MatWeb, The Online Materials Database

SABIC Innovative Plastics LEXAN 4504 Polycarbonate (North America)

Subcategory: Polycarbonate; Polymer; Thermoplastic

Close Analogs: Saudi Basic Industries Corporation (SABIC) announced on August 31st, 2007, the completion of its purchase of GE Plastics.

Material Notes:
Information provided by GE Plastics for their North American product line.

Physical Properties	Metric	English	Comments
Density	1.2 g/cc	0.0434 lb/in³	ASTM D 792
Water Absorption	0.16 %	0.16 %	24 hours @ 73F; ASTM D 570
Linear Mold Shrinkage	0.007 - 0.008 cm/cm	0.007 - 0.008 in/in	Flow, 0.125 inch; ASTM D 955
Melt Flow	3 g/10 min	3 g/10 min	300C/1.2 kgf (O); ASTM D 1238
Mechanical Properties
Hardness, Rockwell M	85	85	ASTM D 785
Hardness, Rockwell R	122	122	ASTM D 785
Tensile Strength @ Break	71.7 MPa	10400 psi	Type I, 2.0 in/min; ASTM D 638
Tensile Strength @ Yield	65.5 MPa	9500 psi	Type I, 2.0 in/min; ASTM D 638
Elongation at Break	122 %	122 %	Type I, 2.0 in/min; ASTM D 638
Flexural Modulus	2.03 GPa	294 ksi	0.05 in/min, 2" span; ASTM D 790
Flexural Yield Strength	95.1 MPa	13800 psi	0.05 in/min, 2" span; ASTM D 790
Izod Impact, Unnotched	32 J/cm	60 ft-lb/in	73F; ASTM D 4812
Tensile Impact Strength	578 kJ/m²	275 ft-lb/in²	Type "S"; ASTM D 1822
Falling Dart Impact	149 J	110 ft-lb	73F; ASTM D 3029
Izod Impact, Notched	6.41 J/cm	12 ft-lb/in	73F; ASTM D 256
Electrical Properties
Volume Resistivity	Min 2.6e+017 ohm-cm	Min 2.6e+017 ohm-cm	ASTM D 257
Dielectric Constant	3	3	1 MHz; ASTM D 150
Dielectric Constant	3.15	3.15	60 Hz; ASTM D 150
Dielectric Strength	20.3 kV/mm	515 V/mil	in air, 125 mils; ASTM D 149
Dissipation Factor	0.0012	0.0012	60 Hz; ASTM D 150
Dissipation Factor	0.024	0.024	100 Hz; ASTM D 150
Comparative Tracking Index	175 - 250 V	175 - 250 V	(+/- 0.125 inch); PLC Code 3; UL 746A
Hot Wire Ignition, HWI	30 - 60 sec	30 - 60 sec	(+/- 0.125 inch); PLC Code 2; UL 746A
High Amp Arc Ignition, HAI	Max 15 arcs	Max 15 arcs	Surface (+/- 0.125 inch); PLC Code 4; UL 746A
High Voltage Arc-Tracking Rate, HVTR	80 - 150 mm/min	3.15 - 5.91 in/min	(+/- 0.125 inch); PLC Code 3; UL 746A
Thermal Properties
CTE, linear 68°F	91.8 µm/m-°C	51 µin/in-°F	Flow, -40F to 200F; ASTM E 831
Specific Heat Capacity	1.26 J/g-°C	0.3 BTU/lb-°F	ASTM C 351
Thermal Conductivity	0.21 W/m-K	1.46 BTU-in/hr-ft²-°F	ASTM C 177
Deflection Temperature at 1.8 MPa (264 psi)	143 °C	290 °F	0.125 inch, unannealed; ASTM D 648
UL RTI, Electrical	125 °C	257 °F	UL 746B
UL RTI, Mechanical with Impact	125 °C	257 °F	UL 746B
UL RTI, Mechanical without Impact	125 °C	257 °F	UL 746B
Flammability, UL94	V-2	V-2	0.058 in.
Optical Properties
Refractive Index	1.6	1.6	ASTM D 542
Haze	1 %	1 %	0.100 inch; ASTM D 1003
Transmission, Visible	85 %	85 %	0.100 inch; ASTM D 1003
Descriptive Properties
UL File Number, USA	E121562