allowable deviation: -0.015mm)​
Thermoelectric Power (1000°C)​
6.458 mV (vs 0°C reference)​
Long-Term Operating Temperature​
1400°C​
Short-Term Operating Temperature​
1500°C (≤50 hours)​
Tensile Strength (20°C)​
≥120 MPa​
Elongation​
≥30%​
Electrical Resistivity (20°C)​
Positive leg: 0.21 Ω·mm²/m; Negative leg: 0.098 Ω·mm²/m​



​
Chemical Composition (Typical, %)​
​

Conductor​
Main Elements​
Trace Elements (max, %)​
Positive Leg (Platinum-Rhodium 10)​
Pt:90, Rh:10​
Ir:0.02, Ru:0.01, Fe:0.005, Cu:0.002​
Negative Leg (Pure Platinum)​
Pt:≥99.99​
Rh:0.005, Ir:0.002, Fe:0.001, Cu:0.001​



​
Product Specifications​
​

Item​
Specification​
Length per Spool​
10m, 20m, 50m,




Surface Finish​
Bright, annealed​
Packaging​
Vacuum-sealed in inert gas-filled containers to prevent contamination​
Calibration​
Traceable to national standards with calibration certificates​
Custom Options​
Custom lengths, special cleaning for high-purity applications​



​
Typical Applications​
  • High-temperature sintering furnaces in powder metallurgy​
  • Glass manufacturing and forming processes​
  • Ceramic kilns and heat treatment equipment​
  • Vacuum furnaces and crystal growth systems​
  • Metallurgical smelting and refining processes​
We also provide S-type thermocouple assemblies, connectors, and extension wires. Free samples and detailed technical datasheets are available upon request. For critical applications, we offer additional certification of material purity and thermoelectric performance.
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Precious Metal Thermocouple Wire Type S

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Product Detail
Brand Name :
Huona
Model Number :
Type S
Certification :
ISO9001
Place of Origin :
Shanghai
MOQ :
10g
Price :
Negotiable
Contact Supplier
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Precious Metal Thermocouple Wire Type S

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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