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Elmet Technologies

Quantum Composites Lytex® 4149 55% Carbon Fiber Epoxy SMC
Categories: Polymer; Thermoset; Carbon Fiber/Thermoset Composite; Composite SMC; Epoxy; Filled/Reinforced Thermoset

Material Notes: Lytex 4149 is a high-performance, 3K tow carbon fiber (PAN) reinforced epoxy sheet molding compound designed for military and aerospace structural applications requiring excellent mechanical properties, retention of properties at elevated temperatures, good chemical resistance, and low density. Form and Color = Sheet, Black. Fiber Length (Std.) = 1 inch.

A. Schulman has acquired Quantum Composites.

Key Words: Sheet Molding Compound
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 1.45 g/cc0.0524 lb/in³ASTM D792
Spiral Flow 33.0 cm
@Pressure 27.6 MPa,
Temperature 163 °C
13.0 in
@Pressure 4000 psi,
Temperature 325 °F
Mesa
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 289 MPa41900 psiASTM D638
Elongation at Break 0.487 %0.487 %ASTM D638
Tensile Modulus 55.1 GPa7990 ksiASTM D638
Flexural Yield Strength 613 MPa88900 psiASTM D790
Flexural Modulus 34.5 GPa5000 ksiASTM D790
Compressive Yield Strength 275 MPa39900 psiASTM D695
Compressive Modulus 31.7 GPa4600 ksiASTM D695
Shear Modulus 2.90 GPa421 ksiInterlaminar; ASTM D5379
 11.0 GPa1600 ksiIn-Plane; ASTM D5379
Shear Strength 65.5 MPa9500 psiInterlaminar; ASTM D5379
 206 MPa29900 psiIn Plane; ASTM D5379
Izod Impact, Notched 9.60 J/cm18.0 ft-lb/inASTM D256
 
Thermal PropertiesMetricEnglishComments
CTE, linear 3.60 µm/m-°C
@Temperature 20.0 °C
2.00 µin/in-°F
@Temperature 68.0 °F
TMA
Thermal Conductivity 0.474 W/m-K3.29 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 175 °C347 °FContinuous (1000 hrs)
 >= 300 °C>= 572 °FDeflection Temp; Load not reported; ASTM D648
Shrinkage 0.00 %0.00 %
 
Processing PropertiesMetricEnglishComments
Processing Temperature 120 - 166 °C248 - 331 °FMold temperature
Shelf Life 6.00 Month
@Temperature -12.2 °C
6.00 Month
@Temperature 10.0 °F

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