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Elmet Technologies

SABIC LEXAN™ 121M PC (Americas)
Categories: Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes: Non-halogenated. 17.5 MFR, for small, intricate parts. Improved internal mold release. ...

Information provided by SABIC
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Physical PropertiesMetricEnglishComments
Specific Gravity 1.20 g/cc1.20 g/ccASTM D792
 1.20 g/cc1.20 g/ccASTM D792
Density 1.19 g/cc0.0430 lb/in³ASTM D792
Water Absorption 0.15 %0.15 %24 hours; ASTM D570
Moisture Absorption at Equilibrium 0.35 %0.35 %ASTM D570
 0.58 %
@Temperature 100 °C		0.58 %
@Temperature 212 °F		ASTM D570
Linear Mold Shrinkage, Flow 0.0050 - 0.0080 cm/cm
@Thickness 3.20 mm		0.0050 - 0.0080 in/in
@Thickness 0.126 in		SABIC method
Melt Flow 17.5 g/10 min
@Load 1.20 kg,
Temperature 300 °C		17.5 g/10 min
@Load 2.65 lb,
Temperature 572 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 66.0 MPa9570 psi50 mm/min; ASTM D638
Tensile Strength, Yield 63.0 MPa9140 psi50 mm/min; ASTM D638
Elongation at Break 120 %120 %50 mm/min; ASTM D638
Elongation at Yield 7.0 %7.0 %50 mm/min; ASTM D638
Flexural Yield Strength 100 MPa14500 psi1.3 mm/min, 50 mm span; ASTM D790
Flexural Modulus 2.35 GPa341 ksi1.3 mm/min, 50 mm span; ASTM D790
Izod Impact, Notched 8.20 J/cm15.4 ft-lb/inASTM D256
 2.00 J/cm
@Temperature -30.0 °C		3.75 ft-lb/in
@Temperature -22.0 °F		ASTM D256
Izod Impact, Unnotched 21.4 J/cm40.1 ft-lb/inASTM D4812
Dart Drop, Total Energy 77.0 J56.8 ft-lbASTM D3763
Falling Dart Impact 169 J125 ft-lbASTM D3029
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 63.6 µm/m-°C
@Temperature -40.0 - 40.0 °C		35.3 µin/in-°F
@Temperature -40.0 - 104 °F		ASTM E831
CTE, linear, Transverse to Flow 65.0 µm/m-°C
@Temperature -40.0 - 40.0 °C		36.1 µin/in-°F
@Temperature -40.0 - 104 °F		ASTM E831
Specific Heat Capacity 1.26 J/g-°C0.301 BTU/lb-°FASTM C 351
Thermal Conductivity 0.190 W/m-K1.32 BTU-in/hr-ft²-°FASTM C177
Deflection Temperature at 0.46 MPa (66 psi) 137 °C
@Thickness 3.20 mm		279 °F
@Thickness 0.126 in		unannealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 132 °C
@Thickness 3.20 mm		270 °F
@Thickness 0.126 in		unannealed; ASTM D648
Vicat Softening Point 143 °C289 °FRate B/50; ASTM D1525
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.5861.586ASTM D542
Haze 1.0 %
@Thickness 2.54 mm		1.0 %
@Thickness 0.100 in		ASTM D1003
Transmission, Visible 88 %
@Thickness 2.54 mm		88 %
@Thickness 0.100 in		ASTM D1003
 
Processing PropertiesMetricEnglishComments
Nozzle Temperature 275 - 300 °C527 - 572 °FInjection Molding
Zone 1 260 - 280 °C500 - 536 °F
Zone 2 270 - 295 °C518 - 563 °F
Zone 3 280 - 305 °C536 - 581 °F
Melt Temperature 280 - 305 °C536 - 581 °F
Mold Temperature 70.0 - 95.0 °C158 - 203 °F
Drying Temperature 120 °C248 °FInjection Molding
Dry Time 3.00 - 4.00 hour3.00 - 4.00 hourInjection Molding
 48.0 hour48.0 hourCumulative; Injection Molding
Moisture Content 0.020 %0.020 %
Back Pressure 0.300 - 0.700 MPa43.5 - 102 psi
Shot Size 40 - 60 %40 - 60 %
Vent Depth 0.00250 - 0.00760 cm0.000984 - 0.00299 in
Screw Speed 40 - 70 rpm40 - 70 rpm

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

PSABI10387 / 243854




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