Americas Styrenics STYRON® EA6740 High Impact Polystyrene

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Americas Styrenics STYRON® EA6740 High Impact Polystyrene
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes:	Product Characteristics Very good printability Matte surface finish High heat distortion temperature Good low temperature toughness Food Contact Compliant Typical Applications Appliances Packaging and one-time use items Printed toys and games Point of purchase displays Silk screen printing Information provided by AmericasStyrenics LLC.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.04 g/cc	1.04 g/cc	ASTM D792
Linear Mold Shrinkage	0.0040 - 0.0080 cm/cm	0.0040 - 0.0080 in/in	ASTM D955
Melt Flow	3.2 g/10 min @Load 5.00 kg, Temperature 200 °C	3.2 g/10 min @Load 11.0 lb, Temperature 392 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	99.0	99.0	ASTM D785
Tensile Strength at Break	18.6 MPa	2700 psi	ASTM D638
Tensile Strength	19.3 MPa	2800 psi	ASTM D638
Elongation at Break	75 %	75 %	ASTM D638
Tensile Modulus	1.59 GPa	230 ksi	ASTM D638
Flexural Strength	29.0 MPa	4200 psi	ASTM D790
Flexural Modulus	1.59 GPa	230 ksi	ASTM D790
Izod Impact, Notched	1.01 J/cm	1.90 ft-lb/in	compression molded; ASTM D256
	1.44 J/cm	2.70 ft-lb/in	injection molded; ASTM D256

Thermal Properties	Metric	English	Comments
CTE, linear	90.0 µm/m-°C	50.0 µin/in-°F	ASTM D696
Deflection Temperature at 0.46 MPa (66 psi)	88.9 °C	192 °F	ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	81.1 °C	178 °F	ASTM D648
Vicat Softening Point	100 °C	212 °F	ASTM D1525

Processing Properties	Metric	English	Comments
Nozzle Temperature	213 - 243 °C	415 - 469 °F	Injection Molding
Zone 1	177 - 193 °C	351 - 379 °F	Extrusion Molding
	218 - 249 °C	424 - 480 °F	Injection Molding
Zone 2	182 - 204 °C	360 - 399 °F	Extrusion Molding
	218 - 249 °C	424 - 480 °F	Injection Molding
Zone 3	188 - 210 °C	370 - 410 °F	Extrusion Molding
	199 - 213 °C	390 - 415 °F	Injection Molding
Zone 4	199 - 216 °C	390 - 421 °F	Extrusion Molding
Zone 5	204 - 221 °C	399 - 430 °F	Extrusion Molding
Die Temperature	199 - 232 °C	390 - 450 °F	Extrusion Molding
Melt Temperature	193 - 232 °C	379 - 450 °F	Extrusion Molding
Back Pressure	2.00 - 12.0 MPa	290 - 1740 psi	Injection Molding

Descriptive Properties
Head Pressure	10-21 MPa
Melt Pump, Adapter, Pipes, Screen Changer	193-232°C
Polish Rolls	66-104°C
Zone # 6	204-221°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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Americas Styrenics EA6740 High Impact Polystyrene

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