dmac:
store bought one i have been using for years is 1095. i have never used it as a knife, but i think S2 or S7 tool steel might make a dandy. both can be hardened to Rc60 and both were designed to used to make chisels, punches, and other items that take a hard hit. i am working on a small one (blade 6" x 2 1/2" x 1/8") using Aldo's 1084.