Fiberglass Rods Composite Properties

Properties

Test
Procedures

Solid 
Rod & Bar

Structural Profiles

Longi-
tudinal

Trans-
verse

Glass Content, % by weight

ASTM D2584

75*

65*

47

-

Tensile Strength,psi x 103

ASTM D3916/ D638

120

100

42.4

10.1

Tensile Modulus,psi x 106

ASTM D3916/ D638

6.0

5.5

2.66

1.05

Flexural Strength,psi x 103

ASTM D4476/ D790

120

100

64.6

21.4

Flexural Modulus,psi x 106

ASTM D4476/ D790

6.0

5.5

2.09

1.24

Compressive Strength,psi x 103

ASTM D695

70

60

26.25

-

Barcol Hardness

ASTM D2583

60

50

50

-

Izod Impact, ft.-lb./in.

ASTM D256

40

40

40

-

Specific Gravity

ASTM D792

2.0

1.9

1.72

-

Density, lbs./in3

ASTM D792

0.73

0.69

0.62

-

Water Absorption, %

(weight increase after24 hours immersion)

ASTM D570

.05

.10

.70

Coefficient of Thermal Expansion,
in./in./°C x 10-6 (Axial)

ASTM D696

5.3

-

-

-

Dielectric Strength, volts/mil.

(Method A, type 3 electrode)

ASTM D149

140

60

-

-

Dielectric Strength,kv./in.

(Method A,type 1 electrode)

ASTM D149

60

-

-

-

Dielectric Constant,60 Hz

ASTM D150

5.4

-

-

-

Arc Resistance,seconds

ASTM D495

120

-

-

-

Volume Resistivity,ohm-cm x 1014

ASTM D257

2.5

-

-

-