technical material specifications for carbon fiber rods, carbon fiber tubes, fiberglass rods

Carbon Tubes

Minimum Properties 
Tensile Strength240 ksi / 1.65 GPa
Tensile Modulus19.5 msi / 134 GPa
Ultimate Shear Strength6.0 ksi / 41.3 Mpa
Ultimate Tensile Strain1.40%
Flexural Strength200 ksi / 1.37 GPa
Flexural Modulus18.5 msi / 127 GPa
Fiber Volume60%
Thermal Expansion Coefficient-0.1 ppm/cm3 / -0.2 ppm/°C
Density.054 lbs/in3 / 1.5 g/cm3
Diameter Tolerance+.005/-.005″
Glass Transition Temperature100° C
Matrix MaterialBisphenol Epoxy Vinyl Ester

Carbon Rods

Minimum PropertiesStandard Modulus
Tensile Strength320 ksi / 2.34 GPa
Tensile Modulus19.5 msi / 134 GPa
Compressive Strength270 ksi / 1.90 GPa
Compressive Modulus19.0 msi / 131 GPa
Fiber Volume67%
Ultimate Tensile Strain1.30%
Diameter Tolerance+/-5%
Glass Transition Temperature100° C
Matrix MaterialBis F Epoxy
Minimum Properties 
Tensile Strength250 ksi / 1.72 GPa
Tensile Modulus20.0 msi / 138 GPa
Ultimate Shear Strength6.0 ksi / 41.3 Mpa
Ultimate Tensile Strain1.50%
Flexural Strength265 ksi / 1.83 GPa
Flexural Modulus19.0 msi / 131 GPa
Fiber Volume62%
Thermal Expansion Coefficient-0.1 ppm/cm3 / -0.2 ppm/°C
Density.054 lbs/in3 / 1.5 g/cm3
Diameter Tolerance+.005 / -.005″
Glass Transition Temperature100° C
Matrix MaterialBisphenol Epoxy Vinyl Ester
 DiameterWeight
(inch / mm)(lbs/1000 ft. / grams/meter)
Standard Modulus.019 / 0.480.37 / .55
Standard Modulus.027 / 0.690.37 / .55
Standard Modulus.037 / 0.940.74 / 1.10
Standard Modulus.052 / 1.321.48 / 2.20
Standard Modulus.063 / 1.602.22 / 3.30
Standard Modulus.098 / 2.495.19 / 7.72
Standard Modulus.125 / 3.188.90 / 13.24
Standard Modulus.156 / 3.9613.34 / 19.85

Fiberglass Rods

Pultruded Composites 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 HardnessASTM D2583

60

50

50

Izod Impact, ft.-lb./in.ASTM D256

40

40

40

Specific GravityASTM D792

2.0

1.9

1.72

Density, lbs./in3ASTM D792

.073

.069

.062

Water Absorption, %
(weight increase after
24 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

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

fiberglass rods