Japanese Suminagashi Steel without Core Layer, 150 x 15 x 5 mm

This 8-layered Suminagashi steel is usually forged onto both sides of a hard core layer (Blue or...

This 8-layered Suminagashi steel is usually forged onto both sides of a hard core layer (Blue or White Paper Steel). Each of these eight layers of steel consists in turn of a »Gokunan-Koh« layer (traditional soft steel) that is welded to a thin, alloyed carbon steel layer, which prevents the steel from decarbonising too quickly.

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