The stainless Nitro-B is a surgical steel with a high nitrogen content. It has an extremely thin microstructure and is highly rust-resistant. However, it never played much of a role on the knife market. It is a robust steel with good edge retention and extreme hardness up to 62 HRC.

Carbon (%): 0,55
Chrome (%): 15,50
Manganese (%): 0,20
Silicon (%): 0,25
Nitrogen (%): 0,21
Molybdenum (%): 0,50
Vanadium (%): 0,10
Rockwell (HRC): up to 62