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Precious Metal Thermocouple Wire Type S
| Place of Origin | Shanghai |
|---|---|
| Brand Name | Huona |
| Certification | ISO9001 |
| Model Number | Type S |
| Minimum Order Quantity | 10g |
| Price | Negotiable |
| Packaging Details | Carton/Wooden case |
| Delivery Time | 5-21 days |
| Payment Terms | T/T,L/C,Western Union,MoneyGram |
| Supply Ability | 30000 meters per month |
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xProduct Details
| 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 |
| Highlight | Type S thermocouple wire,Precious metal thermocouple cable,High temperature thermocouple wire |
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Product Description
Precious Metal Thermocouple Wire Type S
Product Attributes
| Attribute | Value |
|---|---|
| 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 |
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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