eFunda Polymers: Properties of Polypropylene {homopolymer, 20 - 30% long glass fiber reinforced}
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Polypropylene		  
List of Suppliers
State: homopolymer
Additives: 20 - 30% long glass fiber reinforced
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   5175 - 6210  tensile   D638
Flexural Modulus (MPa)   3795 - 5520   23 ºC   D790
Tensile Strength (MPa)   52 - 98 at break   D638
Compressive Strength (MPa)
at yield or break		   45 - 100     D695
Flexural Strength (MPa)
at yield or break		   69 - 158     D790
Elongation at break (%)   3 - 3     D638
Hardness  105 - 117  Rockwell R   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   1.9 - 4.1     D256A

 Thermal Properties Conditions
Pressure State ASTM
Deflection Temperature (ºC)  152   0.46 MPa   D648
 122 - 147   1.82 MPa   D648
Thermal Conductivity (W/m-ºC)  0.098     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.04 - 1.17   D792
Water Absorption (% weight increase)  0.05  after 24 hrs D570

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  168  Tm, crystalline  
Processing Temperature (ºC)  183 - 227  injection molding  
Linear Mold Shrinkage (cm/cm)  0.0025 - 0.004   D955

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Suppliers
DSM Engineering Plastic Products, Inc. Reading, PA  800-729-0101
LNP Engineering Plastics, Inc. Exton, PA  800-854-8774
Montell North America Wilmington, DE   
RTP Co. Winona, MN  800-433-4787
Ticona Summit, NJ  800-526-4960

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