Heat Stabilized Cast Nylon 6 Plate

Heat-stabilised cast nylon 6 carries a stabiliser package that slows the loss of physical properties at temperature, so it runs about 10% hotter than standard cast nylon: continuous service goes from 230F to 250F and intermittent from 330F to 350F, with heat deflection at 264 psi extending into the 200 to 400F band. It is supplied blue, which is how it is identified in the rack. Mechanically it is cast nylon: 10,000 to 13,500 psi tensile strength on a 450,000 to 550,000 psi modulus, 15,000 to 17,500 psi flexural strength, 13,500 to 16,000 psi compressive strength and Rockwell R110 to R120.

It is machined into the same large gears, sheaves, wear pads, bushings and rollers as standard cast nylon, for duty that sits at the top of the nylon temperature range for long periods - drying lines, hot conveyors, parts near ovens and motors. Melting point is 430F and water absorption 0.5 to 0.6% in 24 hours, 4 to 6% at saturation. Two things worth knowing. Elongation narrows to 20 to 30%, so you pay in ductility for the 20F of service temperature. And blue is not a reliable identifier on its own - it is also used for oil-and-MoS2 cast grades and for some oil-filled variants, so check the certificate rather than the colour.