Mineral insulated cables

AS Composants has a complete range of mineral-insulated (MI) thermocouple cables, known for quality, robustness, and performance in extreme environments.

These cables consist of thermocouple wires surrounded by compacted magnesia (MgO) and inserted into a metallic sheath such as stainless steel or Inconel.

MI cables are used in many critical industrial sectors such as aerospace, nuclear power plants, chemical industry, marine applications, and semiconductors. Our company has stock available that can be supplemented by a European stock, ensuring quick availability and an e􀆯ective response to requests. All the sheathed cables o􀆯ered comply with international standards such as IEC 60584-2 Class 1, ASTM E230, and AMS2750G. They come with certificates guaranteeing their traceability and compliance.
The range of cables includes many sheath alloys, including AISI 316(L), 310, 321, Inconel 600, Inconel 625, Haynes, Hastelloy, platinum-rhodium, and other exotic materials such as molybdenum, titanium, and tantalum. Custom combinations of wires and sheaths are possible to meet specific needs. The cables are typically available in diameters ranging from 1mm to 10mm but other diameters are also possible.

These cables stand out for their excellent electrical resistance: their insulation resistance often exceeds 1000 MΩ, even at high temperatures. Their dielectric strength and low capacitance ensure a stable signal.
Finally, they can withstand temperatures ranging from -270 °C to 1650 °C, pressures up to 50,000 psi, and resist irradiated environments in nuclear facilities.