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Rulon Bearings

Versalis Edistir RT 441M Polystyrene
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified
Material Notes: High impact polystyrene combining high toughness and high stiffness with good flowability for easy processing. Designed for injection moulding of technical parts, housings and covers. Especially recommended for gas assisted technology. RT 441M is certified BSI 415/94 acc. IEC65-20-2 at 2.5 mm.

Designation: Thermoplastics ISO 2897-PS-I,M,088-06-07-18

Applications: Business machine covers, electrical appliances, electroventilator housings, consumer electronics, front frames, cabinet and back cover for TV sets.

RT 441M is certified UL94 HB "all colors" at 1.5 mm (UL file E83071). This grade in its natural version complies by composition with the requirements set by the main Regulations for plastic materials intended for food contact (including the EEC Directive 90/128 and subsequent amendments).

Information provided by Polimeri Europa

Versalis is the Eni subsidiary containing the plastics and rubber businesses.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Bulk Density 0.650 g/cc0.0235 lb/in³ISO 60
Density 1.04 g/cc0.0376 lb/in³ISO 1183
Water Absorption <= 0.10 %<= 0.10 %24 hours - 23°C; ISO 62
Linear Mold Shrinkage 0.0040 - 0.0070 cm/cm0.0040 - 0.0070 in/inInternal Method
Melt Flow 7.5 g/10 min
@Load 5.00 kg,
Temperature 200 °C		7.5 g/10 min
@Load 11.0 lb,
Temperature 392 °F		ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell L 7575ISO 2039/2
Tensile Strength at Break 24.0 MPa3480 psi50 mm/min; ISO 527
Tensile Strength, Yield 22.0 MPa3190 psi50 mm/min; ISO 527
Elongation at Break 60 %60 %50 mm/min; ISO 527
Tensile Modulus 2.00 GPa290 ksi1 mm/min; ISO 527
Flexural Strength 45.0 MPa6530 psi2 mm/min; ISO 178
Izod Impact, Notched 1.10 J/cm
@Thickness 3.20 mm,
Temperature 23.0 °C		2.06 ft-lb/in
@Thickness 0.126 in,
Temperature 73.4 °F		ISO 180/4A
Izod Impact, Notched (ISO)  6.00 kJ/m²
@Thickness 4.00 mm,
Temperature -30.0 °C		2.86 ft-lb/in²
@Thickness 0.157 in,
Temperature -22.0 °F		ISO 180/1A
 8.00 kJ/m²
@Thickness 4.00 mm,
Temperature 23.0 °C		3.81 ft-lb/in²
@Thickness 0.157 in,
Temperature 73.4 °F		ISO 180/1A
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 7.00e+15 ohm-cm7.00e+15 ohm-cmIEC 60093
Surface Resistance 1.50e+15 ohm1.50e+15 ohmIEC 60093
Dielectric Constant 2.5
@Frequency 50 Hz		2.5
@Frequency 50 Hz		IEC 60250
Dielectric Strength 65.0 kV/mm1650 kV/inIEC 60243
Dissipation Factor 0.00030
@Frequency 50 Hz		0.00030
@Frequency 50 Hz		IEC 60250
Comparative Tracking Index 500 V500 VSolution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear 90.0 µm/m-°C
@Temperature 20.0 °C		50.0 µin/in-°F
@Temperature 68.0 °F		ASTM D 696
Thermal Conductivity 0.170 W/m-K1.18 BTU-in/hr-ft²-°FISO 8302
Deflection Temperature at 1.8 MPa (264 psi) 84.0 °C183 °F120°C/h; ASTM D 648
Vicat Softening Point 89.0 °C192 °F50 N - 50°C/h; ISO 306/B
 97.0 °C207 °F10 N - 50°C/h; ISO 306/A
Flammability, UL94 HB
@Thickness 1.50 mm		HB
@Thickness 0.0591 in		UL94
Glow Wire Test 650 °C
@Thickness 1.60 mm		1200 °F
@Thickness 0.0630 in		IEC 60695-2-1
 
Processing PropertiesMetricEnglishComments
Melt Temperature 210 - 260 °C410 - 500 °FInjection Molding
Mold Temperature 20.0 - 60.0 °C68.0 - 140 °FInjection Molding

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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