Semitron Static Dissipative Acetal…
Mechanical | ASTM Test Method | Value | Units |
---|---|---|---|
Strength to Weight Ratio | - | 4.1 | ksi |
Specific Gravity @73 F | D792 | 1.33 | - |
Tensile Strength @73 F, (ult)/(yld) | D638 | 5,400 (ult) | psi |
Tensile Modulus of Elasticity @73 F | D638 | 200,000 | psi |
Tensile Elongation at Break @73 F | D638 | 15 | % |
Flexural Strength @73 F | D790 | 7,300 | psi |
Flexural Modulus of Elasticity @73 F | D790 | 220,000 | psi |
Shear Strength @73 F | D732 | - | psi |
Comprehensive Strength, (% Deformation) @73 F | D695 | 8,000 (10) | psi |
Comprehensive Modulus of Elasticity @73 F | D695 | 175,000 | psi |
Hardness, Rockwell, Scale as noted @73 F | D785 | M50 (R108) | - |
Hardness, Durometer, Shore D @73 F | D2240 | - | - |
Izod Impact, (Notched) @73 F | D256 Type A | 1.5 | ft-lb/in of notch |
Coefficient of Friction, (Dry vs Steel) Dynamic | - | 0.29 | - |
Limiting PV, (with 4 to 1 factor of safety applied) | - | 2,200 | psi-ft/min |
Thermal | ASTM Test Method | Value | Units |
---|---|---|---|
Coefficient of Linear Thermal Expansion @73 F | E-831 (TMA) | 9.3 E-05 | in/in/F |
Heat Deflection Temperature @264 psi | D648 | 225 | F |
Tg-Glass transition termperature, (Amorphous) | D3418 | - | F |
Melting Point, (VS=Vicat Softening Temp.) | D3418 | 320 | F |
Continuous Service Temperature in Air, (Max.) | - | 180 | F |
Thermal Conductivity | - | - | BTU-in/hr-ft2-F |
Electric | ASTM Test Method | Value | Units |
---|---|---|---|
Dielectric Strength, Short Term | D149 | - | Volts/mil |
Volume Resistivity | D257 | 1E11 - 1E12 | ohm-cm |
Dielectric Constant @10E6 Hz | D150 | - | - |
Dissipation Factor @10E6 Hz | D150 | - | - |
Flammability @3.1 mm unless noted | UL94 | HB | - |
H2O | ASTM Test Method | Value | Units |
---|---|---|---|
Water Absorption, Immersion, 24 hours | D570(7) | 2.0 | % by weight |
Water Absorption, Saturation | D570(7) | 7.20 | % by weight |