eFunda Polymers: Properties of Polyamide {nylon (PA 11), molding and extrusion compound}
engineering fundamentals Polymer Material Properties
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Polyamide		  
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State: nylon (PA 11)
Application: molding and extrusion compound
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   1277  tensile  dry (0.2% water content) D638
  1242  compressive  dry (0.2% water content) D638
Flexural Modulus (MPa)   304 - 1242   23 ºC  dry (0.2% water content) D790
  138   94 ºC   D790
Tensile Strength (MPa)   56 - 66 at break  dry (0.2% water content) D638
Compressive Strength (MPa)
at yield or break		   51 - 54     D695
Elongation at break (%)   300 - 400    dry (0.2% water content) D638
Hardness  108  Rockwell R  dry (0.2% water content) D638
  80  Rockwell R   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   1.0 - 0     D256A

 Thermal Properties Conditions
Pressure State ASTM
Coef of Thermal Expansion (10-6/ºC)  100     D696
Deflection Temperature (ºC)  149   0.46 MPa  dry (0.2% water content) D648
  40 - 53   1.82 MPa   D648
Thermal Conductivity (W/m-ºC)  0.334     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.03 - 1.05   D792
Water Absorption (% weight increase)  1.9  saturated D570
 0.4  after 24 hrs D570
Dielectric Strength (V/mil);
1/8" thick specimen unless noted		   650 - 750   D149

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  180 - 190  Tm, crystalline  
Processing Temperature (ºC)  199 - 272  injection molding  
 199 - 247  extrusion  
Molding Pressure (MPa)   7 - 104    
Compression Ratio  2.7 - 3.3    
Linear Mold Shrinkage (cm/cm)  0.012   D955

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Suppliers
Elf Atochem North America, Inc. Philadelphia, PA  800-225-7788

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