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Huona Type K Thermocouple Mineral Insulated (MI) Cable 3.0mm Diameter, SS316 Sheath
Product Details
| Grade | Type K | Sheath Material | 316 Stainless Steel |
|---|---|---|---|
| Insulation Material | Magnesium Oxide (MgO) | Standard Diameter | 3.0mm (±0.05mm) |
| Core Configuration | 2-core | Standard Length | 100m/coil |
| Accuracy Class | IEC Class 1 | Continuous Operating Temp | -200°C ~ 1100°C |
| Highlight | Type K thermocouple mineral insulated cable,SS316 sheathed thermocouple cable,3.0mm diameter MI thermocouple |
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Product Description
Type K Thermocouple Mineral Insulated (MI) Cable – 3.0mm Diameter, SS316 Sheath
Product Overview
This Type K mineral insulated (MI) thermocouple cable from Huona is a robust, fully enclosed temperature sensing solution, engineered for high-temperature, high-pressure, and vibration-intensive industrial environments. Constructed with a Type K thermocouple core (KP/KN Chromel/Alumel), high-purity magnesium oxide insulation, and a durable 316 stainless steel sheath, this cable offers unparalleled mechanical strength, chemical resistance, and long-term stability. Unlike bare thermocouple wires, the MI construction protects the sensing element from contamination, oxidation, and physical damage, making it ideal for demanding applications in power generation, petrochemical, and metal processing industries.
Core Specifications
- Product Name: Type K Mineral Insulated (MI) Thermocouple Cable
- Thermocouple Grade: Type K (KP Chromel / KN Alumel)
- Sheath Material: 316 Stainless Steel (SS316)
- Insulation Material: High-purity Magnesium Oxide (MgO)
- Standard Diameter: 3.0mm (customizable: 1.0–6.0mm)
- Core Configuration: 2-core (KP/KN)
- Standard Length: 100m/coil (custom cut lengths available)
- Tolerance: Diameter ±0.05mm
- Accuracy Class: IEC Class 1 (±1.5°C or ±0.4% of reading, whichever is greater)
- Continuous Operating Temperature: -200°C ~ 1100°C (SS316 sheath)
- Maximum Short-Term Temperature: 1150°C
- Standards Compliance: IEC 60584-1, ASTM E230, GB/T 30427, RoHS 2.0
Key Differentiating Advantages
1. Rugged, Contamination-Resistant Construction
The hermetically sealed SS316 sheath and high-purity MgO insulation create a barrier against moisture, gases, and corrosive environments. This eliminates the risk of thermocouple drift caused by contamination, ensuring consistent, accurate readings even in harsh industrial conditions.
2. Excellent Mechanical Strength & Flexibility
The stainless steel sheath provides exceptional tensile strength, crush resistance, and vibration tolerance, making the cable suitable for installation in high-vibration equipment, furnaces, and pipelines. It also offers good flexibility, allowing for easy bending and forming around complex geometries.
3. Stable Performance at High Temperatures
The MI construction prevents oxidation of the thermocouple wires, extending service life compared to bare wires at temperatures above 800°C. The MgO insulation maintains its dielectric strength at high temperatures, ensuring reliable electrical isolation between the thermocouple core and the sheath.
4. Versatile Sheath Material Options
While this standard grade uses SS316, we also offer optional sheath materials such as Inconel 600 or 310S for higher temperature (up to 1260°C) or more corrosive environments, providing tailored solutions for specific application requirements.
5. Simplified Probe Fabrication
The cable can be easily cut, bent, and terminated on-site to create custom thermocouple probes with various junction types (grounded, ungrounded, exposed), making it highly versatile for different installation needs.
Technical Specifications Table
| Attribute | Typical Specification |
|---|---|
| Thermocouple Type | Type K (KP/KN) |
| Sheath Material | 316 Stainless Steel |
| Insulation Material | Magnesium Oxide (MgO) |
| Standard Diameter | 3.0mm (±0.05mm) |
| Core Configuration | 2-core |
| Standard Length | 100m/coil |
| Accuracy Class | IEC Class 1 |
| Continuous Operating Temp | -200°C ~ 1100°C |
| Dielectric Strength | ≥500V DC (room temperature) |
| Insulation Resistance | ≥1000 MΩ·cm (room temperature) |
| Bending Radius | 5x cable diameter |
Supply & Packaging Standard
- Supply Form: Continuous coils of MI thermocouple cable, available in standard lengths or custom cut-to-size pieces
- Packaging: Coils are protected with anti-rust paper and sealed in moisture-proof plastic packaging, suitable for export
- MOQ: 1 coil (sample order); bulk quantities available for industrial OEMs
- Customization: Diameter, length, sheath material (SS316/Inconel 600/310S), and core configuration (2/4-core) available upon request
Typical Application Scenarios
- Power Generation: Boiler, turbine, and exhaust gas temperature monitoring in coal-fired and gas-fired power plants.
- Petrochemical & Refining: Temperature measurement in reactors, furnaces, and pipelines handling corrosive fluids.
- Metal Processing: High-temperature sensing in steel reheating furnaces, annealing ovens, and continuous casting lines.
- HVAC & Building Automation: Temperature control in industrial ovens, kilns, and process heating equipment.
- Aerospace & Defense: Thermal testing and monitoring in high-temperature engine components and industrial furnaces.
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