Huona R-Type Thermocouple Wire (Class 1, 0.45mm Diameter)
Price:
Negotiable
MOQ:
5g
Delivery Time:
5-21 days
Brand:
Huona
Product Description
Huona R-Type Thermocouple Wire (Class 1, 0.45mm Diameter)
Product Overview
R-type thermocouple wire (Class 1, 0.45mm diameter) from Huona New Material is a high-precision noble metal temperature-sensing element composed of Pt13Rh (positive electrode, 13% rhodium-87% platinum alloy) and 99.99% pure platinum (negative electrode). Crafted via vacuum smelting, multi-pass precision drawing, and high-temperature annealing processes, this 0.45mm-diameter Class 1 wire maintains stable thermoelectric potential performance across 0-1300℃ (continuous) / 0-1600℃ (short-term). It integrates ultra-high measurement accuracy, excellent high-temperature oxidation resistance, and good mechanical ductility--making it the core material for high-precision temperature measurement in laboratories, aerospace, and high-temperature industrial processes (e.g., superalloy heat treatment, semiconductor manufacturing).
Standard Designations & Core Material Foundation
- Thermocouple Type: R-type (Pt13Rh/Pt; single platinum-rhodium thermocouple, compliant with IEC 60584-2 Class 1)
- Key Specification: 0.45mm diameter (tolerance: ±0.003mm); Class 1 (highest precision level)
- Chemical Composition: Positive electrode (RP): Pt87Rh13; Negative electrode (RN): 99.99% pure Pt
- Compliant Standards: IEC 60584-2, GB/T 1672-1997 (platinum-rhodium thermocouple wires), ASTM E230
- Manufacturer: Huona New Material, certified to ISO 9001 and IATF 16949, with specialized noble metal wire drawing lines (minimum diameter 0.05mm)
Key Core Advantages
1. Ultra-High Measurement Precision (Class 1)
- Top-Tier Accuracy: Meets Class 1 requirements (±1℃ at 0-1100℃; ±[1+0.003×(t-1100)]℃ at 1100-1600℃)--far exceeding industrial-grade thermocouples. This ensures traceable, reliable data for laboratory calibration equipment and aerospace component testing.
- Stable Thermoelectric Potential: After 1000 hours of continuous operation at 1200℃, thermoelectric potential drift is <2μV (equivalent to temperature error <0.2℃)--superior to S-type thermocouples in long-term high-temperature stability.
2. Optimized 0.45mm Diameter Performance
- Balanced Sensitivity & Strength: The 0.45mm diameter (thinner than standard 0.5mm R-type wire) reduces thermal response time (τ₅₀ ≤2s in air at 800℃) while maintaining tensile strength ≥350 MPa (annealed state)--resisting deformation in high-temperature, high-vibration environments (e.g., aircraft engines).
- Miniaturized Application Adaptability: Fits narrow measurement spaces (e.g., semiconductor wafer processing gaps, superalloy component surface grooves) without compromising measurement stability.
3. Excellent High-Temperature & Environmental Resistance
- Wide Temperature Range: Continuous operating temperature 0-1300℃; short-term (≤30min) up to 1600℃. The Pt13Rh/Pt alloy system forms a dense PtO₂ protective film, ensuring stable performance in high-temperature oxidizing/inert atmospheres (e.g., industrial furnace flue gas).
- Mechanical Ductility: Elongation ≥18% (annealed state) enables bending to a minimum radius of 0.9mm (2× diameter) without cracking--adapting to complex sensor packaging (e.g., coiled thermocouple probes).
Technical Specifications
| Attribute | Value (Typical) |
|---|---|
| Conductor Material | Positive (RP): Pt87Rh13; Negative (RN): 99.99% pure Pt |
| Diameter | 0.45mm (tolerance: ±0.003mm) |
| Thermoelectric Potential (1000℃ vs 0℃) | 10.503mV (complies with IEC 60584-2) |
| Operating Temperature Range | 0-1300℃ (continuous); 0-1600℃ (short-term ≤30min) |
| Accuracy Grade | Class 1 (IEC 60584-2) |
| Thermoelectric Potential Error | ±1℃ (0-1100℃); ±[1+0.003×(t-1100)]℃ (1100-1600℃) |
| Thermal Response Time (τ₅₀) | ≤2s (in air at 800℃) |
| Tensile Strength (Annealed) | 350-400 MPa |
| Elongation (25℃) | ≥18% |
| Resistivity (25℃) | Positive: ~0.24 μΩ*m; Negative: ~0.098 μΩ*m |
| Density | 21.5 g/cm³ (Pt13Rh); 21.45 g/cm³ (pure Pt) |
| Surface Finish | Bright annealed (Ra ≤0.1μm) |
Product Specifications
| Item | Specification |
|---|---|
| Supply Form | Spools (50m/100m per spool; spool diameter 100mm) |
| Cutting Precision | Cut-to-length (minimum 100mm, tolerance ±0.1mm) |
| Surface Treatment | Bright annealed (oxide-free); optional gold-plated coating (for enhanced corrosion resistance) |
| Packaging | Vacuum-sealed aluminum foil bags (with desiccants) + anti-collision cartons |
| Customization | Pre-welded thermocouple tips; diameter adjustment (0.3-0.6mm) |
Typical Application Scenarios
- Laboratory Calibration: Used as the core element of standard R-type thermocouples (for calibrating industrial high-temperature thermometers) -- Class 1 accuracy ensures data traceability to international standards.
- Aerospace Component Testing: Temperature monitoring of aircraft engine turbine blades (1200-1300℃) -- fast thermal response captures transient temperature changes during engine operation.
- Superalloy Heat Treatment: Thermal profiling of turbine disk annealing (1100-1200℃) -- 0.45mm diameter fits narrow furnace gaps, ensuring uniform component hardness.
- Semiconductor Manufacturing: Temperature sensing in wafer epitaxy equipment (800-1000℃) -- stable thermoelectric potential avoids process errors caused by temperature fluctuations.
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Company
Huona (Shanghai) New Material Co., Ltd.
Location
1900 Mudanjiang Road, Baoshan District, 201999, Shanghai, China
Contact Person
Roy