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Rulon Bearings

MRC Polymers NAXALOY™ 794A1 Polycarbonate & Polyester Blend  (discontinued **)
Categories: Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate/PET Polyester Blend; Polyester, TP

Material Notes: Polycarbonate & Polyester Blend

Mechanical properties measured on 1/8 in. (3.2 mm) samples.

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Physical PropertiesMetricEnglishComments
Density 1.22 g/cc0.0441 lb/in³ASTM D792
Water Absorption 0.15 %0.15 %24 hours, ASTM D570
Linear Mold Shrinkage, Flow 0.0050 - 0.0080 cm/cm
@Thickness 3.17 mm
0.0050 - 0.0080 in/in
@Thickness 0.125 in
ASTM D955
Linear Mold Shrinkage, Transverse 0.0060 - 0.0090 cm/cm0.0060 - 0.0090 in/inASTM D955
Melt Flow 22 g/10 min
@Load 1.20 kg,
Temperature 300 °C
22 g/10 min
@Load 2.65 lb,
Temperature 572 °F
ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 52.0 MPa7540 psiASTM D638
Elongation at Break 25 %25 %ASTM D638
Flexural Yield Strength 76.0 MPa11000 psiASTM D790
Flexural Modulus 1.895 GPa274.9 ksiASTM D790
Izod Impact, Notched 3.204 J/cm6.002 ft-lb/inASTM D256
 
Thermal PropertiesMetricEnglishComments
Deflection Temperature at 0.46 MPa (66 psi) 110 °C230 °FUnannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 92.0 °C198 °FUnannealed; ASTM D648
Flammability, UL94 HB
@Thickness 1.47 mm
HB
@Thickness 0.0579 in
UL Rating, File #E92442
 
Processing PropertiesMetricEnglishComments
Processing Temperature 250 - 260 °C482 - 500 °F
Rear Barrel Temperature 238 - 255 °C460 - 491 °F
Middle Barrel Temperature 243 - 260 °C469 - 500 °F
Front Barrel Temperature 250 - 277 °C482 - 531 °F
Nozzle Temperature 255 - 271 °C491 - 520 °F
Mold Temperature 38.0 - 71.0 °C100 - 160 °F
Drying Temperature 99.0 - 110 °C210 - 230 °F
Dry Time 6 - 8 hour6 - 8 hour
Moisture Content <= 0.010 %<= 0.010 %
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 34.5 - 172 MPa5000 - 25000 psi
Back Pressure 0.345 - 1.03 MPa50.0 - 150 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

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PMRC955 / 21013

Aluminum Castings

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