Semitron

SEMITRON-500x500

Semitron 520HR

GENERAL PROPERTIES ASTM OR UL TEST TYPICAL VALUES
ESD 520 HR
Colour Khaiki grey
PHYSICAL PROPERTIES
Specific Gravity (g/cm³) D792 1.58
Water Absorption,24 hrs (%) D570 0.60
MECHANICAL PROPERTIES
Tensile Strength (psi) D638 12,000
Tensile Modulus (psi) D638 800,000
Tensile Elongation at Yield (%) D638 3
Flexural Strength (psi) D790 20,000
Flexural Modulus (psi) D790 850,000
Compressive Strength (psi) D695 30,000
Compressive Modulus (psi) D695 600,000
Hardness,Rockwell D785 M108
IZOD Notched  Strength (ft-lb/in) D256 0.8
THERMAL PROPERTIES
Coeff. Of Thermal Expansion (x 10¯⁵in/in/°F) E831 2.8
Heat Deflection Temp (°F/°C) @ 264 psi D648 520/271
Max Operating Temp (°F/°C) 500/260
Thermal Conductivity BTU-in/ft²-hr-°F) F433 2.6
Flammability rating UL-94 V-0
ELECTRICAL PROPERTIES
Dielect.Strength (V/mil) short time,1/8″ thk D149
Surface Resistivity (ohm-cm) at 50% RH EOS/ESD S11.11 10¹⁰- 10¹¹

ADVANTAGES:
* Surface and volume resistivity in the range of 10¹⁰ to 10¹¹ ohms/sq
* High stiffness / strength
* Dimensional stability
* Thermally stable to temperature of 520°F /270°C without degradation

Semitron 420HR

GENERAL PROPERTIES ASTM OR UL TEST TYPICAL VALUES TYPICAL VALUES
ESD 420 ESD 420 V
Colour Black
PHYSICAL PROPERTIES
Specific Gravity (g/cm³) D792 1.34 1.51
Water Absorption,24 hrs (%) D570 0.50 0.21
MECHANICAL PROPERTIES
Tensile Strength (psi) D638 11,500 10,000
Tensile Modulus (psi) D638 650,000 910,000
Tensile Elongation at Yield (%) D638 2 1.5
Flexural Strength (psi) D790 14,500 15,800
Flexural Modulus (psi) D790 650,000 910,000
Compressive Strength (psi) D695 23,800 22,300
Compressive Modulus (psi) D695 370,000 545,000
Hardness,Rockwell D785 M118 M110
IZOD Notched  Strength (ft-lb/in) D256 1.0 0.5
THERMAL PROPERTIES
Coeff. Of Thermal Expansion (x 10¯⁵in/in/°F) E831 1.95 1.5
Heat Deflection Temp (°F/°C) @ 264 psi D648 410/210 420/216
Glass Transition Temp  (°F/°C) D3418 410/210 420/216
Max Operating Temp (°F/°C) 340/171 340/171
Thermal Conductivity BTU-in/ft²-hr-°F) F433 1.51
Flammability rating UL-94 V-0 V-0
ELECTRICAL PROPERTIES
Dielect.Strength (V/mil) short time,1/8″ thk D149
Dissipation Factor at 1 MHz D150
Surface Resistivity (ohm-cm) at 50% RH EOS/ESD S11.11 10⁶-10⁹ 10⁶-10⁹

ADVANTAGES:
* Thermally stable to temperatures of 420°F (215°C)
* High mechanical Strength
* Easily machined to tight tolerances
* UL94 V-O rated