Rockwell Hardness Scale
November 18
A standardised measurement system used to assess the hardness of materials, including metals and alloys such as steel. An important factor in determining the blade's edge retention, durability, and sharpenability - higher Rockwell hardness values generally indicate a harder and more wear-resistant blade, while lower values indicate a softer and more flexible blade. However, excessively high hardness levels can make a blade more prone to chipping or breakage, particularly in thin or finely-edged knives.