Nylon 12 is the most flexible and toughest nylon in dry conditions. When saturated in water, it becomes stiffer and more rigid than all other nylons. Whether wet or dry, it has the lowest abrasion. The crystallite melting point is lower than that of other nylons, giving nylon 12 the lowest heat distortion temperature and softening point. It resists high impact at low temperatures when dry but nylon 6 and 6,6 have better impact resistance when wet.

Nylon 12 is a copolymer and gets its name from the twelve carbons donated by each monomer.


Property Measure Low Measure High
Specific gravity 0.0412 lb./in.3 (1.14 g/cc) 0.0488 lb./in.3 (1.35 g/cc)
Melting point 489°F (254°C) 590°F (310°C)
Glass transition temperature Not Applicable Not Applicable
Tensile strength at break 8557 psi (59 MPa) 11200 psi (77.2 MPa)
Elongation at break 50% 300%
Hardness durometer (Rockwell R) 90 121
Hardness durometer (Rockwell M) 60 101
Water absorption @ 24 hours 1.2% 1.2%
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.