eFunda Polymers: Properties of Polyamide {nylon (PA 612), molding compound}
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Polyamide		  
List of Suppliers
State: nylon (PA 612)
Application: molding compound
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   1505 - 2001  tensile  dry (0.2% water content) D638
  849 - 1242  tensile  50% relative humidity D638
Flexural Modulus (MPa)   1656 - 2305   23 ºC  dry (0.2% water content) D790
  511 - 690   23 ºC  50% relative humidity D790
Tensile Strength (MPa)   45 - 61 at break  dry (0.2% water content) D638
  41 - 58 at yield  dry (0.2% water content) D638
  22 at yield  50% relative humidity D638
Flexural Strength (MPa)
at yield or break		   76  dry (0.2% water content)   D790
Flexural Strength (MPa)
at yield or break		   30  50% relative humidity   D790
Elongation at break (%)   150    dry (0.2% water content) D638
  300    50% relative humidity D638
Hardness   78  Rockwell M  dry (0.2% water content) D638
  34  Rockwell M  50% relative humidity D638
 115  Rockwell R   D638
  72 - 80  Shore D  dry (0.2% water content) D638
  63  Shore D  50% relative humidity D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.5 - 1.0    dry (0.2% water content) D256A
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.7 - 0     D256A

 Thermal Properties Conditions
Pressure State ASTM
Deflection Temperature (ºC)  155 - 166   0.46 MPa  dry (0.2% water content) D648
  58 - 83   1.82 MPa  dry (0.2% water content) D648
Thermal Conductivity (W/m-ºC)  0.217     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.06 - 1.1   D792
Water Absorption (% weight increase)  2.5 - 3  saturated D570
 0.37 - 1  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)  195 - 219  Tm, crystalline  
Processing Temperature (ºC)  233 - 288  injection molding  
 240 - 243  extrusion  
Molding Pressure (MPa)   7 - 104    
Linear Mold Shrinkage (cm/cm)  0.011   D955

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Suppliers
A. Schulman Akron, OH  800-662-7203
ALM Corp. Wayne, NJ   
Ashley Polymers Brooklyn, NY   
Creanova, Inc. Somerset, NJ   
DuPont Co., Polymers Wilmington, DE  800-438-7225
EMS-American Grilon, Inc. Sumter, SC   
M.A. Hanna Engineered Materials Norcross, GA   

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