Material Experience C&A Machine has worked with many material grades since opening our doors. We have experience turning bars from 0.250” to 4.000” in diameter. Here are a few of the grades we turn on a regular basis: Materials Turned: 300 Series 400 Series 52100 17-4 15-5 13-8 A286 Hastelloy Waspaloy Stellite Inconel XD16N BG42 M50 Carbon Steel Alloy Steel Aluminum