Nylon 6 has high viscosity, good melt strength even at high processing temperatures, good toughness and resistance to chemical attack. Compared to nylon 6,6, it is very slightly more impact resistance, slightly softer and slightly less resistant to high temperatures (it has a lower melt temperature). Compared to nylon 12, it is more brittle at low temperatures. Its higher moisture absorption gives it better impact resistance than nylon 12 when wet.

Nylon 6 begins as pure caprolactam. It is called "nylon 6" because caprolactam has 6 carbon atoms.


Property Measure Low Measure High
Specific Gravity 0.0365 lb./in. 3 (1.01 g/cc) 0.0423 lb./in.3 (1.17 g/cc)
Melting point 401°F (205°C) 432°F (222°C)
Glass transition temperature Not Applicable Not Applicable
Tensile strength at break 3630 psi (25 MPa) 13000 psi (89.6 MPa)
Elongation at break 315% 400%
Hardness durometer (Rockwell R) 120 120
Hardness durometer (Shore D) 60 80
Water absorption @ 24 hours 1.3% 1.7%
Sterilization Gamma radiation

This material data sheet is presented for reference only. For a specific application and environment, characteristics and performance may vary. Product design and suitability for use are the sole responsibility of Microspec’s customer. Microspec strongly urges customers to consult with the material manufacturer.