Hi, I just recently did a chemical analysis of steel (from which the wakijashi blade is forged).
Further, it is already necessary to experiment, quenching is necessary for liquid oil, because these grains (nie, nioi) appear only at a low cooling rate, if the cooling rate is high, then the ham will be the same as on steels with a carbon content of 0, 8% and more .......
Therefore, we take steel with a carbon content of 0.5 - 0.6% (if we want to get "grains") ........