Silver steel is common tool steel that is supplied as a centerless ground round bar (with tolerances similar to that of drill bit).
The name comes from the highly polished appearance of the rods; there is no silver in the alloy.
Amongst other applications, it has been widely used to make such things as punches, engravers, and screwdrivers.
In Finland, German silver steel was and still is widely used for Puukko knives.
The composition is defined by the British Standard BS-1407, and is given below.