Supplied with 3.1 and calibration certificates
Type K mineral insulated thermocouple cable
Type K mineral insulated (MI) thermocouple cable uses NiCr-Ni thermocouple conductors embedded in compacted mineral insulation and protected by a metal sheath. It is widely used for temperature measurement in high-temperature and harsh industrial environments. Kamet supplies Okazaki AerOpak® Type K MI cable from -270°C to +1260°C, with various sheath materials and diameters from 0.5 to 9.5 mm available as standard configurations.
Type K MI thermocouple cable specifications
The table below provides an overview of the main specifications of Okazaki AerOpak® Type K mineral insulated thermocouple cable supplied by Kamet.
| Specification | Type K AerOpak® |
|---|---|
| Thermocouple type | Type K |
| Thermocouple conductors | NiCr-Ni |
| Temperature range | -270°C to +1260°C |
| Insulation | MgO (+98% or +99.4%, depending on configuration) |
| Standard diameters | 0.50 – 9.50 mm |
| Class | IEC EN60584 class 1, ASTM E230 special limits or AMS2750 E |
| Manufacturer | Okazaki Manufacturing Company |
| Product family | AerOpak® |
| Certificates | 3.1 material and calibration certificates |
| Supply form | Coils or straight lengths |
| Minimum bending radius | 2× sheath diameter |
When should you use Type K MI thermocouple cable?
Type K MI thermocouple cable is a widely used choice for general-purpose temperature measurement because it combines a broad temperature range with good durability and relatively low cost. It is particularly suitable for oxidising atmospheres but should generally be avoided in reducing atmospheres. It is also cost-effective, making it a popular choice for various industrial and scientific applications. However, it is not suitable for reducing atmospheres, as it can degrade quickly in such conditions. Additionally, the Chromel leg can become brittle after prolonged exposure to high temperatures, and the thermocouple may exhibit calibration drift over time, especially when used at high temperatures.
Common applications of Type K thermocouples include general-purpose temperature measurement, kilns, and furnaces in the ceramics and metallurgy industries, gas turbine exhaust monitoring in aerospace and automotive industries, and low-temperature measurements in cryogenic scientific research.
The type K thermocouple wire of AerOpak is from European origin. More about this thermocouple wire can be found here.
Type K MI cable calibration up to 1100°C
Kamet can supply custom Okazaki Type K MI thermocouple cable calibrated up to 1100°C. Calibration is supplied with certification and is available for custom cable requests.
For further details about this service, do not hesitate to get in touch.
Available Type K MI cable sheath materials and diameters
Kamet offers a wide variety of type K MI cable from stock. Below you find a short summery of possible type K MI cable combinations with common sheath materials. The appropriate sheath material depends on operating temperature, atmosphere, corrosion resistance and application. Common Type K configurations include stainless steel and Inconel sheaths, while Pyrosil is available for more demanding high-temperature environments. Learn how to select the correct MI cable sheath material.
For more combinations with sheath material, diameter or wall features, we have a dedicated overview page that gives insight into all MI cable possibilities. For the complete range of type K cable possibilities, visit our overview page.
| Thermocouple | Sheath material | MgO Insulation | Class | Outside Diameters | On stock | |
|---|---|---|---|---|---|---|
| Type K | AISI 310S | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | AISI316L | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | AISI316Ti | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | AISI321 | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | AISI347 | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | AISI446 | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | Inconel 600 | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | Various diameters on stock | Send inquiry |
| Type K | Inconel 601 | +98% Normal purity | Class 1 | 0.50 mm to 9.50 mm | 20-22 week delivery time | Send inquiry |
| Type K | Pyrosil | +99.4% High purity | Class 1 | 6.00, 4.50 and 3.00 mm | Various diameters on stock | Send inquiry |
Delivery times stated are for delivery to Kamet’s warehouse
How can we help you today?
Request a quotation for the cable you need for your sensor.
Technical specifications of Okazaki AerOpak® Type K MI cable
- Available in IEC EN60584 class 1, ASTM E230 special limits or AMS2750 E
- Supplied in accordance with IEC 61515
- Supplied with a 3.1 certificate and a calibration certificate
- All raw material used in this cable is from European, American or Japan origin
- Delivered as coil. It can be ordered in straight lengths. These straight lengths will have a bow or curvature.
- Wall thickness is standard min. 10% of the diameter of the cable. In accordance to IEC61515. Other specifications on request available.
- Wire OD is standard min. 15% of the diameter, for simplex, duplex and triplex. In accordance to IEC61515. Please contact us if other specifications are needed.
- Can be bent around a mandrel having a radius equal to twice the sheath diameter without rupturing sheath or causing loss of insulation resistance.
- The sheath can be welded, brazed and soldered without changing insulation resistance using normal care for the metals and thickness involved.
- Specific dimensions tolerances as stated in ISO system of limits and fits are possible. For example h9 or other tolerances, are on request available available.
Type K thermocouple cable via Kamet
- Standard cables on stock with direct delivery
- 10-18 week delivery for non-stock items
- Supplied in whole coils or pieces
- 24/7 access to our stock via our digital portal. As customer you can browse our customer portal to gain insight into our stock, prices and available coils.
Maximum manufacturing lengths by Type K MI cable diameter
Maximum manufacturing coil length depends on cable diameter, sheath material and configuration. The values below are approximate manufacturing maxima; available stock coil lengths may differ. At the bottom of this page you will find a more detailed table with estimated coil lengths.
| Outside diameter (mm) | Φ0.50 | Φ1.00 | Φ1.60 | Φ3.20 | Φ4.80 | Φ6.40 | Φ8.00 |
|---|---|---|---|---|---|---|---|
| Manufacturing maximum length (m) | 280 | 400 | 160 | 365 | 160 | 90 | 60 |
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Type N
NiCrSil-NiSil thermocouple -270°C to +1260°C
Type J
Fe-CuNi thermocouple -210°C to +750°C
Type T
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Type E
NiCr-CuNi thermocouple -270°C to +900°C
Type S
PT10%RH-PT thermocouple -50°C to +1600°C
Type R
Pt13%Rh-Pt thermocouple -50°C to +1450°C