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Rulon Bearings

MRC Polymers NAXALOY™ 793 PC/PET Blend, High Impact Strength and Chemical Resistance  (discontinued **)
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate/PET Polyester Blend; Polyester, TP; Polyethylene Terephthalate (PET)
Material Notes: PC/PET Blend, Weatherable, High Impact Strength and Chemical Resistance, Dimensional Stability

Mechanical properties measured on 1/8 in. (3.2 mm) samples.
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Physical PropertiesMetricEnglishComments
Density 1.21 g/cc0.0437 lb/in³ASTM D792
Water Absorption 0.14 %0.14 %24 hrs; ASTM D570
Linear Mold Shrinkage, Flow 0.0050 - 0.0080 cm/cm0.0050 - 0.0080 in/in1/8" (3.2 mm); ASTM D955
Linear Mold Shrinkage, Transverse 0.0070 - 0.0090 cm/cm0.0070 - 0.0090 in/inASTM D955
Melt Flow 18 g/10 min
@Load 2.16 kg,
Temperature 275 °C		18 g/10 min
@Load 4.76 lb,
Temperature 527 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 56.0 MPa8120 psiASTM D638
Elongation at Break 50 %50 %ASTM D638
Flexural Yield Strength 83.0 MPa12000 psiASTM D790
Flexural Modulus 2.136 GPa309.8 ksiASTM D790
Izod Impact, Notched 6.41 J/cm12.0 ft-lb/inASTM D256
Impact Test 44.0 J
@Temperature 23.0 °C		32.5 ft-lb
@Temperature 73.4 °F		ASTM D3763
 46.0 J
@Thickness 3.17 mm,
Temperature -30.0 °C		33.9 ft-lb
@Thickness 0.125 in,
Temperature -22.0 °F		46 J Instrumented Impact Total Energy; 7.5 MPH (12.23 km/h).; ASTM D3763
 
Thermal PropertiesMetricEnglishComments
CTE, linear 61.2 µm/m-°C
@Temperature -40.0 - 35.0 °C		34.0 µin/in-°F
@Temperature -40.0 - 95.0 °F		ASTM D696
Deflection Temperature at 0.46 MPa (66 psi) 132 °C270 °FUnannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 115 °C239 °FUnannealed; ASTM D648
Flammability, UL94 HB
@Thickness 1.47 mm		HB
@Thickness 0.0579 in		UL File Number E92442
 
Processing PropertiesMetricEnglishComments
Processing Temperature 260 - 282 °C500 - 540 °F
Rear Barrel Temperature 255 - 270 °C491 - 518 °F
Middle Barrel Temperature 260 - 277 °C500 - 531 °F
Front Barrel Temperature 266 - 282 °C511 - 540 °F
Nozzle Temperature 257 - 265 °C495 - 509 °F
Mold Temperature 38.0 - 82.0 °C100 - 180 °F
Drying Temperature 116 - 127 °C241 - 261 °F
Dry Time 6 - 8 hour6 - 8 hour
Moisture Content <= 0.015 %<= 0.015 %
Dew Point <= -17.8 °C<= 0.000 °F
Drying Air Flow Rate 22.7 - 28.3 l/min0.800 - 1.00 ft³/min (CFM)per lb/hour resin processed
Injection Pressure 68.9 - 138 MPa10000 - 20000 psi
Back Pressure 0.000 - 0.517 MPa0.000 - 75.0 psi
Cushion 0.635 cm0.250 in
Screw Speed 20 - 50 rpm20 - 50 rpm
 
Descriptive Properties
Fill RateModerate - Fast
Hold Pressure40 - 60% of injection pressure
Packing Pressure50 - 75% of injection pressure

**
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