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Americas Styrenics STYRON® 498 High Impact Polystyrene

Category Polymer , Thermoplastic , Polystyrene (PS) , Polystyrene, Impact Modified
Manufacturer Americas Styrenics LLC
Trade Name STYRON®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Americas Styrenics STYRON® 498 High Impact Polystyrene.pdf
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Material Notes:
Product CharacteristicsHigh glossHigh impactFood Contact CompliantUL Classification 94HBTypical ApplicationsAppliancesMedicalHousewaresConsumer electronicsInformation provided by AmericasStyrenics LLC.
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 3.5 g/10 min

@Load 5.00 kg,
Temperature 200 °C
3.5 g/10 min

@Load 11.0 lb,
Temperature 392 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Rockwell R 114
114
ASTM D785
Tensile Strength at Break 29.6 MPa
4300 psi
ASTM D638
Tensile Strength 35.9 MPa
5200 psi
ASTM D638
Elongation at Break 45 %
45 %
ASTM D638
Tensile Modulus 2.24 GPa
325 ksi
ASTM D638
Flexural Strength 48.3 MPa
7000 psi
ASTM D790
Flexural Modulus 2.34 GPa
340 ksi
ASTM D790
Izod Impact, Notched 0.854 J/cm
1.60 ft-lb/in
compression molded; ASTM D256
1.07 J/cm
2.00 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) 93.3 °C
200 °F
ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 82.8 °C
181 °F
ASTM D648
Vicat Softening Point 105 °C
221 °F
ASTM D1525
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