RAIL^® manufactures Nickel-Chrome and Iron-Chromium-Aluminum based Electrical Resistance Alloys which are used for high temperature applications.

Nickel-Chrome based alloy is ideal for applications up to 1200^◦C and which are subject to frequent switching and wide temperature fluctuations. It gives outstanding performance under the most exacting conditions.

Iron-Chromium-Aluminum Alloy offers higher surface load, higher resistivity and is suitable for temperature up to 1400^◦C. It offers better life compared to Nickel-Chrome alloy in sulphuric atmosphere.

RAIL^®-NC 80/20 is Nickel Chrome based alloy, whereas RAIL^®-HTM / RAIL^®-145A1 / RAIL^®-135D / RAIL^®-LT Plus and RAIL^®-2 are Iron-Chromium-Aluminum based alloys.

Thermocouple Alloys



Quality Grade – Type K

Thermocouple alloys are used in making thermocouple for temperature measurement.

Isatherm Plus^® & Isatherm Minus^® are Type K thermocouple alloys which are used in thermocouple for temperature measurement up to 1250^◦C.

Positive leg of thermocouple is denoted as KP and Negative leg is denoted as KN. Isatherm Plus^® is KP and Isatherm Minus^® is KN.

These wires conform to international standards like ASTM/ANSI/IEC/DIN/JIS and are available with standard as well as special limits of error.

Extension Grade - Type KX

Thermocouple extension wires are used for taking connections from thermocouple to instruments situated at remote locations. These wires are distinguished by additional letters ‘X’ viz. Isatherm Plus^® KPX and Isatherm Minus^® KNX.