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Rulon Bearings

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LG Chemical ALPHALAC SG960 HIPS  (discontinued **)
Categories: Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Impact Grade, Glass Filled
Material Notes: Description: Injection Molding, General Purpose, Good Processability

Application: Washer Cover, Air-conditioner Panel, Refrigerator Parts

CAS No. 9003-55-8

Information provided by LG Chemical
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Physical PropertiesOriginal ValueComments
Specific Gravity 1.05 g/ccASTM D792
Maximum Moisture Content 0.010Injection Molding
Melt Flow 5.0 g/10 min
@Load 5.00 kg,
Temperature 200 °C		ASTM D1238(G)
 15 g/10 min
@Load 3.80 kg,
Temperature 230 °C		ASTM D1238(I)
 64 g/10 min
@Load 10.0 kg,
Temperature 220 °C		ASTM D1238(G)
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 107ASTM D785
Tensile Strength, Yield 370 kg(f)/cm²
@Thickness 3.20 mm		50mm/min; ASTM D638
Elongation at Break 57 %
@Thickness 3.20 mm		50mm/min; ASTM D638
Elongation at Yield 5.0 %
@Thickness 3.20 mm		50mm/min; ASTM D638
Tensile Modulus 21000 kg(f)/cm²
@Thickness 3.20 mm		1mm/min; ASTM D638
Flexural Yield Strength 560 kg(f)/cm²
@Thickness 3.20 mm		15mm/min; ASTM D790
Flexural Modulus 25000 kg(f)/cm²
@Thickness 3.20 mm		15mm/min; ASTM D790
Izod Impact, Notched 2.00 kg-cm/cm
@Thickness 6.50 mm,
Temperature -30.0 °C		ASTM D256
 4.00 kg-cm/cm
@Thickness 3.20 mm,
Temperature -30.0 °C		ASTM D256
 10.0 kg-cm/cm
@Thickness 6.50 mm,
Temperature 23.0 °C		ASTM D256
 15.0 kg-cm/cm
@Thickness 3.20 mm,
Temperature 23.0 °C		ASTM D256
 
Electrical PropertiesOriginal ValueComments
Arc Resistance 180 - 240 secASTM D495
Hot Wire Ignition, HWI 15 - 30 sec
@Thickness >=3.00 mm
High Amp Arc Ignition, HAI >= 120 arcs
@Thickness 3.00 mm
 
Thermal PropertiesOriginal ValueComments
Deflection Temperature at 0.46 MPa (66 psi) 90.0 °C
@Thickness 6.40 mm		Unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 79.0 °C
@Thickness 6.40 mm		Unannealed; ASTM D648
Vicat Softening Point 91.0 °C
@Load 5.00 kg		50°C/h; ASTM D1525
UL RTI, Electrical 50.0 °C
@Thickness >=1.50 mm
 50.0 °C
@Thickness >=3.00 mm
UL RTI, Mechanical with Impact 50.0 °C
@Thickness >=1.50 mm
 50.0 °C
@Thickness >=3.00 mm
UL RTI, Mechanical without Impact 50.0 °C
@Thickness >=1.50 mm
 50.0 °C
@Thickness >=3.00 mm
Flammability, UL94 HB
@Thickness >=1.50 mm
 HB
@Thickness >=3.00 mm
 
Processing PropertiesOriginal ValueComments
Rear Barrel Temperature 170 - 190 °CInjection Molding
Middle Barrel Temperature 180 - 200 °CInjection Molding
Front Barrel Temperature 190 - 210 °CInjection Molding
Nozzle Temperature 190 - 220 °CInjection Molding
Melt Temperature 190 - 220 °CInjection Molding
Mold Temperature 40.0 - 70.0 °CInjection Molding
Drying Temperature 80.0 °CInjection Molding
Dry Time 2.00 - 4.00 hourInjection Molding
Back Pressure 29.4 - 58.8 MPaInjection Molding
Screw Speed 30 - 60 rpmInjection Molding

**
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