See if you can scavenge some scrap! Years ago when the US Navy was building its "Arleigh Burke" class destroyers I had the opportunity to visit a friend who worked in the mill that was making the connecting steel bars for use in the modular construction of the ships. I'm not sure of the exact application of the steel but the chunk my friend gave me was enough for five blades. I made him two, one for his brother, one for his Dad and one for my brother. It forged like bearing steel, but when annealed, filed like cold butter. I triple quenched the blades in canola oil and triple tempered to a dark straw, almost bronze color. To this day I am not sure how to classify the steel but the knives are still cutting and are performing well....at least I've had no complaints. Scraps are good!:)