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Rulon Bearings

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SABIC VALOX™ 830 PBT (Americas)
Categories: Polymer; Thermoplastic; Polyester, TP; Polybutylene Terephthalate (PBT)
Material Notes: 30% GR PBTP, excellent surface finish. Typical applications are hot air gun housing assemblies, industrial glue guns, appliance housings and handles.

Information provided by SABIC
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Physical PropertiesOriginal ValueComments
Specific Gravity 1.49 g/ccASTM D792
 1.54 g/ccASTM D792
Water Absorption 0.060 %24 hours; ASTM D570
Linear Mold Shrinkage, Flow 0.0030 - 0.0050 cm/cm
@Thickness 1.50 - 3.20 mm		SABIC method
 0.0050 - 0.0080 cm/cm
@Thickness 3.20 - 4.60 mm		SABIC method
Linear Mold Shrinkage, Transverse 0.0040 - 0.0060 cm/cm
@Thickness 1.50 - 3.20 mm		SABIC method
 0.0060 - 0.0090 cm/cm
@Thickness 3.20 - 4.60 mm		SABIC method
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell R 119ASTM D785
Tensile Strength at Break 106 MPa5 mm/min; ASTM D638
Tensile Strength, Yield 103 MPa5 mm/min; ASTM D638
Flexural Strength 172 MPabrk, 1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus 7000 MPa1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched 85.0 J/mASTM D256
Izod Impact, Unnotched 640 J/mASTM D4812
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 4.00e+16 ohm-cmASTM D257
Dielectric Constant 3.5
@Frequency 1e+6 Hz		ASTM D150
 3.6
@Frequency 100 Hz		ASTM D150
Dielectric Strength 20.8 kV/mm
@Thickness 3.20 mm		in air; ASTM D149
 24.8 kV/mm
@Thickness 1.60 mm		in oil; ASTM D149
Dissipation Factor 0.0020
@Frequency 100 Hz		ASTM D150
 0.020
@Frequency 1e+6 Hz		ASTM D150
Arc Resistance 60 - 120 secASTM D495
Comparative Tracking Index 250 - 400 VUL 746A
Hot Wire Ignition, HWI >= 120 secUL 746A
High Amp Arc Ignition, HAI 15 - 30 arcsUL 746A
High Voltage Arc-Tracking Rate, HVTR 25.4 - 80.0 mm/minUL 746A
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 25.2 µm/m-°C
@Temperature 60.0 - 138 °C		ASTM E831
 27.0 µm/m-°C
@Temperature -40.0 - 40.0 °C		ASTM E831
Deflection Temperature at 0.46 MPa (66 psi) 221 °C
@Thickness 6.40 mm		unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 193 °C
@Thickness 6.40 mm		unannealed; ASTM D648
UL RTI, Electrical 120 °CUL 746B
UL RTI, Mechanical without Impact 120 °CUL 746B
Flammability, UL94 HB
@Thickness 1.47 mm		UL 94
 
Processing PropertiesOriginal ValueComments
Nozzle Temperature 245 - 260 °CInjection Molding
Zone 1 240 - 255 °C
Zone 2 245 - 260 °C
Zone 3 250 - 265 °C
Melt Temperature 250 - 265 °C
Mold Temperature 65.0 - 90.0 °C
Drying Temperature 120 °CInjection Molding
Dry Time 3.00 - 4.00 hourInjection Molding
 12.0 hourCumulative; Injection Molding
Moisture Content 0.020 %
Back Pressure 0.300 - 0.700 MPa
Shot Size 40 - 80 %
Vent Depth 0.00250 - 0.00380 cm
Screw Speed 50 - 80 rpm

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PSABI10244 / 243711

Aluminum Castings




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