eFunda Polymers: Properties of Polyamide {nylon (PA 66), molding compound}
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Polyamide		  
List of Suppliers
State: nylon (PA 66)
Application: molding compound
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   1587 - 3795  tensile  dry (0.2% water content) D638
  1587 - 3450  tensile  50% relative humidity D638
Flexural Modulus (MPa)   2829 - 3243   23 ºC  dry (0.2% water content) D790
  1277   23 ºC  50% relative humidity D790
Tensile Strength (MPa)   95 at break  dry (0.2% water content) D638
  76 at break  50% relative humidity D638
  56 - 83 at yield  dry (0.2% water content) D638
  45 - 59 at yield  50% relative humidity D638
Compressive Strength (MPa)
at yield or break		   87 - 104  at yield   D695
Flexural Strength (MPa)
at yield or break		   12 - 124  dry (0.2% water content)   D790
Flexural Strength (MPa)
at yield or break		   43  50% relative humidity   D790
Elongation at break (%)   15 - 80    dry (0.2% water content) D638
  150 - 300    50% relative humidity D638
Hardness  120  Rockwell R  dry (0.2% water content) D638
  83  Rockwell M  dry (0.2% water content) D638
  95 - 105  Rockwell M  50% relative humidity D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.3 - 0.5    dry (0.2% water content) D256A
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.5 - 1.1    50% relative humidity D256A

 Thermal Properties Conditions
Pressure State ASTM
Coef of Thermal Expansion (10-6/ºC)   80     D696
Deflection Temperature (ºC)  219 - 246   0.46 MPa   D648
  70 - 100   1.82 MPa  dry (0.2% water content) D648
Thermal Conductivity (W/m-ºC)  0.242     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.13 - 1.15   D792
Water Absorption (% weight increase)  8.5  saturated D570
 1 - 2.8  after 24 hrs D570
Dielectric Strength (V/mil);
1/8" thick specimen unless noted		   600  dry (0.2% water content) D149

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  255 - 265  Tm, crystalline  
Processing Temperature (ºC)  260 - 327  injection molding  
Molding Pressure (MPa)   7 - 173    
Compression Ratio  3 - 4    
Linear Mold Shrinkage (cm/cm)  0.007 - 0.018   D955

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Suppliers
A. Schulman Akron, OH  800-662-7203
Adell Plastics, Inc. Baltimore, MD  800-638-5218
Albis Corp. Rosenburg, TX  800-231-5911
ALM Corp. Wayne, NJ   
Ashley Polymers Brooklyn, NY   
Bamberger Polymers, Inc. Jericho, NY   
BASF Corp. Mount Olive, NJ  800-BC-RESIN
Bayer Corp. Pittsburgh, PA  800-662-2927
ComAlloy International Co. Nashville, TN   
DSM Engineering Plastic Products, Inc. Reading, PA  800-729-0101
DuPont Co., Polymers Wilmington, DE  800-438-7225
EMS-American Grilon, Inc. Sumter, SC   
M.A. Hanna Engineered Materials Norcross, GA   
MRC Polymers, Inc. Chicago, IL   
Network Polymers, Inc. Akron, OH  888-437-4674
Nyltech NA Co., Inc. Manchester, NH   
Polymer Resources, Ltd. Farmington, CT  800-243-5176
Polymers International, Inc. Spartanburg, SC   
Solutia, Inc. St Louis, MO   
Thermofil, Inc. Brighton, MI  800-444-4408
Ticona Summit, NJ  800-526-4960
Wellman, Inc. Johnsonville, SC   

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