eFunda Polymers: Properties of Polycarbonate {copolymer, polyester copolymer, high heat}
engineering fundamentals Polymer Material Properties
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Polycarbonate		  
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State: copolymer
Additives: polyester copolymer
Application: high heat
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   2208 - 2346  tensile   D638
Flexural Modulus (MPa)   2029 - 2346   23 ºC   D790
Tensile Strength (MPa)   66 - 78 at break   D638
  59 - 68 at yield   D638
Compressive Strength (MPa)
at yield or break		   80     D695
Flexural Strength (MPa)
at yield or break		   69 - 96     D790
Elongation at break (%)   50 - 122     D638
Hardness   74 - 92  Rockwell M   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.8 - 5.3     D256A

 Thermal Properties Conditions
Pressure State ASTM
Coef of Thermal Expansion (10-6/ºC)   70 - 92     D696
Deflection Temperature (ºC)  152 - 185   0.46 MPa   D648
 141 - 169   1.82 MPa   D648
Thermal Conductivity (W/m-ºC)  0.196 - 0.209     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.15 - 1.2   D792
Water Absorption (% weight increase)  0.15 - 0.2  after 24 hrs D570
Dielectric Strength (V/mil);
1/8" thick specimen unless noted		   509 - 520   D149

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  160 - 195  Tg, amorphous  
Processing Temperature (ºC)  302 - 377  injection molding  
Molding Pressure (MPa)   56 - 138    
Compression Ratio  1.5 - 3    
Linear Mold Shrinkage (cm/cm)  0.007 - 0.01   D955

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Suppliers
Ferro Corp. Cleveland, OH   
GE Plastics Pittsfield, MA  800-845-0600

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