While reading a couple of threads here and elsewhere recently the comments were made about a good hard grade of aluminum being a suitable substitute for mild steel. The aluminum mentioned specifically in one post was 6061-T6. I've made more than a few parts out of 1018 CRS and am now wondering if the 6061 I have in stock would indeed be suitable. Some of the parts I make are tool posts and holders for small benchtop lathes. Some illumination would be great. Thanks!