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BASF Ultramid® KR 4350 PA6/6T (Dry)
Categories: Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon 6 (PA6); Nylon 6, Unreinforced

Material Notes: Description: For injection-molding and extrusion, exhibiting high toughness, strength and stiffness, low water absorption, high melting point (295 °C [563°F]). The mechanical properties remain constant after moisture absorption up to a temperature of 60°C [140°F].

Information provided by BASF

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Physical PropertiesMetricEnglishComments
Density 1.16 g/cc0.0419 lb/in³ISO 1183
Moisture Absorption at Equilibrium 1.6 - 2.0 %1.6 - 2.0 %23°C; 50% RH; ISO 62
Water Absorption at Saturation 6.5 - 7.5 %6.5 - 7.5 %ISO 62
Viscosity Measurement 130130ISO 307
Linear Mold Shrinkage 0.0060 cm/cm0.0060 in/inrestricted
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength  10.0 MPa
@Strain 2 %,
Temperature 100 °C
1450 psi
@Strain 2 %,
Temperature 212 °F
50mm/min
 40.0 MPa
@Strain 2 %,
Temperature 80.0 °C
5800 psi
@Strain 2 %,
Temperature 176 °F
50mm/min
 60.0 MPa
@Strain 2 %,
Temperature 60.0 °C
8700 psi
@Strain 2 %,
Temperature 140 °F
50mm/min
 75.0 MPa
@Strain 2 %,
Temperature 23.0 °C
10900 psi
@Strain 2 %,
Temperature 73.4 °F
50mm/min
Tensile Strength, Yield 100 MPa14500 psi50 mm/min; ISO 527-1/-2
Tensile Stress at Strain  20.0 MPa
@Strain 5.0 %,
Temperature 100 °C
2900 psi
@Strain 5.0 %,
Temperature 212 °F
50mm/min
 25.0 MPa
@Strain 8.0 %,
Temperature 100 °C
3630 psi
@Strain 8.0 %,
Temperature 212 °F
50mm/min
 50.0 MPa
@Strain 5.0 %,
Temperature 80.0 °C
7250 psi
@Strain 5.0 %,
Temperature 176 °F
50mm/min
 50.0 MPa
@Strain 8.0 %,
Temperature 80.0 °C
7250 psi
@Strain 8.0 %,
Temperature 176 °F
50mm/min
 73.0 MPa
@Strain 8.0 %,
Temperature 60.0 °C
10600 psi
@Strain 8.0 %,
Temperature 140 °F
50mm/min
 75.0 MPa
@Strain 5.0 %,
Temperature 60.0 °C
10900 psi
@Strain 5.0 %,
Temperature 140 °F
50mm/min
 80.0 MPa
@Strain 8.0 %,
Temperature 23.0 °C
11600 psi
@Strain 8.0 %,
Temperature 73.4 °F
50mm/min
 110 MPa
@Strain 5.0 %,
Temperature 23.0 °C
16000 psi
@Strain 5.0 %,
Temperature 73.4 °F
50mm/min
Elongation at Yield 8.0 %8.0 %50 mm/min; ISO 527-1/-2
Modulus of Elasticity 3.20 GPa464 ksiISO 527-1/-2
 1.75 GPa
@Temperature 100 °C
254 ksi
@Temperature 212 °F
ISO 527
 3.00 GPa
@Temperature 80.0 °C
435 ksi
@Temperature 176 °F
ISO 527
 3.50 GPa
@Temperature 60.0 °C
508 ksi
@Temperature 140 °F
ISO 527
 3.75 GPa
@Temperature 40.0 °C
544 ksi
@Temperature 104 °F
ISO 527
Flexural Modulus 2.90 GPa421 ksiISO 178
Izod Impact, Notched (ISO) 7.00 kJ/m²
@Temperature 23.0 °C
3.33 ft-lb/in²
@Temperature 73.4 °F
ISO 180/A
Charpy Impact Unnotched  10.5 J/cm²
@Temperature -30.0 °C
50.0 ft-lb/in²
@Temperature -22.0 °F
ISO 179/1eU
 12.0 J/cm²
@Temperature 23.0 °C
57.1 ft-lb/in²
@Temperature 73.4 °F
ISO 179/1eU
Charpy Impact, Notched  1.00 J/cm²
@Temperature -30.0 °C
4.76 ft-lb/in²
@Temperature -22.0 °F
ISO 179/1eA
 1.30 J/cm²
@Temperature 23.0 °C
6.19 ft-lb/in²
@Temperature 73.4 °F
ISO 179/1eA
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+13 ohm-cm1.00e+13 ohm-cmIEC 60093
Dielectric Constant 4.0
@Frequency 1e+6 Hz
4.0
@Frequency 1e+6 Hz
IEC 60250
Dissipation Factor 0.030
@Frequency 1e+6 Hz
0.030
@Frequency 1e+6 Hz
IEC 60250
Comparative Tracking Index 600 V600 VTest solution A; IEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear, Parallel to Flow 60.0 - 80.0 µm/m-°C
@Temperature 23.0 - 80.0 °C
33.3 - 44.4 µin/in-°F
@Temperature 73.4 - 176 °F
DIN 11359-1/-2
Specific Heat Capacity 1.50 J/g-°C0.359 BTU/lb-°F
Thermal Conductivity 0.230 W/m-K1.60 BTU-in/hr-ft²-°FDIN 52612
Melting Point 295 °C563 °FDIN 53765
Maximum Service Temperature, Air 110 °C230 °Ffor 50% loss of tensile strength after 20000hr
 130 °C266 °Ffor 50% loss of tensile strength after 5000hr
 250 °C482 °F
Deflection Temperature at 1.8 MPa (264 psi) 95.0 °C203 °FISO 75-1/-2
Flammability, UL94 HB
@Thickness 1.60 mm
HB
@Thickness 0.0630 in
 
Processing PropertiesMetricEnglishComments
Melt Temperature 310 - 330 °C590 - 626 °FInjection-molding/Extrusion
Mold Temperature 70.0 - 100 °C158 - 212 °FInjection-molding
 
Descriptive Properties
Commercial StatusEurope

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