What is the differences between Nylon 6 and Nylon 66?

At Ai Plastics we want to make sure that our customers have all of the information needed when choosing materials for their projects.

Ertalon/Nylon is a very popular material and is specified in many projects and applications, however do you know which one is the right fit for your project? Below we have outlined some of the characteristics and typical applications of the Nylons listed above, to help give you all the information you need.

Extruded Nylon 6SA – Available in Natural and Black (rod and plate)

Nylon 6 SA is a general purpose grade of Nylon for mechanical construction and maintenance applications. Nylon 6 SA Natural (rods and plates) is available as a food grade as it is FDA approved. 

Characteristics:

  • Great combination of mechanical strength, stiffness, hardness, toughness and mechanical damping 
  • Good sliding properties 
  • Excellent wear resistance 
  • Good resistance high energy radiation (gamma and X-rays)
  • Exhibits good electrical insulating properties
  • Chemical resistance capabilities

Applications:

  • Insulators
  • Conveyor rollers
  • Sleeve and Slide bearings
  • Gears and Sprockets
  • Buffer blocks 

Cast Nylon 6 PLA - Available in Natural and Black (rod and plate)

The unmodified Cast Nylon 6 grade exhibits a lot of the characteristics similar to those of the Nylon 66 SA. However, it is has the highest strength and hardness of all of the Nylon 6 grades. Cast Nylon 6 PLA Natural (rods and plates) is available as a food grade as it is FDA approved. 

Characteristics:

  • High mechanical strength and damping ability, stiffness, hardness and toughness
  • Good fatigue resistance
  • Excellent wear resistance 
  • Good machinability 
  • Great for the food processing and packaging industry
  • Good resistance to high energy radiation (gamma and X-rays)

Applications:

  • Gears
  • Rollers
  • Bearings
  • Conveyor wear parts
  • Wheels

Nylon 66 SA - Available in Natural and Black (rod and plate)

This material has a higher mechanical strength, stiffness, toughness than Nylon 6SA as well as better heat, wear and creep resistance, but impact strength and mechanical dampening abilities are less. Nylon 66 SA Natural (rods and plate) is available as a food grade as it is FDA approved.

Characteristics:

  • Superior combination of high mechanical strength and damping ability, stiffness, hardness and toughness with a high melting point
  • Lower water absorption rate
  • Higher heat deflection temperature
  • Excellent wear resistance 
  • Good resistance to high energy radiation (gamma and X-rays)
  • Better chemical resistance to acids

Applications:

  • Bushings
  • Bearings
  • Gears
  • Roller and star wheels
  • seals
  • Also proven in power, railcars, steel, cement, chemical, grain, minerals and metal applications

Want to know more? Please call us on 0161 727 0250 or contact us for a quotation at enquiries@aiplastics.com

Or to purchase our Nylon 6 or Nylon 66 click here. 

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