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GEHR PA® 6.6 is slightly increased surface hardness and rigidity of PA 6.6 is due to the reduced moisture absorption behavior compared to PA 6 XT. Abrasion resistance and heat deflection temperature could also be optimized at the expense of toughness.

Polymer Name: Polyamide 66 (PA 66)

Physical Form: Custom, Rods, Sheets

Features: Abrasion Resistant, Chemical Resistant, Dimensional Stability, Excellent Surface Hardness, Good Impact Strength, Good Rigidity, Good Sliding Properties, High Heat Deflection Temperature, High Stiffness, High Strength, Humidity Resistant, Low Moisture Absorption, Shock Absorbent

Density: 1110.0 - 1140.0 kg/m³

Color: Black

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Technologies

Features & Benefits

Properties
  • High strength and stiffness
  • High impact and notch impact strength
  • High heat deflection temperature
  • Shock-absorbing properties
  • Good sliding and dry running operating features
  • 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 water absorption

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications
  • Bearing parts (good sliding properties)
  • Gear wheels
  • Pump parts
  • Sliding rails
  • Rollers (reduction of the noise level)
  • Fittings

Properties

Color
Flame Rating
Physical Form
Form and Condition
Rods. Sheets / Solid
Odor
Odorless
Insoluble in
Water
Mechanical Properties
ValueUnitsTest Method / Conditions
Tensile Strength at Yield80MPaISO 527
Elongation at Yield (S)7%ISO 527
Elongation at Break (R)min. 70%ISO 527
Impact Strength (an)No breakkJ/m2ISO 179
Ball Indentation (Rockwell Hardness)170MPaISO 2039
Hardness83Shore DISO 868
Flexural Strength (B 3,5 %)110MPaISO 178
Modulus of elasticity (Et)3470MPaISO 527
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.14ISO 1183
Water Absorption8.5%ISO 62
Humidity Absorption2.6%ISO 62
Maximum Permissible Service Temperature100°CUL746B
Lower Permissible Service Temperature-30°CUL746B
Thermal Properties
ValueUnitsTest Method / Conditions
Heat Deflection Temperature (HDT/B)200°CISO 75
Heat Deflection Temperature (HDT/A)100°CISO 75
Coefficient of Linear Thermal Expansion1.1K-1.10-4ISO 11359
Thermal Conductivity (20°C)0.35W/(m.K)ISO 22007-4
Glass Transition Temperature (Tg)47°CISO 3146
Melting Temperature (Tm)260°CISO 3146
Typical Properties
ValueUnitsTest Method / Conditions
Density1.11 - 1.14g/cm³
Melting Temperaturemin. 220°C
Thermal Decompositionmin. 300°C
Ignition Temperaturemin. 400°C
Electrical Properties
ValueUnitsTest Method / Conditions
Volume Resistivitymin. 10^13Ω.cmIEC 60093
Surface Resistivity (Ro)min. 10^13ΩIEC 60093
Dielectric Constant (1MHz)3.6-IEC 60250
Dielectric Loss Factor (1 MHz)0.026 (0.2)-IEC 60250
Dielectric Strength30/ 28kV/mmIEC 60243-1
Tracking ResistanceCTI 600VIEC 60112
Additional Information
ValueUnitsTest Method / Conditions
BondabilityYes--
Physiological Indifference (EEC)Yes-
Physiological Indifference (FDA)Yes-
FlammabilityHB-UL 94
Limiting Oxygen Index (LOI, 9)27%ASTM D2863

Regulatory & Compliance

Certifications & Compliance

Technical Details & Test Data

Fire-fighting Measures

Suitable extinguishing agents

Water, foam, dry chemical, carbon dioxide (CO2).

Potential combustion products

Carbon dioxide (CO2), carbon monoxide (CO). Formation of further decomposition and oxidation products depend upon the fire conditions. Under special fire conditions traces of other toxic substances are possible.

Special protective equipment

Wear a self-contained breathing apparatus.

Further information

Dispose of fire debris and contaminated extinguishing water in accordance with official regulations..

Safety & Health

Safety Measures

The general industrial safety measures should be considered. A thermal damage during machining should be avoided.

Storage & Handling

Machining

The product can be machined with standard machinery and tools. Before machining the product should be stored at room temperature 24 h. Evacuate swarf to prevent slipping or tripping. Observe the maximum allowable concentration of dust levels on the working area which apply in your country. Wear safety goggles during machining. General dust limit value: Respirable dust (6 mg/m3); Inhalable dust (10 mg/m3).

Storage

The products shall be stored indoor to keep away from any source of degradation such as sunlight, UV-jets, ionizing radiation, chemicals.