I bought a box lot of metal at auction and incuded in with a bunch of aluminum and some 1018 CF was this stainless steel. Some of it is 304L and the rest is 316L. The square blocks are 2" square and the round stock is 1-3/8" diameter. I have read good and bad about it and I am not sure I should use it or can effectively machine the stuff. Any comments or suggestions from the forum?