High Temperature Insulation

Whale Brand Tufnol

Whale Brand Tufnol is a good general purpose grade suitable for mechanical applications. Whale Brand Tufnol has excellent all round physical properties with strength, good toughness and wear resistance. It is used for electrical insulation at low voltage only.

Applications:

A wide range of mechanical applications such as gears, spacers, jigs and fixtures, wear resistant components, low voltage insulation and many others.

Availability:

Typical Sheet Size (mm):  1200x1200 
Thickness (mm):  0.4 through to 228.4 
Rod Dia (mm):  6 through to 150 
Length (mm):  1200 up to 105mm Dia, 600 for larger sizes 

PAR can also supply tubular section, hexagonal bar and rectangular bar.

PAR can also offer Black Whale brand Tufnol and Graphite impregnated Whale Brand Tufnol. 

Specifications:

Sheet  BS EN 60893-3-4 Type PF CC 203 
Round Rod  BS EN 61212-3-3 Type PF CC 42 
Rectangular Bar  BS 6128 Part 4 Type PF CC 43 
Hexagon Bar  BS 6128 Part 6 Type PF CC 63 
Round Tube  BS EN 61212-3-2 Type PF CC 33 
Rectangular Tube  BS 6128 Part 13 Type PF CC 131 

Technical Specification:

Property  Unit  Result 
Cross Breaking Strength  MPa  130 
Impact Strength - notched - charpy  kJ/m²  11.5 
Compressive Strength - flatwise  MPa  310 
Compressive Strength - edgewise  MPa  200 
Shear Strength - flatwise  MPa  90 
Tensile Strength  MPa 68
Young's modulus GPa 6.3
Water Absorption - 1.6mm thick mg 90
Water Absorption - 3mm thick mg 105
Water Absorption - 6mm thick mg 130
Water Absorption - 12mm thick mg 160
Electric Strength flatwise in oil at 90ºC - 1.6mm thick MV/m 4.5
Electric Strength flatwise in oil at 90ºC - 3mm thick MV/m 2.6
Electric Strength flatwise in oil at 90ºC - 6mm thick MV/m 2.0
Electric Strength edgewise in oil at 90ºC KV 12
Insulation resistance after immersion in water ohms 1x108
Relative Density   1.36
Maximum Working Temperature - Continuous ºC 120
Maximum Working Temperature - Intermittent ºC 130
Thermal Classification   Class E
Thermal Conductivity through Laminae W/(mK) 0.32
Thermal Expansion in plane of Laminae X 10-5 / K 2.2
Specific Heat kJ / (kgK) 1.5
 

 

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