Transcal™ N is a high quality mineral oil possessing low vapour-pressure characteristics as well as high levels of thermal stability, specific heat and thermal conductivity.


Transcal N is recommended for non-pressurised, closed liquid-phase heating systems operating at bulk-fluid temperatures up to 320ºC, and a maximum film temperature of 340ºC.

Such systems are used widely in the food, construction, plastics, timber, oil and gas processing and on ships and where waste heat is extracted from flue gases.

Typical Characteristics

Name Method Units Transcal N
Density at 15°C ASTM D1298 g/ml 0.875
Flash Point, PMCC ISO 2719, ASTM D93 °C 210
Flash Point, COC ISO 2592, ASTM D92 °C 221
Fire Point ISO 2592, ASTM D92 °C 243
Viscosity @ 40°C ISO 3014, ASTM D445 mm²/s 31
Viscosity @ 100°C ISO 3014, ASTM D445 mm²/s 5.2
Pour Point ASTM D97 °C -12
Autogenous-ignition Temperature ASTM D2155 °C 350
Neutralisation Value ASTM D974 mgKOH/g <0.05
Ramsbottom Carbon Residue ISO 4262, ASTM D524 % wt <0.05
Coefficient of Thermal Expansion   per °C 0.00077
Normal Operating Range of Bulk Temperatures   °C -10 to 320

The above figures are typical of those obtained with normal production tolerance and do not constitute a specification.

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