PBT Properties

Physical, mechanical, thermal, electrical, and optical properties of PBT

TYPICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 8,690
Flexural Modulus of Elasticity psi D790 330,000
Izod Impact (notched) ft-lbs/in of notch D256 1.5
Heat Deflection Temperature (66psi / 264psi) °F D648 310   130
Water Absorption
(Immersion 24 hours)
% D570 0.08

 

PHYSICAL PROPERTIES
  UNITS ASTM TEST  
Specific Gravity - D792 1.30
Water Absorption
(Immersion 24 hours)
% D570 0.08

 

MECHANICAL PROPERTIES
  UNITS ASTM TEST  
Tensile Strength psi D638 8,690
Tensile Modulus of Elasticity psi D638 416,000
Tensile Elongation % D638 300
Flexural Strength psi D790 12,000
Flexural Modulus of Elasticity psi D790 330,000
Compressive Strength psi D695 -
Hardness scale as noted D785, D2240 M72
Izod Impact ft-lbs/in D256 1.5

 

THERMAL PROPERTIES
  UNITS ASTM TEST  
Coefficient of Linear Thermal Expansion in/in/°F x 10-5 D696 -
Heat Deflection Temperature (66psi / 264psi) °F D648 310   130
Max Continuous Service Temperature In Air °F - 245

 

ELECTRICAL PROPERTIES
  UNITS ASTM TEST  
Dielectric Strength V/mil D149 400

 

OPTICAL PROPERTIES
  UNITS ASTM TEST  
Light Transmittance % D1003 -
Haze % D1003 -

 

OTHER
  UNITS ASTM TEST  
Coefficient of Friction - Dynamic 0.25

Values may vary according to brand name. Please ask your Curbell Plastics representative for more specific information about an individual brand.

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