Technical Information

Typical Watts Density:

A guide to Watts Density rating, for heating elements, for a wide range of materials.

Material being Heated Operating Temperature °C Watts Density W/cm²
Alkali Cleaning Solution 100 6.0
Asphalt, Tar, etc 90-250 1-1.5
Caustic Soda (75%) 80 4.0
Degreasing Solutions (Vapour) 135 3.0
Heat Tansfer Oils 320 3.0
Elements Cast into Aluminium 400max 8.0
Elenets Cast into Iron 550max 8.5
Ethylene Glycol 150 1.5
Fatty Acids 70 3.0
Fuel Oil 70 6.01.5
Freon 150 0.5
Glycerine 100 6.0
Water 100 15.0
Kerosene/Paraffin 150 0.5
Linseed Oil 70 8.0
Molten Salt Bath 400-500 4-5
Mineral Oil 100-200 2-3
Oil Quench Bath 200-300 3-4
Propylene Glycol 70 3.0
Trichlorethylene 70 3.0
Vegetable Oil 200 5-6

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