Chi Mei Polyrex® PH-888H Polystyrene

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Chi Mei Polyrex® PH-888H Polystyrene - High Impact
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Heat Resistant Grade; Polystyrene, Impact Modified
Material Notes:	High FDI; high heat
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Physical Properties	Metric	English	Comments

Density	1.05 g/cc	0.0379 lb/in³	ISO 1183
Melt Flow	3.8 g/10 min @Load 10.0 kg, Temperature 220 °C	3.8 g/10 min @Load 22.0 lb, Temperature 428 °F	Melt Volume Rate (ml/10 min); ISO 1133

Mechanical Properties	Metric	English	Comments
Ball Indentation Hardness	81.0 MPa	11700 psi	H358/30; ISO 2039-1
Tensile Strength at Break	30.0 MPa	4350 psi	50 mm/min; ISO 527
Tensile Strength, Yield	30.0 MPa	4350 psi	50 mm/min; ISO 527
Elongation at Break	58 %	58 %	50 mm/min; ISO 527
Flexural Strength	39.0 MPa	5660 psi	2 mm/min; ISO 178
Flexural Modulus	1.50 GPa	218 ksi	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	8.00 kJ/m²	3.81 ft-lb/in²	ISO 180/1A
Izod Impact, Unnotched (ISO)	NB	NB	ISO 180/1C
Charpy Impact Unnotched	NB	NB	ISO 179
Charpy Impact, Notched	0.900 J/cm²	4.28 ft-lb/in²	ISO 179
Impact	8.0	8.0	Impact Flexural Test Notched (KJ/m²)
	90	90	Impact Flexural Test Unnotched (KJ/m²)

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	77.0 °C	171 °F	unannealed; ISO 75
	96.0 °C	205 °F	annealed; ISO 75
Vicat Softening Point	92.0 °C @Load 5.00 kg	198 °F @Load 11.0 lb	50°C/hr; ISO 306
	95.0 °C @Load 5.00 kg	203 °F @Load 11.0 lb	120°C/hr; ISO 306
	102 °C @Load 1.00 kg	216 °F @Load 2.20 lb	50°C/hr; ISO 306
	107 °C @Load 1.00 kg	225 °F @Load 2.20 lb	120°C/hr; ISO 306
Flammability, UL94	HB @Thickness 1.59 mm	HB @Thickness 0.0625 in	UL 94

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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PCHI940 / 109428

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