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.

Specific gravity	0.0368 lb./in.3 (1.02 g/cc)	0.0376 lb./in.3 (1.04 g/cc)
Melting point	354°F (179°C)	374°F (190°C)
Glass transition temperature	113°F (45°C)	113°F (45°C)
Tensile strength at break	5000 psi (34.5 MPa)	9720 psi (67 MPa)
Elongation at break	225%	360%
Hardness durometer (Rockwell R)	87	87
Hardness durometer (Shore D)	62	72
Water absorption @ 24 hours	1.8%	1.8%
Sterilization	Not Available

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.