eFunda Polymers: Properties of Polyamide {nylon (PA 66), copolymer}
engineering fundamentals Polymer Material Properties
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Polyamide
 
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State: nylon (PA 66), copolymer
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   1035 - 2829  tensile  dry (0.2% water content) D638
Flexural Modulus (MPa)   1035 - 2829   23 ºC  dry (0.2% water content) D790
Tensile Strength (MPa)   51 - 86 at break  dry (0.2% water content) D638
Flexural Strength (MPa)
at yield or break
  83     D790
Elongation at break (%)   40 - 150    dry (0.2% water content) D638
  300    50% relative humidity D638
Hardness  114 - 119  Rockwell R   D638
  75  Rockwell M  dry (0.2% water content) D638
  83  Rockwell R  50% relative humidity D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted
  0.4    dry (0.2% water content) D256A
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted
 no break     D256A

 Thermal Properties Conditions
Pressure State ASTM
Deflection Temperature (ºC)  221 - 227   0.46 MPa  dry (0.2% water content) D648
  57 - 77   1.82 MPa  dry (0.2% water content) D648

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.08 - 1.14   D792
Water Absorption (% weight increase)  9 - 10  saturated D570
 1.5 - 2  after 24 hrs D570
Dielectric Strength (V/mil);
1/8" thick specimen unless noted
  400  dry (0.2% water content) D149

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  200 - 255  Tm, crystalline  
Processing Temperature (ºC)  221 - 260  injection molding  
Molding Pressure (MPa)   7 - 103    
Linear Mold Shrinkage (cm/cm)  0.006 - 0.015   D955

Suppliers
AlliedSignal, Inc. Morristown, NJ  888-565-9835
Ashley Polymers Brooklyn, NY   
BASF Corp. Mount Olive, NJ  800-BC-RESIN
DuPont Co., Polymers Wilmington, DE  800-438-7225
EMS-American Grilon, Inc. Sumter, SC   
M.A. Hanna Engineered Materials Norcross, GA   
Nyltech NA Co., Inc. Manchester, NH   
Polymers International, Inc. Spartanburg, SC   
Solutia, Inc. St Louis, MO   
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