What is blade rockwell and how does this number translate into skating performance?
The rockwell number is an indication of the hardness of the blade steel and is indicated by a number followed by rc (58rc). The higher the rockwell number the harder the steel, the better the glide, the longer the blade stays sharp, the smoother the sharpened edge, but the more brittle the steel. Generally, it is not recommended that blades use over 58 rockwell steel unless they are a bi-metal blade because they will be too vulnerable to cracking and chipping.