White steel 3
White steel 3 (Shirogami #3) less purity and less hardness; carbon about 0.80-0.90%. Very easy to sharpen.
Knives made of Shirogami steel have a perfect cutting ability easy to sharpen and hold a cutting edge well. Many experts consider the cutting of Shirogami steel to be a reference but like all carbon steels, Shirogami is not resistant to corrosion and requires careful maintenance. Usual hardness range 60-64 HRc.