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BASF Ultramid® A4H PA66 (Conditioned)
Categories: Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon 66 (PA66); Nylon 66, Unreinforced
Material Notes: Description: Highly heat aging resistant, medium-viscosity injection-molding grade for highly stressed parts such as bearing cages, gearwheels, spool bodies and chain drive tensioners.

Information provided by BASF
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Physical PropertiesMetricEnglishComments
Bulk Density 0.500 - 0.800 g/cc0.0181 - 0.0289 lb/in³
Density 1.13 g/cc0.0408 lb/in³ISO 1183
Moisture Absorption at Equilibrium 2.5 - 3.1 %2.5 - 3.1 %23°C; 50% RH; ISO 62
Water Absorption at Saturation 8.0 - 9.0 %8.0 - 9.0 %ISO 62
Viscosity Measurement 190190ISO 307
Linear Mold Shrinkage 0.0090 cm/cm0.0090 in/inrestricted
Melt Flow 45.2 g/10 min
@Load 5.00 kg,
Temperature 275 °C		45.2 g/10 min
@Load 11.0 lb,
Temperature 527 °F		ISO 1133
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Yield 50.0 MPa7250 psi50 mm/min; ISO 527-1/-2
Elongation at Break >= 50 %>= 50 %Nominal, 50mm/min; ISO 527-1/-2
Elongation at Yield 20 %20 %50mm/min; ISO 527-1/-2
Modulus of Elasticity 1.20 GPa174 ksiISO 527-1/-2
Izod Impact, Notched (ISO)  7.00 kJ/m²
@Temperature -30.0 °C		3.33 ft-lb/in²
@Temperature -22.0 °F		ISO 180/A
 NB
@Temperature 23.0 °C		NB
@Temperature 73.4 °F		ISO 180/A
Charpy Impact Unnotched NBNBISO 179/1eU
Charpy Impact, Notched 2.50 J/cm²
@Temperature 23.0 °C		11.9 ft-lb/in²
@Temperature 73.4 °F		ISO 179/1eA
Tensile Creep Modulus, 1000 hours 700 MPa
@Strain <=0.5 %		102000 psi
@Strain <=0.5 %		ISO 899-1
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+10 ohm-cm1.00e+10 ohm-cmIEC 60093
Surface Resistance 1.00e+10 ohm1.00e+10 ohmIEC 60093
Dielectric Constant 5.0
@Frequency 1e+6 Hz		5.0
@Frequency 1e+6 Hz		IEC 60250
Dissipation Factor 0.20
@Frequency 1e+6 Hz		0.20
@Frequency 1e+6 Hz		IEC 60250
Comparative Tracking Index 600 V600 VTest solution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 1.70 J/g-°C0.406 BTU/lb-°F
Thermal Conductivity 0.330 W/m-K2.29 BTU-in/hr-ft²-°FDIN 52612
Melting Point 260 °C500 °FDIN 53765
Maximum Service Temperature, Air 118 °C244 °Ffor 50% loss of tensile strength after 20000hr
 138 °C280 °Ffor 50% loss of tensile strength after 5000hr
 200 °C392 °F
Decomposition Temperature >= 310 °C>= 590 °F
Ignition Temperature >= 400 °C>= 752 °FASTM D1929
 
Processing PropertiesMetricEnglishComments
Processing Temperature 80.0 °C176 °FHopper Throat
Zone 1 290 °C554 °FFeed zone
Zone 2 290 °C554 °FCompression
Zone 3 290 °C554 °FMetering-zone
Zone 4 290 °C554 °FNozzle
Melt Temperature 290 °C554 °FOptimal
 290 - 300 °C554 - 572 °FInjection-molding/Extrusion
Mold Temperature 40.0 - 80.0 °C104 - 176 °FInjection-molding
 60.0 °C140 °FOptimal
Drying Temperature 80.0 °C176 °F
Dry Time 4 hour4 hour
Moisture Content 0.030 - 0.060 %0.030 - 0.060 %Optimal
 <= 0.15 %<= 0.15 %
 
Descriptive Properties
Commercial StatusEurope
Peripheral Screw Speed< 0.3 m/s

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PBASG0227 / 131860

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