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Physical Properties for Fiberglass Structural Shapes

Fiberglass Structural Shapes

The values listed below are test results from coupon tests preformed in accordance with the designated ASTM Test.

Mechanical Properties
PropertiesASTMUnitValue
Tensile Stress, LWD-638psi30,000
Tensile Stress, CWD-638psi7,000
Tensile Modulus, LWD-638106 psi2.5
Tensile Modulus, CWD-638106 psi0.8
Compressive Stress, LWD-695psi30,000
Compressive Stress, CWD-695psi15,000
Compressive Modulus, LWD-695106 psi2.5
Compressive Modulus, CWD-695106 psi1.0
Flexural Stress, LWD-790psi30,000
Flexural Stress, CWD-790psi10,000
Flexural Modulus, LWD-790106 psi1.8
Flexural Modulus, CWD-790106 psi0.8
Modulus of Elasticity, EFull section106 psi2.8
Shear Modulus-106 psi0.450
Short Beam ShearD-2344psi4,500
Punch ShearD-732psi10,000
Bearing Stress, LWD-953psi30,000
Notched Izod Impact, LWD-256ft-lbs/in25
Notched Izod Impact, CWD-256ft-lbs/in4
Physical Properties
PropertiesASTMUnitValue
Barcol HardnessD-495-45
24 Hour Water AbsorptionD-570% max0.45
DensityD-792lbs/in30.062-0.070
Coefficient of Thermal Expansion, LWD-69610-6 in/in/°C8
Electrical Properties
PropertiesASTMUnitValue
Arc Resistance, LWD-495Seconds120
Dielectric Strength, LWD-149kv/in35
Dielectric Strength, PFD-149volts/mil200
Dielectric Constant, PFD-150@60Hz5
  • LW = Lengthwise
  • CW = Crosswise
  • PF = Perpendicular to Laminated Face
Title: Physical Properties for Fiberglass Structural Shapes
Description: Physical, Mechanical, and Thermal Typical Properties.
Published: 2/17/2009
Last Edited: 1/6/2023
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