GEHR Plastics PA 6.6 Nylon 6.6, Dry
Categories: Polymer; Thermoplastic; Nylon (Polyamide PA); Nylon 66 (PA66)
Material Notes: Polyamide shows both a high thermostability and high stiffness, hardness and toughness. These are some of the main characteristics. Due to the fact, that the good mechanical characteristics will be achieved only after conditioning, this material must be conditioned again after annealing. In addition, this conditioning occurs with a longer storage in air automatically. This polyamide has the highest hardness, rigidity, and a good resistance to wear and heat deflection temperature.

Properties:

  • high impact strength and stiffness
  • high impact and notching impact strength
  • high heat deflection temperature
  • good at dampening
  • good glide and limp home characters
  • good chemical stability against organic solvents and fuels
  • size alteration by humidity absorption must be considered
  • dimension stability, electrical and mechanical properties may become affected by absorbing moisture or water
Applications include bearing parts, gear wheels, pump parts, sliding rails, castors, and fittings.
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Physical PropertiesMetricEnglishComments
Specific Gravity 1.14 g/cc1.14 g/ccISO 1183
Moisture Absorption at Equilibrium 2.6 %2.6 %ISO 62
Water Absorption at Saturation 8.5 %8.5 %ISO 62
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 8383ISO 868
Ball Indentation Hardness 165 MPa23900 psiISO 2039
Tensile Strength, Yield 84.0 MPa12200 psiISO 527
Elongation at Break >= 70 %>= 70 %ISO 527
Elongation at Yield 7.0 %7.0 %ISO 527
Modulus of Elasticity 3.47 GPa503 ksiISO 527
Flexural Strength 110 MPa16000 psiISO 178
Charpy Impact Unnotched NBNBISO 179
Charpy Impact, Notched 0.450 J/cm²2.14 ft-lb/in²ISO 179
Coefficient of Friction 0.35 - 0.420.35 - 0.42DIN 53375
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 3.00e+13 ohm-cm3.00e+13 ohm-cmVDE 0303
Surface Resistivity per Square >= 1.00e+13 ohm>= 1.00e+13 ohmVDE 0303
Dielectric Strength 30.0 kV/mm762 kV/inVDE 0303
Dielectric Loss Index 0.020
@Frequency 1e+6 Hz		0.020
@Frequency 1e+6 Hz		DIN 53483
Comparative Tracking Index 600 V600 VIEC 60112
 
Thermal PropertiesMetricEnglishComments
CTE, linear 110 µm/m-°C
@Temperature 20.0 °C		61.1 µin/in-°F
@Temperature 68.0 °F		DIN 53752
Thermal Conductivity 0.350 W/m-K2.43 BTU-in/hr-ft²-°FDIN 52612
Melting Point 260 °C500 °FDIN EN ISO 3146
Maximum Service Temperature, Air 100 °C212 °FUL746B
Deflection Temperature at 0.46 MPa (66 psi) 200 °C392 °FISO 75
Deflection Temperature at 1.8 MPa (264 psi) 100 °C212 °FISO 75
Minimum Service Temperature, Air -30.0 °C-22.0 °F
Glass Transition Temp, Tg 47.0 °C117 °FDIN EN ISO 3146
Flammability, UL94 HBHB
Oxygen Index 27 %27 %ASTM D2863
 
Descriptive Properties
Acid Resistanceyes
Aromatic Resistanceyes
Bondabilityyes
CKW Resistanceno
ColorNatural
Hydrocarbonate Resistanceyes
Hydroxide Resistanceyes
Ketone Resistanceyes
Resistance Against Hot Wateryes

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