Machine Grade Polycarbonate is a transparent amorphous thermoplastic which offers very high impact strength and high modulus of elasticity. The material has a 290°F (145°C) heat deflection temperature at 264 psi, absorbs very little moisture and resists acidic solutions. These properties, in addition to good electrical characteristics, make Machine Grade Polycarbonate shapes an excellent choice for electrical/electronic applications. Its strength, impact resistance and transparency also make it an ideal material for certain transparent structural applications such as sight glasses and windows.
Unit of Measure
Weight |
N/A 6.820 lb/ft |
Specific Gravity (ASTM D792) |
N/A 1.20 |
Refractive Index at 77°F (ASTM D542A) |
N/A 1.586 |
Light Transmission - Average, 0.125" Disc |
N/A 86 % |
Hardness - Rockwell (ASTM D785) |
N/A R118/M70 |
Water Absorption, Equilibrium, 24 Hours (ASTM D570) |
N/A 0.15 % |
Tensile Strength at Yield (ASTM D638) |
N/A 9000 psi |
Tensile Strength - Ultimate (ASTM D638) |
N/A 9500 psi |
Tensile Modulus (ASTM D638) |
N/A 345000 psi |
Flexural Strength |
N/A 13500 psi |
Flexural Modulus |
N/A 345000 psi |
Compressive Strength |
N/A 12500 psi |
Compressive Modulus |
N/A 345000 psi |
Elongation (ASTM D638) |
N/A 110 % |
Poissons Ratio |
N/A 0.38 |
Izod Impact Strength - Notched at 0.125" (ASTM D256A) |
N/A 12 - 16 ft·lb/in |
Izod Impact Strength - Unnotched at 0.125" (ASTM D256A) |
N/A 60 ft·lb/in |
Shear Strength at Yield (ASTM D732) |
N/A 6000 psi |
Shear Strength - Ultimate (ASTM D732) |
N/A 10000 psi |
Shear Modulus (ASTM D732) |
N/A 114000 psi |
Coefficient of Linear Thermal Expansion |
N/A 3.75 x 10-5 in/in/ºF |
Heat Deflection Temperature at 264 psi |
N/A 270 ºF |
Heat Deflection Temperature at 66 psi |
N/A 280 ºF |
Brittle Temperature (ASTM D746) |
N/A -200 ºF |
Volume Resistivity (ASTM D257) |
N/A 8.2 x 1016 ohm·cm |