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
Ω - 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