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30% Glass Fiber (30 GF) PAI

30 GF PAI is a grade of PAI. The graph bars on the material properties cards below compare 30 GF PAI to: imide plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Compressive (Crushing) Strength

300 MPa 44 x 103 psi

Elastic (Young's, Tensile) Modulus

6.9 GPa 1.0 x 106 psi

Elongation at Break

5.0 %

Flexural Modulus

6.8 GPa 1.0 x 106 psi

Flexural Strength

260 MPa 38 x 103 psi

Impact Strength: Notched Izod

110 J/m 2.0 ft-lb/in

Tensile Strength: Ultimate (UTS)

180 MPa 26 x 103 psi

Thermal Properties

Glass Transition Temperature

280 °C 530 °F

Heat Deflection Temperature At 1.82 MPa (264 psi)

280 °C 530 °F

Maximum Temperature: Autoignition

530 °C 980 °F

Maximum Temperature: Decomposition

490 °C 910 °F

Maximum Temperature: Mechanical

260 °C 500 °F

Specific Heat Capacity

930 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

0.36 W/m-K 0.21 BTU/h-ft-°F

Thermal Expansion

17 µm/m-K

Other Material Properties

Density

1.6 g/cm3 99 lb/ft3

Dielectric Strength (Breakdown Potential)

28 kV/mm 1.1 V/mil

Limiting Oxygen Index (LOI)

45 %

Water Absorption After 24 Hours

0.3 %

Water Absorption At Saturation

1.5 %

Common Calculations

Stiffness to Weight: Axial

2.4 points

Stiffness to Weight: Bending

40 points

Strength to Weight: Axial

31 points

Strength to Weight: Bending

44 points

Thermal Diffusivity

0.24 mm2/s

Thermal Shock Resistance

110 points

Followup Questions

Further Reading

Reinforced Plastics Durability, Geoffrey Pritchard (editor), 1999

SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000

Modern Plastics Handbook, Charles A. Harper (editor), 1999

Plastics Materials, 7th ed., J. A. Brydson, 1999