Lumid® GP2339B(W)

About
Description General Purpose Applications Automotive(Cylinder Head Cover)&&

Product Description
SupplierLG Chemical
GenericPA66
Material StatusCommercial: Active
AvailabilitysNorth America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.38g/cm³ASTM D792
Shrinkage rate
MD:3.2 mm0.40 to 0.90%ASTM D955
Water absorption rate
24hr0.70%ASTM D570

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃,3.2mm78J/mASTM D256

THERMALNominal valueUnitTest method
Hot deformation temperatureASTM D648
0.45 MPa, unannealed, 6.4 mm260
1.8 MPa, unannealed, 6.4 mm250
Melting peak temperature260ASTM D3418
Linear coefficient of thermal expansion
MD3.0E-51/℃ASTM D696

Electrical performanceNominal valueUnitTest method
Volume resistivity1.0E+16ohms·cmASTM D257
Dielectric strength
1 mm25kV/mmASTM D149
Dielectric constant
1 MHz4.00ASTM D150

MECHANICALNominal valueUnitTest method
Rockwell hardness
R-level122ASTM D785
tensile strength
Fracture, 3.20 mm177MPaASTM D638
Tensile strain
Fracture, 3.20 mm3.0%ASTM D638
Bending modulus
3.20 mm8830MPaASTM D790
bending strength
Yield, 3.20 mm255MPaASTM D790

Process Conditions
injectionNominal valueUnitTest method
Drying temperature80.0 to 100°C
Drying time4.0 to 5.0hr
Recommended maximum moisture content0.10%
Barrel rear temperature260 to 270°C
Barrel middle temperature270 to 285°C
Barrel front temperature270 to 290°C
Nozzle temperature270 to 295°C
Processing (melt) temperature270 to 295°C
Mold temperature80.0 to 110°C
Back pressure 50.981 to 2.94MPa
Screw speed60 to 150rpm

Notes
1. Typical properties: these are not to be construed as specifications.
2. 0.20 in/min
3. 0.051 in/min
4. Hydraulic Type
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