PROPERTIES OF POLYPROPYLENE EXTRUDED RODS
Property ASTM Polypropylene
Specific Gravity D769 0.902 - 0.910
P.S.I. Tensile Strength D638 4300 - 5500
% Elongation D638 200.0 - 700.0
P.S.I. Comprehensive Strength D695 5500 - 8000
Impact strength (1/2x1/2 in. notched) D256 0.5 - 2.280 (1/8 x 1/2 In bar)
Hardness Rockwell D785 80 -110
105 P.S.I. 73 0F Flexural Modulus D790 1.7 - 2.5
Coefficient of friction --- 0.3
-10 4cal sec cm3 C cm Thermal conductivity C177 2.8
Thermal Expansion 105 per 0C D696 5.8 - 10.2
Resistance to heat 0C (Continuous) --- 1100 C
- cm (23 0C50%) Volume resistivity D257 1016
1/8 in thickness volts mil Dielectric strength D149 500-650
1 KHz Dielectric constant D150 2.2 - 2.6
1 KHz Dissipation (power) factor D150 0.0005
0.0018
24 / j3.2 mm% Water absorption 24 hr. 3.2 thickness, % D570 0.01 - 0.03
in mm Burning rate D635 0.75 - 0.82
Effect of weak acids D534 None
Effect of strong acids D543 Attacked slowly by oxidizing acids
Effect of weak alkalies D543 None
Effect of Strong Alkalies D543 Resistant
Effect of organic solvents D543 Resistant below 800 C