TECAMID® 6/12 Rod

TECAMID® 612 is nylon 6-12 (PA 612), a polyamide whose longer aliphatic chain segments carry fewer amide groups than nylon 6 or nylon 66 and therefore take up far less water. Absorption is 0.15% in 24 hours and 3.0% at saturation, which is the reason it gets specified over PA 66 wherever a nylon part has to keep its dimensions in wet or humid service. Mechanically it is a true engineering nylon: 10,000 psi tensile strength at yield, 14,000 psi flexural strength, 300,000 psi tensile modulus, 40% elongation at break, and a 0.31 static coefficient of friction.

Stock shapes go into heavy industrial, conveyor, power engineering, and general mechanical work as bearings, wear pads, guide rails, rollers, insulating spacers, fluid handling components, and pump and valve parts. Electrical performance is good, with 10^15 ohm-cm volume resistivity and 690 V/mil dielectric strength, and the UL 94 rating is HB. Continuous service is 185°F with a 422°F melting point. Machining is conventional for cast and extruded nylon, though stress relieving before final cuts pays off on close-tolerance work. It is less stiff than PA 66 and still swells somewhat when fully saturated.