TECAMID® 6/6 Rod, Unmarked

TECAMID® 6/6 is extruded polyamide 66, supplied as rod, plate and calendered sheet. Among the unfilled nylons it is the stiff, hard one: tensile strength around 12,000 psi at yield (12,300 psi at break) with a tensile modulus of 350,000 psi and a flexural modulus of 440,000 psi, and it carries better heat and creep resistance than PA6. It wears well against steel at moderate loads and speeds and runs with low friction unlubricated, while still absorbing impact and vibration that would chip a harder material. Continuous service temperature is about 185°F, with short excursions to 300°F.

Typical parts are gears, sprockets, cams, bearings, bushings, wear pads, sheaves, insulators and slide rails for mechanical engineering, conveyor and packaging equipment, agricultural and forestry machinery, mining, construction and automotive work. Qualifying grades are available with food-contact conformity to FDA and EU Regulation 10/2011, and the material carries a UL 94 V-2 flammability rating. It machines readily but wants sharp tooling and support under thin sections. The honest limitation is moisture: nylon 66 picks up water and swells, so parts grow and lose stiffness in humid or wet service. Allow for it in tolerancing, or choose a lower-absorption polymer for precision work.