ISO 9001:2015 Certified | Cage Code: 7L0f6

TYPICAL PROPERTIES of SEMITRON® ESD 490 HR

ASTM or UL test Property Semitron ESd 490HR
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.054
1.50
D570 Water Absorption, 24 hrs (%) 0.18
D570 Water Absorption, Saturation (%) 1.65
MECHANICAL
D638 Tensile Strength, Ultimate (psi) 14,000
D638 Tensile Modulus (psi) 940,000
D638 Tensile Elongation at Break (%) 2.3
D790 Flexural Strength (psi) 21,000
D790 Flexural Modulus (psi) 950,000
D695 Compressive Strength (psi) 26,000
D695 Compressive Modulus (psi) 600,000
D785 Hardness, Rockwell R123 / M105
D256 IZOD Notched Impact (ft-lb/in) 1.0
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
2.8
D648 Heat Deflection Temp (°F / °C)
at 264 psi
500 / 260
Max Operating Temp (°F / °C) 475 / 246
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10-4 cal/cm-sec-°C)

UL94 Flammability Rating V-0
ELECTRICAL
D149 Dielectric Strength (V/mil) short time, 1/8″ thick
D150 Dielectric Constant at 1 MHz 5.33
D150 Dissipation Factor at 1 MHz 0.227
EOS/ESD S11.11 Surface Resistivity (ohms/square) 109
– 1011
Mil-B-81705C Max Static Decay (seconds) < 2

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers’ complete material property datasheets.