Amodel® A-4145 HH

About
Amodel® A-4145 HH is a 45% glass fiber reinforced heat stabilized grade of polyphthalamide (PPA) that has been designed to provide outstanding property retention to thermal oxidative degradation at temperatures of 230°C. Other features are fast cycling and hot water moldability. This product is particularly suitable to air induction applications within downsized automotive engines such as air induction charge air cooling and exhaust gas recirculation. Black: A-4145 HH BK324&&

Product Description
SupplierSolvay
GenericPPA
Material StatusCommercial: Active
FeaturesGood Rigidity,Good flexibility,Good Dimensional Stability,Quick molding cycle,Laser welding,High Heat Resistance,Lubricating,Solvent resistance,Low moisture absorption,Heat Stabilized,HB
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.57g/cm³ISO 1183/A
Shrinkage rate
TD0.80%ASTM D955
MD0.40%ASTM D955
Water absorption rate
24hr0.37%ASTM D570

MECHANICALNominal valueUnitTest method
Tensile modulus16400MPaISO 527-2
tensile strength ISO 527-2
Fracture, 23 ℃225MPaISO 527-2
Fracture, 200 ℃70.0MPaISO 527-2
Fracture, 230 ℃60.0MPaISO 527-2
Tensile strain ISO 527-2
Fracture, 23 ℃1.8%ISO 527-2
Fracture, 200 ℃6.1%ISO 527-2
Fracture, 230 ℃6.3%ISO 527-2
Bending modulus
23℃14500MPaISO 178
bending strength
23℃325MPaISO 178
compressive strength179MPaASTM D695
shear strength89.6MPaASTM D732
Poisson’s ratio0.41 ASTM E132

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃11kJ/m²ISO 179/1eA
Charpy Unnotch Impact strength
23℃80kJ/m²ISO 179/1eU
Impact strength of cantilever beam notch
23℃10kJ/m²ISO 180-1A
Notched impact strength of cantilever beam
23℃65kJ/m²ISO 180/1U

THERMALNominal valueUnitTest method
Hot deformation temperature
1.8 MPa, unannealed297ISO 75-2/A
Melting temperature327ISO 11357-3
Melting temperature327ASTM D570
Linear coefficient of thermal expansion
TD ASTM E831
MD ASTM E831
0 to 100 ℃2.0E-5cm/cm/℃ASTM E831
100 to 200 ℃1.5E-5cm/cm/℃ASTM E831
0 to 100 ℃7.6E-5cm/cm/℃ASTM E831
100 to 200 ℃1.2E-4cm/cm/℃ASTM E831

Electrical performanceNominal valueUnitTest method
Volume resistivity2.0E+15ohms·cmASTM D257
Dielectric strength
1.6 mm20kV/mmASTM D149
Dielectric constant ASTM D150
60 Hz3.80 ASTM D150
1 MHz3.60 ASTM D150
Dissipation factor ASTM D150
60 Hz4.0E-3 ASTM D150
1 MHz0.012 ASTM D150
Compared to the leakage tracing index600VUL 746
High voltage arc marking rate
HVTR14.0mm/minUL 746

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant level
3.20 mmHB UL 94

Process Conditions
injectionNominal valueUnitTest method
Drying temperature120°C
Drying time4.0hr
Recommended maximum moisture content0.045%
Barrel rear temperature318 to 324°C
Barrel front temperature327 to 332°C
Processing (melt) temperature330 to 335°C
Mold temperature66 to 93°C

Notes
1. Typical properties: these are not to be construed as specifications.
2. These flammability ratings are not intended to reflect hazards presented by these or any other materials under actual fire conditions.
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