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Elmet Technologies

American Polymers API 550 HF Polystyrene
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Modified

Material Notes: API 550 HF is a high impact grade of polystyrene. It is characterized by good impact and processability. API 550 HF offers good retention of mechanical properties in applications with long flow length requirements.

Applications:

Information provided by American Polymers, Inc.

Key Words: PS
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Physical PropertiesMetricEnglishComments
Density 1.04 g/cc0.0376 lb/in³ASTM D792
Melt Flow 12 g/10 min12 g/10 minCondition G; ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell L 4747ASTM D785
Tensile Strength, Ultimate 25.5 MPa3700 psiASTM D638
Elongation at Break 45 %45 %ASTM D638
Tensile Modulus 1.86 GPa270 ksiASTM D638
Flexural Modulus 2.14 GPa310 ksiASTM D790
Izod Impact, Notched 1.07 J/cm
@Thickness 3.17 mm
2.00 ft-lb/in
@Thickness 0.125 in
injection molded sample; ASTM D256
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 1.8 MPa (264 psi) 81.1 °C178 °FAnnealed; ASTM D648
Vicat Softening Point 85.0 °C185 °FASTM D1525

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PAMER012 / 24013

Ensinger PEI

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