I MADE A BETTER AND INTERACTIVE GRAPHS HERE:       http://gr5.org/mat/       Okay well this post will grow when I add temperature properties.  I've been thinking about posting this for a few years.  Here is a graph showing some mechanical properties of some common filaments.  Please read explanation as this is a complicated subject.   Click to zoom in on chart (click 3 times - first click zooms, second click jumps to actual image, third click zoo